alsa-lib: fix function definitions error for mips

Functions atomic_add(s) and atomic_sub(s) are defined with 'extern
__inline__' that may cause compile fails when cross compile for mips.
The error message looks like:

| pcm/.libs/libpcm.a(pcm_meter.o): In function
`snd_pcm_meter_update_scope':
| .../alsa-lib-1.0.27.2/src/pcm/pcm_meter.c:139: undefined reference to
`atomic_sub'

Replace the 'extern __inline__' with 'static __inline__' to fix this
issue.

Signed-off-by: Kai Kang <kai.kang@windriver.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>

2 files changed, 69 insertions, 0 deletions

diff --git a/meta/recipes-multimedia/alsa/alsa-lib/Update-iatomic.h-functions-definitions-for-mips.patch b/meta/recipes-multimedia/alsa/alsa-lib/Update-iatomic.h-functions-definitions-for-mips.patch
new file mode 100644
index 0000000000..f1a7947c2b
--- /dev/null
+++ b/meta/recipes-multimedia/alsa/alsa-lib/Update-iatomic.h-functions-definitions-for-mips.patch
@@ -0,0 +1,68 @@
+Upstream-Status: Backport
+
+Signed-off-by: Kai Kang <kai.kang@windriver.com>
+
+From f21f48a70f8437a671b58fcab75e54222a9eea16 Mon Sep 17 00:00:00 2001
+From: Kai Kang <jiashuo.kang at gmail.com>
+Date: Thu, 15 Aug 2013 17:17:19 +0800
+Subject: [PATCH] Update iatomic.h functions definitions for mips
+
+Functions atomic_add(s) and atomic_sub(s) are defined with 'extern
+__inline__' that may cause compile fails when cross compile for mips.
+The error message looks like:
+
+| pcm/.libs/libpcm.a(pcm_meter.o): In function `snd_pcm_meter_update_scope':
+| .../alsa-lib-1.0.27.2/src/pcm/pcm_meter.c:139: undefined reference to `atomic_sub'
+
+Replace the 'extern __inline__' with 'static __inline__' to fix this
+issue.
+
+Signed-off-by: Kai Kang <jiashuo.kang at gmail.com>
+Signed-off-by: Takashi Iwai <tiwai@suse.de>
+---
+ include/iatomic.h | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+diff --git a/include/iatomic.h b/include/iatomic.h
+index 5711fe8..2393297 100644
+--- a/include/iatomic.h
++++ b/include/iatomic.h
+@@ -720,7 +720,7 @@ typedef struct { volatile int counter; } atomic_t;
+  * Atomically adds @i to @v.  Note that the guaranteed useful range
+  * of an atomic_t is only 24 bits.
+  */
+-extern __inline__ void atomic_add(int i, atomic_t * v)
++static __inline__ void atomic_add(int i, atomic_t * v)
+ {
+ 	unsigned long temp;
+ 
+@@ -744,7 +744,7 @@ extern __inline__ void atomic_add(int i, atomic_t * v)
+  * Atomically subtracts @i from @v.  Note that the guaranteed
+  * useful range of an atomic_t is only 24 bits.
+  */
+-extern __inline__ void atomic_sub(int i, atomic_t * v)
++static __inline__ void atomic_sub(int i, atomic_t * v)
+ {
+ 	unsigned long temp;
+ 
+@@ -763,7 +763,7 @@ extern __inline__ void atomic_sub(int i, atomic_t * v)
+ /*
+  * Same as above, but return the result value
+  */
+-extern __inline__ int atomic_add_return(int i, atomic_t * v)
++static __inline__ int atomic_add_return(int i, atomic_t * v)
+ {
+ 	unsigned long temp, result;
+ 
+@@ -784,7 +784,7 @@ extern __inline__ int atomic_add_return(int i, atomic_t * v)
+ 	return result;
+ }
+ 
+-extern __inline__ int atomic_sub_return(int i, atomic_t * v)
++static __inline__ int atomic_sub_return(int i, atomic_t * v)
+ {
+ 	unsigned long temp, result;
+ 
+-- 
+1.8.1.2
+
diff --git a/meta/recipes-multimedia/alsa/alsa-lib_1.0.27.2.bb b/meta/recipes-multimedia/alsa/alsa-lib_1.0.27.2.bb
index 545594466c..0e1ea76033 100644
--- a/meta/recipes-multimedia/alsa/alsa-lib_1.0.27.2.bb
+++ b/meta/recipes-multimedia/alsa/alsa-lib_1.0.27.2.bb
@@ -17,6 +17,7 @@ ARM_INSTRUCTION_SET = "arm"
 SRC_URI = "ftp://ftp.alsa-project.org/pub/lib/alsa-lib-${PV}.tar.bz2 \
            file://Check-if-wordexp-function-is-supported.patch \
            file://fix-tstamp-declaration.patch \
+           file://Update-iatomic.h-functions-definitions-for-mips.patch \
           "
 SRC_URI[md5sum] = "69129a7c37697f81ac092335e9fa452b"
 SRC_URI[sha256sum] = "690ed393e7efd4fc7e3a2d2cda5449298ca0c895197e5914e350882012430d19"