Commit 7a5692e6 authored Oct 07, 2015 by Chris Metcalf

arch/powerpc: provide zero_bytemask() for big-endian



For some reason, only the little-endian flavor of
powerpc provided the zero_bytemask() implementation.

Reported-by: Michal Sojka <sojkam1@fel.cvut.cz>
Acked-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Chris Metcalf <cmetcalf@ezchip.com>

parent c6fa8e6d

arch/powerpc/include/asm/word-at-a-time.h

+5 −0

Original line number	Diff line number	Diff line
		@@ -40,6 +40,11 @@ static inline bool has_zero(unsigned long val, unsigned long *data, const struct
		return (val + c->high_bits) & ~rhs;
		}

		static inline unsigned long zero_bytemask(unsigned long mask)
		{
		return ~1ul << __fls(mask);
		}

		#else

		#ifdef CONFIG_64BIT