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>

diff --git a/arch/csky/kernel/perf_event.c b/arch/csky/kernel/perf_event.c
index 4c1a1934d76ab6447c583126828f984b887afc13..7570109cddc6a6455dd282b774a5095fedf5a597 100644 (file)
--- 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;