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h8300: add missing definition for read_barries_depends()

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Add missing definition for read_barries_depends() for h8300 to fix error:
kernel/task_work.c: In function 'task_work_cancel':
kernel/task_work.c:38:3: error: implicit declaration of function 'read_barrier_depends' [-Werror=implicit-function-declaration]
cc1: some warnings being treated as errors
make[1]: *** [kernel/task_work.o] Error 1
make: *** [kernel] Error 2

Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: David Howells <dhowells@redhat.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
This commit is contained in:
Jiang Liu 2013-03-22 00:31:44 +08:00 committed by Geert Uytterhoeven
parent c0b81e0036
commit c805a5b7ca
1 changed files with 2 additions and 0 deletions
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2
arch/h8300/include/asm/barrier.h
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@ -12,6 +12,8 @@
#define wmb() asm volatile ("" : : :"memory")
#define set_mb(var, value) do { xchg(&var, value); } while (0)
#define read_barrier_depends() do { } while (0)
#ifdef CONFIG_SMP
#define smp_mb() mb()
#define smp_rmb() rmb()