Re: [PATCH] Add "is_power_of_2" checking to log2.h.

Hello, 

Please fix the parentheses thing in both arch/powerpc/mm/pgtable_32.c and 
arch/ppc/mm/pgtable.c.

> +#define is_power_of_4(x)	is_power_of_2(x) && (ffs(x) & 1))

Regards,

	Mariusz Kozlowski
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