rdma-core: Replace pthread_yield with sched_yield

Fixes

/usr/src/debug/rdma-core/26.1-r0/git/librdmacm/rsocket.c:3041: undefined reference to `pthread_yield'
collect2: error: ld returned 1 exit status

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Cc: Kai Kang <kai.kang@windriver.com>

meta-networking/recipes-support/rdma-core/rdma-core/0001-librdmacm-Use-sched_yield-instead-of-pthread_yield.patch

@@ -0,0 +1,30 @@
+From 6ac9562d756d42592994aeaac7a5e7b2bbce5cab Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Sat, 14 Dec 2019 14:07:57 -0800
+Subject: [PATCH] librdmacm: Use sched_yield instead of pthread_yield
+
+glibc redirects pthread_yield to sched_yield additionally we get it
+working with musl on linux
+
+Upstream-Status: Submitted [https://github.com/linux-rdma/rdma-core/pull/635]
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ librdmacm/rsocket.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/librdmacm/rsocket.c b/librdmacm/rsocket.c
+index 89ae2139..7fc5b266 100644
+--- a/librdmacm/rsocket.c
++++ b/librdmacm/rsocket.c
+@@ -3038,7 +3038,7 @@ static int rs_poll_enter(void)
+ 	pthread_mutex_lock(&mut);
+ 	if (suspendpoll) {
+ 		pthread_mutex_unlock(&mut);
+-		pthread_yield();
++		sched_yield();
+ 		return -EBUSY;
+ 	}
+ 
+-- 
+2.24.1
+

meta-networking/recipes-support/rdma-core/rdma-core_27.0.bb

@@ -8,6 +8,7 @@ RDEPENDS_${PN} = "bash perl"
 BRANCH = "stable-v${@d.getVar('PV').split('.')[0]}"
 SRC_URI = "git://github.com/linux-rdma/rdma-core.git;branch=${BRANCH} \
            file://0001-Remove-man-files-which-cant-be-built.patch \
+           file://0001-librdmacm-Use-sched_yield-instead-of-pthread_yield.patch \
            "
 SRCREV = "84caf035ae6123e2296b72006cd2cf698c65eb46"
 S = "${WORKDIR}/git"