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| author | Colin King <colin.king@canonical.com> | 2017-01-11 12:43:10 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2017-01-11 16:43:30 +0100 |
| commit | ad5013d5699d30ded0cdbbc68b93b2aa28222c6e (patch) | |
| tree | 79658ac336208c6288df70bade304e494ee20ab0 /kernel | |
| parent | perf/x86/intel/uncore: Fix hardcoded socket 0 assumption in the Haswell init ... (diff) | |
| download | linux-ad5013d5699d30ded0cdbbc68b93b2aa28222c6e.tar.xz linux-ad5013d5699d30ded0cdbbc68b93b2aa28222c6e.zip | |
perf/x86/intel: Use ULL constant to prevent undefined shift behaviour
When x86_pmu.num_counters is 32 the shift of the integer constant 1 is
exceeding 32bit and therefor undefined behaviour.
Fix this by shifting 1ULL instead of 1.
Reported-by: CoverityScan CID#1192105 ("Bad bit shift operation")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Link: http://lkml.kernel.org/r/20170111114310.17928-1-colin.king@canonical.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel')
0 files changed, 0 insertions, 0 deletions