Messages in this thread Patch in this message | | | From | Deng-Cheng Zhu <> | Subject | [PATCH 5/5] MIPS/Perf-events: Use unsigned delta for right shift in event update | Date | Thu, 18 Nov 2010 14:56:41 +0800 |
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Leverage the commit for ARM by Will Deacon:
446a5a8b1eb91a6990e5c8fe29f14e7a95b69132 ARM: 6205/1: perf: ensure counter delta is treated as unsigned
Signed-off-by: Deng-Cheng Zhu <dengcheng.zhu@gmail.com> --- arch/mips/kernel/perf_event.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/mips/kernel/perf_event.c b/arch/mips/kernel/perf_event.c index 345232a..0f1cdf5 100644 --- a/arch/mips/kernel/perf_event.c +++ b/arch/mips/kernel/perf_event.c @@ -169,7 +169,7 @@ static void mipspmu_event_update(struct perf_event *event, unsigned long flags; int shift = 64 - TOTAL_BITS; s64 prev_raw_count, new_raw_count; - s64 delta; + u64 delta; again: prev_raw_count = local64_read(&hwc->prev_count); -- 1.7.1
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