Commit-ID: c01d4323309a90a298fd81cf3a059ee1b12be2e9 Gitweb: http://git.kernel.org/tip/c01d4323309a90a298fd81cf3a059ee1b12be2e9 Author: Frederic Weisbecker <fweisbec@xxxxxxxxx> AuthorDate: Sat, 15 May 2010 22:57:48 +0200 Committer: Frederic Weisbecker <fweisbec@xxxxxxxxx> CommitDate: Sun, 16 May 2010 01:57:36 +0200 lockup_detector: Adapt CONFIG_PERF_EVENT_NMI to other archs CONFIG_PERF_EVENT_NMI is something that need to be enabled from the arch. This is fine on x86 as PERF_EVENTS is builtin but if other archs select it, they will need to handle the PERF_EVENTS dependency. Instead, handle the dependency in the generic layer: - archs need to tell what they support through HAVE_PERF_EVENTS_NMI - Enable magically PERF_EVENTS_NMI if we have PERF_EVENTS and HAVE_PERF_EVENTS_NMI. Signed-off-by: Frederic Weisbecker <fweisbec@xxxxxxxxx> Cc: Ingo Molnar <mingo@xxxxxxx> Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx> Cc: Don Zickus <dzickus@xxxxxxxxxx> Cc: Cyrill Gorcunov <gorcunov@xxxxxxxxx> --- arch/Kconfig | 3 +++ arch/x86/Kconfig | 2 +- init/Kconfig | 3 +-- 3 files changed, 5 insertions(+), 3 deletions(-) diff --git a/arch/Kconfig b/arch/Kconfig index e5eb133..89b0efb 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -145,4 +145,7 @@ config HAVE_HW_BREAKPOINT config HAVE_USER_RETURN_NOTIFIER bool +config HAVE_PERF_EVENTS_NMI + bool + source "kernel/gcov/Kconfig" diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 3cb28cd..3cb5bb0 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -54,7 +54,7 @@ config X86 select HAVE_KERNEL_LZO select HAVE_HW_BREAKPOINT select PERF_EVENTS - select PERF_EVENTS_NMI + select HAVE_PERF_EVENTS_NMI select ANON_INODES select HAVE_ARCH_KMEMCHECK select HAVE_USER_RETURN_NOTIFIER diff --git a/init/Kconfig b/init/Kconfig index e44e254..ab733c3 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -943,8 +943,7 @@ config PERF_USE_VMALLOC See tools/perf/design.txt for details config PERF_EVENTS_NMI - bool - depends on PERF_EVENTS + def_bool PERF_EVENTS && HAVE_PERF_EVENTS_NMI help System hardware can generate an NMI using the perf event subsystem. Also has support for calculating CPU cycle events -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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