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authorDavid Woodhouse <David.Woodhouse@intel.com>2012-10-09 18:03:21 +0400
committerDavid Woodhouse <David.Woodhouse@intel.com>2012-10-09 18:04:25 +0400
commitffe315012510165ce82e4dd4767f0a5dba9edbf7 (patch)
treef601cd980af9d0ced5ca9aedecef4fa0d2ca0e15 /include/linux/hash.h
parente2d3a35ee427aaba99b6c68a56609ce276c51270 (diff)
parent4a8e43feeac7996b8de2d5b2823e316917493df4 (diff)
downloadlinux-ffe315012510165ce82e4dd4767f0a5dba9edbf7.tar.xz
Merge tag 'disintegrate-mtd-20121009' of git://git.infradead.org/users/dhowells/linux-headers
UAPI Disintegration 2012-10-09 Conflicts: MAINTAINERS arch/arm/configs/bcmring_defconfig arch/arm/mach-imx/clk-imx51-imx53.c drivers/mtd/nand/Kconfig drivers/mtd/nand/bcm_umi_nand.c drivers/mtd/nand/nand_bcm_umi.h drivers/mtd/nand/orion_nand.c
Diffstat (limited to 'include/linux/hash.h')
-rw-r--r--include/linux/hash.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/hash.h b/include/linux/hash.h
index b80506bdd733..24df9e70406f 100644
--- a/include/linux/hash.h
+++ b/include/linux/hash.h
@@ -67,4 +67,14 @@ static inline unsigned long hash_ptr(const void *ptr, unsigned int bits)
{
return hash_long((unsigned long)ptr, bits);
}
+
+static inline u32 hash32_ptr(const void *ptr)
+{
+ unsigned long val = (unsigned long)ptr;
+
+#if BITS_PER_LONG == 64
+ val ^= (val >> 32);
+#endif
+ return (u32)val;
+}
#endif /* _LINUX_HASH_H */