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sparc32: fix build, fix missing cpu_relax declaration 

Fix following sparc (32 bit) build error:

  CC      arch/sparc/kernel/asm-offsets.s
In file included from include/linux/seqlock.h:29:0,
                 from include/linux/time.h:8,
                 from include/linux/timex.h:56,
                 from include/linux/sched.h:57,
                 from arch/sparc/kernel/asm-offsets.c:13:
include/linux/spinlock.h: In function 'spin_unlock_wait':
include/linux/spinlock.h:360:2: error: implicit declaration of function 'cpu_relax'

Most likely caused by commit e66eed651f ("list: remove
prefetching from regular list iterators") due to include
changes.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sam Ravnborg 2011-05-21 22:55:17 +02:00 committed by David S. Miller
parent 17d9f311ec
commit f400bdb1d6
1 changed files with 1 additions and 0 deletions
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arch/sparc/include/asm/spinlock_32.h
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@ -9,6 +9,7 @@
#ifndef __ASSEMBLY__
#include <asm/psr.h>
#include <asm/processor.h> /* for cpu_relax */
#define arch_spin_is_locked(lock) (*((volatile unsigned char *)(lock)) != 0)