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x86, hw_nmi: Move backtrace_mask declaration under ARCH_HAS_NMI_WATCHDOG 

backtrace_mask has been used under the code context of
ARCH_HAS_NMI_WATCHDOG. So put it into that context.
We were warned by the following warning:

  arch/x86/kernel/apic/hw_nmi.c:21: warning: ‘backtrace_mask’ defined but not used

Signed-off-by: Rakib Mullick <rakib.mullick@gmail.com>
Signed-off-by: Don Zickus <dzickus@redhat.com>
LKML-Reference: <1289573455-3410-2-git-send-email-dzickus@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Rakib Mullick 2010-11-12 09:50:54 -05:00 committed by Ingo Molnar
parent a89d4bd055
commit 0e2af2a9ab
1 changed files with 4 additions and 3 deletions
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7
arch/x86/kernel/apic/hw_nmi.c
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@ -17,15 +17,16 @@
#include <linux/nmi.h> #include <linux/nmi.h>
#include <linux/module.h> #include <linux/module.h>
/* For reliability, we're prepared to waste bits here. */
static DECLARE_BITMAP(backtrace_mask, NR_CPUS) __read_mostly;
u64 hw_nmi_get_sample_period(void) u64 hw_nmi_get_sample_period(void)
{ {
return (u64)(cpu_khz) * 1000 * 60; return (u64)(cpu_khz) * 1000 * 60;
} }
#ifdef ARCH_HAS_NMI_WATCHDOG #ifdef ARCH_HAS_NMI_WATCHDOG
/* For reliability, we're prepared to waste bits here. */
static DECLARE_BITMAP(backtrace_mask, NR_CPUS) __read_mostly;
void arch_trigger_all_cpu_backtrace(void) void arch_trigger_all_cpu_backtrace(void)
{ {
int i; int i;