Commit 3a09d8e2 authored Sep 25, 2019 by Mao Han Committed by Guo Ren Sep 30, 2019

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>

parent 48ede51f

arch/csky/kernel/perf_event.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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;