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authorJan Beulich <JBeulich@suse.com>2014-02-27 08:47:58 +0000
committerH. Peter Anvin <hpa@linux.intel.com>2014-03-19 16:51:04 -0700
commit7a5917e9787dd73284f04e35c3cfdb39a67bf0d5 (patch)
treeca484768dfb19e508c40b4f1b11ad79cdcdb7845 /arch/x86/lib
parentc5cdfdf90901c51363441365997eecd58efd9374 (diff)
downloadlinux-7a5917e9787dd73284f04e35c3cfdb39a67bf0d5.tar.bz2
x86, hash: Simplify switch, add __init annotation
Minor cleanups: - simplify switch statement - add __init annotation to setup_arch_fast_hash() Signed-off-by: Jan Beulich <jbeulich@suse.com> Link: http://lkml.kernel.org/r/530F09CE020000780011FBEF@nat28.tlf.novell.com Cc: Francesco Fusco <ffusco@redhat.com> Cc: Thomas Graf <tgraf@redhat.com> Cc: David S. Miller <davem@davemloft.net> Acked-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'arch/x86/lib')
-rw-r--r--arch/x86/lib/hash.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/arch/x86/lib/hash.c b/arch/x86/lib/hash.c
index ac628aa93a51..ff4fa51a5b1f 100644
--- a/arch/x86/lib/hash.c
+++ b/arch/x86/lib/hash.c
@@ -32,6 +32,7 @@
*/
#include <linux/hash.h>
+#include <linux/init.h>
#include <asm/processor.h>
#include <asm/cpufeature.h>
@@ -55,17 +56,16 @@ static u32 intel_crc4_2_hash(const void *data, u32 len, u32 seed)
for (i = 0; i < len / 4; i++)
seed = crc32_u32(seed, *p32++);
- switch (3 - (len & 0x03)) {
- case 0:
+ switch (len & 3) {
+ case 3:
tmp |= *((const u8 *) p32 + 2) << 16;
/* fallthrough */
- case 1:
+ case 2:
tmp |= *((const u8 *) p32 + 1) << 8;
/* fallthrough */
- case 2:
+ case 1:
tmp |= *((const u8 *) p32);
seed = crc32_u32(seed, tmp);
- default:
break;
}
@@ -83,7 +83,7 @@ static u32 intel_crc4_2_hash2(const u32 *data, u32 len, u32 seed)
return seed;
}
-void setup_arch_fast_hash(struct fast_hash_ops *ops)
+void __init setup_arch_fast_hash(struct fast_hash_ops *ops)
{
if (cpu_has_xmm4_2) {
ops->hash = intel_crc4_2_hash;