mdadm: Fix build on gcc 4.9

Fix

error: right-hand operand of comma expression has no effect
[-Werror=unused-value]

(From OE-Core rev: 9e1aac485175d29951f7ad23cd7515c8f7580271)

(From OE-Core rev: 58da3355522736b93bb6d164739c795068d2a1e8)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2 files changed, 24 insertions, 1 deletions

diff --git a/meta/recipes-extended/mdadm/files/gcc-4.9.patch b/meta/recipes-extended/mdadm/files/gcc-4.9.patch
new file mode 100644
index 0000000000..54bf1d79ab
--- /dev/null
+++ b/meta/recipes-extended/mdadm/files/gcc-4.9.patch
@@ -0,0 +1,22 @@
+super-intel.c:5063:2: error: right-hand operand of comma expression has no effect [-Werror=unused-value]
+  snprintf((char *) spare->sig, MAX_SIGNATURE_LENGTH,
+  ^
+cc1: all warnings being treated as errors
+make: *** [super-intel.o] Error 1
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+Upstream-Status: Pending
+
+Index: mdadm-3.3/super-intel.c
+===================================================================
+--- mdadm-3.3.orig/super-intel.c        2014-05-02 15:08:21.154319651 -0700
++++ mdadm-3.3/super-intel.c     2014-05-02 15:09:31.470985794 -0700
+@@ -5060,7 +5060,7 @@
+        spare->cache_size = mpb->cache_size,
+        spare->pwr_cycle_count = __cpu_to_le32(1),
+ 
+-       snprintf((char *) spare->sig, MAX_SIGNATURE_LENGTH,
++       (void)snprintf((char *) spare->sig, MAX_SIGNATURE_LENGTH,
+                 MPB_SIGNATURE MPB_VERSION_RAID0);
+ 
+        for (d = super->disks; d; d = d->next) {
diff --git a/meta/recipes-extended/mdadm/mdadm_3.3.bb b/meta/recipes-extended/mdadm/mdadm_3.3.bb
index 5ef418e170..40d68d6664 100644
--- a/meta/recipes-extended/mdadm/mdadm_3.3.bb
+++ b/meta/recipes-extended/mdadm/mdadm_3.3.bb
@@ -9,7 +9,8 @@ LIC_FILES_CHKSUM = "file://COPYING;md5=b234ee4d69f5fce4486a80fdaf4a4263 \
 
 
 SRC_URI = "${KERNELORG_MIRROR}/linux/utils/raid/mdadm/${BPN}-${PV}.tar.bz2 \
-            file://mdadm-3.2.2_fix_for_x32.patch \
+           file://mdadm-3.2.2_fix_for_x32.patch \
+           file://gcc-4.9.patch \
           "
 
 SRC_URI[md5sum] = "8ac04259cdd74b4566c3b6dea9414b57"