3.18-stable review patch. If anyone has any objections, please let me know.
------------------
From: Chris Metcalf <cmetc...@ezchip.com>
commit 7a5692e6e533fd379081ab06fb58f3f5ee4d80bc upstream.
For some reason, only the little-endian flavor of
powerpc provided the zero_bytemask() implementation.
Reported-by: Michal Sojka <sojk...@fel.cvut.cz>
Acked-by: Michael Ellerman <m...@ellerman.id.au>
Signed-off-by: Chris Metcalf <cmetc...@ezchip.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
arch/powerpc/include/asm/word-at-a-time.h | 5 +++++
1 file changed, 5 insertions(+)
--- a/arch/powerpc/include/asm/word-at-a-time.h
+++ b/arch/powerpc/include/asm/word-at-a-time.h
@@ -40,6 +40,11 @@ static inline bool has_zero(unsigned lon
return (val + c->high_bits) & ~rhs;
}
+static inline unsigned long zero_bytemask(unsigned long mask)
+{
+ return ~1ul << __fls(mask);
+}
+
#else
#ifdef CONFIG_64BIT
