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x86: Address 'unused' warning in hw_nmi.c again

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arch/x86/kernel/apic/hw_nmi.c:29: warning: backtrace_mask defined but not used

commit 0e2af2a9(x86, hw_nmi: Move backtrace_mask declaration under
ARCH_HAS_NMI_WATCHDOG) addressed this warning, but it was reintroduced
by commit 5f2b0ba4(x86, nmi_watchdog: Remove the old nmi_watchdog).

Move backtrace_mask into the #ifdef arch_trigger_all_cpu_backtrace
section again.

Signed-off-by: Rakib Mullick <rakib.mullick@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <AANLkTi=rcc38QzoKa6LFy4m++-p_9=Zt4_kDQE=GeKxf@mail.gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Rakib Mullick
2010-12-09 14:47:34 +06:00
committed by Thomas Gleixner
parent c277443cfc
commit 2c6cb1053a
1 changed files with 1 additions and 1 deletions
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2
arch/x86/kernel/apic/hw_nmi.c
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@@ -24,11 +24,11 @@ u64 hw_nmi_get_sample_period(void)
} }
#endif #endif
#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;
#ifdef arch_trigger_all_cpu_backtrace
void arch_trigger_all_cpu_backtrace(void) void arch_trigger_all_cpu_backtrace(void)
{ {
int i; int i;