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| author | Mao Han <han_mao@c-sky.com> | 2019-09-25 11:23:02 +0200 |
|---|---|---|
| committer | Guo Ren <ren_guo@c-sky.com> | 2019-09-30 04:26:33 +0200 |
| commit | 3a09d8e2893b2403a043890e5832966e8640feaf (patch) | |
| tree | 223e7acd6759948b7561d310b447ae766dd795a6 | |
| parent | csky: Fixup add zero_fp fixup perf backtrace panic (diff) | |
| download | linux-3a09d8e2893b2403a043890e5832966e8640feaf.tar.xz linux-3a09d8e2893b2403a043890e5832966e8640feaf.zip | |
csky: Fixup csky_pmu.max_period assignment
The csky_pmu.max_period has type u64, and BIT() can only return
32 bits unsigned long on C-SKY. The initialization for max_period
will be incorrect when count_width is bigger than 32.
Use BIT_ULL()
Signed-off-by: Mao Han <han_mao@c-sky.com>
Signed-off-by: Guo Ren <ren_guo@c-sky.com>
| -rw-r--r-- | arch/csky/kernel/perf_event.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/csky/kernel/perf_event.c b/arch/csky/kernel/perf_event.c index 4c1a1934d76a..7570109cddc6 100644 --- a/arch/csky/kernel/perf_event.c +++ b/arch/csky/kernel/perf_event.c @@ -1306,7 +1306,7 @@ int csky_pmu_device_probe(struct platform_device *pdev, &csky_pmu.count_width)) { csky_pmu.count_width = DEFAULT_COUNT_WIDTH; } - csky_pmu.max_period = BIT(csky_pmu.count_width) - 1; + csky_pmu.max_period = BIT_ULL(csky_pmu.count_width) - 1; csky_pmu.plat_device = pdev; |