Hi, Masahiro.

Thanks for pointing out. I will check it.

Best Regards, Jaehoon Chung

On 07/30/2014 06:59 PM, Masahiro Yamada wrote:

Hi, Samsung developers,

I notice the following warning when building Exynos family:

arch/arm/cpu/armv7/exynos/clock.c: In function 'clock_get_periph_rate': arch/arm/cpu/armv7/exynos/clock.c:263:47: warning: array subscript is above array bounds [-Warray-bounds] struct clk_bit_info *bit_info = &clk_bit_info[peripheral]; ^ arch/arm/cpu/armv7/exynos/clock.c:263:47: warning: array subscript is above array bounds [-Warray-bounds] arch/arm/cpu/armv7/exynos/clock.c: In function 'clock_get_periph_rate': arch/arm/cpu/armv7/exynos/clock.c:263:47: warning: array subscript is above array bounds [-Warray-bounds] struct clk_bit_info *bit_info = &clk_bit_info[peripheral]; ^ arch/arm/cpu/armv7/exynos/clock.c:263:47: warning: array subscript is above array bounds [-Warray-bounds]

I think the cause is that PERIPH_ID_PWM0 is defined as 132, but clk_bit_info has much smaller array size.

You can repeat this with this toolchain: https://www.kernel.org/pub/tools/crosstool/files/bin/x86_64/4.9.0/x86_64-gcc...

Best Regards Masahiro Yamada

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