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Subject[PATCH 5/6] hw_breakpoints: Only force perf events if breakpoints are selected
Date
Previously, arch were forced to always build perf events if they
supported hw_breakpoints.

Now that the user can choose not to build hw_breakpoints, let
only force perf events if hw_breakpoints are selected.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Prasad <prasad@linux.vnet.ibm.com>
Cc: Paul Mundt <lethal@linux-sh.org>
---
arch/sh/Kconfig | 1 -
arch/x86/Kconfig | 1 -
init/Kconfig | 1 +
3 files changed, 1 insertions(+), 2 deletions(-)
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 0d4d124..d59e6c2 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -46,7 +46,6 @@ config SUPERH32
select HAVE_HW_BREAKPOINT
select HW_BREAKPOINT
select HAVE_MIXED_BREAKPOINTS_REGS
- select PERF_EVENTS
select ARCH_HIBERNATION_POSSIBLE if MMU
select SPARSE_IRQ

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index fb28dd9..5317f42 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -55,7 +55,6 @@ config X86
select HAVE_KERNEL_LZO
select HAVE_HW_BREAKPOINT
select HAVE_MIXED_BREAKPOINTS_REGS
- select PERF_EVENTS
select HAVE_PERF_EVENTS_NMI
select ANON_INODES
select HAVE_ARCH_KMEMCHECK
diff --git a/init/Kconfig b/init/Kconfig
index 51f587f..797c98c 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -927,6 +927,7 @@ menuconfig EXPERT
config HW_BREAKPOINT
bool "Hardware breakpoints" if EXPERT
depends on HAVE_HW_BREAKPOINT
+ select PERF_EVENTS
default y
help
Hardware breakpoints are a feature implemented by most CPUs
--
1.7.3.2


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