lkml.org 
[lkml]   [2014]   [Feb]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[PATCH v2 3/3] x86/hash: cleanup
- simplify switch statement
- add __init annotation to setup_arch_fast_hash()

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Cc: Francesco Fusco <ffusco@redhat.com>
Cc: Daniel Borkmann <dborkman@redhat.com>
Cc: Thomas Graf <tgraf@redhat.com>
Cc: David S. Miller <davem@davemloft.net>
---
arch/x86/lib/hash.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)

--- 3.14-rc4-x86-hash-crc32.orig/arch/x86/lib/hash.c
+++ 3.14-rc4-x86-hash-crc32/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
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
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;




\
 
 \ /
  Last update: 2014-02-27 10:41    [W:0.114 / U:1.316 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site