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x86, watchdog: Compile fix when CONFIG_LOCAL_APIC not enabled

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When adjusting the code to handle removing the old nmi watchdog,
I forgot to consider the compile case when the local apic is not
enabled.

This change fixes the following build error:

  arch/x86/kernel/apic/hw_nmi.c:28:6: error: redefinition of ‘touch_nmi_watchdog’

Signed-off-by: Don Zickus <dzickus@redhat.com>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Rakib Mullick <rakib.mullick@gmail.com>
LKML-Reference: <20101213153719.GD18577@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Don Zickus 2010-12-13 10:31:58 -05:00 • committed by Ingo Molnar
parent 67b96c182c
commit 5f29805a4f
1 changed files with 3 additions and 0 deletions
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3
arch/x86/kernel/apic/hw_nmi.c
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@ -17,6 +17,7 @@
#include <linux/nmi.h> #include <linux/nmi.h>
#include <linux/module.h> #include <linux/module.h>
#ifdef ARCH_HAS_NMI_WATCHDOG
#ifdef CONFIG_HARDLOCKUP_DETECTOR #ifdef CONFIG_HARDLOCKUP_DETECTOR
u64 hw_nmi_get_sample_period(void) u64 hw_nmi_get_sample_period(void)
{ {
@ -31,6 +32,8 @@ void touch_nmi_watchdog(void)
} }
EXPORT_SYMBOL(touch_nmi_watchdog); EXPORT_SYMBOL(touch_nmi_watchdog);
#endif #endif
#endif
#ifdef arch_trigger_all_cpu_backtrace #ifdef arch_trigger_all_cpu_backtrace
/* For reliability, we're prepared to waste bits here. */ /* For reliability, we're prepared to waste bits here. */
static DECLARE_BITMAP(backtrace_mask, NR_CPUS) __read_mostly; static DECLARE_BITMAP(backtrace_mask, NR_CPUS) __read_mostly;