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i386: fix early usage of atomic_add_return and local_add_return on real i386 

The check (boot_cpu_data.x86 == 3) in atomic_add_return() and
local_add_return() fails, when those operations are used before
boot_cpu_data is filled in.

Change the check to (boot_cpu_data.x86 <= 3) to fix this.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
hifive-unleashed-5.1
Thomas Gleixner 2007-05-23 13:58:19 -07:00 committed by Linus Torvalds
parent 98d8256739
commit 03491c9293
2 changed files with 2 additions and 2 deletions
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2
include/asm-i386/atomic.h
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@ -182,7 +182,7 @@ static __inline__ int atomic_add_return(int i, atomic_t *v)
int __i;
#ifdef CONFIG_M386
unsigned long flags;
if(unlikely(boot_cpu_data.x86==3))
if(unlikely(boot_cpu_data.x86 <= 3))
goto no_xadd;
#endif
/* Modern 486+ processor */

2
include/asm-i386/local.h
View File

@ -135,7 +135,7 @@ static __inline__ long local_add_return(long i, local_t *l)
long __i;
#ifdef CONFIG_M386
unsigned long flags;
if(unlikely(boot_cpu_data.x86==3))
if(unlikely(boot_cpu_data.x86 <= 3))
goto no_xadd;
#endif
/* Modern 486+ processor */