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mirror of https://git.yoctoproject.org/meta-ti synced 2026-06-05 02:11:00 +00:00

linux-ti33x-psp 3.2: update to 3.2.21, add libertas fixes

Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
Signed-off-by: Denys Dmytriyenko <denys@ti.com>
This commit is contained in:
Koen Kooi
2012-06-20 12:42:22 +02:00
committed by Denys Dmytriyenko
parent 2257c7b47a
commit 189ce92b4c
419 changed files with 21742 additions and 357 deletions
+1 -1
View File
@@ -4,7 +4,7 @@ require conf/machine/include/soc-family.inc
require conf/machine/include/tune-cortexa8.inc
PREFERRED_PROVIDER_virtual/kernel = "linux-ti33x-psp"
# Increase this everytime you change something in the kernel
MACHINE_KERNEL_PR = "r12"
MACHINE_KERNEL_PR = "r13"
KERNEL_IMAGETYPE = "uImage"
@@ -0,0 +1,79 @@
From e29e69cb6dff635429cbda9a9548c3d0390689f9 Mon Sep 17 00:00:00 2001
From: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
Date: Fri, 10 Feb 2012 15:28:31 +0900
Subject: [PATCH 001/117] KVM: mmu_notifier: Flush TLBs before releasing
mmu_lock
(cherry picked from commit 565f3be2174611f364405bbea2d86e153c2e7e78
Other threads may process the same page in that small window and skip
TLB flush and then return before these functions do flush.
Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
virt/kvm/kvm_main.c | 19 ++++++++++---------
1 file changed, 10 insertions(+), 9 deletions(-)
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index e401c1b..9ffac2e 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -289,15 +289,15 @@ static void kvm_mmu_notifier_invalidate_page(struct mmu_notifier *mn,
*/
idx = srcu_read_lock(&kvm->srcu);
spin_lock(&kvm->mmu_lock);
+
kvm->mmu_notifier_seq++;
need_tlb_flush = kvm_unmap_hva(kvm, address) | kvm->tlbs_dirty;
- spin_unlock(&kvm->mmu_lock);
- srcu_read_unlock(&kvm->srcu, idx);
-
/* we've to flush the tlb before the pages can be freed */
if (need_tlb_flush)
kvm_flush_remote_tlbs(kvm);
+ spin_unlock(&kvm->mmu_lock);
+ srcu_read_unlock(&kvm->srcu, idx);
}
static void kvm_mmu_notifier_change_pte(struct mmu_notifier *mn,
@@ -335,12 +335,12 @@ static void kvm_mmu_notifier_invalidate_range_start(struct mmu_notifier *mn,
for (; start < end; start += PAGE_SIZE)
need_tlb_flush |= kvm_unmap_hva(kvm, start);
need_tlb_flush |= kvm->tlbs_dirty;
- spin_unlock(&kvm->mmu_lock);
- srcu_read_unlock(&kvm->srcu, idx);
-
/* we've to flush the tlb before the pages can be freed */
if (need_tlb_flush)
kvm_flush_remote_tlbs(kvm);
+
+ spin_unlock(&kvm->mmu_lock);
+ srcu_read_unlock(&kvm->srcu, idx);
}
static void kvm_mmu_notifier_invalidate_range_end(struct mmu_notifier *mn,
@@ -378,13 +378,14 @@ static int kvm_mmu_notifier_clear_flush_young(struct mmu_notifier *mn,
idx = srcu_read_lock(&kvm->srcu);
spin_lock(&kvm->mmu_lock);
- young = kvm_age_hva(kvm, address);
- spin_unlock(&kvm->mmu_lock);
- srcu_read_unlock(&kvm->srcu, idx);
+ young = kvm_age_hva(kvm, address);
if (young)
kvm_flush_remote_tlbs(kvm);
+ spin_unlock(&kvm->mmu_lock);
+ srcu_read_unlock(&kvm->srcu, idx);
+
return young;
}
--
1.7.9.5
@@ -0,0 +1,110 @@
From 54719e9d5196e2af1e358795de9face038502343 Mon Sep 17 00:00:00 2001
From: Avi Kivity <avi@redhat.com>
Date: Mon, 5 Mar 2012 14:23:29 +0200
Subject: [PATCH 002/117] KVM: Ensure all vcpus are consistent with in-kernel
irqchip settings
(cherry picked from commit 3e515705a1f46beb1c942bb8043c16f8ac7b1e9e)
If some vcpus are created before KVM_CREATE_IRQCHIP, then
irqchip_in_kernel() and vcpu->arch.apic will be inconsistent, leading
to potential NULL pointer dereferences.
Fix by:
- ensuring that no vcpus are installed when KVM_CREATE_IRQCHIP is called
- ensuring that a vcpu has an apic if it is installed after KVM_CREATE_IRQCHIP
This is somewhat long winded because vcpu->arch.apic is created without
kvm->lock held.
Based on earlier patch by Michael Ellerman.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
arch/ia64/kvm/kvm-ia64.c | 5 +++++
arch/x86/kvm/x86.c | 8 ++++++++
include/linux/kvm_host.h | 7 +++++++
virt/kvm/kvm_main.c | 4 ++++
4 files changed, 24 insertions(+)
diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c
index 43f4c92..7073185 100644
--- a/arch/ia64/kvm/kvm-ia64.c
+++ b/arch/ia64/kvm/kvm-ia64.c
@@ -1169,6 +1169,11 @@ out:
#define PALE_RESET_ENTRY 0x80000000ffffffb0UL
+bool kvm_vcpu_compatible(struct kvm_vcpu *vcpu)
+{
+ return irqchip_in_kernel(vcpu->kcm) == (vcpu->arch.apic != NULL);
+}
+
int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
{
struct kvm_vcpu *v;
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index e04cae1..4fc5323 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -3579,6 +3579,9 @@ long kvm_arch_vm_ioctl(struct file *filp,
r = -EEXIST;
if (kvm->arch.vpic)
goto create_irqchip_unlock;
+ r = -EINVAL;
+ if (atomic_read(&kvm->online_vcpus))
+ goto create_irqchip_unlock;
r = -ENOMEM;
vpic = kvm_create_pic(kvm);
if (vpic) {
@@ -6486,6 +6489,11 @@ void kvm_arch_check_processor_compat(void *rtn)
kvm_x86_ops->check_processor_compatibility(rtn);
}
+bool kvm_vcpu_compatible(struct kvm_vcpu *vcpu)
+{
+ return irqchip_in_kernel(vcpu->kvm) == (vcpu->arch.apic != NULL);
+}
+
int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
{
struct page *page;
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 35410ef..6136821 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -744,6 +744,13 @@ static inline bool kvm_vcpu_is_bsp(struct kvm_vcpu *vcpu)
{
return vcpu->kvm->bsp_vcpu_id == vcpu->vcpu_id;
}
+
+bool kvm_vcpu_compatible(struct kvm_vcpu *vcpu);
+
+#else
+
+static inline bool kvm_vcpu_compatible(struct kvm_vcpu *vcpu) { return true; }
+
#endif
#ifdef __KVM_HAVE_DEVICE_ASSIGNMENT
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 9ffac2e..ec747dc 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -1667,6 +1667,10 @@ static int kvm_vm_ioctl_create_vcpu(struct kvm *kvm, u32 id)
goto vcpu_destroy;
mutex_lock(&kvm->lock);
+ if (!kvm_vcpu_compatible(vcpu)) {
+ r = -EINVAL;
+ goto unlock_vcpu_destroy;
+ }
if (atomic_read(&kvm->online_vcpus) == KVM_MAX_VCPUS) {
r = -EINVAL;
goto unlock_vcpu_destroy;
--
1.7.9.5
@@ -0,0 +1,83 @@
From 2464830dde6595631a26a5178946f8d8d0ac974f Mon Sep 17 00:00:00 2001
From: Alex Williamson <alex.williamson@redhat.com>
Date: Tue, 17 Apr 2012 21:46:44 -0600
Subject: [PATCH 003/117] KVM: lock slots_lock around device assignment
(cherry picked from commit 21a1416a1c945c5aeaeaf791b63c64926018eb77)
As pointed out by Jason Baron, when assigning a device to a guest
we first set the iommu domain pointer, which enables mapping
and unmapping of memory slots to the iommu. This leaves a window
where this path is enabled, but we haven't synchronized the iommu
mappings to the existing memory slots. Thus a slot being removed
at that point could send us down unexpected code paths removing
non-existent pinnings and iommu mappings. Take the slots_lock
around creating the iommu domain and initial mappings as well as
around iommu teardown to avoid this race.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
virt/kvm/iommu.c | 23 +++++++++++++++--------
1 file changed, 15 insertions(+), 8 deletions(-)
diff --git a/virt/kvm/iommu.c b/virt/kvm/iommu.c
index fd817a2..533db33 100644
--- a/virt/kvm/iommu.c
+++ b/virt/kvm/iommu.c
@@ -239,9 +239,13 @@ int kvm_iommu_map_guest(struct kvm *kvm)
return -ENODEV;
}
+ mutex_lock(&kvm->slots_lock);
+
kvm->arch.iommu_domain = iommu_domain_alloc(&pci_bus_type);
- if (!kvm->arch.iommu_domain)
- return -ENOMEM;
+ if (!kvm->arch.iommu_domain) {
+ r = -ENOMEM;
+ goto out_unlock;
+ }
if (!allow_unsafe_assigned_interrupts &&
!iommu_domain_has_cap(kvm->arch.iommu_domain,
@@ -252,17 +256,16 @@ int kvm_iommu_map_guest(struct kvm *kvm)
" module option.\n", __func__);
iommu_domain_free(kvm->arch.iommu_domain);
kvm->arch.iommu_domain = NULL;
- return -EPERM;
+ r = -EPERM;
+ goto out_unlock;
}
r = kvm_iommu_map_memslots(kvm);
if (r)
- goto out_unmap;
-
- return 0;
+ kvm_iommu_unmap_memslots(kvm);
-out_unmap:
- kvm_iommu_unmap_memslots(kvm);
+out_unlock:
+ mutex_unlock(&kvm->slots_lock);
return r;
}
@@ -338,7 +341,11 @@ int kvm_iommu_unmap_guest(struct kvm *kvm)
if (!domain)
return 0;
+ mutex_lock(&kvm->slots_lock);
kvm_iommu_unmap_memslots(kvm);
+ kvm->arch.iommu_domain = NULL;
+ mutex_unlock(&kvm->slots_lock);
+
iommu_domain_free(domain);
return 0;
}
--
1.7.9.5
@@ -0,0 +1,36 @@
From c997d0a009e5eb7b372287c13fc9eaba901533e8 Mon Sep 17 00:00:00 2001
From: Nadav Har'El <nyh@math.technion.ac.il>
Date: Tue, 6 Mar 2012 16:39:22 +0200
Subject: [PATCH 004/117] KVM: nVMX: Fix erroneous exception bitmap check
(cherry picked from commit 9587190107d0c0cbaccbf7bf6b0245d29095a9ae)
The code which checks whether to inject a pagefault to L1 or L2 (in
nested VMX) was wrong, incorrect in how it checked the PF_VECTOR bit.
Thanks to Dan Carpenter for spotting this.
Signed-off-by: Nadav Har'El <nyh@il.ibm.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
arch/x86/kvm/vmx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 4ea7678..7ac5993 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -1677,7 +1677,7 @@ static int nested_pf_handled(struct kvm_vcpu *vcpu)
struct vmcs12 *vmcs12 = get_vmcs12(vcpu);
/* TODO: also check PFEC_MATCH/MASK, not just EB.PF. */
- if (!(vmcs12->exception_bitmap & PF_VECTOR))
+ if (!(vmcs12->exception_bitmap & (1u << PF_VECTOR)))
return 0;
nested_vmx_vmexit(vcpu);
--
1.7.9.5
@@ -0,0 +1,35 @@
From 6d02e81e40e77ff4e0d65ae89cf91a7402d3255f Mon Sep 17 00:00:00 2001
From: Marcelo Tosatti <mtosatti@redhat.com>
Date: Tue, 27 Mar 2012 19:47:26 -0300
Subject: [PATCH 005/117] KVM: VMX: vmx_set_cr0 expects kvm->srcu locked
(cherry picked from commit 7a4f5ad051e02139a9f1c0f7f4b1acb88915852b)
vmx_set_cr0 is called from vcpu run context, therefore it expects
kvm->srcu to be held (for setting up the real-mode TSS).
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
arch/x86/kvm/vmx.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 7ac5993..7315488 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -3915,7 +3915,9 @@ static int vmx_vcpu_reset(struct kvm_vcpu *vcpu)
vmcs_write16(VIRTUAL_PROCESSOR_ID, vmx->vpid);
vmx->vcpu.arch.cr0 = X86_CR0_NW | X86_CR0_CD | X86_CR0_ET;
+ vcpu->srcu_idx = srcu_read_lock(&vcpu->kvm->srcu);
vmx_set_cr0(&vmx->vcpu, kvm_read_cr0(vcpu)); /* enter rmode */
+ srcu_read_unlock(&vcpu->kvm->srcu, vcpu->srcu_idx);
vmx_set_cr4(&vmx->vcpu, 0);
vmx_set_efer(&vmx->vcpu, 0);
vmx_fpu_activate(&vmx->vcpu);
--
1.7.9.5
@@ -0,0 +1,65 @@
From 4ec77e205d0abcfd9d48332ac0a8d60322966562 Mon Sep 17 00:00:00 2001
From: Jens Freimann <jfrei@linux.vnet.ibm.com>
Date: Mon, 6 Feb 2012 10:59:03 +0100
Subject: [PATCH 006/117] KVM: s390: do store status after handling
STOP_ON_STOP bit
(cherry picked from commit 9e0d5473e2f0ba2d2fe9dab9408edef3060b710e)
In handle_stop() handle the stop bit before doing the store status as
described for "Stop and Store Status" in the Principles of Operation.
We have to give up the local_int.lock before calling kvm store status
since it calls gmap_fault() which might sleep. Since local_int.lock
only protects local_int.* and not guest memory we can give up the lock.
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
arch/s390/kvm/intercept.c | 20 ++++++++++++--------
1 file changed, 12 insertions(+), 8 deletions(-)
diff --git a/arch/s390/kvm/intercept.c b/arch/s390/kvm/intercept.c
index 0243454..a5f6eff 100644
--- a/arch/s390/kvm/intercept.c
+++ b/arch/s390/kvm/intercept.c
@@ -133,13 +133,6 @@ static int handle_stop(struct kvm_vcpu *vcpu)
vcpu->stat.exit_stop_request++;
spin_lock_bh(&vcpu->arch.local_int.lock);
- if (vcpu->arch.local_int.action_bits & ACTION_STORE_ON_STOP) {
- vcpu->arch.local_int.action_bits &= ~ACTION_STORE_ON_STOP;
- rc = kvm_s390_vcpu_store_status(vcpu,
- KVM_S390_STORE_STATUS_NOADDR);
- if (rc >= 0)
- rc = -EOPNOTSUPP;
- }
if (vcpu->arch.local_int.action_bits & ACTION_RELOADVCPU_ON_STOP) {
vcpu->arch.local_int.action_bits &= ~ACTION_RELOADVCPU_ON_STOP;
@@ -155,7 +148,18 @@ static int handle_stop(struct kvm_vcpu *vcpu)
rc = -EOPNOTSUPP;
}
- spin_unlock_bh(&vcpu->arch.local_int.lock);
+ if (vcpu->arch.local_int.action_bits & ACTION_STORE_ON_STOP) {
+ vcpu->arch.local_int.action_bits &= ~ACTION_STORE_ON_STOP;
+ /* store status must be called unlocked. Since local_int.lock
+ * only protects local_int.* and not guest memory we can give
+ * up the lock here */
+ spin_unlock_bh(&vcpu->arch.local_int.lock);
+ rc = kvm_s390_vcpu_store_status(vcpu,
+ KVM_S390_STORE_STATUS_NOADDR);
+ if (rc >= 0)
+ rc = -EOPNOTSUPP;
+ } else
+ spin_unlock_bh(&vcpu->arch.local_int.lock);
return rc;
}
--
1.7.9.5
@@ -0,0 +1,36 @@
From 12632a351defb18140a84df1720a363d94991973 Mon Sep 17 00:00:00 2001
From: Christian Borntraeger <borntraeger@de.ibm.com>
Date: Mon, 6 Feb 2012 10:59:02 +0100
Subject: [PATCH 007/117] KVM: s390: Sanitize fpc registers for KVM_SET_FPU
(cherry picked from commit 851755871c1f3184f4124c466e85881f17fa3226)
commit 7eef87dc99e419b1cc051e4417c37e4744d7b661 (KVM: s390: fix
register setting) added a load of the floating point control register
to the KVM_SET_FPU path. Lets make sure that the fpc is valid.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
arch/s390/kvm/kvm-s390.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index d1c44573..d3cb86c 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -418,7 +418,7 @@ int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
{
memcpy(&vcpu->arch.guest_fpregs.fprs, &fpu->fprs, sizeof(fpu->fprs));
- vcpu->arch.guest_fpregs.fpc = fpu->fpc;
+ vcpu->arch.guest_fpregs.fpc = fpu->fpc & FPC_VALID_MASK;
restore_fp_regs(&vcpu->arch.guest_fpregs);
return 0;
}
--
1.7.9.5
@@ -0,0 +1,61 @@
From ac72e8c98ddb0c511b506472d9bc5afcf720babc Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kent.overstreet@gmail.com>
Date: Wed, 8 Feb 2012 22:07:18 +0100
Subject: [PATCH 008/117] bio: don't overflow in bio_get_nr_vecs()
commit 5abebfdd02450fa1349daacf242e70b3736581e3 upstream.
There were two places bio_get_nr_vecs() could overflow:
First, it did a left shift to convert from sectors to bytes immediately
before dividing by PAGE_SIZE. If PAGE_SIZE ever was less than 512 a great
many things would break, so dividing by PAGE_SIZE >> 9 is safe and will
generate smaller code too.
The nastier overflow was in the DIV_ROUND_UP() (that's what the code was
effectively doing, anyways). If n + d overflowed, the whole thing would
return 0 which breaks things rather effectively.
bio_get_nr_vecs() doesn't claim to give an exact value anyways, so the
DIV_ROUND_UP() is silly; we could do a straight divide except if a
device's queue_max_sectors was less than PAGE_SIZE we'd return 0. So we
just add 1; this should always be safe - things will break badly if
bio_get_nr_vecs() returns > BIO_MAX_PAGES (bio_alloc() will suddenly start
failing) but it's queue_max_segments that must guard against this, if
queue_max_sectors is preventing this from happen things are going to
explode on architectures with different PAGE_SIZE.
Signed-off-by: Kent Overstreet <koverstreet@google.com>
Cc: Tejun Heo <tj@kernel.org>
Acked-by: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
fs/bio.c | 10 +++-------
1 file changed, 3 insertions(+), 7 deletions(-)
diff --git a/fs/bio.c b/fs/bio.c
index b1fe82c..b980ecd 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -505,13 +505,9 @@ EXPORT_SYMBOL(bio_clone);
int bio_get_nr_vecs(struct block_device *bdev)
{
struct request_queue *q = bdev_get_queue(bdev);
- int nr_pages;
-
- nr_pages = ((queue_max_sectors(q) << 9) + PAGE_SIZE - 1) >> PAGE_SHIFT;
- if (nr_pages > queue_max_segments(q))
- nr_pages = queue_max_segments(q);
-
- return nr_pages;
+ return min_t(unsigned,
+ queue_max_segments(q),
+ queue_max_sectors(q) / (PAGE_SIZE >> 9) + 1);
}
EXPORT_SYMBOL(bio_get_nr_vecs);
--
1.7.9.5
@@ -0,0 +1,49 @@
From a98c14f6d0a745c09fa0ebf22c2ce8913c211d9b Mon Sep 17 00:00:00 2001
From: Bernd Schubert <bernd.schubert@itwm.fraunhofer.de>
Date: Fri, 11 May 2012 16:36:44 +0200
Subject: [PATCH 009/117] bio allocation failure due to bio_get_nr_vecs()
commit f908ee9463b09ddd05e1c1a0111132212dc05fac upstream.
The number of bio_get_nr_vecs() is passed down via bio_alloc() to
bvec_alloc_bs(), which fails the bio allocation if
nr_iovecs > BIO_MAX_PAGES. For the underlying caller this causes an
unexpected bio allocation failure.
Limiting to queue_max_segments() is not sufficient, as max_segments
also might be very large.
bvec_alloc_bs(gfp_mask, nr_iovecs, ) => NULL when nr_iovecs > BIO_MAX_PAGES
bio_alloc_bioset(gfp_mask, nr_iovecs, ...)
bio_alloc(GFP_NOIO, nvecs)
xfs_alloc_ioend_bio()
Signed-off-by: Bernd Schubert <bernd.schubert@itwm.fraunhofer.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
fs/bio.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/fs/bio.c b/fs/bio.c
index b980ecd..4fc4dbb 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -505,9 +505,14 @@ EXPORT_SYMBOL(bio_clone);
int bio_get_nr_vecs(struct block_device *bdev)
{
struct request_queue *q = bdev_get_queue(bdev);
- return min_t(unsigned,
+ int nr_pages;
+
+ nr_pages = min_t(unsigned,
queue_max_segments(q),
queue_max_sectors(q) / (PAGE_SIZE >> 9) + 1);
+
+ return min_t(unsigned, nr_pages, BIO_MAX_PAGES);
+
}
EXPORT_SYMBOL(bio_get_nr_vecs);
--
1.7.9.5
@@ -0,0 +1,98 @@
From 6a6f5fba154e1400185844d74b953fba440fda63 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Tue, 15 May 2012 08:22:04 +0200
Subject: [PATCH 010/117] block: fix buffer overflow when printing partition
UUIDs
commit 05c69d298c96703741cac9a5cbbf6c53bd55a6e2 upstream.
6d1d8050b4bc8 "block, partition: add partition_meta_info to hd_struct"
added part_unpack_uuid() which assumes that the passed in buffer has
enough space for sprintfing "%pU" - 37 characters including '\0'.
Unfortunately, b5af921ec0233 "init: add support for root devices
specified by partition UUID" supplied 33 bytes buffer to the function
leading to the following panic with stackprotector enabled.
Kernel panic - not syncing: stack-protector: Kernel stack corrupted in: ffffffff81b14c7e
[<ffffffff815e226b>] panic+0xba/0x1c6
[<ffffffff81b14c7e>] ? printk_all_partitions+0x259/0x26xb
[<ffffffff810566bb>] __stack_chk_fail+0x1b/0x20
[<ffffffff81b15c7e>] printk_all_paritions+0x259/0x26xb
[<ffffffff81aedfe0>] mount_block_root+0x1bc/0x27f
[<ffffffff81aee0fa>] mount_root+0x57/0x5b
[<ffffffff81aee23b>] prepare_namespace+0x13d/0x176
[<ffffffff8107eec0>] ? release_tgcred.isra.4+0x330/0x30
[<ffffffff81aedd60>] kernel_init+0x155/0x15a
[<ffffffff81087b97>] ? schedule_tail+0x27/0xb0
[<ffffffff815f4d24>] kernel_thread_helper+0x5/0x10
[<ffffffff81aedc0b>] ? start_kernel+0x3c5/0x3c5
[<ffffffff815f4d20>] ? gs_change+0x13/0x13
Increase the buffer size, remove the dangerous part_unpack_uuid() and
use snprintf() directly from printk_all_partitions().
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Szymon Gruszczynski <sz.gruszczynski@googlemail.com>
Cc: Will Drewry <wad@chromium.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
block/genhd.c | 10 ++++++----
include/linux/genhd.h | 6 ------
2 files changed, 6 insertions(+), 10 deletions(-)
diff --git a/block/genhd.c b/block/genhd.c
index 997afd6..4927476 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -744,7 +744,7 @@ void __init printk_all_partitions(void)
struct hd_struct *part;
char name_buf[BDEVNAME_SIZE];
char devt_buf[BDEVT_SIZE];
- u8 uuid[PARTITION_META_INFO_UUIDLTH * 2 + 1];
+ char uuid_buf[PARTITION_META_INFO_UUIDLTH * 2 + 5];
/*
* Don't show empty devices or things that have been
@@ -763,14 +763,16 @@ void __init printk_all_partitions(void)
while ((part = disk_part_iter_next(&piter))) {
bool is_part0 = part == &disk->part0;
- uuid[0] = 0;
+ uuid_buf[0] = '\0';
if (part->info)
- part_unpack_uuid(part->info->uuid, uuid);
+ snprintf(uuid_buf, sizeof(uuid_buf), "%pU",
+ part->info->uuid);
printk("%s%s %10llu %s %s", is_part0 ? "" : " ",
bdevt_str(part_devt(part), devt_buf),
(unsigned long long)part->nr_sects >> 1,
- disk_name(disk, part->partno, name_buf), uuid);
+ disk_name(disk, part->partno, name_buf),
+ uuid_buf);
if (is_part0) {
if (disk->driverfs_dev != NULL &&
disk->driverfs_dev->driver != NULL)
diff --git a/include/linux/genhd.h b/include/linux/genhd.h
index c6f7f6a..4eec461 100644
--- a/include/linux/genhd.h
+++ b/include/linux/genhd.h
@@ -222,12 +222,6 @@ static inline void part_pack_uuid(const u8 *uuid_str, u8 *to)
}
}
-static inline char *part_unpack_uuid(const u8 *uuid, char *out)
-{
- sprintf(out, "%pU", uuid);
- return out;
-}
-
static inline int disk_max_parts(struct gendisk *disk)
{
if (disk->flags & GENHD_FL_EXT_DEVT)
--
1.7.9.5
@@ -0,0 +1,43 @@
From 882770bdde14aed9bf896980f51fe2fc8a55623f Mon Sep 17 00:00:00 2001
From: James Bottomley <JBottomley@Parallels.com>
Date: Tue, 15 May 2012 11:04:19 +0100
Subject: [PATCH 011/117] fix PA1.1 oops on boot
commit 5e185581d7c46ddd33cd9c01106d1fc86efb9376 upstream.
All PA1.1 systems have been oopsing on boot since
commit f311847c2fcebd81912e2f0caf8a461dec28db41
Author: James Bottomley <James.Bottomley@HansenPartnership.com>
Date: Wed Dec 22 10:22:11 2010 -0600
parisc: flush pages through tmpalias space
because a PA2.0 instruction was accidentally introduced into the PA1.1 TLB
insertion interruption path when it was consolidated with the do_alias macro.
Fix the do_alias macro only to use PA2.0 instructions if compiled for 64 bit.
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
arch/parisc/kernel/entry.S | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 6f05944..5350342 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -581,7 +581,11 @@
*/
cmpiclr,= 0x01,\tmp,%r0
ldi (_PAGE_DIRTY|_PAGE_READ|_PAGE_WRITE),\prot
+#ifdef CONFIG_64BIT
depd,z \prot,8,7,\prot
+#else
+ depw,z \prot,8,7,\prot
+#endif
/*
* OK, it is in the temp alias region, check whether "from" or "to".
* Check "subtle" note in pacache.S re: r23/r26.
--
1.7.9.5
@@ -0,0 +1,91 @@
From 95093fb411e522ec7a6c33d12863107ba841fe72 Mon Sep 17 00:00:00 2001
From: John David Anglin <dave.anglin@bell.net>
Date: Wed, 16 May 2012 10:14:52 +0100
Subject: [PATCH 012/117] fix crash in flush_icache_page_asm on PA1.1
commit 207f583d7179f707f402c36a7bda5ca1fd03ad5b upstream.
As pointed out by serveral people, PA1.1 only has a type 26 instruction
meaning that the space register must be explicitly encoded. Not giving an
explicit space means that the compiler uses the type 24 version which is PA2.0
only resulting in an illegal instruction crash.
This regression was caused by
commit f311847c2fcebd81912e2f0caf8a461dec28db41
Author: James Bottomley <James.Bottomley@HansenPartnership.com>
Date: Wed Dec 22 10:22:11 2010 -0600
parisc: flush pages through tmpalias space
Reported-by: Helge Deller <deller@gmx.de>
Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
arch/parisc/kernel/pacache.S | 38 ++++++++++++++++++++------------------
1 file changed, 20 insertions(+), 18 deletions(-)
diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S
index 93ff3d9..5d7218a 100644
--- a/arch/parisc/kernel/pacache.S
+++ b/arch/parisc/kernel/pacache.S
@@ -692,7 +692,7 @@ ENTRY(flush_icache_page_asm)
/* Purge any old translation */
- pitlb (%sr0,%r28)
+ pitlb (%sr4,%r28)
ldil L%icache_stride, %r1
ldw R%icache_stride(%r1), %r1
@@ -706,27 +706,29 @@ ENTRY(flush_icache_page_asm)
sub %r25, %r1, %r25
-1: fic,m %r1(%r28)
- fic,m %r1(%r28)
- fic,m %r1(%r28)
- fic,m %r1(%r28)
- fic,m %r1(%r28)
- fic,m %r1(%r28)
- fic,m %r1(%r28)
- fic,m %r1(%r28)
- fic,m %r1(%r28)
- fic,m %r1(%r28)
- fic,m %r1(%r28)
- fic,m %r1(%r28)
- fic,m %r1(%r28)
- fic,m %r1(%r28)
- fic,m %r1(%r28)
+ /* fic only has the type 26 form on PA1.1, requiring an
+ * explicit space specification, so use %sr4 */
+1: fic,m %r1(%sr4,%r28)
+ fic,m %r1(%sr4,%r28)
+ fic,m %r1(%sr4,%r28)
+ fic,m %r1(%sr4,%r28)
+ fic,m %r1(%sr4,%r28)
+ fic,m %r1(%sr4,%r28)
+ fic,m %r1(%sr4,%r28)
+ fic,m %r1(%sr4,%r28)
+ fic,m %r1(%sr4,%r28)
+ fic,m %r1(%sr4,%r28)
+ fic,m %r1(%sr4,%r28)
+ fic,m %r1(%sr4,%r28)
+ fic,m %r1(%sr4,%r28)
+ fic,m %r1(%sr4,%r28)
+ fic,m %r1(%sr4,%r28)
cmpb,COND(<<) %r28, %r25,1b
- fic,m %r1(%r28)
+ fic,m %r1(%sr4,%r28)
sync
bv %r0(%r2)
- pitlb (%sr0,%r25)
+ pitlb (%sr4,%r25)
.exit
.procend
--
1.7.9.5
@@ -0,0 +1,39 @@
From ae4fc9e89e9e7fb510ddbff1c3ca6d41477f45e1 Mon Sep 17 00:00:00 2001
From: James Bottomley <JBottomley@Parallels.com>
Date: Wed, 16 May 2012 11:10:27 +0100
Subject: [PATCH 013/117] fix panic on prefetch(NULL) on PA7300LC
commit b3cb8674811d1851bbf1486a73d62b90c119b994 upstream.
Due to an errata, the PA7300LC generates a TLB miss interruption even on the
prefetch instruction. This means that prefetch(NULL), which is supposed to be
a nop on linux actually generates a NULL deref fault. Fix this by testing the
address of prefetch against NULL before doing the prefetch.
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
arch/parisc/include/asm/prefetch.h | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/arch/parisc/include/asm/prefetch.h b/arch/parisc/include/asm/prefetch.h
index c5edc60..1ee7c82 100644
--- a/arch/parisc/include/asm/prefetch.h
+++ b/arch/parisc/include/asm/prefetch.h
@@ -21,7 +21,12 @@
#define ARCH_HAS_PREFETCH
static inline void prefetch(const void *addr)
{
- __asm__("ldw 0(%0), %%r0" : : "r" (addr));
+ __asm__(
+#ifndef CONFIG_PA20
+ /* Need to avoid prefetch of NULL on PA7300LC */
+ " extrw,u,= %0,31,32,%%r0\n"
+#endif
+ " ldw 0(%0), %%r0" : : "r" (addr));
}
/* LDD is a PA2.0 addition. */
--
1.7.9.5
@@ -0,0 +1,31 @@
From 083a3c3d326ad085b05c8606f4ea8594ca6467b8 Mon Sep 17 00:00:00 2001
From: Chris Metcalf <cmetcalf@tilera.com>
Date: Tue, 27 Mar 2012 13:47:57 -0400
Subject: [PATCH 014/117] arch/tile/Kconfig: remove pointless "!M386" test.
commit 8d6951439ef524683057251f1231df232046b6b6 upstream.
Looks like a cut and paste bug from the x86 version.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
arch/tile/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
index 70a0de4..7c9d2d4 100644
--- a/arch/tile/Kconfig
+++ b/arch/tile/Kconfig
@@ -12,7 +12,7 @@ config TILE
select GENERIC_PENDING_IRQ if SMP
select GENERIC_IRQ_SHOW
select SYS_HYPERVISOR
- select ARCH_HAVE_NMI_SAFE_CMPXCHG if !M386
+ select ARCH_HAVE_NMI_SAFE_CMPXCHG
# FIXME: investigate whether we need/want these options.
# select HAVE_IOREMAP_PROT
--
1.7.9.5
@@ -0,0 +1,39 @@
From 7f297eaca9b90a9be05ebe02c90efca3692136db Mon Sep 17 00:00:00 2001
From: Chris Metcalf <cmetcalf@tilera.com>
Date: Fri, 18 May 2012 13:33:24 -0400
Subject: [PATCH 015/117] tilegx: enable SYSCALL_WRAPPERS support
commit e6d9668e119af44ae5bcd5f1197174531458afe3 upstream.
Some discussion with the glibc mailing lists revealed that this was
necessary for 64-bit platforms with MIPS-like sign-extension rules
for 32-bit values. The original symptom was that passing (uid_t)-1 to
setreuid() was failing in programs linked -pthread because of the "setxid"
mechanism for passing setxid-type function arguments to the syscall code.
SYSCALL_WRAPPERS handles ensuring that all syscall arguments end up with
proper sign-extension and is thus the appropriate fix for this problem.
On other platforms (s390, powerpc, sparc64, and mips) this was fixed
in 2.6.28.6. The general issue is tracked as CVE-2009-0029.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
arch/tile/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
index 7c9d2d4..6cb8319 100644
--- a/arch/tile/Kconfig
+++ b/arch/tile/Kconfig
@@ -11,6 +11,7 @@ config TILE
select GENERIC_IRQ_PROBE
select GENERIC_PENDING_IRQ if SMP
select GENERIC_IRQ_SHOW
+ select HAVE_SYSCALL_WRAPPERS if TILEGX
select SYS_HYPERVISOR
select ARCH_HAVE_NMI_SAFE_CMPXCHG
--
1.7.9.5
@@ -0,0 +1,33 @@
From 183929ad3fad7588523ae70fa91912196d4697db Mon Sep 17 00:00:00 2001
From: Maxim Levitsky <maximlevitsky@gmail.com>
Date: Sat, 17 Mar 2012 20:16:53 +0200
Subject: [PATCH 016/117] mtd: sm_ftl: fix typo in major number.
commit 452380efbd72d8d41f53ea64c8a6ea1fedc4394d upstream.
major == 0 allocates dynamic major, not major == -1
Signed-off-by: Maxim Levitsky <maximlevitsky@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/mtd/sm_ftl.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/mtd/sm_ftl.c b/drivers/mtd/sm_ftl.c
index fddb714..a9ff89ff 100644
--- a/drivers/mtd/sm_ftl.c
+++ b/drivers/mtd/sm_ftl.c
@@ -1256,7 +1256,7 @@ static void sm_remove_dev(struct mtd_blktrans_dev *dev)
static struct mtd_blktrans_ops sm_ftl_ops = {
.name = "smblk",
- .major = -1,
+ .major = 0,
.part_bits = SM_FTL_PARTN_BITS,
.blksize = SM_SECTOR_SIZE,
.getgeo = sm_getgeo,
--
1.7.9.5
@@ -0,0 +1,77 @@
From 3b1c9abc52f8145721d64abf54bf65139554f2be Mon Sep 17 00:00:00 2001
From: "Stephen M. Cameron" <scameron@beardog.cce.hp.com>
Date: Thu, 19 Jan 2012 14:01:04 -0600
Subject: [PATCH 017/117] hpsa: Fix problem with MSA2xxx devices
commit 9bc3711cbb67ac620bf09b4a147cbab45b2c36c0 upstream.
Upgraded firmware on Smart Array P7xx (and some others) made them show up as
SCSI revision 5 devices and this caused the driver to fail to map MSA2xxx
logical drives to the correct bus/target/lun. A symptom of this would be that
the target ID of the logical drives as presented by the external storage array
is ignored, and all such logical drives are assigned to target zero,
differentiated only by LUN. Some multipath software reportedly does not deal
well with this behavior, failing to recognize different paths to the same
device as such.
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: Scott Teel <scott.teel@hp.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/scsi/hpsa.c | 34 +++++++++++++++-------------------
1 file changed, 15 insertions(+), 19 deletions(-)
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index 865d452..dc9dea3 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -1674,30 +1674,26 @@ static void figure_bus_target_lun(struct ctlr_info *h,
if (is_logical_dev_addr_mode(lunaddrbytes)) {
/* logical device */
- if (unlikely(is_scsi_rev_5(h))) {
- /* p1210m, logical drives lun assignments
- * match SCSI REPORT LUNS data.
+ lunid = le32_to_cpu(*((__le32 *) lunaddrbytes));
+ if (is_msa2xxx(h, device)) {
+ /* msa2xxx way, put logicals on bus 1
+ * and match target/lun numbers box
+ * reports.
*/
- lunid = le32_to_cpu(*((__le32 *) lunaddrbytes));
- *bus = 0;
- *target = 0;
- *lun = (lunid & 0x3fff) + 1;
+ *bus = 1;
+ *target = (lunid >> 16) & 0x3fff;
+ *lun = lunid & 0x00ff;
} else {
- /* not p1210m... */
- lunid = le32_to_cpu(*((__le32 *) lunaddrbytes));
- if (is_msa2xxx(h, device)) {
- /* msa2xxx way, put logicals on bus 1
- * and match target/lun numbers box
- * reports.
- */
- *bus = 1;
- *target = (lunid >> 16) & 0x3fff;
- *lun = lunid & 0x00ff;
+ if (likely(is_scsi_rev_5(h))) {
+ /* All current smart arrays (circa 2011) */
+ *bus = 0;
+ *target = 0;
+ *lun = (lunid & 0x3fff) + 1;
} else {
- /* Traditional smart array way. */
+ /* Traditional old smart array way. */
*bus = 0;
- *lun = 0;
*target = lunid & 0x3fff;
+ *lun = 0;
}
}
} else {
--
1.7.9.5
@@ -0,0 +1,34 @@
From d5263c321d2e9dcacc4eed438d3dad60c13f95ba Mon Sep 17 00:00:00 2001
From: Eric Paris <eparis@redhat.com>
Date: Wed, 4 Apr 2012 13:47:11 -0400
Subject: [PATCH 018/117] SELinux: if sel_make_bools errors don't leave
inconsistent state
commit 154c50ca4eb9ae472f50b6a481213e21ead4457d upstream.
We reset the bool names and values array to NULL, but do not reset the
number of entries in these arrays to 0. If we error out and then get back
into this function we will walk these NULL pointers based on the belief
that they are non-zero length.
Signed-off-by: Eric Paris <eparis@redhat.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
security/selinux/selinuxfs.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c
index f466587..b4f802d 100644
--- a/security/selinux/selinuxfs.c
+++ b/security/selinux/selinuxfs.c
@@ -1238,6 +1238,7 @@ static int sel_make_bools(void)
kfree(bool_pending_names[i]);
kfree(bool_pending_names);
kfree(bool_pending_values);
+ bool_num = 0;
bool_pending_names = NULL;
bool_pending_values = NULL;
--
1.7.9.5
@@ -0,0 +1,86 @@
From d9029a9d61ea9f9f8b153d7967365d66229b3874 Mon Sep 17 00:00:00 2001
From: "Luis R. Rodriguez" <mcgrof@frijolero.org>
Date: Fri, 23 Mar 2012 07:23:31 -0700
Subject: [PATCH 019/117] cfg80211: warn if db.txt is empty with
CONFIG_CFG80211_INTERNAL_REGDB
commit 80007efeff0568375b08faf93c7aad65602cb97e upstream.
It has happened twice now where elaborate troubleshooting has
undergone on systems where CONFIG_CFG80211_INTERNAL_REGDB [0]
has been set but yet net/wireless/db.txt was not updated.
Despite the documentation on this it seems system integrators could
use some more help with this, so throw out a kernel warning at boot time
when their database is empty.
This does mean that the error-prone system integrator won't likely
realize the issue until they boot the machine but -- it does not seem
to make sense to enable a build bug breaking random build testing.
[0] http://wireless.kernel.org/en/developers/Regulatory/CRDA#CONFIG_CFG80211_INTERNAL_REGDB
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Youngsin Lee <youngsin@qualcomm.com>
Cc: Raja Mani <rmani@qca.qualcomm.com>
Cc: Senthil Kumar Balasubramanian <senthilb@qca.qualcomm.com>
Cc: Vipin Mehta <vipimeht@qca.qualcomm.com>
Cc: yahuan@qca.qualcomm.com
Cc: jjan@qca.qualcomm.com
Cc: vthiagar@qca.qualcomm.com
Cc: henrykim@qualcomm.com
Cc: jouni@qca.qualcomm.com
Cc: athiruve@qca.qualcomm.com
Cc: cjkim@qualcomm.com
Cc: philipk@qca.qualcomm.com
Cc: sunnykim@qualcomm.com
Cc: sskwak@qualcomm.com
Cc: kkim@qualcomm.com
Cc: mattbyun@qualcomm.com
Cc: ryanlee@qualcomm.com
Cc: simbap@qualcomm.com
Cc: krislee@qualcomm.com
Cc: conner@qualcomm.com
Cc: hojinkim@qualcomm.com
Cc: honglee@qualcomm.com
Cc: johnwkim@qualcomm.com
Cc: jinyong@qca.qualcomm.com
Signed-off-by: Luis R. Rodriguez <mcgrof@frijolero.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
net/wireless/reg.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 3302c56..c1c99dd 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -379,7 +379,15 @@ static void reg_regdb_query(const char *alpha2)
schedule_work(&reg_regdb_work);
}
+
+/* Feel free to add any other sanity checks here */
+static void reg_regdb_size_check(void)
+{
+ /* We should ideally BUILD_BUG_ON() but then random builds would fail */
+ WARN_ONCE(!reg_regdb_size, "db.txt is empty, you should update it...");
+}
#else
+static inline void reg_regdb_size_check(void) {}
static inline void reg_regdb_query(const char *alpha2) {}
#endif /* CONFIG_CFG80211_INTERNAL_REGDB */
@@ -2236,6 +2244,8 @@ int __init regulatory_init(void)
spin_lock_init(&reg_requests_lock);
spin_lock_init(&reg_pending_beacons_lock);
+ reg_regdb_size_check();
+
cfg80211_regdomain = cfg80211_world_regdom;
user_alpha2[0] = '9';
--
1.7.9.5
@@ -0,0 +1,60 @@
From b12bc1d8337657ea79d90aecba397eaee36d10f6 Mon Sep 17 00:00:00 2001
From: "nagalakshmi.nandigama@lsi.com" <nagalakshmi.nandigama@lsi.com>
Date: Tue, 20 Mar 2012 12:10:01 +0530
Subject: [PATCH 020/117] mpt2sas: Fix for panic happening because of improper
memory allocation
commit e42fafc25fa86c61824e8d4c5e7582316415d24f upstream.
The ioc->pfacts member in the IOC structure is getting set to zero
following a call to _base_get_ioc_facts due to the memset in that routine.
So if the ioc->pfacts was read after a host reset, there would be a NULL
pointer dereference. The routine _base_get_ioc_facts is called from context
of host reset. The problem in _base_get_ioc_facts is the size of
Mpi2IOCFactsReply is 64, whereas the sizeof "struct mpt2sas_facts" is 60,
so there is a four byte overflow resulting from the memset.
Also, there is memset in _base_get_port_facts using the incorrect structure,
it should be "struct mpt2sas_port_facts" instead of Mpi2PortFactsReply.
Signed-off-by: Nagalakshmi Nandigama <nagalakshmi.nandigama@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/scsi/mpt2sas/mpt2sas_base.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.c b/drivers/scsi/mpt2sas/mpt2sas_base.c
index b1ddfef..ac336e1 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_base.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_base.c
@@ -3274,7 +3274,7 @@ _base_get_port_facts(struct MPT2SAS_ADAPTER *ioc, int port, int sleep_flag)
}
pfacts = &ioc->pfacts[port];
- memset(pfacts, 0, sizeof(Mpi2PortFactsReply_t));
+ memset(pfacts, 0, sizeof(struct mpt2sas_port_facts));
pfacts->PortNumber = mpi_reply.PortNumber;
pfacts->VP_ID = mpi_reply.VP_ID;
pfacts->VF_ID = mpi_reply.VF_ID;
@@ -3316,7 +3316,7 @@ _base_get_ioc_facts(struct MPT2SAS_ADAPTER *ioc, int sleep_flag)
}
facts = &ioc->facts;
- memset(facts, 0, sizeof(Mpi2IOCFactsReply_t));
+ memset(facts, 0, sizeof(struct mpt2sas_facts));
facts->MsgVersion = le16_to_cpu(mpi_reply.MsgVersion);
facts->HeaderVersion = le16_to_cpu(mpi_reply.HeaderVersion);
facts->VP_ID = mpi_reply.VP_ID;
@@ -4193,7 +4193,7 @@ mpt2sas_base_attach(struct MPT2SAS_ADAPTER *ioc)
goto out_free_resources;
ioc->pfacts = kcalloc(ioc->facts.NumberOfPorts,
- sizeof(Mpi2PortFactsReply_t), GFP_KERNEL);
+ sizeof(struct mpt2sas_port_facts), GFP_KERNEL);
if (!ioc->pfacts) {
r = -ENOMEM;
goto out_free_resources;
--
1.7.9.5
@@ -0,0 +1,87 @@
From cb510e3381f2dda5ad0cdf3519e6eee50ee2081e Mon Sep 17 00:00:00 2001
From: Tilman Schmidt <tilman@imap.cc>
Date: Wed, 25 Apr 2012 13:02:19 +0000
Subject: [PATCH 021/117] isdn/gigaset: ratelimit CAPI message dumps
commit 8e618aad5348b6e6c5a90e8d97ea643197963b20 upstream.
Introduce a global ratelimit for CAPI message dumps to protect
against possible log flood.
Drop the ratelimit for ignored messages which is now covered by the
global one.
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/isdn/gigaset/capi.c | 22 +++++++++-------------
1 file changed, 9 insertions(+), 13 deletions(-)
diff --git a/drivers/isdn/gigaset/capi.c b/drivers/isdn/gigaset/capi.c
index 6d5ceee..5b80ef7 100644
--- a/drivers/isdn/gigaset/capi.c
+++ b/drivers/isdn/gigaset/capi.c
@@ -14,6 +14,7 @@
#include "gigaset.h"
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
+#include <linux/ratelimit.h>
#include <linux/isdn/capilli.h>
#include <linux/isdn/capicmd.h>
#include <linux/isdn/capiutil.h>
@@ -223,10 +224,14 @@ get_appl(struct gigaset_capi_ctr *iif, u16 appl)
static inline void dump_cmsg(enum debuglevel level, const char *tag, _cmsg *p)
{
#ifdef CONFIG_GIGASET_DEBUG
+ /* dump at most 20 messages in 20 secs */
+ static DEFINE_RATELIMIT_STATE(msg_dump_ratelimit, 20 * HZ, 20);
_cdebbuf *cdb;
if (!(gigaset_debuglevel & level))
return;
+ if (!___ratelimit(&msg_dump_ratelimit, tag))
+ return;
cdb = capi_cmsg2str(p);
if (cdb) {
@@ -2059,12 +2064,6 @@ static void do_reset_b3_req(struct gigaset_capi_ctr *iif,
}
/*
- * dump unsupported/ignored messages at most twice per minute,
- * some apps send those very frequently
- */
-static unsigned long ignored_msg_dump_time;
-
-/*
* unsupported CAPI message handler
*/
static void do_unsupported(struct gigaset_capi_ctr *iif,
@@ -2073,8 +2072,7 @@ static void do_unsupported(struct gigaset_capi_ctr *iif,
{
/* decode message */
capi_message2cmsg(&iif->acmsg, skb->data);
- if (printk_timed_ratelimit(&ignored_msg_dump_time, 30 * 1000))
- dump_cmsg(DEBUG_CMD, __func__, &iif->acmsg);
+ dump_cmsg(DEBUG_CMD, __func__, &iif->acmsg);
send_conf(iif, ap, skb, CapiMessageNotSupportedInCurrentState);
}
@@ -2085,11 +2083,9 @@ static void do_nothing(struct gigaset_capi_ctr *iif,
struct gigaset_capi_appl *ap,
struct sk_buff *skb)
{
- if (printk_timed_ratelimit(&ignored_msg_dump_time, 30 * 1000)) {
- /* decode message */
- capi_message2cmsg(&iif->acmsg, skb->data);
- dump_cmsg(DEBUG_CMD, __func__, &iif->acmsg);
- }
+ /* decode message */
+ capi_message2cmsg(&iif->acmsg, skb->data);
+ dump_cmsg(DEBUG_CMD, __func__, &iif->acmsg);
dev_kfree_skb_any(skb);
}
--
1.7.9.5
@@ -0,0 +1,46 @@
From 49aed427d03f5bc84f690900a4a13c52b4c0916c Mon Sep 17 00:00:00 2001
From: Tilman Schmidt <tilman@imap.cc>
Date: Wed, 25 Apr 2012 13:02:20 +0000
Subject: [PATCH 022/117] isdn/gigaset: fix CAPI disconnect B3 handling
commit 62a1cfe052346b96a552b6a9178d412c709711bb upstream.
If DISCONNECT_B3_IND was synthesized because of a DISCONNECT_REQ
with existing logical connections, the connection state wasn't
updated accordingly. Also the emitted DISCONNECT_B3_IND message
wasn't included in the debug log as requested.
This patch fixes both of these issues.
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/isdn/gigaset/capi.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/isdn/gigaset/capi.c b/drivers/isdn/gigaset/capi.c
index 5b80ef7..fd17bb3 100644
--- a/drivers/isdn/gigaset/capi.c
+++ b/drivers/isdn/gigaset/capi.c
@@ -1887,6 +1887,9 @@ static void do_disconnect_req(struct gigaset_capi_ctr *iif,
/* check for active logical connection */
if (bcs->apconnstate >= APCONN_ACTIVE) {
+ /* clear it */
+ bcs->apconnstate = APCONN_SETUP;
+
/*
* emit DISCONNECT_B3_IND with cause 0x3301
* use separate cmsg structure, as the content of iif->acmsg
@@ -1911,6 +1914,7 @@ static void do_disconnect_req(struct gigaset_capi_ctr *iif,
}
capi_cmsg2message(b3cmsg,
__skb_put(b3skb, CAPI_DISCONNECT_B3_IND_BASELEN));
+ dump_cmsg(DEBUG_CMD, __func__, b3cmsg);
kfree(b3cmsg);
capi_ctr_handle_message(&iif->ctr, ap->id, b3skb);
}
--
1.7.9.5
@@ -0,0 +1,47 @@
From acee45e91a831a741676284dc84513b074705805 Mon Sep 17 00:00:00 2001
From: Tilman Schmidt <tilman@imap.cc>
Date: Wed, 25 Apr 2012 13:02:20 +0000
Subject: [PATCH 023/117] isdn/gigaset: improve error handling querying
firmware version
commit e055d03dc088a990fe5ea24a2d64033a168da23c upstream.
An out-of-place "OK" response to the "AT+GMR" (get firmware version)
command turns out to be, more often than not, a delayed response to
a previous command rather than an actual error, so continue waiting
for the version number in that case.
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
[bwh: Backported to 3.2: adjust indentation]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/isdn/gigaset/ev-layer.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/isdn/gigaset/ev-layer.c b/drivers/isdn/gigaset/ev-layer.c
index 6d12623..e95fac0 100644
--- a/drivers/isdn/gigaset/ev-layer.c
+++ b/drivers/isdn/gigaset/ev-layer.c
@@ -190,6 +190,7 @@ struct reply_t gigaset_tab_nocid[] =
ACT_INIT} },
{RSP_OK, 121, 121, -1, 0, 0, {ACT_GOTVER,
ACT_INIT} },
+{RSP_NONE, 121, 121, -1, 120, 0, {ACT_GETSTRING} },
/* leave dle mode */
{RSP_INIT, 0, 0, SEQ_DLE0, 201, 5, {0}, "^SDLE=0\r"},
@@ -1314,8 +1315,9 @@ static void do_action(int action, struct cardstate *cs,
s = ev->ptr;
if (!strcmp(s, "OK")) {
+ /* OK without version string: assume old response */
*p_genresp = 1;
- *p_resp_code = RSP_ERROR;
+ *p_resp_code = RSP_NONE;
break;
}
--
1.7.9.5
@@ -0,0 +1,60 @@
From ab5b15d0550f35ed49bb445fe04092d8b6fac542 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Fri, 11 May 2012 10:56:56 +0100
Subject: [PATCH 024/117] KEYS: Use the compat keyctl() syscall wrapper on
Sparc64 for Sparc32 compat
commit 45de6767dc51358a188f75dc4ad9dfddb7fb9480 upstream.
Use the 32-bit compat keyctl() syscall wrapper on Sparc64 for Sparc32 binary
compatibility.
Without this, keyctl(KEYCTL_INSTANTIATE_IOV) is liable to malfunction as it
uses an iovec array read from userspace - though the kernel should survive this
as it checks pointers and sizes anyway.
I think all the other keyctl() function should just work, provided (a) the top
32-bits of each 64-bit argument register are cleared prior to invoking the
syscall routine, and the 32-bit address space is right at the 0-end of the
64-bit address space. Most of the arguments are 32-bit anyway, and so for
those clearing is not required.
Signed-off-by: David Howells <dhowells@redhat.com
cc: "David S. Miller" <davem@davemloft.net>
cc: sparclinux@vger.kernel.org
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
arch/sparc/Kconfig | 3 +++
arch/sparc/kernel/systbls_64.S | 2 +-
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index f92602e..f210d51 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -583,6 +583,9 @@ config SYSVIPC_COMPAT
depends on COMPAT && SYSVIPC
default y
+config KEYS_COMPAT
+ def_bool y if COMPAT && KEYS
+
endmenu
source "net/Kconfig"
diff --git a/arch/sparc/kernel/systbls_64.S b/arch/sparc/kernel/systbls_64.S
index db86b1a..3a58e0d 100644
--- a/arch/sparc/kernel/systbls_64.S
+++ b/arch/sparc/kernel/systbls_64.S
@@ -74,7 +74,7 @@ sys_call_table32:
.word sys_timer_delete, compat_sys_timer_create, sys_ni_syscall, compat_sys_io_setup, sys_io_destroy
/*270*/ .word sys32_io_submit, sys_io_cancel, compat_sys_io_getevents, sys32_mq_open, sys_mq_unlink
.word compat_sys_mq_timedsend, compat_sys_mq_timedreceive, compat_sys_mq_notify, compat_sys_mq_getsetattr, compat_sys_waitid
-/*280*/ .word sys32_tee, sys_add_key, sys_request_key, sys_keyctl, compat_sys_openat
+/*280*/ .word sys32_tee, sys_add_key, sys_request_key, compat_sys_keyctl, compat_sys_openat
.word sys_mkdirat, sys_mknodat, sys_fchownat, compat_sys_futimesat, compat_sys_fstatat64
/*290*/ .word sys_unlinkat, sys_renameat, sys_linkat, sys_symlinkat, sys_readlinkat
.word sys_fchmodat, sys_faccessat, compat_sys_pselect6, compat_sys_ppoll, sys_unshare
--
1.7.9.5
@@ -0,0 +1,38 @@
From a107ab4ce96a6243eca41ca139acc033a8be253b Mon Sep 17 00:00:00 2001
From: Yishai Hadas <yishaih@mellanox.com>
Date: Thu, 10 May 2012 23:28:05 +0300
Subject: [PATCH 025/117] IB/core: Fix mismatch between locked and pinned
pages
commit c4870eb874ac16dccef40e1bc7a002c7e9156adc upstream.
Commit bc3e53f682d9 ("mm: distinguish between mlocked and pinned
pages") introduced a separate counter for pinned pages and used it in
the IB stack. However, in ib_umem_get() the pinned counter is
incremented, but ib_umem_release() wrongly decrements the locked
counter. Fix this.
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Reviewed-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/infiniband/core/umem.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/infiniband/core/umem.c b/drivers/infiniband/core/umem.c
index 71f0c0f..a841123 100644
--- a/drivers/infiniband/core/umem.c
+++ b/drivers/infiniband/core/umem.c
@@ -269,7 +269,7 @@ void ib_umem_release(struct ib_umem *umem)
} else
down_write(&mm->mmap_sem);
- current->mm->locked_vm -= diff;
+ current->mm->pinned_vm -= diff;
up_write(&mm->mmap_sem);
mmput(mm);
kfree(umem);
--
1.7.9.5
@@ -0,0 +1,34 @@
From 675478b722ec5e21b9e1db453e3c59ced85b2008 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Sun, 13 May 2012 18:35:56 +0100
Subject: [PATCH 026/117] regulator: core: Release regulator-regulator
supplies on error
commit e81dba85c6388dfabcb76cbc2b8bd02836a53ae5 upstream.
If we fail while registering a regulator make sure we release the supply
for the regulator if there is one.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/regulator/core.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 938398f..6ec610c 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -2765,6 +2765,8 @@ unset_supplies:
unset_regulator_supplies(rdev);
scrub:
+ if (rdev->supply)
+ regulator_put(rdev->supply);
kfree(rdev->constraints);
device_unregister(&rdev->dev);
/* device core frees rdev */
--
1.7.9.5
@@ -0,0 +1,41 @@
From 3dd0f718e41c8a6e580d3c11f8153ffd7ddeacde Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Sun, 13 May 2012 20:09:38 +0300
Subject: [PATCH 027/117] iommu: Fix off by one in dmar_get_fault_reason()
commit fefe1ed1398b81e3fadc92d11d91162d343c8836 upstream.
fault_reason - 0x20 == ARRAY_SIZE(irq_remap_fault_reasons) is
one past the end of the array.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Joerg Roedel <joerg.roedel@amd.com>
Cc: Youquan Song <youquan.song@intel.com>
Cc: walter harms <wharms@bfs.de>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Link: http://lkml.kernel.org/r/20120513170938.GA4280@elgon.mountain
Signed-off-by: Ingo Molnar <mingo@kernel.org>
[bwh: Backported to 3.2: s/irq_remap_fault_reasons/intr_remap_fault_reasons/]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/iommu/dmar.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c
index 35c1e17..97b2e21 100644
--- a/drivers/iommu/dmar.c
+++ b/drivers/iommu/dmar.c
@@ -1056,8 +1056,8 @@ static const char *intr_remap_fault_reasons[] =
const char *dmar_get_fault_reason(u8 fault_reason, int *fault_type)
{
- if (fault_reason >= 0x20 && (fault_reason <= 0x20 +
- ARRAY_SIZE(intr_remap_fault_reasons))) {
+ if (fault_reason >= 0x20 && (fault_reason - 0x20 <
+ ARRAY_SIZE(intr_remap_fault_reasons))) {
*fault_type = INTR_REMAP;
return intr_remap_fault_reasons[fault_reason - 0x20];
} else if (fault_reason < ARRAY_SIZE(dma_remap_fault_reasons)) {
--
1.7.9.5
@@ -0,0 +1,38 @@
From e8cefa61ecf62e7ec98658843627df00696699d5 Mon Sep 17 00:00:00 2001
From: Steve Wise <swise@opengridcomputing.com>
Date: Fri, 27 Apr 2012 09:59:16 -0500
Subject: [PATCH 028/117] RDMA/cxgb4: Always wake up waiters in
c4iw_peer_abort_intr()
commit 0f1dcfae6bc5563424346ad3a03282b8235a4c33 upstream.
This fixes a race where an ingress abort fails to wake up the thread
blocked in rdma_init() causing the app to hang.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/infiniband/hw/cxgb4/cm.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/drivers/infiniband/hw/cxgb4/cm.c b/drivers/infiniband/hw/cxgb4/cm.c
index 0747004..151334c 100644
--- a/drivers/infiniband/hw/cxgb4/cm.c
+++ b/drivers/infiniband/hw/cxgb4/cm.c
@@ -2725,11 +2725,8 @@ static int peer_abort_intr(struct c4iw_dev *dev, struct sk_buff *skb)
/*
* Wake up any threads in rdma_init() or rdma_fini().
- * However, this is not needed if com state is just
- * MPA_REQ_SENT
*/
- if (ep->com.state != MPA_REQ_SENT)
- c4iw_wake_up(&ep->com.wr_wait, -ECONNRESET);
+ c4iw_wake_up(&ep->com.wr_wait, -ECONNRESET);
sched(dev, skb);
return 0;
}
--
1.7.9.5
@@ -0,0 +1,37 @@
From 6ccdd0ede34681b1bdda91a5735e700274db9e5c Mon Sep 17 00:00:00 2001
From: Steve Wise <swise@opengridcomputing.com>
Date: Mon, 30 Apr 2012 15:31:29 -0500
Subject: [PATCH 029/117] RDMA/cxgb4: Drop peer_abort when no endpoint found
commit 14b9222808bb8bfefc71f72bc0dbdcf3b2f0140f upstream.
Log a warning and drop the abort message. Otherwise we will do a
bogus wake_up() and crash.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/infiniband/hw/cxgb4/cm.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/infiniband/hw/cxgb4/cm.c b/drivers/infiniband/hw/cxgb4/cm.c
index 151334c..2e6a538 100644
--- a/drivers/infiniband/hw/cxgb4/cm.c
+++ b/drivers/infiniband/hw/cxgb4/cm.c
@@ -2714,6 +2714,12 @@ static int peer_abort_intr(struct c4iw_dev *dev, struct sk_buff *skb)
unsigned int tid = GET_TID(req);
ep = lookup_tid(t, tid);
+ if (!ep) {
+ printk(KERN_WARNING MOD
+ "Abort on non-existent endpoint, tid %d\n", tid);
+ kfree_skb(skb);
+ return 0;
+ }
if (is_neg_adv_abort(req->status)) {
PDBG("%s neg_adv_abort ep %p tid %u\n", __func__, ep,
ep->hwtid);
--
1.7.9.5
@@ -0,0 +1,82 @@
From f292f8180fb1ab073d5e88859f3d05608fa1fbe7 Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Wed, 9 May 2012 09:37:30 +0200
Subject: [PATCH 030/117] s390/pfault: fix task state race
commit d5e50a51ccbda36b379aba9d1131a852eb908dda upstream.
When setting the current task state to TASK_UNINTERRUPTIBLE this can
race with a different cpu. The other cpu could set the task state after
it inspected it (while it was still TASK_RUNNING) to TASK_RUNNING which
would change the state from TASK_UNINTERRUPTIBLE to TASK_RUNNING again.
This race was always present in the pfault interrupt code but didn't
cause anything harmful before commit f2db2e6c "[S390] pfault: cpu hotplug
vs missing completion interrupts" which relied on the fact that after
setting the task state to TASK_UNINTERRUPTIBLE the task would really
sleep.
Since this is not necessarily the case the result may be a list corruption
of the pfault_list or, as observed, a use-after-free bug while trying to
access the task_struct of a task which terminated itself already.
To fix this, we need to get a reference of the affected task when receiving
the initial pfault interrupt and add special handling if we receive yet
another initial pfault interrupt when the task is already enqueued in the
pfault list.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
arch/s390/mm/fault.c | 14 ++++++++++++--
1 file changed, 12 insertions(+), 2 deletions(-)
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c
index c7f0fbc..b28aaa4 100644
--- a/arch/s390/mm/fault.c
+++ b/arch/s390/mm/fault.c
@@ -583,6 +583,7 @@ static void pfault_interrupt(unsigned int ext_int_code,
tsk->thread.pfault_wait = 0;
list_del(&tsk->thread.list);
wake_up_process(tsk);
+ put_task_struct(tsk);
} else {
/* Completion interrupt was faster than initial
* interrupt. Set pfault_wait to -1 so the initial
@@ -597,14 +598,22 @@ static void pfault_interrupt(unsigned int ext_int_code,
put_task_struct(tsk);
} else {
/* signal bit not set -> a real page is missing. */
- if (tsk->thread.pfault_wait == -1) {
+ if (tsk->thread.pfault_wait == 1) {
+ /* Already on the list with a reference: put to sleep */
+ set_task_state(tsk, TASK_UNINTERRUPTIBLE);
+ set_tsk_need_resched(tsk);
+ } else if (tsk->thread.pfault_wait == -1) {
/* Completion interrupt was faster than the initial
* interrupt (pfault_wait == -1). Set pfault_wait
* back to zero and exit. */
tsk->thread.pfault_wait = 0;
} else {
/* Initial interrupt arrived before completion
- * interrupt. Let the task sleep. */
+ * interrupt. Let the task sleep.
+ * An extra task reference is needed since a different
+ * cpu may set the task state to TASK_RUNNING again
+ * before the scheduler is reached. */
+ get_task_struct(tsk);
tsk->thread.pfault_wait = 1;
list_add(&tsk->thread.list, &pfault_list);
set_task_state(tsk, TASK_UNINTERRUPTIBLE);
@@ -629,6 +638,7 @@ static int __cpuinit pfault_cpu_notify(struct notifier_block *self,
list_del(&thread->list);
tsk = container_of(thread, struct task_struct, thread);
wake_up_process(tsk);
+ put_task_struct(tsk);
}
spin_unlock_irq(&pfault_lock);
break;
--
1.7.9.5
@@ -0,0 +1,46 @@
From 51945640120dea3c9b3a0207bc864138c6c1c8a8 Mon Sep 17 00:00:00 2001
From: Dan Williams <dan.j.williams@intel.com>
Date: Mon, 30 Apr 2012 11:57:44 -0700
Subject: [PATCH 031/117] isci: fix oem parameter validation on single
controller skus
commit fc25f79af321c01a739150ba2c09435cf977a63d upstream.
OEM parameters [1] are parsed from the platform option-rom / efi
driver. By default the driver was validating the parameters for the
dual-controller case, but in single-controller case only the first set
of parameters may be valid.
Limit the validation to the number of actual controllers detected
otherwise the driver may fail to parse the valid parameters leading to
driver-load or runtime failures.
[1] the platform specific set of phy address, configuration,and analog
tuning values
[stable v3.0+]
Reported-by: Dave Jiang <dave.jiang@intel.com>
Tested-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/scsi/isci/init.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/scsi/isci/init.c b/drivers/scsi/isci/init.c
index a97edab..83d08b6 100644
--- a/drivers/scsi/isci/init.c
+++ b/drivers/scsi/isci/init.c
@@ -465,7 +465,7 @@ static int __devinit isci_pci_probe(struct pci_dev *pdev, const struct pci_devic
if (!orom)
orom = isci_request_oprom(pdev);
- for (i = 0; orom && i < ARRAY_SIZE(orom->ctrl); i++) {
+ for (i = 0; orom && i < num_controllers(pdev); i++) {
if (sci_oem_parameters_validate(&orom->ctrl[i])) {
dev_warn(&pdev->dev,
"[%d]: invalid oem parameters detected, falling back to firmware\n", i);
--
1.7.9.5
@@ -0,0 +1,69 @@
From 193433aeaf9380a822cd4bf7f5777e70b2e86550 Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Mon, 21 May 2012 12:52:42 -0700
Subject: [PATCH 032/117] Fix blocking allocations called very early during
bootup
commit 31a67102f4762df5544bc2dfb34a931233d2a5b2 upstream.
During early boot, when the scheduler hasn't really been fully set up,
we really can't do blocking allocations because with certain (dubious)
configurations the "might_resched()" calls can actually result in
scheduling events.
We could just make such users always use GFP_ATOMIC, but quite often the
code that does the allocation isn't really aware of the fact that the
scheduler isn't up yet, and forcing that kind of random knowledge on the
initialization code is just annoying and not good for anybody.
And we actually have a the 'gfp_allowed_mask' exactly for this reason:
it's just that the kernel init sequence happens to set it to allow
blocking allocations much too early.
So move the 'gfp_allowed_mask' initialization from 'start_kernel()'
(which is some of the earliest init code, and runs with preemption
disabled for good reasons) into 'kernel_init()'. kernel_init() is run
in the newly created thread that will become the 'init' process, as
opposed to the early startup code that runs within the context of what
will be the first idle thread.
So by the time we reach 'kernel_init()', we know that the scheduler must
be at least limping along, because we've already scheduled from the idle
thread into the init thread.
Reported-by: Steven Rostedt <rostedt@goodmis.org>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
init/main.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/init/main.c b/init/main.c
index 217ed23..cb08fea2 100644
--- a/init/main.c
+++ b/init/main.c
@@ -563,9 +563,6 @@ asmlinkage void __init start_kernel(void)
early_boot_irqs_disabled = false;
local_irq_enable();
- /* Interrupts are enabled now so all GFP allocations are safe. */
- gfp_allowed_mask = __GFP_BITS_MASK;
-
kmem_cache_init_late();
/*
@@ -798,6 +795,10 @@ static int __init kernel_init(void * unused)
* Wait until kthreadd is all set-up.
*/
wait_for_completion(&kthreadd_done);
+
+ /* Now the scheduler is fully set up and can do blocking allocations */
+ gfp_allowed_mask = __GFP_BITS_MASK;
+
/*
* init can allocate pages on any node
*/
--
1.7.9.5
@@ -0,0 +1,109 @@
From 078dda1f3c0c180fc5d408f9f087752a0afbed3f Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Mon, 21 May 2012 16:06:20 -0700
Subject: [PATCH 033/117] vfs: make AIO use the proper rw_verify_area() area
helpers
commit a70b52ec1aaeaf60f4739edb1b422827cb6f3893 upstream.
We had for some reason overlooked the AIO interface, and it didn't use
the proper rw_verify_area() helper function that checks (for example)
mandatory locking on the file, and that the size of the access doesn't
cause us to overflow the provided offset limits etc.
Instead, AIO did just the security_file_permission() thing (that
rw_verify_area() also does) directly.
This fixes it to do all the proper helper functions, which not only
means that now mandatory file locking works with AIO too, we can
actually remove lines of code.
Reported-by: Manish Honap <manish_honap_vit@yahoo.co.in>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
fs/aio.c | 30 ++++++++++++++----------------
1 file changed, 14 insertions(+), 16 deletions(-)
diff --git a/fs/aio.c b/fs/aio.c
index b9d64d8..3b65ee7 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -1477,6 +1477,10 @@ static ssize_t aio_setup_vectored_rw(int type, struct kiocb *kiocb, bool compat)
if (ret < 0)
goto out;
+ ret = rw_verify_area(type, kiocb->ki_filp, &kiocb->ki_pos, ret);
+ if (ret < 0)
+ goto out;
+
kiocb->ki_nr_segs = kiocb->ki_nbytes;
kiocb->ki_cur_seg = 0;
/* ki_nbytes/left now reflect bytes instead of segs */
@@ -1488,11 +1492,17 @@ out:
return ret;
}
-static ssize_t aio_setup_single_vector(struct kiocb *kiocb)
+static ssize_t aio_setup_single_vector(int type, struct file * file, struct kiocb *kiocb)
{
+ int bytes;
+
+ bytes = rw_verify_area(type, file, &kiocb->ki_pos, kiocb->ki_left);
+ if (bytes < 0)
+ return bytes;
+
kiocb->ki_iovec = &kiocb->ki_inline_vec;
kiocb->ki_iovec->iov_base = kiocb->ki_buf;
- kiocb->ki_iovec->iov_len = kiocb->ki_left;
+ kiocb->ki_iovec->iov_len = bytes;
kiocb->ki_nr_segs = 1;
kiocb->ki_cur_seg = 0;
return 0;
@@ -1517,10 +1527,7 @@ static ssize_t aio_setup_iocb(struct kiocb *kiocb, bool compat)
if (unlikely(!access_ok(VERIFY_WRITE, kiocb->ki_buf,
kiocb->ki_left)))
break;
- ret = security_file_permission(file, MAY_READ);
- if (unlikely(ret))
- break;
- ret = aio_setup_single_vector(kiocb);
+ ret = aio_setup_single_vector(READ, file, kiocb);
if (ret)
break;
ret = -EINVAL;
@@ -1535,10 +1542,7 @@ static ssize_t aio_setup_iocb(struct kiocb *kiocb, bool compat)
if (unlikely(!access_ok(VERIFY_READ, kiocb->ki_buf,
kiocb->ki_left)))
break;
- ret = security_file_permission(file, MAY_WRITE);
- if (unlikely(ret))
- break;
- ret = aio_setup_single_vector(kiocb);
+ ret = aio_setup_single_vector(WRITE, file, kiocb);
if (ret)
break;
ret = -EINVAL;
@@ -1549,9 +1553,6 @@ static ssize_t aio_setup_iocb(struct kiocb *kiocb, bool compat)
ret = -EBADF;
if (unlikely(!(file->f_mode & FMODE_READ)))
break;
- ret = security_file_permission(file, MAY_READ);
- if (unlikely(ret))
- break;
ret = aio_setup_vectored_rw(READ, kiocb, compat);
if (ret)
break;
@@ -1563,9 +1564,6 @@ static ssize_t aio_setup_iocb(struct kiocb *kiocb, bool compat)
ret = -EBADF;
if (unlikely(!(file->f_mode & FMODE_WRITE)))
break;
- ret = security_file_permission(file, MAY_WRITE);
- if (unlikely(ret))
- break;
ret = aio_setup_vectored_rw(WRITE, kiocb, compat);
if (ret)
break;
--
1.7.9.5
@@ -0,0 +1,100 @@
From d2c7de1fefbc917e3731bf69e18b553b3c7a165f Mon Sep 17 00:00:00 2001
From: Kees Cook <keescook@chromium.org>
Date: Wed, 18 Apr 2012 23:16:45 -0700
Subject: [PATCH 034/117] docs: update HOWTO for 2.6.x -> 3.x versioning
commit 591bfc6bf9e5e25e464fd4c87d64afd5135667c4 upstream.
The HOWTO document needed updating for the new kernel versioning. The
git URI for -next was updated as well.
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
Documentation/HOWTO | 32 ++++++++++++++++----------------
1 file changed, 16 insertions(+), 16 deletions(-)
diff --git a/Documentation/HOWTO b/Documentation/HOWTO
index f7ade3b..59c080f 100644
--- a/Documentation/HOWTO
+++ b/Documentation/HOWTO
@@ -218,16 +218,16 @@ The development process
Linux kernel development process currently consists of a few different
main kernel "branches" and lots of different subsystem-specific kernel
branches. These different branches are:
- - main 2.6.x kernel tree
- - 2.6.x.y -stable kernel tree
- - 2.6.x -git kernel patches
+ - main 3.x kernel tree
+ - 3.x.y -stable kernel tree
+ - 3.x -git kernel patches
- subsystem specific kernel trees and patches
- - the 2.6.x -next kernel tree for integration tests
+ - the 3.x -next kernel tree for integration tests
-2.6.x kernel tree
+3.x kernel tree
-----------------
-2.6.x kernels are maintained by Linus Torvalds, and can be found on
-kernel.org in the pub/linux/kernel/v2.6/ directory. Its development
+3.x kernels are maintained by Linus Torvalds, and can be found on
+kernel.org in the pub/linux/kernel/v3.x/ directory. Its development
process is as follows:
- As soon as a new kernel is released a two weeks window is open,
during this period of time maintainers can submit big diffs to
@@ -262,20 +262,20 @@ mailing list about kernel releases:
released according to perceived bug status, not according to a
preconceived timeline."
-2.6.x.y -stable kernel tree
+3.x.y -stable kernel tree
---------------------------
-Kernels with 4-part versions are -stable kernels. They contain
+Kernels with 3-part versions are -stable kernels. They contain
relatively small and critical fixes for security problems or significant
-regressions discovered in a given 2.6.x kernel.
+regressions discovered in a given 3.x kernel.
This is the recommended branch for users who want the most recent stable
kernel and are not interested in helping test development/experimental
versions.
-If no 2.6.x.y kernel is available, then the highest numbered 2.6.x
+If no 3.x.y kernel is available, then the highest numbered 3.x
kernel is the current stable kernel.
-2.6.x.y are maintained by the "stable" team <stable@vger.kernel.org>, and
+3.x.y are maintained by the "stable" team <stable@vger.kernel.org>, and
are released as needs dictate. The normal release period is approximately
two weeks, but it can be longer if there are no pressing problems. A
security-related problem, instead, can cause a release to happen almost
@@ -285,7 +285,7 @@ The file Documentation/stable_kernel_rules.txt in the kernel tree
documents what kinds of changes are acceptable for the -stable tree, and
how the release process works.
-2.6.x -git patches
+3.x -git patches
------------------
These are daily snapshots of Linus' kernel tree which are managed in a
git repository (hence the name.) These patches are usually released
@@ -317,13 +317,13 @@ revisions to it, and maintainers can mark patches as under review,
accepted, or rejected. Most of these patchwork sites are listed at
http://patchwork.kernel.org/.
-2.6.x -next kernel tree for integration tests
+3.x -next kernel tree for integration tests
---------------------------------------------
-Before updates from subsystem trees are merged into the mainline 2.6.x
+Before updates from subsystem trees are merged into the mainline 3.x
tree, they need to be integration-tested. For this purpose, a special
testing repository exists into which virtually all subsystem trees are
pulled on an almost daily basis:
- http://git.kernel.org/?p=linux/kernel/git/sfr/linux-next.git
+ http://git.kernel.org/?p=linux/kernel/git/next/linux-next.git
http://linux.f-seidel.de/linux-next/pmwiki/
This way, the -next kernel gives a summary outlook onto what will be
--
1.7.9.5
@@ -0,0 +1,34 @@
From bf21ec2ca510b5e8d017ea1177ffa78a2fec5b93 Mon Sep 17 00:00:00 2001
From: Julia Lawall <Julia.Lawall@lip6.fr>
Date: Sun, 22 Apr 2012 13:37:09 +0200
Subject: [PATCH 035/117] drivers/staging/comedi/comedi_fops.c: add missing
vfree
commit abae41e6438b798e046d721b6ccdd55b4a398170 upstream.
aux_free is freed on all other exits from the function. By removing the
return, we can benefit from the vfree already at the end of the function.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/staging/comedi/comedi_fops.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c
index 5e78c77..4ad2c0e 100644
--- a/drivers/staging/comedi/comedi_fops.c
+++ b/drivers/staging/comedi/comedi_fops.c
@@ -280,7 +280,7 @@ static int do_devconfig_ioctl(struct comedi_device *dev,
if (ret == 0) {
if (!try_module_get(dev->driver->module)) {
comedi_device_detach(dev);
- return -ENOSYS;
+ ret = -ENOSYS;
}
}
--
1.7.9.5
@@ -0,0 +1,70 @@
From a62e9c8e391b91bd60c705748ea8ec207ef72eab Mon Sep 17 00:00:00 2001
From: Johan Hovold <jhovold@gmail.com>
Date: Thu, 10 Nov 2011 14:58:26 +0100
Subject: [PATCH 036/117] USB: move usb_translate_errors to linux/usb.h
commit 2c4d6bf295ae10ffcd84f0df6cb642598eb66603 upstream.
Move usb_translate_errors from usb core to linux/usb.h as it is meant to
be accessed from drivers.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/usb/core/usb.h | 14 --------------
include/linux/usb.h | 13 +++++++++++++
2 files changed, 13 insertions(+), 14 deletions(-)
diff --git a/drivers/usb/core/usb.h b/drivers/usb/core/usb.h
index 3888778..45e8479 100644
--- a/drivers/usb/core/usb.h
+++ b/drivers/usb/core/usb.h
@@ -132,20 +132,6 @@ static inline int is_usb_device_driver(struct device_driver *drv)
for_devices;
}
-/* translate USB error codes to codes user space understands */
-static inline int usb_translate_errors(int error_code)
-{
- switch (error_code) {
- case 0:
- case -ENOMEM:
- case -ENODEV:
- return error_code;
- default:
- return -EIO;
- }
-}
-
-
/* for labeling diagnostics */
extern const char *usbcore_name;
diff --git a/include/linux/usb.h b/include/linux/usb.h
index 7626e5a..68cdc84 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -1600,6 +1600,19 @@ usb_maxpacket(struct usb_device *udev, int pipe, int is_out)
/* ----------------------------------------------------------------------- */
+/* translate USB error codes to codes user space understands */
+static inline int usb_translate_errors(int error_code)
+{
+ switch (error_code) {
+ case 0:
+ case -ENOMEM:
+ case -ENODEV:
+ return error_code;
+ default:
+ return -EIO;
+ }
+}
+
/* Events from the usb core */
#define USB_DEVICE_ADD 0x0001
#define USB_DEVICE_REMOVE 0x0002
--
1.7.9.5
@@ -0,0 +1,33 @@
From 1676590583666a41bf8b26924d0ab9b729455813 Mon Sep 17 00:00:00 2001
From: Oliver Neukum <oliver@neukum.org>
Date: Fri, 27 Apr 2012 14:23:54 +0200
Subject: [PATCH 037/117] USB: cdc-wdm: sanitize error returns
commit 24a85bae5da2b43fed423859c09c5a81ab359473 upstream.
wdm_flush() returns unsanitized USB error codes.
They must be cleaned up to before being anded to user space
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/usb/class/cdc-wdm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c
index 2db0327..ac9099a 100644
--- a/drivers/usb/class/cdc-wdm.c
+++ b/drivers/usb/class/cdc-wdm.c
@@ -500,7 +500,7 @@ static int wdm_flush(struct file *file, fl_owner_t id)
dev_err(&desc->intf->dev, "Error in flush path: %d\n",
desc->werr);
- return desc->werr;
+ return usb_translate_errors(desc->werr);
}
static unsigned int wdm_poll(struct file *file, struct poll_table_struct *wait)
--
1.7.9.5
@@ -0,0 +1,35 @@
From bc51604d6cadd35fa7a9a4d70644471cb6ab81f8 Mon Sep 17 00:00:00 2001
From: Oliver Neukum <oliver@neukum.org>
Date: Fri, 27 Apr 2012 14:36:37 +0200
Subject: [PATCH 038/117] USB: cdc-wdm: fix memory leak
commit 2f338c8a1904e2e7aa5a8bd12fb0cf2422d17da4 upstream.
cleanup() is not called if the last close() comes after
disconnect(). That leads to a memory leak. Rectified
by checking for an earlier disconnect() in release()
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/usb/class/cdc-wdm.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c
index ac9099a..cfe5be4 100644
--- a/drivers/usb/class/cdc-wdm.c
+++ b/drivers/usb/class/cdc-wdm.c
@@ -590,6 +590,8 @@ static int wdm_release(struct inode *inode, struct file *file)
kill_urbs(desc);
if (!test_bit(WDM_DISCONNECTING, &desc->flags))
desc->intf->needs_remote_wakeup = 0;
+ else
+ cleanup(desc);
}
mutex_unlock(&wdm_mutex);
return 0;
--
1.7.9.5
@@ -0,0 +1,102 @@
From e90d4ef7a5801bf1e9c956edf51d22f6c8f33611 Mon Sep 17 00:00:00 2001
From: Arnaud Patard <apatard@hupstream.com>
Date: Wed, 25 Apr 2012 12:17:24 +0200
Subject: [PATCH 039/117] 8250_pci: fix pch uart matching
commit aaa10eb1d0034eccc096f583fe308f0921617598 upstream.
The rules used to make 8250_pci "ignore" the PCH uarts are lacking pci subids
entries, preventing it to match and thus is breaking serial port support for
theses systems.
This has been tested on a nanoETXexpress-TT, which has a specifici uart clock.
Tested-by: Erwan Velu <Erwan.Velu@zodiacaerospace.com>
Signed-off-by: Arnaud Patard <apatard@hupstream.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[bwh: Backported to 3.2: adjust filename]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/tty/serial/8250_pci.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/drivers/tty/serial/8250_pci.c b/drivers/tty/serial/8250_pci.c
index 825937a..482d51e 100644
--- a/drivers/tty/serial/8250_pci.c
+++ b/drivers/tty/serial/8250_pci.c
@@ -1590,54 +1590,72 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = 0x8811,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
.init = pci_eg20t_init,
.setup = pci_default_setup,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = 0x8812,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
.init = pci_eg20t_init,
.setup = pci_default_setup,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = 0x8813,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
.init = pci_eg20t_init,
.setup = pci_default_setup,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = 0x8814,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
.init = pci_eg20t_init,
.setup = pci_default_setup,
},
{
.vendor = 0x10DB,
.device = 0x8027,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
.init = pci_eg20t_init,
.setup = pci_default_setup,
},
{
.vendor = 0x10DB,
.device = 0x8028,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
.init = pci_eg20t_init,
.setup = pci_default_setup,
},
{
.vendor = 0x10DB,
.device = 0x8029,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
.init = pci_eg20t_init,
.setup = pci_default_setup,
},
{
.vendor = 0x10DB,
.device = 0x800C,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
.init = pci_eg20t_init,
.setup = pci_default_setup,
},
{
.vendor = 0x10DB,
.device = 0x800D,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
.init = pci_eg20t_init,
.setup = pci_default_setup,
},
--
1.7.9.5
@@ -0,0 +1,36 @@
From aa66cb26f7b032f3ae43ff3cb126b3a3cff9b151 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Steffen=20M=C3=BCller?= <steffen.mueller@radio-frei.de>
Date: Mon, 30 Apr 2012 13:05:34 +0200
Subject: [PATCH 040/117] usb: add USB_QUIRK_RESET_RESUME for M-Audio 88es
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
commit 166cb70e97bd83d7ae9bbec6ae59a178fd9bb823 upstream.
Tested-by: Steffen Müller <steffen.mueller@radio-frei.de>
Signed-off-by: Steffen Müller <steffen.mueller@radio-frei.de>
Signed-off-by: Stefan Seyfried <seife+kernel@b1-systems.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/usb/core/quirks.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index 4c65eb6..32d3adc 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -123,6 +123,9 @@ static const struct usb_device_id usb_quirk_list[] = {
/* Guillemot Webcam Hercules Dualpix Exchange*/
{ USB_DEVICE(0x06f8, 0x3005), .driver_info = USB_QUIRK_RESET_RESUME },
+ /* Midiman M-Audio Keystation 88es */
+ { USB_DEVICE(0x0763, 0x0192), .driver_info = USB_QUIRK_RESET_RESUME },
+
/* M-Systems Flash Disk Pioneers */
{ USB_DEVICE(0x08ec, 0x1000), .driver_info = USB_QUIRK_RESET_RESUME },
--
1.7.9.5
@@ -0,0 +1,60 @@
From bb6dfbca863a06884b7af33a6c46fddb690eb7d3 Mon Sep 17 00:00:00 2001
From: Paul Zimmerman <Paul.Zimmerman@synopsys.com>
Date: Mon, 16 Apr 2012 14:19:07 -0700
Subject: [PATCH 041/117] usb: usbtest: two super speed fixes for usbtest
commit 6a23ccd216b6a8ba2c67a9f9d8969b4431ad2920 upstream.
bMaxPacketSize0 field for super speed is a power of 2, not a count.
The size itself is always 512.
Max packet size for a super speed bulk endpoint is 1024, so
allocate the urb size in halt_simple() accordingly.
Signed-off-by: Paul Zimmerman <paulz@synopsys.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/usb/misc/usbtest.c | 17 ++++++++++++-----
1 file changed, 12 insertions(+), 5 deletions(-)
diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c
index bd6d008..b9ac9a3 100644
--- a/drivers/usb/misc/usbtest.c
+++ b/drivers/usb/misc/usbtest.c
@@ -1025,7 +1025,10 @@ test_ctrl_queue(struct usbtest_dev *dev, struct usbtest_param *param)
case 13: /* short read, resembling case 10 */
req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0);
/* last data packet "should" be DATA1, not DATA0 */
- len = 1024 - udev->descriptor.bMaxPacketSize0;
+ if (udev->speed == USB_SPEED_SUPER)
+ len = 1024 - 512;
+ else
+ len = 1024 - udev->descriptor.bMaxPacketSize0;
expected = -EREMOTEIO;
break;
case 14: /* short read; try to fill the last packet */
@@ -1384,11 +1387,15 @@ static int test_halt(struct usbtest_dev *tdev, int ep, struct urb *urb)
static int halt_simple(struct usbtest_dev *dev)
{
- int ep;
- int retval = 0;
- struct urb *urb;
+ int ep;
+ int retval = 0;
+ struct urb *urb;
+ struct usb_device *udev = testdev_to_usbdev(dev);
- urb = simple_alloc_urb(testdev_to_usbdev(dev), 0, 512);
+ if (udev->speed == USB_SPEED_SUPER)
+ urb = simple_alloc_urb(udev, 0, 1024);
+ else
+ urb = simple_alloc_urb(udev, 0, 512);
if (urb == NULL)
return -ENOMEM;
--
1.7.9.5
@@ -0,0 +1,51 @@
From 52c1820cb4b5f10c0664104bb6f570305d0c49cc Mon Sep 17 00:00:00 2001
From: Christian Melki <christian.melki@ericsson.se>
Date: Mon, 30 Apr 2012 11:21:26 +0200
Subject: [PATCH 042/117] 8250.c: less than 2400 baud fix.
commit f9a9111b540fd67db5dab332f4b83d86c90e27b1 upstream.
We noticed that we were loosing data at speed less than 2400 baud.
It turned out our (TI16750 compatible) uart with 64 byte outgoing fifo
was truncated to 16 byte (bit 5 sets fifo len) when modifying the fcr
reg.
The input code still fills the buffer with 64 bytes if I remember
correctly and thus data is lost.
Our fix was to remove whiping of the fcr content and just add the
TRIGGER_1 which we want for latency.
I can't see why this would not work on less than 2400 always, for all
uarts ...
Otherwise one would have to make sure the filling of the fifo re-checks
the current state of available fifo size (urrk).
Signed-off-by: Christian Melki <christian.melki@ericsson.se>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[bwh: Backported to 3.2: adjust filename; replace *port with up->port]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/tty/serial/8250.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/drivers/tty/serial/8250.c b/drivers/tty/serial/8250.c
index eeadf1b..70585b6 100644
--- a/drivers/tty/serial/8250.c
+++ b/drivers/tty/serial/8250.c
@@ -2327,10 +2327,11 @@ serial8250_do_set_termios(struct uart_port *port, struct ktermios *termios,
quot++;
if (up->capabilities & UART_CAP_FIFO && up->port.fifosize > 1) {
- if (baud < 2400)
- fcr = UART_FCR_ENABLE_FIFO | UART_FCR_TRIGGER_1;
- else
- fcr = uart_config[up->port.type].fcr;
+ fcr = uart_config[up->port.type].fcr;
+ if (baud < 2400) {
+ fcr &= ~UART_FCR_TRIGGER_MASK;
+ fcr |= UART_FCR_TRIGGER_1;
+ }
}
/*
--
1.7.9.5
@@ -0,0 +1,49 @@
From 5ccddedea273a8a59eda8f3a7ad026d0751ada3d Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Mon, 23 Apr 2012 15:06:09 +0200
Subject: [PATCH 043/117] usb-xhci: Handle COMP_TX_ERR for isoc tds
commit 9c745995ae5c4ff787f34a359de908facc11ee00 upstream.
While testing unplugging an UVC HD webcam with usb-redirection (so through
usbdevfs), my userspace usb-redir code was getting a value of -1 in
iso_frame_desc[n].status, which according to Documentation/usb/error-codes.txt
is not a valid value.
The source of this -1 is the default case in xhci-ring.c:process_isoc_td()
adding a kprintf there showed the value of trb_comp_code to be COMP_TX_ERR
in this case, so this patch adds handling for that completion code to
process_isoc_td().
This was observed and tested with the following xhci controller:
1033:0194 NEC Corporation uPD720200 USB 3.0 Host Controller (rev 04)
Note: I also wonder if setting frame->status to -1 (-EPERM) is the best we can
do, but since I cannot come up with anything better I've left that as is.
This patch should be backported to kernels as old as 2.6.36, which contain the
commit 04e51901dd44f40a5a385ced897f6bca87d5f40a "USB: xHCI: Isochronous
transfer implementation".
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/usb/host/xhci-ring.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 43b3447..2304c45 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -1752,6 +1752,7 @@ static int process_isoc_td(struct xhci_hcd *xhci, struct xhci_td *td,
break;
case COMP_DEV_ERR:
case COMP_STALL:
+ case COMP_TX_ERR:
frame->status = -EPROTO;
skip_td = true;
break;
--
1.7.9.5
@@ -0,0 +1,63 @@
From 48a73f4c8ba6d9e5587a29aa4f9710f405a28cc7 Mon Sep 17 00:00:00 2001
From: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Date: Mon, 16 Apr 2012 10:56:47 -0700
Subject: [PATCH 044/117] xhci: Avoid dead ports when CONFIG_USB_XHCI_HCD=n
commit 51c9e6c7732b67769c0a514d31f505e49fa82dd4 upstream.
If the user chooses to say "no" to CONFIG_USB_XHCI_HCD on a system
with an Intel Panther Point chipset, the PCI quirks code or the EHCI
driver will switch the ports over to the xHCI host, but the xHCI driver
will never load. The ports will be powered off and seem "dead" to the
user.
Fix this by only switching the ports over if CONFIG_USB_XHCI_HCD is
either compiled in, or compiled as a module.
This patch should be backported to stable kernels as old as 3.0,
that contain commit 69e848c2090aebba5698a1620604c7dccb448684
"Intel xhci: Support EHCI/xHCI port switching."
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Reported-by: Eric Anholt <eric.anholt@intel.com>
Reported-by: David Bein <d.bein@f5.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/usb/host/pci-quirks.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c
index 2afff88..a33362b 100644
--- a/drivers/usb/host/pci-quirks.c
+++ b/drivers/usb/host/pci-quirks.c
@@ -9,6 +9,7 @@
*/
#include <linux/types.h>
+#include <linux/kconfig.h>
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/init.h>
@@ -742,6 +743,19 @@ void usb_enable_xhci_ports(struct pci_dev *xhci_pdev)
{
u32 ports_available;
+ /* Don't switchover the ports if the user hasn't compiled the xHCI
+ * driver. Otherwise they will see "dead" USB ports that don't power
+ * the devices.
+ */
+ if (!IS_ENABLED(CONFIG_USB_XHCI_HCD)) {
+ dev_warn(&xhci_pdev->dev,
+ "CONFIG_USB_XHCI_HCD is turned off, "
+ "defaulting to EHCI.\n");
+ dev_warn(&xhci_pdev->dev,
+ "USB 3.0 devices will work at USB 2.0 speeds.\n");
+ return;
+ }
+
ports_available = 0xffffffff;
/* Write USB3_PSSEN, the USB 3.0 Port SuperSpeed Enable
* Register, to turn on SuperSpeed terminations for all
--
1.7.9.5
@@ -0,0 +1,81 @@
From cc4326a34985d9ce41cd590e7cf7275a0fbaa9dd Mon Sep 17 00:00:00 2001
From: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Date: Thu, 9 Feb 2012 15:55:13 -0800
Subject: [PATCH 045/117] xhci: Add Lynx Point to list of Intel switchable
hosts.
commit 1c12443ab8eba71a658fae4572147e56d1f84f66 upstream.
The upcoming Intel Lynx Point chipset includes an xHCI host controller
that can have ports switched from the EHCI host controller, just like
the Intel Panther Point xHCI host. This time, ports from both EHCI
hosts can be switched to the xHCI host controller. The PCI config
registers to do the port switching are in the exact same place in the
xHCI PCI configuration registers, with the same semantics.
Hooray for shipping patches for next-gen hardware before the current gen
hardware is even available for purchase!
This patch should be backported to stable kernels as old as 3.0,
that contain commit 69e848c2090aebba5698a1620604c7dccb448684
"Intel xhci: Support EHCI/xHCI port switching."
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/usb/host/ehci-pci.c | 4 +++-
drivers/usb/host/pci-quirks.c | 18 +++++++++++++++++-
2 files changed, 20 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c
index 971d312..ee85e81 100644
--- a/drivers/usb/host/ehci-pci.c
+++ b/drivers/usb/host/ehci-pci.c
@@ -365,7 +365,9 @@ static bool usb_is_intel_switchable_ehci(struct pci_dev *pdev)
{
return pdev->class == PCI_CLASS_SERIAL_USB_EHCI &&
pdev->vendor == PCI_VENDOR_ID_INTEL &&
- pdev->device == 0x1E26;
+ (pdev->device == 0x1E26 ||
+ pdev->device == 0x8C2D ||
+ pdev->device == 0x8C26);
}
static void ehci_enable_xhci_companion(void)
diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c
index a33362b..833b3c6 100644
--- a/drivers/usb/host/pci-quirks.c
+++ b/drivers/usb/host/pci-quirks.c
@@ -713,12 +713,28 @@ static int handshake(void __iomem *ptr, u32 mask, u32 done,
return -ETIMEDOUT;
}
-bool usb_is_intel_switchable_xhci(struct pci_dev *pdev)
+#define PCI_DEVICE_ID_INTEL_LYNX_POINT_XHCI 0x8C31
+
+bool usb_is_intel_ppt_switchable_xhci(struct pci_dev *pdev)
{
return pdev->class == PCI_CLASS_SERIAL_USB_XHCI &&
pdev->vendor == PCI_VENDOR_ID_INTEL &&
pdev->device == PCI_DEVICE_ID_INTEL_PANTHERPOINT_XHCI;
}
+
+/* The Intel Lynx Point chipset also has switchable ports. */
+bool usb_is_intel_lpt_switchable_xhci(struct pci_dev *pdev)
+{
+ return pdev->class == PCI_CLASS_SERIAL_USB_XHCI &&
+ pdev->vendor == PCI_VENDOR_ID_INTEL &&
+ pdev->device == PCI_DEVICE_ID_INTEL_LYNX_POINT_XHCI;
+}
+
+bool usb_is_intel_switchable_xhci(struct pci_dev *pdev)
+{
+ return usb_is_intel_ppt_switchable_xhci(pdev) ||
+ usb_is_intel_lpt_switchable_xhci(pdev);
+}
EXPORT_SYMBOL_GPL(usb_is_intel_switchable_xhci);
/*
--
1.7.9.5
@@ -0,0 +1,44 @@
From 45bf78829065725fa73b4cacfaf2a2142056d301 Mon Sep 17 00:00:00 2001
From: Peter Chen <peter.chen@freescale.com>
Date: Sun, 1 Apr 2012 15:17:16 +0800
Subject: [PATCH 046/117] usb: gadget: fsl_udc_core: dTD's next dtd pointer
need to be updated once written
commit 4d0947dec4db1224354e2f6f00ae22ce38e62a43 upstream.
dTD's next dtd pointer need to be updated once CPU writes it, or this
request may not be handled by controller, then host will get NAK from
device forever.
This problem occurs when there is a request is handling, we need to add
a new request to dTD list, if this new request is added before the current
one is finished, the new request is intended to added as next dtd pointer
at current dTD, but without wmb(), the dTD's next dtd pointer may not be
updated when the controller reads it. In that case, the controller will
still get Terminate Bit is 1 at dTD's next dtd pointer, that means there is
no next request, then this new request is missed by controller.
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Acked-by: Li Yang <leoli@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/usb/gadget/fsl_udc_core.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/usb/gadget/fsl_udc_core.c b/drivers/usb/gadget/fsl_udc_core.c
index 9085d14..185db03 100644
--- a/drivers/usb/gadget/fsl_udc_core.c
+++ b/drivers/usb/gadget/fsl_udc_core.c
@@ -736,6 +736,8 @@ static void fsl_queue_td(struct fsl_ep *ep, struct fsl_req *req)
lastreq = list_entry(ep->queue.prev, struct fsl_req, queue);
lastreq->tail->next_td_ptr =
cpu_to_hc32(req->head->td_dma & DTD_ADDR_MASK);
+ /* Ensure dTD's next dtd pointer to be updated */
+ wmb();
/* Read prime bit, if 1 goto done */
if (fsl_readl(&dr_regs->endpointprime) & bitmask)
return;
--
1.7.9.5
@@ -0,0 +1,36 @@
From 17e2d3e18d2042fb6fb23605752754deb87772c5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lothar=20Wa=C3=9Fmann?= <LW@KARO-electronics.de>
Date: Thu, 3 May 2012 11:37:12 +0200
Subject: [PATCH 047/117] Add missing call to uart_update_timeout()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
commit 8b979f7c6bf13a57e7b6002f1175312a44773960 upstream.
This patch fixes a problem reported here:
http://article.gmane.org/gmane.linux.ports.arm.kernel/155242/match=auart
Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/tty/serial/mxs-auart.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/tty/serial/mxs-auart.c b/drivers/tty/serial/mxs-auart.c
index 7e02c9c..5b3d063 100644
--- a/drivers/tty/serial/mxs-auart.c
+++ b/drivers/tty/serial/mxs-auart.c
@@ -368,6 +368,8 @@ static void mxs_auart_settermios(struct uart_port *u,
writel(ctrl, u->membase + AUART_LINECTRL);
writel(ctrl2, u->membase + AUART_CTRL2);
+
+ uart_update_timeout(u, termios->c_cflag, baud);
}
static irqreturn_t mxs_auart_irq_handle(int irq, void *context)
--
1.7.9.5
@@ -0,0 +1,58 @@
From 52bf48eda8302a253e63ac9ec069a1635932b237 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C3=89ric=20Piel?= <piel@delmic.com>
Date: Mon, 7 May 2012 12:37:54 +0200
Subject: [PATCH 048/117] USB: ftdi-sio: add support for Physik Instrumente
E-861
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
commit b69cc672052540e8efb1368420f10d7d4d8b8a3d upstream.
This adds VID/PID for the PI E-861. Without it, I had to do:
modprobe -q ftdi-sio product=0x1008 vendor=0x1a72
http://www.physikinstrumente.com/en/products/prdetail.php?sortnr=900610
Signed-off-by: Éric Piel <piel@delmic.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/usb/serial/ftdi_sio.c | 1 +
drivers/usb/serial/ftdi_sio_ids.h | 8 ++++++++
2 files changed, 9 insertions(+)
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index c4cf3f3..450bdfe 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -809,6 +809,7 @@ static struct usb_device_id id_table_combined [] = {
.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
{ USB_DEVICE(LARSENBRUSGAARD_VID, LB_ALTITRACK_PID) },
{ USB_DEVICE(GN_OTOMETRICS_VID, AURICAL_USB_PID) },
+ { USB_DEVICE(PI_VID, PI_E861_PID) },
{ USB_DEVICE(BAYER_VID, BAYER_CONTOUR_CABLE_PID) },
{ USB_DEVICE(FTDI_VID, MARVELL_OPENRD_PID),
.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h
index c6dd18e..219b199 100644
--- a/drivers/usb/serial/ftdi_sio_ids.h
+++ b/drivers/usb/serial/ftdi_sio_ids.h
@@ -785,6 +785,14 @@
#define RTSYSTEMS_SERIAL_VX7_PID 0x9e52 /* Serial converter for VX-7 Radios using FT232RL */
#define RTSYSTEMS_CT29B_PID 0x9e54 /* CT29B Radio Cable */
+
+/*
+ * Physik Instrumente
+ * http://www.physikinstrumente.com/en/products/
+ */
+#define PI_VID 0x1a72 /* Vendor ID */
+#define PI_E861_PID 0x1008 /* E-861 piezo controller USB connection */
+
/*
* Bayer Ascensia Contour blood glucose meter USB-converter cable.
* http://winglucofacts.com/cables/
--
1.7.9.5
@@ -0,0 +1,36 @@
From 7041c376790f592d9ed3c6b88a44a6cf18b8423c Mon Sep 17 00:00:00 2001
From: Matthias Fend <Matthias.Fend@wolfvision.net>
Date: Mon, 7 May 2012 14:37:30 +0200
Subject: [PATCH 049/117] USB: ffs-test: fix length argument of out function
call
commit eb9c5836384cd2a276254df6254ed71117983626 upstream.
The out functions should only handle actual available data instead of the complete buffer.
Otherwise for example the ep0_consume function will report ghost events since it tries to decode
the complete buffer - which may contain partly invalid data.
Signed-off-by: Matthias Fend <matthias.fend@wolfvision.net>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
tools/usb/ffs-test.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/usb/ffs-test.c b/tools/usb/ffs-test.c
index b9c7986..f17dfee 100644
--- a/tools/usb/ffs-test.c
+++ b/tools/usb/ffs-test.c
@@ -324,7 +324,7 @@ static void *start_thread_helper(void *arg)
ret = t->in(t, t->buf, t->buf_size);
if (ret > 0) {
- ret = t->out(t, t->buf, t->buf_size);
+ ret = t->out(t, t->buf, ret);
name = out_name;
op = "write";
} else {
--
1.7.9.5
@@ -0,0 +1,60 @@
From 0842fcae9a509f08c6d540dfa4d3f097c4f3f92d Mon Sep 17 00:00:00 2001
From: David Herrmann <dh.herrmann@googlemail.com>
Date: Tue, 8 May 2012 16:52:31 +0200
Subject: [PATCH 050/117] HID: wiimote: Fix IR data parser
commit 74b89e8a3625c17c7452532dfb997ac4f1a38751 upstream.
We incorrectly parse incoming IR data. The extra byte contains the upper
bits and not the lower bits of the x/y coordinates. User-space expects
absolute position data from us so this patch does not break existing
applications. On the contrary, it extends the virtual view and fixes
garbage reports for margin areas of the virtual screen.
Reported-by: Peter Bukovsky <bukovsky.peter@gmail.com>
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
[bwh: Backported to 3.2: adjust filename]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/hid/hid-wiimote.c | 16 +++++-----------
1 file changed, 5 insertions(+), 11 deletions(-)
diff --git a/drivers/hid/hid-wiimote.c b/drivers/hid/hid-wiimote.c
index 76739c0..bfa9a27 100644
--- a/drivers/hid/hid-wiimote.c
+++ b/drivers/hid/hid-wiimote.c
@@ -829,7 +829,7 @@ static void __ir_to_input(struct wiimote_data *wdata, const __u8 *ir,
/*
* Basic IR data is encoded into 3 bytes. The first two bytes are the
- * upper 8 bit of the X/Y data, the 3rd byte contains the lower 2 bits
+ * lower 8 bit of the X/Y data, the 3rd byte contains the upper 2 bits
* of both.
* If data is packed, then the 3rd byte is put first and slightly
* reordered. This allows to interleave packed and non-packed data to
@@ -838,17 +838,11 @@ static void __ir_to_input(struct wiimote_data *wdata, const __u8 *ir,
*/
if (packed) {
- x = ir[1] << 2;
- y = ir[2] << 2;
-
- x |= ir[0] & 0x3;
- y |= (ir[0] >> 2) & 0x3;
+ x = ir[1] | ((ir[0] & 0x03) << 8);
+ y = ir[2] | ((ir[0] & 0x0c) << 6);
} else {
- x = ir[0] << 2;
- y = ir[1] << 2;
-
- x |= (ir[2] >> 4) & 0x3;
- y |= (ir[2] >> 6) & 0x3;
+ x = ir[0] | ((ir[2] & 0x30) << 4);
+ y = ir[1] | ((ir[2] & 0xc0) << 2);
}
input_report_abs(wdata->ir, xid, x);
--
1.7.9.5
@@ -0,0 +1,41 @@
From a595c200511d66729bc55aadbb93adb96988c590 Mon Sep 17 00:00:00 2001
From: Alan Stern <stern@rowland.harvard.edu>
Date: Tue, 8 May 2012 15:15:25 -0400
Subject: [PATCH 051/117] usb-storage: unusual_devs entry for Yarvik PMP400
MP4 player
commit df767b71e5816692134d59c0c17e0f77cd73333d upstream.
This patch (as1553) adds an unusual_dev entrie for the Yarvik PMP400
MP4 music player.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: Jesse Feddema <jdfeddema@gmail.com>
Tested-by: Jesse Feddema <jdfeddema@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/usb/storage/unusual_devs.h | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h
index 24caba7..591f57f 100644
--- a/drivers/usb/storage/unusual_devs.h
+++ b/drivers/usb/storage/unusual_devs.h
@@ -1885,6 +1885,13 @@ UNUSUAL_DEV( 0x1652, 0x6600, 0x0201, 0x0201,
USB_SC_DEVICE, USB_PR_DEVICE, NULL,
US_FL_IGNORE_RESIDUE ),
+/* Reported by Jesse Feddema <jdfeddema@gmail.com> */
+UNUSUAL_DEV( 0x177f, 0x0400, 0x0000, 0x0000,
+ "Yarvik",
+ "PMP400",
+ USB_SC_DEVICE, USB_PR_DEVICE, NULL,
+ US_FL_BULK_IGNORE_TAG | US_FL_MAX_SECTORS_64 ),
+
/* Reported by Hans de Goede <hdegoede@redhat.com>
* These Appotech controllers are found in Picture Frames, they provide a
* (buggy) emulation of a cdrom drive which contains the windows software
--
1.7.9.5
@@ -0,0 +1,63 @@
From ac7728e7d633262cd020d764404abf381f282d12 Mon Sep 17 00:00:00 2001
From: Nicolas Ferre <nicolas.ferre@atmel.com>
Date: Wed, 9 May 2012 10:48:54 +0200
Subject: [PATCH 052/117] USB: ohci-at91: add a reset function to fix race
condition
commit 07e4e556eff4938eb2edf2591de3aa7d7fb82b52 upstream.
A possible race condition appears because we are not initializing
the ohci->regs before calling usb_hcd_request_irqs().
We move the call to ohci_init() in hcd->driver->reset() instead of
hcd->driver->start() to fix this.
This was experienced when we share the same IRQ line between OHCI and EHCI
controllers.
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Tested-by: Christian Eggers <christian.eggers@kathrein.de>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/usb/host/ohci-at91.c | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c
index 95a9fec..a60c7aa 100644
--- a/drivers/usb/host/ohci-at91.c
+++ b/drivers/usb/host/ohci-at91.c
@@ -199,7 +199,7 @@ static void usb_hcd_at91_remove(struct usb_hcd *hcd,
/*-------------------------------------------------------------------------*/
static int __devinit
-ohci_at91_start (struct usb_hcd *hcd)
+ohci_at91_reset (struct usb_hcd *hcd)
{
struct at91_usbh_data *board = hcd->self.controller->platform_data;
struct ohci_hcd *ohci = hcd_to_ohci (hcd);
@@ -209,6 +209,14 @@ ohci_at91_start (struct usb_hcd *hcd)
return ret;
ohci->num_ports = board->ports;
+ return 0;
+}
+
+static int __devinit
+ohci_at91_start (struct usb_hcd *hcd)
+{
+ struct ohci_hcd *ohci = hcd_to_ohci (hcd);
+ int ret;
if ((ret = ohci_run(ohci)) < 0) {
err("can't start %s", hcd->self.bus_name);
@@ -390,6 +398,7 @@ static const struct hc_driver ohci_at91_hc_driver = {
/*
* basic lifecycle operations
*/
+ .reset = ohci_at91_reset,
.start = ohci_at91_start,
.stop = ohci_stop,
.shutdown = ohci_shutdown,
--
1.7.9.5
@@ -0,0 +1,70 @@
From 4061b435a02342ee10ee34fb69f2c75d53e8da70 Mon Sep 17 00:00:00 2001
From: Jonathan Nieder <jrnieder@gmail.com>
Date: Fri, 11 May 2012 16:17:16 +0200
Subject: [PATCH 053/117] HID: logitech: read all 32 bits of report type
bitfield
commit 44d27f7dfedd9aadc082cda31462f6600f56e4ec upstream.
On big-endian systems (e.g., Apple PowerBook), trying to use a
logitech wireless mouse with the Logitech Unifying Receiver does not
work with v3.2 and later kernels. The device doesn't show up in
/dev/input. Older kernels work fine.
That is because the new hid-logitech-dj driver claims the device. The
device arrival notification appears:
20 00 41 02 00 00 00 00 00 00 00 00 00 00 00
and we read the report_types bitfield (02 00 00 00) to find out what
kind of device it is. Unfortunately the driver only reads the first 8
bits and treats that value as a 32-bit little-endian number, so on a
powerpc the report type seems to be 0x02000000 and is not recognized.
Even on little-endian machines, connecting a media center remote
control (report type 00 01 00 00) with this driver loaded would
presumably fail for the same reason.
Fix both problems by using get_unaligned_le32() to read all four
bytes, which is a little clearer anyway. After this change, the
wireless mouse works on Hugo's PowerBook again.
Based on a patch by Nestor Lopez Casado.
Addresses http://bugs.debian.org/671292
Reported-by: Hugo Osvaldo Barrera <hugo@osvaldobarrera.com.ar>
Inspired-by: Nestor Lopez Casado <nlopezcasad@logitech.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Nestor Lopez Casado <nlopezcasad@logitech.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/hid/hid-logitech-dj.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/hid/hid-logitech-dj.c b/drivers/hid/hid-logitech-dj.c
index 38b12e4..2eac8c5 100644
--- a/drivers/hid/hid-logitech-dj.c
+++ b/drivers/hid/hid-logitech-dj.c
@@ -26,6 +26,7 @@
#include <linux/hid.h>
#include <linux/module.h>
#include <linux/usb.h>
+#include <asm/unaligned.h>
#include "usbhid/usbhid.h"
#include "hid-ids.h"
#include "hid-logitech-dj.h"
@@ -265,8 +266,8 @@ static void logi_dj_recv_add_djhid_device(struct dj_receiver_dev *djrcv_dev,
goto dj_device_allocate_fail;
}
- dj_dev->reports_supported = le32_to_cpu(
- dj_report->report_params[DEVICE_PAIRED_RF_REPORT_TYPE]);
+ dj_dev->reports_supported = get_unaligned_le32(
+ dj_report->report_params + DEVICE_PAIRED_RF_REPORT_TYPE);
dj_dev->hdev = dj_hiddev;
dj_dev->dj_receiver_dev = djrcv_dev;
dj_dev->device_index = dj_report->device_index;
--
1.7.9.5
@@ -0,0 +1,77 @@
From 38827d01920cd8adbdbdb89d79b749f6cb50b8f0 Mon Sep 17 00:00:00 2001
From: Darren Hart <dvhart@linux.intel.com>
Date: Fri, 11 May 2012 13:56:57 -0700
Subject: [PATCH 054/117] USB: serial: ti_usb_3410_5052: Add support for the
FRI2 serial console
commit 975dc33b82cb887d75a29b1e3835c8eb063a8e99 upstream.
The Kontron M2M development board, also known as the Fish River Island II,
has an optional daughter card providing access to the PCH_UART (EG20T) via
a ti_usb_3410_5052 uart to usb chip.
http://us.kontron.com/products/systems+and+platforms/m2m/m2m+smart+services+developer+kit.html
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
CC: Al Borchers <alborchers@steinerpoint.com>
CC: Peter Berger <pberger@brimson.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/usb/serial/ti_usb_3410_5052.c | 6 ++++--
drivers/usb/serial/ti_usb_3410_5052.h | 1 +
2 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c
index 21c82b0..2856474 100644
--- a/drivers/usb/serial/ti_usb_3410_5052.c
+++ b/drivers/usb/serial/ti_usb_3410_5052.c
@@ -165,7 +165,7 @@ static unsigned int product_5052_count;
/* the array dimension is the number of default entries plus */
/* TI_EXTRA_VID_PID_COUNT user defined entries plus 1 terminating */
/* null entry */
-static struct usb_device_id ti_id_table_3410[14+TI_EXTRA_VID_PID_COUNT+1] = {
+static struct usb_device_id ti_id_table_3410[15+TI_EXTRA_VID_PID_COUNT+1] = {
{ USB_DEVICE(TI_VENDOR_ID, TI_3410_PRODUCT_ID) },
{ USB_DEVICE(TI_VENDOR_ID, TI_3410_EZ430_ID) },
{ USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_NO_FW_PRODUCT_ID) },
@@ -180,6 +180,7 @@ static struct usb_device_id ti_id_table_3410[14+TI_EXTRA_VID_PID_COUNT+1] = {
{ USB_DEVICE(IBM_VENDOR_ID, IBM_454B_PRODUCT_ID) },
{ USB_DEVICE(IBM_VENDOR_ID, IBM_454C_PRODUCT_ID) },
{ USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_PRODUCT_ID) },
+ { USB_DEVICE(TI_VENDOR_ID, FRI2_PRODUCT_ID) },
};
static struct usb_device_id ti_id_table_5052[5+TI_EXTRA_VID_PID_COUNT+1] = {
@@ -189,7 +190,7 @@ static struct usb_device_id ti_id_table_5052[5+TI_EXTRA_VID_PID_COUNT+1] = {
{ USB_DEVICE(TI_VENDOR_ID, TI_5052_FIRMWARE_PRODUCT_ID) },
};
-static struct usb_device_id ti_id_table_combined[18+2*TI_EXTRA_VID_PID_COUNT+1] = {
+static struct usb_device_id ti_id_table_combined[19+2*TI_EXTRA_VID_PID_COUNT+1] = {
{ USB_DEVICE(TI_VENDOR_ID, TI_3410_PRODUCT_ID) },
{ USB_DEVICE(TI_VENDOR_ID, TI_3410_EZ430_ID) },
{ USB_DEVICE(MTS_VENDOR_ID, MTS_GSM_NO_FW_PRODUCT_ID) },
@@ -208,6 +209,7 @@ static struct usb_device_id ti_id_table_combined[18+2*TI_EXTRA_VID_PID_COUNT+1]
{ USB_DEVICE(IBM_VENDOR_ID, IBM_454B_PRODUCT_ID) },
{ USB_DEVICE(IBM_VENDOR_ID, IBM_454C_PRODUCT_ID) },
{ USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_PRODUCT_ID) },
+ { USB_DEVICE(TI_VENDOR_ID, FRI2_PRODUCT_ID) },
{ }
};
diff --git a/drivers/usb/serial/ti_usb_3410_5052.h b/drivers/usb/serial/ti_usb_3410_5052.h
index f140f1b..b353e7e 100644
--- a/drivers/usb/serial/ti_usb_3410_5052.h
+++ b/drivers/usb/serial/ti_usb_3410_5052.h
@@ -37,6 +37,7 @@
#define TI_5152_BOOT_PRODUCT_ID 0x5152 /* no EEPROM, no firmware */
#define TI_5052_EEPROM_PRODUCT_ID 0x505A /* EEPROM, no firmware */
#define TI_5052_FIRMWARE_PRODUCT_ID 0x505F /* firmware is running */
+#define FRI2_PRODUCT_ID 0x5053 /* Fish River Island II */
/* Multi-Tech vendor and product ids */
#define MTS_VENDOR_ID 0x06E0
--
1.7.9.5
@@ -0,0 +1,38 @@
From 420e76b95a867f5105ee9b3d824c47f62601c19b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B8rn=20Mork?= <bjorn@mork.no>
Date: Wed, 9 May 2012 13:53:21 +0200
Subject: [PATCH 055/117] USB: cdc-wdm: poll must return POLLHUP if device is
gone
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
commit 616b6937e348ef2b4c6ea5fef2cd3c441145efb0 upstream.
Else the poll will be restarted indefinitely in a tight loop,
preventing final device cleanup.
Cc: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/usb/class/cdc-wdm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c
index cfe5be4..38d8c33 100644
--- a/drivers/usb/class/cdc-wdm.c
+++ b/drivers/usb/class/cdc-wdm.c
@@ -511,7 +511,7 @@ static unsigned int wdm_poll(struct file *file, struct poll_table_struct *wait)
spin_lock_irqsave(&desc->iuspin, flags);
if (test_bit(WDM_DISCONNECTING, &desc->flags)) {
- mask = POLLERR;
+ mask = POLLHUP | POLLERR;
spin_unlock_irqrestore(&desc->iuspin, flags);
goto desc_out;
}
--
1.7.9.5
@@ -0,0 +1,54 @@
From ec4941d4623bada1da050a962485961da8c928d6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B8rn=20Mork?= <bjorn@mork.no>
Date: Mon, 30 Apr 2012 09:26:11 +0200
Subject: [PATCH 056/117] USB: cdc-wdm: add debug messages on cleanup
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
commit 880bca3a2a6f159d7453e0cbcbfe2f1d8204d907 upstream.
Device state cleanup is done in either wdm_disconnect or
wdm_release depending on the order they are called. Adding
a couple of debug messages to document the program flow.
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Acked-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/usb/class/cdc-wdm.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c
index 38d8c33..40a3f0b 100644
--- a/drivers/usb/class/cdc-wdm.c
+++ b/drivers/usb/class/cdc-wdm.c
@@ -588,10 +588,12 @@ static int wdm_release(struct inode *inode, struct file *file)
if (!desc->count) {
dev_dbg(&desc->intf->dev, "wdm_release: cleanup");
kill_urbs(desc);
- if (!test_bit(WDM_DISCONNECTING, &desc->flags))
+ if (!test_bit(WDM_DISCONNECTING, &desc->flags)) {
desc->intf->needs_remote_wakeup = 0;
- else
+ } else {
+ dev_dbg(&desc->intf->dev, "%s: device gone - cleaning up\n", __func__);
cleanup(desc);
+ }
}
mutex_unlock(&wdm_mutex);
return 0;
@@ -807,6 +809,8 @@ static void wdm_disconnect(struct usb_interface *intf)
mutex_unlock(&desc->rlock);
if (!desc->count)
cleanup(desc);
+ else
+ dev_dbg(&intf->dev, "%s: %d open files - postponing cleanup\n", __func__, desc->count);
mutex_unlock(&wdm_mutex);
}
--
1.7.9.5
@@ -0,0 +1,66 @@
From beaa75548738c322895c5b3ca7c010397cfb0afb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B8rn=20Mork?= <bjorn@mork.no>
Date: Wed, 9 May 2012 13:53:22 +0200
Subject: [PATCH 057/117] USB: cdc-wdm: cannot use dev_printk when device is
gone
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
commit 6b0b79d38806481c1c8fffa7c5842f3c83679a42 upstream.
We cannot dereference a removed USB interface for
dev_printk. Use pr_debug instead where necessary.
Flush errors are expected if device is unplugged and are
therefore best ingored at this point.
Move the kill_urbs() call in wdm_release with dev_dbg()
for the non disconnect, as we know it has already been
called if WDM_DISCONNECTING is set. This does not
actually fix anything, but keeps the code more consistent.
Cc: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/usb/class/cdc-wdm.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c
index 40a3f0b..554ac90 100644
--- a/drivers/usb/class/cdc-wdm.c
+++ b/drivers/usb/class/cdc-wdm.c
@@ -496,7 +496,9 @@ static int wdm_flush(struct file *file, fl_owner_t id)
struct wdm_device *desc = file->private_data;
wait_event(desc->wait, !test_bit(WDM_IN_USE, &desc->flags));
- if (desc->werr < 0)
+
+ /* cannot dereference desc->intf if WDM_DISCONNECTING */
+ if (desc->werr < 0 && !test_bit(WDM_DISCONNECTING, &desc->flags))
dev_err(&desc->intf->dev, "Error in flush path: %d\n",
desc->werr);
@@ -586,12 +588,13 @@ static int wdm_release(struct inode *inode, struct file *file)
mutex_unlock(&desc->wlock);
if (!desc->count) {
- dev_dbg(&desc->intf->dev, "wdm_release: cleanup");
- kill_urbs(desc);
if (!test_bit(WDM_DISCONNECTING, &desc->flags)) {
+ dev_dbg(&desc->intf->dev, "wdm_release: cleanup");
+ kill_urbs(desc);
desc->intf->needs_remote_wakeup = 0;
} else {
- dev_dbg(&desc->intf->dev, "%s: device gone - cleaning up\n", __func__);
+ /* must avoid dev_printk here as desc->intf is invalid */
+ pr_debug(KBUILD_MODNAME " %s: device gone - cleaning up\n", __func__);
cleanup(desc);
}
}
--
1.7.9.5
@@ -0,0 +1,33 @@
From d3f8f68e0ff8065d2769fc80ebab6cd4a99df65d Mon Sep 17 00:00:00 2001
From: Alan Cox <alan@linux.intel.com>
Date: Mon, 14 May 2012 14:51:22 +0100
Subject: [PATCH 058/117] tty: Allow uart_register/unregister/register
commit 1e66cded334e6cea596c72f6f650eec351b1e959 upstream.
This is legitimate but because we don't clear the drv->state pointer in the
unregister code causes a bogus BUG().
Resolves-bug: https://bugzilla.kernel.org/show_bug.cgi?id=42880
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/tty/serial/serial_core.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
index 0406d7f..af5ffb9 100644
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@ -2305,6 +2305,7 @@ void uart_unregister_driver(struct uart_driver *drv)
tty_unregister_driver(p);
put_tty_driver(p);
kfree(drv->state);
+ drv->state = NULL;
drv->tty_driver = NULL;
}
--
1.7.9.5
@@ -0,0 +1,51 @@
From ac2fd7de4ac5b536aace631588cdab6c27a3ef9d Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Mon, 14 May 2012 15:04:50 -0700
Subject: [PATCH 059/117] workqueue: skip nr_running sanity check in
worker_enter_idle() if trustee is active
commit 544ecf310f0e7f51fa057ac2a295fc1b3b35a9d3 upstream.
worker_enter_idle() has WARN_ON_ONCE() which triggers if nr_running
isn't zero when every worker is idle. This can trigger spuriously
while a cpu is going down due to the way trustee sets %WORKER_ROGUE
and zaps nr_running.
It first sets %WORKER_ROGUE on all workers without updating
nr_running, releases gcwq->lock, schedules, regrabs gcwq->lock and
then zaps nr_running. If the last running worker enters idle
inbetween, it would see stale nr_running which hasn't been zapped yet
and trigger the WARN_ON_ONCE().
Fix it by performing the sanity check iff the trustee is idle.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
kernel/workqueue.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index bb425b1..7947e16 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -1215,8 +1215,13 @@ static void worker_enter_idle(struct worker *worker)
} else
wake_up_all(&gcwq->trustee_wait);
- /* sanity check nr_running */
- WARN_ON_ONCE(gcwq->nr_workers == gcwq->nr_idle &&
+ /*
+ * Sanity check nr_running. Because trustee releases gcwq->lock
+ * between setting %WORKER_ROGUE and zapping nr_running, the
+ * warning may trigger spuriously. Check iff trustee is idle.
+ */
+ WARN_ON_ONCE(gcwq->trustee_state == TRUSTEE_DONE &&
+ gcwq->nr_workers == gcwq->nr_idle &&
atomic_read(get_gcwq_nr_running(gcwq->cpu)));
}
--
1.7.9.5
@@ -0,0 +1,129 @@
From 24338a0903923d202e90e35100abe050436bf00a Mon Sep 17 00:00:00 2001
From: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Date: Tue, 8 May 2012 09:22:49 -0700
Subject: [PATCH 060/117] xhci: Add new short TX quirk for Fresco Logic host.
commit 1530bbc6272d9da1e39ef8e06190d42c13a02733 upstream.
Sergio reported that when he recorded audio from a USB headset mic
plugged into the USB 3.0 port on his ASUS N53SV-DH72, the audio sounded
"robotic". When plugged into the USB 2.0 port under EHCI on the same
laptop, the audio sounded fine. The device is:
Bus 002 Device 004: ID 046d:0a0c Logitech, Inc. Clear Chat Comfort USB Headset
The problem was tracked down to the Fresco Logic xHCI host controller
not correctly reporting short transfers on isochronous IN endpoints.
The driver would submit a 96 byte transfer, the device would only send
88 or 90 bytes, and the xHCI host would report the transfer had a
"successful" completion code, with an untransferred buffer length of 8
or 6 bytes.
The successful completion code and non-zero untransferred length is a
contradiction. The xHCI host is supposed to only mark a transfer as
successful if all the bytes are transferred. Otherwise, the transfer
should be marked with a short packet completion code. Without the EHCI
bus trace, we wouldn't know whether the xHCI driver should trust the
completion code or the untransferred length. With it, we know to trust
the untransferred length.
Add a new xHCI quirk for the Fresco Logic host controller. If a
transfer is reported as successful, but the untransferred length is
non-zero, print a warning. For the Fresco Logic host, change the
completion code to COMP_SHORT_TX and process the transfer like a short
transfer.
This should be backported to stable kernels that contain the commit
f5182b4155b9d686c5540a6822486400e34ddd98 "xhci: Disable MSI for some
Fresco Logic hosts." That commit was marked for stable kernels as old
as 2.6.36.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Reported-by: Sergio Correia <lists@uece.net>
Tested-by: Sergio Correia <lists@uece.net>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/usb/host/xhci-pci.c | 1 +
drivers/usb/host/xhci-ring.c | 20 +++++++++++++++++---
drivers/usb/host/xhci.h | 1 +
3 files changed, 19 insertions(+), 3 deletions(-)
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 211296a..daf5754 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -72,6 +72,7 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
xhci_dbg(xhci, "QUIRK: Fresco Logic revision %u "
"has broken MSI implementation\n",
pdev->revision);
+ xhci->quirks |= XHCI_TRUST_TX_LENGTH;
}
if (pdev->vendor == PCI_VENDOR_ID_NEC)
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 2304c45..fb0981e 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -1735,8 +1735,12 @@ static int process_isoc_td(struct xhci_hcd *xhci, struct xhci_td *td,
/* handle completion code */
switch (trb_comp_code) {
case COMP_SUCCESS:
- frame->status = 0;
- break;
+ if (TRB_LEN(le32_to_cpu(event->transfer_len)) == 0) {
+ frame->status = 0;
+ break;
+ }
+ if ((xhci->quirks & XHCI_TRUST_TX_LENGTH))
+ trb_comp_code = COMP_SHORT_TX;
case COMP_SHORT_TX:
frame->status = td->urb->transfer_flags & URB_SHORT_NOT_OK ?
-EREMOTEIO : 0;
@@ -1833,13 +1837,16 @@ static int process_bulk_intr_td(struct xhci_hcd *xhci, struct xhci_td *td,
switch (trb_comp_code) {
case COMP_SUCCESS:
/* Double check that the HW transferred everything. */
- if (event_trb != td->last_trb) {
+ if (event_trb != td->last_trb ||
+ TRB_LEN(le32_to_cpu(event->transfer_len)) != 0) {
xhci_warn(xhci, "WARN Successful completion "
"on short TX\n");
if (td->urb->transfer_flags & URB_SHORT_NOT_OK)
*status = -EREMOTEIO;
else
*status = 0;
+ if ((xhci->quirks & XHCI_TRUST_TX_LENGTH))
+ trb_comp_code = COMP_SHORT_TX;
} else {
*status = 0;
}
@@ -1978,6 +1985,13 @@ static int handle_tx_event(struct xhci_hcd *xhci,
* transfer type
*/
case COMP_SUCCESS:
+ if (TRB_LEN(le32_to_cpu(event->transfer_len)) == 0)
+ break;
+ if (xhci->quirks & XHCI_TRUST_TX_LENGTH)
+ trb_comp_code = COMP_SHORT_TX;
+ else
+ xhci_warn(xhci, "WARN Successful completion on short TX: "
+ "needs XHCI_TRUST_TX_LENGTH quirk?\n");
case COMP_SHORT_TX:
break;
case COMP_STOP:
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 4850c4d..363b141 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1466,6 +1466,7 @@ struct xhci_hcd {
#define XHCI_RESET_ON_RESUME (1 << 7)
#define XHCI_SW_BW_CHECKING (1 << 8)
#define XHCI_AMD_0x96_HOST (1 << 9)
+#define XHCI_TRUST_TX_LENGTH (1 << 10)
unsigned int num_active_eps;
unsigned int limit_active_eps;
/* There are two roothubs to keep track of bus suspend info for */
--
1.7.9.5
@@ -0,0 +1,43 @@
From 644753e795bddc5e687932d9e8b6795859553ac3 Mon Sep 17 00:00:00 2001
From: Andiry Xu <andiry.xu@gmail.com>
Date: Sat, 5 May 2012 00:50:10 +0800
Subject: [PATCH 061/117] usbcore: enable USB2 LPM if port suspend fails
commit c3e751e4f4754793bb52bd5ae30e9cc027edbb12 upstream.
USB2 LPM is disabled when device begin to suspend and enabled after device
is resumed. That's because USB spec does not define the transition from
U1/U2 state to U3 state.
If usb_port_suspend() fails, usb_port_resume() is never called, and USB2 LPM
is disabled in this situation. Enable USB2 LPM if port suspend fails.
This patch should be backported to kernels as old as 3.2, that contain
the commit 65580b4321eb36f16ae8b5987bfa1bb948fc5112 "xHCI: set USB2
hardware LPM".
Signed-off-by: Andiry Xu <andiry.xu@gmail.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/usb/core/hub.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index ab4e49f..50cf41a 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -2420,6 +2420,10 @@ int usb_port_suspend(struct usb_device *udev, pm_message_t msg)
NULL, 0,
USB_CTRL_SET_TIMEOUT);
+ /* Try to enable USB2 hardware LPM again */
+ if (udev->usb2_hw_lpm_capable == 1)
+ usb_set_usb2_hardware_lpm(udev, 1);
+
/* System sleep transitions should never fail */
if (!PMSG_IS_AUTO(msg))
status = 0;
--
1.7.9.5
@@ -0,0 +1,62 @@
From 2ece12a2e8f1df09f28dbed203e3295d99d94c83 Mon Sep 17 00:00:00 2001
From: Robert Richter <robert.richter@amd.com>
Date: Fri, 18 May 2012 12:40:42 +0200
Subject: [PATCH 062/117] perf/x86: Update event scheduling constraints for
AMD family 15h models
commit 5bcdf5e4fee3c45e1281c25e4941f2163cb28c65 upstream.
This update is for newer family 15h cpu models from 0x02 to 0x1f.
Signed-off-by: Robert Richter <robert.richter@amd.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1337337642-1621-1-git-send-email-robert.richter@amd.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
arch/x86/kernel/cpu/perf_event_amd.c | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/arch/x86/kernel/cpu/perf_event_amd.c b/arch/x86/kernel/cpu/perf_event_amd.c
index f64a039..3dbfb00 100644
--- a/arch/x86/kernel/cpu/perf_event_amd.c
+++ b/arch/x86/kernel/cpu/perf_event_amd.c
@@ -473,6 +473,7 @@ static __initconst const struct x86_pmu amd_pmu = {
* 0x023 DE PERF_CTL[2:0]
* 0x02D LS PERF_CTL[3]
* 0x02E LS PERF_CTL[3,0]
+ * 0x031 LS PERF_CTL[2:0] (**)
* 0x043 CU PERF_CTL[2:0]
* 0x045 CU PERF_CTL[2:0]
* 0x046 CU PERF_CTL[2:0]
@@ -486,10 +487,12 @@ static __initconst const struct x86_pmu amd_pmu = {
* 0x0DD LS PERF_CTL[5:0]
* 0x0DE LS PERF_CTL[5:0]
* 0x0DF LS PERF_CTL[5:0]
+ * 0x1C0 EX PERF_CTL[5:3]
* 0x1D6 EX PERF_CTL[5:0]
* 0x1D8 EX PERF_CTL[5:0]
*
- * (*) depending on the umask all FPU counters may be used
+ * (*) depending on the umask all FPU counters may be used
+ * (**) only one unitmask enabled at a time
*/
static struct event_constraint amd_f15_PMC0 = EVENT_CONSTRAINT(0, 0x01, 0);
@@ -539,6 +542,12 @@ amd_get_event_constraints_f15h(struct cpu_hw_events *cpuc, struct perf_event *ev
return &amd_f15_PMC3;
case 0x02E:
return &amd_f15_PMC30;
+ case 0x031:
+ if (hweight_long(hwc->config & ARCH_PERFMON_EVENTSEL_UMASK) <= 1)
+ return &amd_f15_PMC20;
+ return &emptyconstraint;
+ case 0x1C0:
+ return &amd_f15_PMC53;
default:
return &amd_f15_PMC50;
}
--
1.7.9.5
@@ -0,0 +1,74 @@
From 51025bed29bdd5301f9028357e13707356ae9692 Mon Sep 17 00:00:00 2001
From: Oliver Neukum <oneukum@suse.de>
Date: Thu, 10 May 2012 10:19:21 +0200
Subject: [PATCH 063/117] USB: fix resource leak in xhci power loss path
commit f8a9e72d125f4e00ec529ba67b674321a1f3bf31 upstream.
Some more data structures must be freed and counters
reset if an XHCI controller has lost power. The failure
to do so renders some chips inoperative after a certain number
of S4 cycles.
This patch should be backported to kernels as old as 3.2,
that contain the commits c29eea621900f18287d50519f72cb9113746d75a
"xhci: Implement HS/FS/LS bandwidth checking." and
commit 839c817ce67178ca3c7c7ad534c571bba1e69ebe
"xhci: Implement HS/FS/LS bandwidth checking."
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/usb/host/xhci-mem.c | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
index 01c3800..a7b0676 100644
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -1699,6 +1699,14 @@ void xhci_mem_cleanup(struct xhci_hcd *xhci)
{
struct pci_dev *pdev = to_pci_dev(xhci_to_hcd(xhci)->self.controller);
struct dev_info *dev_info, *next;
+ struct list_head *tt_list_head;
+ struct list_head *tt;
+ struct list_head *endpoints;
+ struct list_head *ep, *q;
+ struct xhci_tt_bw_info *tt_info;
+ struct xhci_interval_bw_table *bwt;
+ struct xhci_virt_ep *virt_ep;
+
unsigned long flags;
int size;
int i;
@@ -1757,8 +1765,26 @@ void xhci_mem_cleanup(struct xhci_hcd *xhci)
}
spin_unlock_irqrestore(&xhci->lock, flags);
+ bwt = &xhci->rh_bw->bw_table;
+ for (i = 0; i < XHCI_MAX_INTERVAL; i++) {
+ endpoints = &bwt->interval_bw[i].endpoints;
+ list_for_each_safe(ep, q, endpoints) {
+ virt_ep = list_entry(ep, struct xhci_virt_ep, bw_endpoint_list);
+ list_del(&virt_ep->bw_endpoint_list);
+ kfree(virt_ep);
+ }
+ }
+
+ tt_list_head = &xhci->rh_bw->tts;
+ list_for_each_safe(tt, q, tt_list_head) {
+ tt_info = list_entry(tt, struct xhci_tt_bw_info, tt_list);
+ list_del(tt);
+ kfree(tt_info);
+ }
+
xhci->num_usb2_ports = 0;
xhci->num_usb3_ports = 0;
+ xhci->num_active_eps = 0;
kfree(xhci->usb2_ports);
kfree(xhci->usb3_ports);
kfree(xhci->port_array);
--
1.7.9.5
@@ -0,0 +1,39 @@
From 06abda2cc51b6f5ffcb67e7b7299ffd7e3af966b Mon Sep 17 00:00:00 2001
From: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Date: Tue, 8 May 2012 07:09:26 -0700
Subject: [PATCH 064/117] xhci: Reset reserved command ring TRBs on cleanup.
commit 33b2831ac870d50cc8e01c317b07fb1e69c13fe1 upstream.
When the xHCI driver needs to clean up memory (perhaps due to a failed
register restore on resume from S3 or resume from S4), it needs to reset
the number of reserved TRBs on the command ring to zero. Otherwise,
several resume cycles (about 30) with a UAS device attached will
continually increment the number of reserved TRBs, until all command
submissions fail because there isn't enough room on the command ring.
This patch should be backported to kernels as old as 2.6.32,
that contain the commit 913a8a344ffcaf0b4a586d6662a2c66a7106557d
"USB: xhci: Change how xHCI commands are handled."
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/usb/host/xhci-mem.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
index a7b0676..4232e868 100644
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -1723,6 +1723,7 @@ void xhci_mem_cleanup(struct xhci_hcd *xhci)
xhci->event_ring = NULL;
xhci_dbg(xhci, "Freed event ring\n");
+ xhci->cmd_ring_reserved_trbs = 0;
if (xhci->cmd_ring)
xhci_ring_free(xhci, xhci->cmd_ring);
xhci->cmd_ring = NULL;
--
1.7.9.5
@@ -0,0 +1,132 @@
From 13538bbeb4fc2e5f45d426579967a675474e4f16 Mon Sep 17 00:00:00 2001
From: Huajun Li <huajun.li.lee@gmail.com>
Date: Fri, 18 May 2012 20:12:51 +0800
Subject: [PATCH 065/117] USB: Remove races in devio.c
commit 4e09dcf20f7b5358615514c2ec8584b248ab8874 upstream.
There exist races in devio.c, below is one case,
and there are similar races in destroy_async()
and proc_unlinkurb(). Remove these races.
cancel_bulk_urbs() async_completed()
------------------- -----------------------
spin_unlock(&ps->lock);
list_move_tail(&as->asynclist,
&ps->async_completed);
wake_up(&ps->wait);
Lead to free_async() be triggered,
then urb and 'as' will be freed.
usb_unlink_urb(as->urb);
===> refer to the freed 'as'
Signed-off-by: Huajun Li <huajun.li.lee@gmail.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Oncaphillis <oncaphillis@snafu.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/usb/core/devio.c | 33 +++++++++++++++++++++++++--------
1 file changed, 25 insertions(+), 8 deletions(-)
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index 7abf060..f6ff837 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -295,17 +295,14 @@ static struct async *async_getcompleted(struct dev_state *ps)
static struct async *async_getpending(struct dev_state *ps,
void __user *userurb)
{
- unsigned long flags;
struct async *as;
- spin_lock_irqsave(&ps->lock, flags);
list_for_each_entry(as, &ps->async_pending, asynclist)
if (as->userurb == userurb) {
list_del_init(&as->asynclist);
- spin_unlock_irqrestore(&ps->lock, flags);
return as;
}
- spin_unlock_irqrestore(&ps->lock, flags);
+
return NULL;
}
@@ -360,6 +357,7 @@ static void cancel_bulk_urbs(struct dev_state *ps, unsigned bulk_addr)
__releases(ps->lock)
__acquires(ps->lock)
{
+ struct urb *urb;
struct async *as;
/* Mark all the pending URBs that match bulk_addr, up to but not
@@ -382,8 +380,11 @@ __acquires(ps->lock)
list_for_each_entry(as, &ps->async_pending, asynclist) {
if (as->bulk_status == AS_UNLINK) {
as->bulk_status = 0; /* Only once */
+ urb = as->urb;
+ usb_get_urb(urb);
spin_unlock(&ps->lock); /* Allow completions */
- usb_unlink_urb(as->urb);
+ usb_unlink_urb(urb);
+ usb_put_urb(urb);
spin_lock(&ps->lock);
goto rescan;
}
@@ -434,6 +435,7 @@ static void async_completed(struct urb *urb)
static void destroy_async(struct dev_state *ps, struct list_head *list)
{
+ struct urb *urb;
struct async *as;
unsigned long flags;
@@ -441,10 +443,13 @@ static void destroy_async(struct dev_state *ps, struct list_head *list)
while (!list_empty(list)) {
as = list_entry(list->next, struct async, asynclist);
list_del_init(&as->asynclist);
+ urb = as->urb;
+ usb_get_urb(urb);
/* drop the spinlock so the completion handler can run */
spin_unlock_irqrestore(&ps->lock, flags);
- usb_kill_urb(as->urb);
+ usb_kill_urb(urb);
+ usb_put_urb(urb);
spin_lock_irqsave(&ps->lock, flags);
}
spin_unlock_irqrestore(&ps->lock, flags);
@@ -1350,12 +1355,24 @@ static int proc_submiturb(struct dev_state *ps, void __user *arg)
static int proc_unlinkurb(struct dev_state *ps, void __user *arg)
{
+ struct urb *urb;
struct async *as;
+ unsigned long flags;
+ spin_lock_irqsave(&ps->lock, flags);
as = async_getpending(ps, arg);
- if (!as)
+ if (!as) {
+ spin_unlock_irqrestore(&ps->lock, flags);
return -EINVAL;
- usb_kill_urb(as->urb);
+ }
+
+ urb = as->urb;
+ usb_get_urb(urb);
+ spin_unlock_irqrestore(&ps->lock, flags);
+
+ usb_kill_urb(urb);
+ usb_put_urb(urb);
+
return 0;
}
--
1.7.9.5
@@ -0,0 +1,37 @@
From d4bae88d4fc370e24457c3cf69fb343316b8f759 Mon Sep 17 00:00:00 2001
From: Shaohua Li <shli@kernel.org>
Date: Mon, 21 May 2012 09:26:59 +1000
Subject: [PATCH 066/117] md: using GFP_NOIO to allocate bio for flush request
commit b5e1b8cee7ad58a15d2fa79bcd7946acb592602d upstream.
A flush request is usually issued in transaction commit code path, so
using GFP_KERNEL to allocate memory for flush request bio falls into
the classic deadlock issue.
This is suitable for any -stable kernel to which it applies as it
avoids a possible deadlock.
Signed-off-by: Shaohua Li <shli@fusionio.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/md/md.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/md/md.c b/drivers/md/md.c
index adcd850..700ecae 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -453,7 +453,7 @@ static void submit_flushes(struct work_struct *ws)
atomic_inc(&rdev->nr_pending);
atomic_inc(&rdev->nr_pending);
rcu_read_unlock();
- bi = bio_alloc_mddev(GFP_KERNEL, 0, mddev);
+ bi = bio_alloc_mddev(GFP_NOIO, 0, mddev);
bi->bi_end_io = md_end_flush;
bi->bi_private = rdev;
bi->bi_bdev = rdev->bdev;
--
1.7.9.5
@@ -0,0 +1,41 @@
From ed8e2c17d62006fb136c30abeb552673727c5eee Mon Sep 17 00:00:00 2001
From: Richard Weinberger <richard@nod.at>
Date: Sat, 14 Apr 2012 17:29:30 +0200
Subject: [PATCH 067/117] um: Implement a custom pte_same() function
commit f15b9000eb1d09bbaa4b0a6b2089d7e1f64e84b3 upstream.
UML uses the _PAGE_NEWPAGE flag to mark pages which are not jet
installed on the host side using mmap().
pte_same() has to ignore this flag, otherwise unuse_pte_range()
is unable to unuse the page because two identical
page tables entries with different _PAGE_NEWPAGE flags would not
match and swapoff() would never return.
Analyzed-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
arch/um/include/asm/pgtable.h | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/arch/um/include/asm/pgtable.h b/arch/um/include/asm/pgtable.h
index 41474fb..0fea0ec 100644
--- a/arch/um/include/asm/pgtable.h
+++ b/arch/um/include/asm/pgtable.h
@@ -271,6 +271,12 @@ static inline void set_pte(pte_t *pteptr, pte_t pteval)
}
#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
+#define __HAVE_ARCH_PTE_SAME
+static inline int pte_same(pte_t pte_a, pte_t pte_b)
+{
+ return !((pte_val(pte_a) ^ pte_val(pte_b)) & ~_PAGE_NEWPAGE);
+}
+
/*
* Conversion functions: convert a page and protection to a page entry,
* and a page entry and page directory to the page they refer to.
--
1.7.9.5
@@ -0,0 +1,39 @@
From a8f0308ef13a60d8103b7635fdbd54e10a621a0a Mon Sep 17 00:00:00 2001
From: Richard Weinberger <richard@nod.at>
Date: Sat, 14 Apr 2012 17:46:01 +0200
Subject: [PATCH 068/117] um: Fix __swp_type()
commit 2b76ebaa728f8a3967c52aa189261c72fe56a6f1 upstream.
The current __swp_type() function uses a too small bitshift.
Using more than one swap files causes bad pages because
the type bits clash with other page flags.
Analyzed-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
arch/um/include/asm/pgtable.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/um/include/asm/pgtable.h b/arch/um/include/asm/pgtable.h
index 0fea0ec..aa365c5 100644
--- a/arch/um/include/asm/pgtable.h
+++ b/arch/um/include/asm/pgtable.h
@@ -352,11 +352,11 @@ extern pte_t *virt_to_pte(struct mm_struct *mm, unsigned long addr);
#define update_mmu_cache(vma,address,ptep) do ; while (0)
/* Encode and de-code a swap entry */
-#define __swp_type(x) (((x).val >> 4) & 0x3f)
+#define __swp_type(x) (((x).val >> 5) & 0x1f)
#define __swp_offset(x) ((x).val >> 11)
#define __swp_entry(type, offset) \
- ((swp_entry_t) { ((type) << 4) | ((offset) << 11) })
+ ((swp_entry_t) { ((type) << 5) | ((offset) << 11) })
#define __pte_to_swp_entry(pte) \
((swp_entry_t) { pte_val(pte_mkuptodate(pte)) })
#define __swp_entry_to_pte(x) ((pte_t) { (x).val })
--
1.7.9.5
@@ -0,0 +1,41 @@
From c3ad2b1e42ce62ce0b8aa5283e5f1eee851dd3fb Mon Sep 17 00:00:00 2001
From: Shaohua Li <shli@kernel.org>
Date: Wed, 21 Mar 2012 16:34:17 -0700
Subject: [PATCH 069/117] swap: don't do discard if no discard option added
commit 052b1987faca3606109d88d96bce124851f7c4c2 upstream.
When swapon() was not passed the SWAP_FLAG_DISCARD option, sys_swapon()
will still perform a discard operation. This can cause problems if
discard is slow or buggy.
Reverse the order of the check so that a discard operation is performed
only if the sys_swapon() caller is attempting to enable discard.
Signed-off-by: Shaohua Li <shli@fusionio.com>
Reported-by: Holger Kiehl <Holger.Kiehl@dwd.de>
Tested-by: Holger Kiehl <Holger.Kiehl@dwd.de>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
mm/swapfile.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/swapfile.c b/mm/swapfile.c
index 2015a1e..d3955f2 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -2102,7 +2102,7 @@ SYSCALL_DEFINE2(swapon, const char __user *, specialfile, int, swap_flags)
p->flags |= SWP_SOLIDSTATE;
p->cluster_next = 1 + (random32() % p->highest_bit);
}
- if (discard_swap(p) == 0 && (swap_flags & SWAP_FLAG_DISCARD))
+ if ((swap_flags & SWAP_FLAG_DISCARD) && discard_swap(p) == 0)
p->flags |= SWP_DISCARDABLE;
}
--
1.7.9.5
@@ -0,0 +1,42 @@
From ae03191fbcee985e26e744fc2e3b928077e647a1 Mon Sep 17 00:00:00 2001
From: Chris Bagwell <chris@cnpbagwell.com>
Date: Wed, 26 Oct 2011 22:28:34 -0700
Subject: [PATCH 070/117] Input: wacom - relax Bamboo stylus ID check
commit c5981411f60c31f0dff6f0f98d2d3711384badaf upstream.
Bit 0x02 always means tip versus eraser. Bit 0x01 is something related
to version of stylus and different values are starting to be used.
Relaxing proximity check is required to be used with 3rd generation
Bamboo Pen and Touch tablets.
Signed-off-by: Chris Bagwell <chris@cnpbagwell.com>
Acked-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/input/tablet/wacom_wac.c | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)
diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c
index 2ee47d0..f00c70e 100644
--- a/drivers/input/tablet/wacom_wac.c
+++ b/drivers/input/tablet/wacom_wac.c
@@ -843,12 +843,7 @@ static int wacom_bpt_pen(struct wacom_wac *wacom)
unsigned char *data = wacom->data;
int prox = 0, x = 0, y = 0, p = 0, d = 0, pen = 0, btn1 = 0, btn2 = 0;
- /*
- * Similar to Graphire protocol, data[1] & 0x20 is proximity and
- * data[1] & 0x18 is tool ID. 0x30 is safety check to ignore
- * 2 unused tool ID's.
- */
- prox = (data[1] & 0x30) == 0x30;
+ prox = (data[1] & 0x20) == 0x20;
/*
* All reports shared between PEN and RUBBER tool must be
--
1.7.9.5
@@ -0,0 +1,35 @@
From 3e4b4afbb70e3054734cacd6aacf50024f27c3dd Mon Sep 17 00:00:00 2001
From: Matt Johnson <johnso87@illinois.edu>
Date: Fri, 27 Apr 2012 01:42:30 -0500
Subject: [PATCH 071/117] ahci: Detect Marvell 88SE9172 SATA controller
commit 642d89252201c4155fc3946bf9cdea409e5d263e upstream.
The Marvell 88SE9172 SATA controller (PCI ID 1b4b 917a) already worked
once it was detected, but was missing an ahci_pci_tbl entry.
Boot tested on a Gigabyte Z68X-UD3H-B3 motherboard.
Signed-off-by: Matt Johnson <johnso87@illinois.edu>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/ata/ahci.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index cf26222..fb65915 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -384,6 +384,8 @@ static const struct pci_device_id ahci_pci_tbl[] = {
.driver_data = board_ahci_yes_fbs }, /* 88se9128 */
{ PCI_DEVICE(0x1b4b, 0x9125),
.driver_data = board_ahci_yes_fbs }, /* 88se9125 */
+ { PCI_DEVICE(0x1b4b, 0x917a),
+ .driver_data = board_ahci_yes_fbs }, /* 88se9172 */
{ PCI_DEVICE(0x1b4b, 0x91a3),
.driver_data = board_ahci_yes_fbs },
--
1.7.9.5
@@ -0,0 +1,59 @@
From 06d6cd667991ac824b4e32c07ad4c382e202b920 Mon Sep 17 00:00:00 2001
From: Dima Zavin <dima@android.com>
Date: Thu, 29 Mar 2012 20:44:06 +0100
Subject: [PATCH 072/117] ARM: 7365/1: drop unused parameter from
flush_cache_user_range
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
commit 4542b6a0fa6b48d9ae6b41c1efeb618b7a221b2a upstream.
vma isn't used and flush_cache_user_range isn't a standard macro that
is used on several archs with the same prototype. In fact only unicore32
has a macro with the same name (with an identical implementation and no
in-tree users).
This is a part of a patch proposed by Dima Zavin (with Message-id:
1272439931-12795-1-git-send-email-dima@android.com) that didn't get
accepted.
Cc: Dima Zavin <dima@android.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
arch/arm/include/asm/cacheflush.h | 2 +-
arch/arm/kernel/traps.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h
index d5d8d5c..1252a26 100644
--- a/arch/arm/include/asm/cacheflush.h
+++ b/arch/arm/include/asm/cacheflush.h
@@ -249,7 +249,7 @@ extern void flush_cache_page(struct vm_area_struct *vma, unsigned long user_addr
* Harvard caches are synchronised for the user space address range.
* This is used for the ARM private sys_cacheflush system call.
*/
-#define flush_cache_user_range(vma,start,end) \
+#define flush_cache_user_range(start,end) \
__cpuc_coherent_user_range((start) & PAGE_MASK, PAGE_ALIGN(end))
/*
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index 99a5727..f363ad9 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -488,7 +488,7 @@ do_cache_op(unsigned long start, unsigned long end, int flags)
if (end > vma->vm_end)
end = vma->vm_end;
- flush_cache_user_range(vma, start, end);
+ flush_cache_user_range(start, end);
}
up_read(&mm->mmap_sem);
}
--
1.7.9.5
@@ -0,0 +1,45 @@
From bf1dbf3f545a79e9ac5ff460053283f2760f095b Mon Sep 17 00:00:00 2001
From: Dima Zavin <dima@android.com>
Date: Mon, 30 Apr 2012 10:26:14 +0100
Subject: [PATCH 073/117] ARM: 7409/1: Do not call flush_cache_user_range with
mmap_sem held
commit 435a7ef52db7d86e67a009b36cac1457f8972391 upstream.
We can't be holding the mmap_sem while calling flush_cache_user_range
because the flush can fault. If we fault on a user address, the
page fault handler will try to take mmap_sem again. Since both places
acquire the read lock, most of the time it succeeds. However, if another
thread tries to acquire the write lock on the mmap_sem (e.g. mmap) in
between the call to flush_cache_user_range and the fault, the down_read
in do_page_fault will deadlock.
[will: removed drop of vma parameter as already queued by rmk (7365/1)]
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Dima Zavin <dima@android.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
arch/arm/kernel/traps.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index f363ad9..160cb16 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -488,7 +488,9 @@ do_cache_op(unsigned long start, unsigned long end, int flags)
if (end > vma->vm_end)
end = vma->vm_end;
+ up_read(&mm->mmap_sem);
flush_cache_user_range(start, end);
+ return;
}
up_read(&mm->mmap_sem);
}
--
1.7.9.5
@@ -0,0 +1,48 @@
From 444d2b8e5c56b431d2aa79db0c1742c6159b661a Mon Sep 17 00:00:00 2001
From: Josh Boyer <jwboyer@redhat.com>
Date: Wed, 2 Nov 2011 14:32:00 -0400
Subject: [PATCH 074/117] sony-laptop: Enable keyboard backlight by default
commit 6fe6ae56a7cebaebc2e6daa11c423e4692f9b592 upstream.
When the keyboard backlight support was originally added, the commit said
to default it to on with a 10 second timeout. That actually wasn't the
case, as the default value is commented out for the kbd_backlight parameter.
Because it is a static variable, it gets set to 0 by default without some
other form of initialization.
However, it seems the function to set the value wasn't actually called
immediately, so whatever state the keyboard was in initially would remain.
Then commit df410d522410e67660 was introduced during the 2.6.39 timeframe to
immediately set whatever value was present (as well as attempt to
restore/reset the state on module removal or resume). That seems to have
now forced the light off immediately when the module is loaded unless
the option kbd_backlight=1 is specified.
Let's enable it by default again (for the first time). This should solve
https://bugzilla.redhat.com/show_bug.cgi?id=728478
Signed-off-by: Josh Boyer <jwboyer@redhat.com>
Acked-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/platform/x86/sony-laptop.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c
index c006dee..40c4705 100644
--- a/drivers/platform/x86/sony-laptop.c
+++ b/drivers/platform/x86/sony-laptop.c
@@ -127,7 +127,7 @@ MODULE_PARM_DESC(minor,
"default is -1 (automatic)");
#endif
-static int kbd_backlight; /* = 1 */
+static int kbd_backlight = 1;
module_param(kbd_backlight, int, 0444);
MODULE_PARM_DESC(kbd_backlight,
"set this to 0 to disable keyboard backlight, "
--
1.7.9.5
@@ -0,0 +1,54 @@
From b277e4c19f3668e1a58e03d8933a3c6cd612c5e2 Mon Sep 17 00:00:00 2001
From: Sasha Levin <levinsasha928@gmail.com>
Date: Sat, 5 May 2012 17:06:35 +0200
Subject: [PATCH 075/117] init: don't try mounting device as nfs root unless
type fully matches
commit 377485f6244af255b04d662cf19cddbbc4ae4310 upstream.
Currently, we'll try mounting any device who's major device number is
UNNAMED_MAJOR as NFS root. This would happen for non-NFS devices as
well (such as 9p devices) but it wouldn't cause any issues since
mounting the device as NFS would fail quickly and the code proceeded to
doing the proper mount:
[ 101.522716] VFS: Unable to mount root fs via NFS, trying floppy.
[ 101.534499] VFS: Mounted root (9p filesystem) on device 0:18.
Commit 6829a048102a ("NFS: Retry mounting NFSROOT") introduced retries
when mounting NFS root, which means that now we don't immediately fail
and instead it takes an additional 90+ seconds until we stop retrying,
which has revealed the issue this patch fixes.
This meant that it would take an additional 90 seconds to boot when
we're not using a device type which gets detected in order before NFS.
This patch modifies the NFS type check to require device type to be
'Root_NFS' instead of requiring the device to have an UNNAMED_MAJOR
major. This makes boot process cleaner since we now won't go through
the NFS mounting code at all when the device isn't an NFS root
("/dev/nfs").
Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
init/do_mounts.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/init/do_mounts.c b/init/do_mounts.c
index db6e5ee..d6c229f 100644
--- a/init/do_mounts.c
+++ b/init/do_mounts.c
@@ -470,7 +470,7 @@ void __init change_floppy(char *fmt, ...)
void __init mount_root(void)
{
#ifdef CONFIG_ROOT_NFS
- if (MAJOR(ROOT_DEV) == UNNAMED_MAJOR) {
+ if (ROOT_DEV == Root_NFS) {
if (mount_nfs_root())
return;
--
1.7.9.5
@@ -0,0 +1,40 @@
From 0b0f028ae418e6b772241ed68bee5f2d0c6bcb3a Mon Sep 17 00:00:00 2001
From: Sha Zhengju <handai.szj@taobao.com>
Date: Thu, 10 May 2012 13:01:45 -0700
Subject: [PATCH 076/117] memcg: free spare array to avoid memory leak
commit 8c7577637ca31385e92769a77e2ab5b428e8b99c upstream.
When the last event is unregistered, there is no need to keep the spare
array anymore. So free it to avoid memory leak.
Signed-off-by: Sha Zhengju <handai.szj@taobao.com>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Reviewed-by: Kirill A. Shutemov <kirill@shutemov.name>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
mm/memcontrol.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 778554f..c8425b1 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -4549,6 +4549,12 @@ static void mem_cgroup_usage_unregister_event(struct cgroup *cgrp,
swap_buffers:
/* Swap primary and spare array */
thresholds->spare = thresholds->primary;
+ /* If all events are unregistered, free the spare array */
+ if (!new) {
+ kfree(thresholds->spare);
+ thresholds->spare = NULL;
+ }
+
rcu_assign_pointer(thresholds->primary, new);
/* To be sure that nobody uses thresholds */
--
1.7.9.5
@@ -0,0 +1,107 @@
From 2ed9e3e61cd65b3a43998d48846744be1b263394 Mon Sep 17 00:00:00 2001
From: Jan Kiszka <jan.kiszka@siemens.com>
Date: Thu, 10 May 2012 10:04:36 -0300
Subject: [PATCH 077/117] compat: Fix RT signal mask corruption via
sigprocmask
commit b7dafa0ef3145c31d7753be0a08b3cbda51f0209 upstream.
compat_sys_sigprocmask reads a smaller signal mask from userspace than
sigprogmask accepts for setting. So the high word of blocked.sig[0]
will be cleared, releasing any potentially blocked RT signal.
This was discovered via userspace code that relies on get/setcontext.
glibc's i386 versions of those functions use sigprogmask instead of
rt_sigprogmask to save/restore signal mask and caused RT signal
unblocking this way.
As suggested by Linus, this replaces the sys_sigprocmask based compat
version with one that open-codes the required logic, including the merge
of the existing blocked set with the new one provided on SIG_SETMASK.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
kernel/compat.c | 63 ++++++++++++++++++++++++++++++++++++++++---------------
1 file changed, 46 insertions(+), 17 deletions(-)
diff --git a/kernel/compat.c b/kernel/compat.c
index f346ced..a6d0649 100644
--- a/kernel/compat.c
+++ b/kernel/compat.c
@@ -320,25 +320,54 @@ asmlinkage long compat_sys_sigpending(compat_old_sigset_t __user *set)
#ifdef __ARCH_WANT_SYS_SIGPROCMASK
-asmlinkage long compat_sys_sigprocmask(int how, compat_old_sigset_t __user *set,
- compat_old_sigset_t __user *oset)
+/*
+ * sys_sigprocmask SIG_SETMASK sets the first (compat) word of the
+ * blocked set of signals to the supplied signal set
+ */
+static inline void compat_sig_setmask(sigset_t *blocked, compat_sigset_word set)
{
- old_sigset_t s;
- long ret;
- mm_segment_t old_fs;
+ memcpy(blocked->sig, &set, sizeof(set));
+}
- if (set && get_user(s, set))
- return -EFAULT;
- old_fs = get_fs();
- set_fs(KERNEL_DS);
- ret = sys_sigprocmask(how,
- set ? (old_sigset_t __user *) &s : NULL,
- oset ? (old_sigset_t __user *) &s : NULL);
- set_fs(old_fs);
- if (ret == 0)
- if (oset)
- ret = put_user(s, oset);
- return ret;
+asmlinkage long compat_sys_sigprocmask(int how,
+ compat_old_sigset_t __user *nset,
+ compat_old_sigset_t __user *oset)
+{
+ old_sigset_t old_set, new_set;
+ sigset_t new_blocked;
+
+ old_set = current->blocked.sig[0];
+
+ if (nset) {
+ if (get_user(new_set, nset))
+ return -EFAULT;
+ new_set &= ~(sigmask(SIGKILL) | sigmask(SIGSTOP));
+
+ new_blocked = current->blocked;
+
+ switch (how) {
+ case SIG_BLOCK:
+ sigaddsetmask(&new_blocked, new_set);
+ break;
+ case SIG_UNBLOCK:
+ sigdelsetmask(&new_blocked, new_set);
+ break;
+ case SIG_SETMASK:
+ compat_sig_setmask(&new_blocked, new_set);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ set_current_blocked(&new_blocked);
+ }
+
+ if (oset) {
+ if (put_user(old_set, oset))
+ return -EFAULT;
+ }
+
+ return 0;
}
#endif
--
1.7.9.5
@@ -0,0 +1,43 @@
From c95c67d82938539844654f8d12a831e06ddae45a Mon Sep 17 00:00:00 2001
From: Jan Kara <jack@suse.cz>
Date: Thu, 8 Dec 2011 21:13:46 +0100
Subject: [PATCH 078/117] ext3: Fix error handling on inode bitmap corruption
commit 1415dd8705394399d59a3df1ab48d149e1e41e77 upstream.
When insert_inode_locked() fails in ext3_new_inode() it most likely
means inode bitmap got corrupted and we allocated again inode which
is already in use. Also doing unlock_new_inode() during error recovery
is wrong since inode does not have I_NEW set. Fix the problem by jumping
to fail: (instead of fail_drop:) which declares filesystem error and
does not call unlock_new_inode().
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
fs/ext3/ialloc.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/fs/ext3/ialloc.c b/fs/ext3/ialloc.c
index 5c866e0..adae962 100644
--- a/fs/ext3/ialloc.c
+++ b/fs/ext3/ialloc.c
@@ -525,8 +525,12 @@ got:
if (IS_DIRSYNC(inode))
handle->h_sync = 1;
if (insert_inode_locked(inode) < 0) {
- err = -EINVAL;
- goto fail_drop;
+ /*
+ * Likely a bitmap corruption causing inode to be allocated
+ * twice.
+ */
+ err = -EIO;
+ goto fail;
}
spin_lock(&sbi->s_next_gen_lock);
inode->i_generation = sbi->s_next_generation++;
--
1.7.9.5
@@ -0,0 +1,42 @@
From 92d372ef4ce9cea8d08163f727e4eeac7e9a2472 Mon Sep 17 00:00:00 2001
From: Jan Kara <jack@suse.cz>
Date: Sun, 18 Dec 2011 17:37:02 -0500
Subject: [PATCH 079/117] ext4: fix error handling on inode bitmap corruption
commit acd6ad83517639e8f09a8c5525b1dccd81cd2a10 upstream.
When insert_inode_locked() fails in ext4_new_inode() it most likely means inode
bitmap got corrupted and we allocated again inode which is already in use. Also
doing unlock_new_inode() during error recovery is wrong since the inode does
not have I_NEW set. Fix the problem by jumping to fail: (instead of fail_drop:)
which declares filesystem error and does not call unlock_new_inode().
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
fs/ext4/ialloc.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index 00beb4f..8fb6844 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -885,8 +885,12 @@ got:
if (IS_DIRSYNC(inode))
ext4_handle_sync(handle);
if (insert_inode_locked(inode) < 0) {
- err = -EINVAL;
- goto fail_drop;
+ /*
+ * Likely a bitmap corruption causing inode to be allocated
+ * twice.
+ */
+ err = -EIO;
+ goto fail;
}
spin_lock(&sbi->s_next_gen_lock);
inode->i_generation = sbi->s_next_generation++;
--
1.7.9.5
@@ -0,0 +1,42 @@
From 1155d70b0cfab4cef0edb62753bc9b5053d6fa8e Mon Sep 17 00:00:00 2001
From: Lan Tianyu <tianyu.lan@intel.com>
Date: Sat, 21 Jan 2012 09:23:56 +0800
Subject: [PATCH 080/117] ACPI / PM: Add Sony Vaio VPCCW29FX to nonvs
blacklist.
commit 93f770846e8dedc5d9117bd4ad9d7efd18420627 upstream.
Sony Vaio VPCCW29FX does not resume correctly without
acpi_sleep=nonvs, so add it to the ACPI sleep blacklist.
https://bugzilla.kernel.org/show_bug.cgi?id=34722
Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/acpi/sleep.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index 0a7ed69..ca191ff 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -438,6 +438,14 @@ static struct dmi_system_id __initdata acpisleep_dmi_table[] = {
},
{
.callback = init_nvs_nosave,
+ .ident = "Sony Vaio VPCCW29FX",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "VPCCW29FX"),
+ },
+ },
+ {
+ .callback = init_nvs_nosave,
.ident = "Averatec AV1020-ED2",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "AVERATEC"),
--
1.7.9.5
@@ -0,0 +1,42 @@
From a9b96c2354127a1d9d0401564b6359403aecdb66 Mon Sep 17 00:00:00 2001
From: "Stephen M. Cameron" <scameron@beardog.cce.hp.com>
Date: Mon, 28 Nov 2011 10:15:20 -0600
Subject: [PATCH 081/117] hpsa: Add IRQF_SHARED back in for the non-MSI(X)
interrupt handler
commit 45bcf018d1a4779d592764ef57517c92589d55d7 upstream.
IRQF_SHARED is required for older controllers that don't support MSI(X)
and which may end up sharing an interrupt. All the controllers hpsa
normally supports have MSI(X) capability, but older controllers may be
encountered via the hpsa_allow_any=1 module parameter.
Also remove deprecated IRQF_DISABLED.
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/scsi/hpsa.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index dc9dea3..b4d2c86 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -4068,10 +4068,10 @@ static int hpsa_request_irq(struct ctlr_info *h,
if (h->msix_vector || h->msi_vector)
rc = request_irq(h->intr[h->intr_mode], msixhandler,
- IRQF_DISABLED, h->devname, h);
+ 0, h->devname, h);
else
rc = request_irq(h->intr[h->intr_mode], intxhandler,
- IRQF_DISABLED, h->devname, h);
+ IRQF_SHARED, h->devname, h);
if (rc) {
dev_err(&h->pdev->dev, "unable to get irq %d for %s\n",
h->intr[h->intr_mode], h->devname);
--
1.7.9.5
@@ -0,0 +1,42 @@
From ab66f47089f09bceebe3bee38d5e76e08ec748d0 Mon Sep 17 00:00:00 2001
From: Kazuya Mio <k-mio@sx.jp.nec.com>
Date: Thu, 1 Dec 2011 16:51:07 +0900
Subject: [PATCH 082/117] wake up s_wait_unfrozen when ->freeze_fs fails
commit e1616300a20c80396109c1cf013ba9a36055a3da upstream.
dd slept infinitely when fsfeeze failed because of EIO.
To fix this problem, if ->freeze_fs fails, freeze_super() wakes up
the tasks waiting for the filesystem to become unfrozen.
When s_frozen isn't SB_UNFROZEN in __generic_file_aio_write(),
the function sleeps until FITHAW ioctl wakes up s_wait_unfrozen.
However, if ->freeze_fs fails, s_frozen is set to SB_UNFROZEN and then
freeze_super() returns an error number. In this case, FITHAW ioctl returns
EINVAL because s_frozen is already SB_UNFROZEN. There is no way to wake up
s_wait_unfrozen, so __generic_file_aio_write() sleeps infinitely.
Signed-off-by: Kazuya Mio <k-mio@sx.jp.nec.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
fs/super.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/fs/super.c b/fs/super.c
index afd0f1a..2a698f6 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -1166,6 +1166,8 @@ int freeze_super(struct super_block *sb)
printk(KERN_ERR
"VFS:Filesystem freeze failed\n");
sb->s_frozen = SB_UNFROZEN;
+ smp_wmb();
+ wake_up(&sb->s_wait_unfrozen);
deactivate_locked_super(sb);
return ret;
}
--
1.7.9.5
@@ -0,0 +1,35 @@
From 3f974a0efbf9480d3a540a029f5a98da92ce772e Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Mon, 30 Apr 2012 17:36:21 +0300
Subject: [PATCH 083/117] cifs: fix revalidation test in cifs_llseek()
commit 48a5730e5b71201e226ff06e245bf308feba5f10 upstream.
This test is always true so it means we revalidate the length every
time, which generates more network traffic. When it is SEEK_SET or
SEEK_CUR, then we don't need to revalidate.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
fs/cifs/cifsfs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index b4c2c99..b1451af 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -703,7 +703,7 @@ static loff_t cifs_llseek(struct file *file, loff_t offset, int origin)
* origin == SEEK_END || SEEK_DATA || SEEK_HOLE => we must revalidate
* the cached file length
*/
- if (origin != SEEK_SET || origin != SEEK_CUR) {
+ if (origin != SEEK_SET && origin != SEEK_CUR) {
int rc;
struct inode *inode = file->f_path.dentry->d_inode;
--
1.7.9.5
@@ -0,0 +1,123 @@
From 69fa22d4b635612c73cb0427447c5916e18a217e Mon Sep 17 00:00:00 2001
From: Jeff Mahoney <jeffm@suse.com>
Date: Wed, 25 Apr 2012 14:32:09 +0000
Subject: [PATCH 084/117] dl2k: Clean up rio_ioctl
commit 1bb57e940e1958e40d51f2078f50c3a96a9b2d75 upstream.
The dl2k driver's rio_ioctl call has a few issues:
- No permissions checking
- Implements SIOCGMIIREG and SIOCGMIIREG using the SIOCDEVPRIVATE numbers
- Has a few ioctls that may have been used for debugging at one point
but have no place in the kernel proper.
This patch removes all but the MII ioctls, renumbers them to use the
standard ones, and adds the proper permission check for SIOCSMIIREG.
We can also get rid of the dl2k-specific struct mii_data in favor of
the generic struct mii_ioctl_data.
Since we have the phyid on hand, we can add the SIOCGMIIPHY ioctl too.
Most of the MII code for the driver could probably be converted to use
the generic MII library but I don't have a device to test the results.
Reported-by: Stephan Mueller <stephan.mueller@atsec.com>
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/net/ethernet/dlink/dl2k.c | 52 +++++++------------------------------
drivers/net/ethernet/dlink/dl2k.h | 7 -----
2 files changed, 9 insertions(+), 50 deletions(-)
diff --git a/drivers/net/ethernet/dlink/dl2k.c b/drivers/net/ethernet/dlink/dl2k.c
index b2dc2c8..2e09edb 100644
--- a/drivers/net/ethernet/dlink/dl2k.c
+++ b/drivers/net/ethernet/dlink/dl2k.c
@@ -1259,55 +1259,21 @@ rio_ioctl (struct net_device *dev, struct ifreq *rq, int cmd)
{
int phy_addr;
struct netdev_private *np = netdev_priv(dev);
- struct mii_data *miidata = (struct mii_data *) &rq->ifr_ifru;
-
- struct netdev_desc *desc;
- int i;
+ struct mii_ioctl_data *miidata = if_mii(rq);
phy_addr = np->phy_addr;
switch (cmd) {
- case SIOCDEVPRIVATE:
- break;
-
- case SIOCDEVPRIVATE + 1:
- miidata->out_value = mii_read (dev, phy_addr, miidata->reg_num);
+ case SIOCGMIIPHY:
+ miidata->phy_id = phy_addr;
break;
- case SIOCDEVPRIVATE + 2:
- mii_write (dev, phy_addr, miidata->reg_num, miidata->in_value);
+ case SIOCGMIIREG:
+ miidata->val_out = mii_read (dev, phy_addr, miidata->reg_num);
break;
- case SIOCDEVPRIVATE + 3:
- break;
- case SIOCDEVPRIVATE + 4:
- break;
- case SIOCDEVPRIVATE + 5:
- netif_stop_queue (dev);
+ case SIOCSMIIREG:
+ if (!capable(CAP_NET_ADMIN))
+ return -EPERM;
+ mii_write (dev, phy_addr, miidata->reg_num, miidata->val_in);
break;
- case SIOCDEVPRIVATE + 6:
- netif_wake_queue (dev);
- break;
- case SIOCDEVPRIVATE + 7:
- printk
- ("tx_full=%x cur_tx=%lx old_tx=%lx cur_rx=%lx old_rx=%lx\n",
- netif_queue_stopped(dev), np->cur_tx, np->old_tx, np->cur_rx,
- np->old_rx);
- break;
- case SIOCDEVPRIVATE + 8:
- printk("TX ring:\n");
- for (i = 0; i < TX_RING_SIZE; i++) {
- desc = &np->tx_ring[i];
- printk
- ("%02x:cur:%08x next:%08x status:%08x frag1:%08x frag0:%08x",
- i,
- (u32) (np->tx_ring_dma + i * sizeof (*desc)),
- (u32)le64_to_cpu(desc->next_desc),
- (u32)le64_to_cpu(desc->status),
- (u32)(le64_to_cpu(desc->fraginfo) >> 32),
- (u32)le64_to_cpu(desc->fraginfo));
- printk ("\n");
- }
- printk ("\n");
- break;
-
default:
return -EOPNOTSUPP;
}
diff --git a/drivers/net/ethernet/dlink/dl2k.h b/drivers/net/ethernet/dlink/dl2k.h
index ba0adca..30c2da3 100644
--- a/drivers/net/ethernet/dlink/dl2k.h
+++ b/drivers/net/ethernet/dlink/dl2k.h
@@ -365,13 +365,6 @@ struct ioctl_data {
char *data;
};
-struct mii_data {
- __u16 reserved;
- __u16 reg_num;
- __u16 in_value;
- __u16 out_value;
-};
-
/* The Rx and Tx buffer descriptors. */
struct netdev_desc {
__le64 next_desc;
--
1.7.9.5
@@ -0,0 +1,41 @@
From ad7129ee930fa9b9efd04490a4ddcd5d5a9039a9 Mon Sep 17 00:00:00 2001
From: Danny Kukawka <danny.kukawka@bisect.de>
Date: Tue, 24 Jan 2012 16:44:42 +0100
Subject: [PATCH 085/117] OMAPDSS: VENC: fix NULL pointer dereference in DSS2
VENC sysfs debug attr on OMAP4
commit cc1d3e032df53d83d0ca4d537d8eb67eb5b3e808 upstream.
Commit ba02fa37de80bea10d706f39f076dd848348320a disabled the
venc driver registration on OMAP4. Since the driver never gets
probed/initialised your get a dereferenceed NULL pointer if you
try to get info from /sys/kernel/debug/omapdss/venc
Return info message about disabled venc if venc_dump_regs() gets called.
Signed-off-by: Danny Kukawka <danny.kukawka@bisect.de>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/video/omap2/dss/venc.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/video/omap2/dss/venc.c b/drivers/video/omap2/dss/venc.c
index 7533458..7152b53 100644
--- a/drivers/video/omap2/dss/venc.c
+++ b/drivers/video/omap2/dss/venc.c
@@ -679,6 +679,11 @@ void venc_dump_regs(struct seq_file *s)
{
#define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, venc_read_reg(r))
+ if (cpu_is_omap44xx()) {
+ seq_printf(s, "VENC currently disabled on OMAP44xx\n");
+ return;
+ }
+
if (venc_runtime_get())
return;
--
1.7.9.5
@@ -0,0 +1,36 @@
From 64affee5c2afb0dff67a4c3669e3c44c98575809 Mon Sep 17 00:00:00 2001
From: Tomoya MORINAGA <tomoya.rohm@gmail.com>
Date: Mon, 26 Mar 2012 14:55:25 +0900
Subject: [PATCH 086/117] i2c-eg20t: change timeout value 50msec to 1000msec
commit 8a52f9f347da721b199b7f9dcc0168bbe7d0baae upstream.
Currently, during i2c works alone, wait-event timeout is not occurred.
However, as CPU load increases, timeout occurs frequently.
So, I modified like this patch.
Modifying like this patch, I've never seen the timeout event with high
load test.
Signed-off-by: Tomoya MORINAGA <tomoya.rohm@gmail.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/i2c/busses/i2c-eg20t.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/i2c/busses/i2c-eg20t.c b/drivers/i2c/busses/i2c-eg20t.c
index 730215e..2cda65bf 100644
--- a/drivers/i2c/busses/i2c-eg20t.c
+++ b/drivers/i2c/busses/i2c-eg20t.c
@@ -315,7 +315,7 @@ static s32 pch_i2c_wait_for_xfer_complete(struct i2c_algo_pch_data *adap)
{
long ret;
ret = wait_event_timeout(pch_event,
- (adap->pch_event_flag != 0), msecs_to_jiffies(50));
+ (adap->pch_event_flag != 0), msecs_to_jiffies(1000));
if (ret == 0) {
pch_err(adap, "timeout: %x\n", adap->pch_event_flag);
--
1.7.9.5
@@ -0,0 +1,100 @@
From b8fd6d0d306fe861b9a5d692b5d14c169a14bc7e Mon Sep 17 00:00:00 2001
From: Ben Widawsky <ben@bwidawsk.net>
Date: Sat, 14 Apr 2012 18:41:32 -0700
Subject: [PATCH 087/117] drm/i915: [GEN7] Use HW scheduler for fixed function
shaders
commit a1e969e0332de7a430e62822cee8f2ec8d83cd7c upstream.
This originally started as a patch from Bernard as a way of simply
setting the VS scheduler. After submitting the RFC patch, we decided to
also modify the DS scheduler. To be most explicit, I've made the patch
explicitly set all scheduler modes, and included the defines for other
modes (in case someone feels frisky later).
The rest of the story gets a bit weird. The first version of the patch
showed an almost unbelievable performance improvement. Since rebasing my
branch it appears the performance improvement has gone, unfortunately.
But setting these bits seem to be the right thing to do given that the
docs describe corruption that can occur with the default settings.
In summary, I am seeing no more perf improvements (or regressions) in my
limited testing, but we believe this should be set to prevent rendering
corruption, therefore cc stable.
v1: Clear bit 4 also (Ken + Eugeni)
Do a full clear + set of the bits we want (Me).
Cc: Bernard Kilarski <bernard.r.kilarski@intel.com>
Reviewed-by (RFC): Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Ben Widawsky <benjamin.widawsky@intel.com>
Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/gpu/drm/i915/i915_reg.h | 15 +++++++++++++++
drivers/gpu/drm/i915/intel_display.c | 14 ++++++++++++++
2 files changed, 29 insertions(+)
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index cbe5a88..a1d53b6 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -570,6 +570,21 @@
#define GEN6_BSD_RNCID 0x12198
+#define GEN7_FF_THREAD_MODE 0x20a0
+#define GEN7_FF_SCHED_MASK 0x0077070
+#define GEN7_FF_TS_SCHED_HS1 (0x5<<16)
+#define GEN7_FF_TS_SCHED_HS0 (0x3<<16)
+#define GEN7_FF_TS_SCHED_LOAD_BALANCE (0x1<<16)
+#define GEN7_FF_TS_SCHED_HW (0x0<<16) /* Default */
+#define GEN7_FF_VS_SCHED_HS1 (0x5<<12)
+#define GEN7_FF_VS_SCHED_HS0 (0x3<<12)
+#define GEN7_FF_VS_SCHED_LOAD_BALANCE (0x1<<12) /* Default */
+#define GEN7_FF_VS_SCHED_HW (0x0<<12)
+#define GEN7_FF_DS_SCHED_HS1 (0x5<<4)
+#define GEN7_FF_DS_SCHED_HS0 (0x3<<4)
+#define GEN7_FF_DS_SCHED_LOAD_BALANCE (0x1<<4) /* Default */
+#define GEN7_FF_DS_SCHED_HW (0x0<<4)
+
/*
* Framebuffer compression (915+ only)
*/
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 390768f..68fa8f8 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -8245,6 +8245,18 @@ static void gen6_init_clock_gating(struct drm_device *dev)
}
}
+static void gen7_setup_fixed_func_scheduler(struct drm_i915_private *dev_priv)
+{
+ uint32_t reg = I915_READ(GEN7_FF_THREAD_MODE);
+
+ reg &= ~GEN7_FF_SCHED_MASK;
+ reg |= GEN7_FF_TS_SCHED_HW;
+ reg |= GEN7_FF_VS_SCHED_HW;
+ reg |= GEN7_FF_DS_SCHED_HW;
+
+ I915_WRITE(GEN7_FF_THREAD_MODE, reg);
+}
+
static void ivybridge_init_clock_gating(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
@@ -8285,6 +8297,8 @@ static void ivybridge_init_clock_gating(struct drm_device *dev)
DISPPLANE_TRICKLE_FEED_DISABLE);
intel_flush_display_plane(dev_priv, pipe);
}
+
+ gen7_setup_fixed_func_scheduler(dev_priv);
}
static void g4x_init_clock_gating(struct drm_device *dev)
--
1.7.9.5
@@ -0,0 +1,99 @@
From 418111eaa285eb1418ef4634eb2a24e955d0c0a4 Mon Sep 17 00:00:00 2001
From: Nicolas Pitre <nicolas.pitre@linaro.org>
Date: Mon, 16 Apr 2012 19:16:54 -0400
Subject: [PATCH 088/117] mmc: sdio: avoid spurious calls to interrupt
handlers
commit bbbc4c4d8c5face097d695f9bf3a39647ba6b7e7 upstream.
Commit 06e8935feb ("optimized SDIO IRQ handling for single irq")
introduced some spurious calls to SDIO function interrupt handlers,
such as when the SDIO IRQ thread is started, or the safety check
performed upon a system resume. Let's add a flag to perform the
optimization only when a real interrupt is signaled by the host
driver and we know there is no point confirming it.
Reported-by: Sujit Reddy Thumma <sthumma@codeaurora.org>
Signed-off-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/mmc/core/sdio.c | 2 +-
drivers/mmc/core/sdio_irq.c | 11 +++++++----
include/linux/mmc/host.h | 2 ++
3 files changed, 10 insertions(+), 5 deletions(-)
diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c
index 3ab565e..558a495 100644
--- a/drivers/mmc/core/sdio.c
+++ b/drivers/mmc/core/sdio.c
@@ -663,7 +663,7 @@ static int mmc_sdio_resume(struct mmc_host *host)
}
if (!err && host->sdio_irqs)
- mmc_signal_sdio_irq(host);
+ wake_up_process(host->sdio_irq_thread);
mmc_release_host(host);
/*
diff --git a/drivers/mmc/core/sdio_irq.c b/drivers/mmc/core/sdio_irq.c
index 68f81b9..9dd0462 100644
--- a/drivers/mmc/core/sdio_irq.c
+++ b/drivers/mmc/core/sdio_irq.c
@@ -28,18 +28,20 @@
#include "sdio_ops.h"
-static int process_sdio_pending_irqs(struct mmc_card *card)
+static int process_sdio_pending_irqs(struct mmc_host *host)
{
+ struct mmc_card *card = host->card;
int i, ret, count;
unsigned char pending;
struct sdio_func *func;
/*
* Optimization, if there is only 1 function interrupt registered
- * call irq handler directly
+ * and we know an IRQ was signaled then call irq handler directly.
+ * Otherwise do the full probe.
*/
func = card->sdio_single_irq;
- if (func) {
+ if (func && host->sdio_irq_pending) {
func->irq_handler(func);
return 1;
}
@@ -116,7 +118,8 @@ static int sdio_irq_thread(void *_host)
ret = __mmc_claim_host(host, &host->sdio_irq_thread_abort);
if (ret)
break;
- ret = process_sdio_pending_irqs(host->card);
+ ret = process_sdio_pending_irqs(host);
+ host->sdio_irq_pending = false;
mmc_release_host(host);
/*
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h
index a3ac9c4..deb6282 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h
@@ -303,6 +303,7 @@ struct mmc_host {
unsigned int sdio_irqs;
struct task_struct *sdio_irq_thread;
+ bool sdio_irq_pending;
atomic_t sdio_irq_thread_abort;
mmc_pm_flag_t pm_flags; /* requested pm features */
@@ -356,6 +357,7 @@ extern int mmc_cache_ctrl(struct mmc_host *, u8);
static inline void mmc_signal_sdio_irq(struct mmc_host *host)
{
host->ops->enable_sdio_irq(host, 0);
+ host->sdio_irq_pending = true;
wake_up_process(host->sdio_irq_thread);
}
--
1.7.9.5
@@ -0,0 +1,31 @@
From f408079974e4190a820716d82a01af3f3201cd56 Mon Sep 17 00:00:00 2001
From: Michael Krufky <mkrufky@linuxtv.org>
Date: Thu, 22 Mar 2012 13:55:05 -0300
Subject: [PATCH 089/117] smsusb: add autodetection support for USB ID
2040:c0a0
commit 4d1b58b84472d1d300a66e1c5fd765b21e74ba15 upstream.
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/media/dvb/siano/smsusb.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/media/dvb/siano/smsusb.c b/drivers/media/dvb/siano/smsusb.c
index 51c7121..b7d1e3e 100644
--- a/drivers/media/dvb/siano/smsusb.c
+++ b/drivers/media/dvb/siano/smsusb.c
@@ -542,6 +542,8 @@ static const struct usb_device_id smsusb_id_table[] __devinitconst = {
.driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
{ USB_DEVICE(0x2040, 0xc090),
.driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
+ { USB_DEVICE(0x2040, 0xc0a0),
+ .driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM },
{ } /* Terminating entry */
};
--
1.7.9.5
@@ -0,0 +1,34 @@
From 1565ef649160b0fb7c0911ce172ecc475db2741e Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Date: Wed, 21 Mar 2012 09:50:36 -0300
Subject: [PATCH 090/117] uvcvideo: Fix ENUMINPUT handling
commit 31c5f0c5e25ed71eeced170f113bb590f2f1f6f3 upstream.
Properly validate the user-supplied index against the number of inputs.
The code used the pin local variable instead of the index by mistake.
Reported-by: Jozef Vesely <vesely@gjh.sk>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/media/video/uvc/uvc_v4l2.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/video/uvc/uvc_v4l2.c b/drivers/media/video/uvc/uvc_v4l2.c
index cf7788f..1030479 100644
--- a/drivers/media/video/uvc/uvc_v4l2.c
+++ b/drivers/media/video/uvc/uvc_v4l2.c
@@ -689,7 +689,7 @@ static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg)
break;
}
pin = iterm->id;
- } else if (pin < selector->bNrInPins) {
+ } else if (index < selector->bNrInPins) {
pin = selector->baSourceID[index];
list_for_each_entry(iterm, &chain->entities, chain) {
if (!UVC_ENTITY_IS_ITERM(iterm))
--
1.7.9.5
@@ -0,0 +1,63 @@
From e7fcb3c81686f5853ff08909c0f580536291be51 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Wed, 9 May 2012 21:45:43 +0100
Subject: [PATCH 091/117] drm/i915: Avoid a double-read of PCH_IIR during
interrupt handling
commit 9adab8b5a7fde248504f484e197589f3e3c922e2 upstream.
Currently the code re-reads PCH_IIR during the hotplug interrupt
processing. Not only is this a wasted read, but introduces a potential
for handling a spurious interrupt as we then may not clear all the
interrupts processed (since the re-read IIR may contains more interrupts
asserted than we clear using the result of the original read).
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/gpu/drm/i915/i915_irq.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index d47a53b..d3820c2 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -424,14 +424,11 @@ static void gen6_pm_rps_work(struct work_struct *work)
mutex_unlock(&dev_priv->dev->struct_mutex);
}
-static void pch_irq_handler(struct drm_device *dev)
+static void pch_irq_handler(struct drm_device *dev, u32 pch_iir)
{
drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
- u32 pch_iir;
int pipe;
- pch_iir = I915_READ(SDEIIR);
-
if (pch_iir & SDE_AUDIO_POWER_MASK)
DRM_DEBUG_DRIVER("PCH audio power change on port %d\n",
(pch_iir & SDE_AUDIO_POWER_MASK) >>
@@ -529,7 +526,7 @@ static irqreturn_t ivybridge_irq_handler(DRM_IRQ_ARGS)
if (de_iir & DE_PCH_EVENT_IVB) {
if (pch_iir & SDE_HOTPLUG_MASK_CPT)
queue_work(dev_priv->wq, &dev_priv->hotplug_work);
- pch_irq_handler(dev);
+ pch_irq_handler(dev, pch_iir);
}
if (pm_iir & GEN6_PM_DEFERRED_EVENTS) {
@@ -629,7 +626,7 @@ static irqreturn_t ironlake_irq_handler(DRM_IRQ_ARGS)
if (de_iir & DE_PCH_EVENT) {
if (pch_iir & hotplug_mask)
queue_work(dev_priv->wq, &dev_priv->hotplug_work);
- pch_irq_handler(dev);
+ pch_irq_handler(dev, pch_iir);
}
if (de_iir & DE_PCU_EVENT) {
--
1.7.9.5
@@ -0,0 +1,35 @@
From 6f8ba55029ac1a15f55de85122401036a08d6b89 Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Sun, 6 May 2012 16:01:05 -0500
Subject: [PATCH 092/117] b43legacy: Fix error due to MMIO access with SSB
unpowered
commit 8f4b20388fa77226a3605627a33a23f90d559e50 upstream.
There is a dummy read of a PCI MMIO register that occurs before the SSB bus
has been powered, which is an error. This bug has not been seen earlier,
but was apparently exposed when udev was updated to version 182.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/net/wireless/b43legacy/main.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/net/wireless/b43legacy/main.c b/drivers/net/wireless/b43legacy/main.c
index 20f0243..c5ce163 100644
--- a/drivers/net/wireless/b43legacy/main.c
+++ b/drivers/net/wireless/b43legacy/main.c
@@ -1564,8 +1564,6 @@ static int b43legacy_request_firmware(struct b43legacy_wldev *dev)
const char *filename;
int err;
- /* do dummy read */
- ssb_read32(dev->dev, SSB_TMSHIGH);
if (!fw->ucode) {
if (rev == 2)
filename = "ucode2";
--
1.7.9.5
@@ -0,0 +1,45 @@
From 3a36f1d3f5cc6f221848df7c4cdc1269fc2085e9 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Thu, 3 May 2012 12:22:06 +0200
Subject: [PATCH 093/117] gpio: mpc8xxx: Prevent NULL pointer deref in demux
handler
commit d6de85e85edcc38c9edcde45a0a568818fcddc13 upstream.
commit cfadd838(powerpc/8xxx: Fix interrupt handling in MPC8xxx GPIO
driver) added an unconditional call of chip->irq_eoi() to the demux
handler.
This leads to a NULL pointer derefernce on MPC512x platforms which use
this driver as well.
Make it conditional.
Reported-by: Thomas Wucher <thwucher@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Felix Radensky <felix@embedded-sol.com>
Cc: Kumar Gala <galak@kernel.crashing.org>
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/gpio/gpio-mpc8xxx.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpio/gpio-mpc8xxx.c b/drivers/gpio/gpio-mpc8xxx.c
index 5cd04b6..edcffd6 100644
--- a/drivers/gpio/gpio-mpc8xxx.c
+++ b/drivers/gpio/gpio-mpc8xxx.c
@@ -163,7 +163,8 @@ static void mpc8xxx_gpio_irq_cascade(unsigned int irq, struct irq_desc *desc)
if (mask)
generic_handle_irq(irq_linear_revmap(mpc8xxx_gc->irq,
32 - ffs(mask)));
- chip->irq_eoi(&desc->irq_data);
+ if (chip->irq_eoi)
+ chip->irq_eoi(&desc->irq_data);
}
static void mpc8xxx_irq_unmask(struct irq_data *d)
--
1.7.9.5
@@ -0,0 +1,52 @@
From 031b0156d47e41f3815fcee8b2043c0b7d21dba0 Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Sun, 13 May 2012 22:29:25 +0200
Subject: [PATCH 094/117] drm/i915: don't clobber the pipe param in
sanitize_modesetting
commit a9dcf84b14ef4e9a609910367576995e6f32f3dc upstream.
... we need it later on in the function to clean up pipe <-> plane
associations. This regression has been introduced in
commit f47166d2b0001fcb752b40c5a2d4db986dfbea68
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date: Thu Mar 22 15:00:50 2012 +0000
drm/i915: Sanitize BIOS debugging bits from PIPECONF
Spotted by staring at debug output of an (as it turns out) totally
unrelated bug.
v2: I've totally failed to do the s/pipe/i/ correctly, spotted by
Chris Wilson.
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/gpu/drm/i915/intel_display.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 68fa8f8..3ff980d 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -7280,10 +7280,11 @@ static void intel_sanitize_modesetting(struct drm_device *dev,
{
struct drm_i915_private *dev_priv = dev->dev_private;
u32 reg, val;
+ int i;
/* Clear any frame start delays used for debugging left by the BIOS */
- for_each_pipe(pipe) {
- reg = PIPECONF(pipe);
+ for_each_pipe(i) {
+ reg = PIPECONF(i);
I915_WRITE(reg, I915_READ(reg) & ~PIPECONF_FRAME_START_DELAY_MASK);
}
--
1.7.9.5
@@ -0,0 +1,42 @@
From ee003c924af5accb5545a0f07b09f488cdd16e76 Mon Sep 17 00:00:00 2001
From: Herton Ronaldo Krzesinski <herton.krzesinski@canonical.com>
Date: Fri, 11 May 2012 15:29:50 -0700
Subject: [PATCH 095/117] spi/spi-fsl-spi: reference correct pdata in
fsl_spi_cs_control
commit 067aa4815a9bc12a569d8a06afef50ba5773afbf upstream.
Commit 178db7d3, "spi: Fix device unregistration when unregistering
the bus master", changed spi device initialization of dev.parent pointer
to be the master's device pointer instead of his parent.
This introduced a bug in spi-fsl-spi, since its usage of spi device
pointer was not updated accordingly. This was later fixed by commit
5039a86, "spi/mpc83xx: fix NULL pdata dereference bug", but it missed
another spot on fsl_spi_cs_control function where we also need to update
usage of spi device pointer. This change address that.
Signed-off-by: Herton Ronaldo Krzesinski <herton.krzesinski@canonical.com>
Acked-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/spi/spi-fsl-spi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/spi/spi-fsl-spi.c b/drivers/spi/spi-fsl-spi.c
index 5f748c0..6a62934 100644
--- a/drivers/spi/spi-fsl-spi.c
+++ b/drivers/spi/spi-fsl-spi.c
@@ -933,7 +933,7 @@ err:
static void fsl_spi_cs_control(struct spi_device *spi, bool on)
{
- struct device *dev = spi->dev.parent;
+ struct device *dev = spi->dev.parent->parent;
struct mpc8xxx_spi_probe_info *pinfo = to_of_pinfo(dev->platform_data);
u16 cs = spi->chip_select;
int gpio = pinfo->gpios[cs];
--
1.7.9.5
@@ -0,0 +1,90 @@
From ccee9896b442dd46dc0fd4c7ae4b9e8e470fab2b Mon Sep 17 00:00:00 2001
From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Date: Mon, 21 May 2012 16:54:10 +0100
Subject: [PATCH 096/117] xen: do not map the same GSI twice in PVHVM guests.
commit 68c2c39a76b094e9b2773e5846424ea674bf2c46 upstream.
PV on HVM guests map GSIs into event channels. At restore time the
event channels are resumed by restore_pirqs.
Device drivers might try to register the same GSI again through ACPI at
restore time, but the GSI has already been mapped and bound by
restore_pirqs. This patch detects these situations and avoids
mapping the same GSI multiple times.
Without this patch we get:
(XEN) irq.c:2235: dom4: pirq 23 or emuirq 28 already mapped
and waste a pirq.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
arch/x86/pci/xen.c | 4 ++++
drivers/xen/events.c | 5 +++--
include/xen/events.h | 3 +++
3 files changed, 10 insertions(+), 2 deletions(-)
diff --git a/arch/x86/pci/xen.c b/arch/x86/pci/xen.c
index d99346e..4c262f6 100644
--- a/arch/x86/pci/xen.c
+++ b/arch/x86/pci/xen.c
@@ -64,6 +64,10 @@ static int xen_register_pirq(u32 gsi, int gsi_override, int triggering,
int shareable = 0;
char *name;
+ irq = xen_irq_from_gsi(gsi);
+ if (irq > 0)
+ return irq;
+
if (set_pirq)
pirq = gsi;
diff --git a/drivers/xen/events.c b/drivers/xen/events.c
index 6e075cd..fec1204 100644
--- a/drivers/xen/events.c
+++ b/drivers/xen/events.c
@@ -600,7 +600,7 @@ static void disable_pirq(struct irq_data *data)
disable_dynirq(data);
}
-static int find_irq_by_gsi(unsigned gsi)
+int xen_irq_from_gsi(unsigned gsi)
{
struct irq_info *info;
@@ -614,6 +614,7 @@ static int find_irq_by_gsi(unsigned gsi)
return -1;
}
+EXPORT_SYMBOL_GPL(xen_irq_from_gsi);
/*
* Do not make any assumptions regarding the relationship between the
@@ -633,7 +634,7 @@ int xen_bind_pirq_gsi_to_irq(unsigned gsi,
mutex_lock(&irq_mapping_update_lock);
- irq = find_irq_by_gsi(gsi);
+ irq = xen_irq_from_gsi(gsi);
if (irq != -1) {
printk(KERN_INFO "xen_map_pirq_gsi: returning irq %d for gsi %u\n",
irq, gsi);
diff --git a/include/xen/events.h b/include/xen/events.h
index d287997..8f3d622 100644
--- a/include/xen/events.h
+++ b/include/xen/events.h
@@ -96,6 +96,9 @@ int xen_irq_from_pirq(unsigned pirq);
/* Return the pirq allocated to the irq. */
int xen_pirq_from_irq(unsigned irq);
+/* Return the irq allocated to the gsi */
+int xen_irq_from_gsi(unsigned gsi);
+
/* Determine whether to ignore this IRQ if it is passed to a guest. */
int xen_test_irq_shared(int irq);
--
1.7.9.5
@@ -0,0 +1,32 @@
From 49228e195ea0ed24fe598a16c8721ee019df508d Mon Sep 17 00:00:00 2001
From: Dave Airlie <airlied@redhat.com>
Date: Fri, 18 May 2012 15:31:12 +0100
Subject: [PATCH 097/117] nouveau: nouveau_set_bo_placement takes TTM flags
commit c284815debba2f14ee2fd07b1b4cc972ab116110 upstream.
This seems to be wrong to me, spotted while thinking about dma-buf.
Reviewed-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/gpu/drm/nouveau/nouveau_bo.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c
index 7cc37e6..d5af089 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bo.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bo.c
@@ -1024,7 +1024,7 @@ nouveau_ttm_fault_reserve_notify(struct ttm_buffer_object *bo)
nvbo->placement.fpfn = 0;
nvbo->placement.lpfn = dev_priv->fb_mappable_pages;
- nouveau_bo_placement_set(nvbo, TTM_PL_VRAM, 0);
+ nouveau_bo_placement_set(nvbo, TTM_PL_FLAG_VRAM, 0);
return nouveau_bo_validate(nvbo, false, true, false);
}
--
1.7.9.5
@@ -0,0 +1,43 @@
From 7a3402ddb979d26b777cc6f99824881af9362e8d Mon Sep 17 00:00:00 2001
From: Andi Kleen <andi@firstfloor.org>
Date: Fri, 19 Nov 2010 13:16:22 +0100
Subject: [PATCH 098/117] MCE: Fix vm86 handling for 32bit mce handler
commit a129a7c84582629741e5fa6f40026efcd7a65bd4 upstream.
When running on 32bit the mce handler could misinterpret
vm86 mode as ring 0. This can affect whether it does recovery
or not; it was possible to panic when recovery was actually
possible.
Fix this by always forcing vm86 to look like ring 3.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
arch/x86/kernel/cpu/mcheck/mce.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c
index 2af127d..b0f1271 100644
--- a/arch/x86/kernel/cpu/mcheck/mce.c
+++ b/arch/x86/kernel/cpu/mcheck/mce.c
@@ -389,6 +389,14 @@ static inline void mce_gather_info(struct mce *m, struct pt_regs *regs)
if (m->mcgstatus & (MCG_STATUS_RIPV|MCG_STATUS_EIPV)) {
m->ip = regs->ip;
m->cs = regs->cs;
+
+ /*
+ * When in VM86 mode make the cs look like ring 3
+ * always. This is a lie, but it's better than passing
+ * the additional vm86 bit around everywhere.
+ */
+ if (v8086_mode(regs))
+ m->cs |= 3;
}
/* Use accurate RIP reporting if available. */
if (rip_msr)
--
1.7.9.5
@@ -0,0 +1,53 @@
From 7938ffb57366a0e5f4b878955148f515d9940453 Mon Sep 17 00:00:00 2001
From: Tony Luck <tony.luck@intel.com>
Date: Wed, 23 May 2012 14:14:22 -0700
Subject: [PATCH 099/117] x86/mce: Fix check for processor context when
machine check was taken.
commit 875e26648cf9b6db9d8dc07b7959d7c61fb3f49c upstream.
Linus pointed out that there was no value is checking whether m->ip
was zero - because zero is a legimate value. If we have a reliable
(or faked in the VM86 case) "m->cs" we can use it to tell whether we
were in user mode or kernelwhen the machine check hit.
Reported-by: Linus Torvalds <torvalds@linuxfoundation.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
arch/x86/kernel/cpu/mcheck/mce-severity.c | 16 ++++++++++------
1 file changed, 10 insertions(+), 6 deletions(-)
diff --git a/arch/x86/kernel/cpu/mcheck/mce-severity.c b/arch/x86/kernel/cpu/mcheck/mce-severity.c
index 7395d5f..c9c9cfe 100644
--- a/arch/x86/kernel/cpu/mcheck/mce-severity.c
+++ b/arch/x86/kernel/cpu/mcheck/mce-severity.c
@@ -145,15 +145,19 @@ static struct severity {
};
/*
- * If the EIPV bit is set, it means the saved IP is the
- * instruction which caused the MCE.
+ * If mcgstatus indicated that ip/cs on the stack were
+ * no good, then "m->cs" will be zero and we will have
+ * to assume the worst case (IN_KERNEL) as we actually
+ * have no idea what we were executing when the machine
+ * check hit.
+ * If we do have a good "m->cs" (or a faked one in the
+ * case we were executing in VM86 mode) we can use it to
+ * distinguish an exception taken in user from from one
+ * taken in the kernel.
*/
static int error_context(struct mce *m)
{
- if (m->mcgstatus & MCG_STATUS_EIPV)
- return (m->ip && (m->cs & 3) == 3) ? IN_USER : IN_KERNEL;
- /* Unknown, assume kernel */
- return IN_KERNEL;
+ return ((m->cs & 3) == 3) ? IN_USER : IN_KERNEL;
}
int mce_severity(struct mce *m, int tolerant, char **msg)
--
1.7.9.5

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