This is a note to let you know that I've just added the patch titled
perf/arm: Fix armpmu_map_hw_event()
to the 3.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
perf-arm-fix-armpmu_map_hw_event.patch
and it can be found in the queue-3.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From b88a2595b6d8aedbd275c07dfa784657b4f757eb Mon Sep 17 00:00:00 2001
From: Stephen Boyd <[email protected]>
Date: Wed, 7 Aug 2013 16:18:08 -0700
Subject: perf/arm: Fix armpmu_map_hw_event()
From: Stephen Boyd <[email protected]>
commit b88a2595b6d8aedbd275c07dfa784657b4f757eb upstream.
Fix constraint check in armpmu_map_hw_event().
Reported-and-tested-by: Vince Weaver <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
arch/arm/kernel/perf_event.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
--- a/arch/arm/kernel/perf_event.c
+++ b/arch/arm/kernel/perf_event.c
@@ -53,7 +53,12 @@ armpmu_map_cache_event(const unsigned (*
static int
armpmu_map_hw_event(const unsigned (*event_map)[PERF_COUNT_HW_MAX], u64 config)
{
- int mapping = (*event_map)[config];
+ int mapping;
+
+ if (config >= PERF_COUNT_HW_MAX)
+ return -ENOENT;
+
+ mapping = (*event_map)[config];
return mapping == HW_OP_UNSUPPORTED ? -ENOENT : mapping;
}
Patches currently in stable-queue which might be from [email protected] are
queue-3.10/perf-arm-fix-armpmu_map_hw_event.patch
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