diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-23 14:34:24 -0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-23 14:34:24 -0400 |
commit | defe9104833b5ad309447bbc1fcb8e5981b2d3e1 (patch) | |
tree | c399f17f5b2dfacbf6df399dd1df8b15c7573fbe /lib | |
parent | 95b3692d9c22c659312acb466d0608bf8509f296 (diff) | |
parent | 0634a632f5dea8281ae7c9a96800582ff9eb1475 (diff) |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
asm-generic: add dummy pgprot_noncached()
lib/checksum.c: fix endianess bug
asm-generic: hook up new system calls
asm-generic: list Arnd as asm-generic maintainer
asm-generic: drop HARDIRQ_BITS definition from hardirq.h
asm-generic: uaccess: fix up local access_ok() usage
asm-generic: uaccess: add missing access_ok() check to strnlen_user()
Diffstat (limited to 'lib')
-rw-r--r-- | lib/checksum.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/lib/checksum.c b/lib/checksum.c index 12e5a1c91cda..b2e2fd468461 100644 --- a/lib/checksum.c +++ b/lib/checksum.c | |||
@@ -55,7 +55,11 @@ static unsigned int do_csum(const unsigned char *buff, int len) | |||
55 | goto out; | 55 | goto out; |
56 | odd = 1 & (unsigned long) buff; | 56 | odd = 1 & (unsigned long) buff; |
57 | if (odd) { | 57 | if (odd) { |
58 | #ifdef __LITTLE_ENDIAN | ||
58 | result = *buff; | 59 | result = *buff; |
60 | #else | ||
61 | result += (*buff << 8); | ||
62 | #endif | ||
59 | len--; | 63 | len--; |
60 | buff++; | 64 | buff++; |
61 | } | 65 | } |
@@ -71,7 +75,7 @@ static unsigned int do_csum(const unsigned char *buff, int len) | |||
71 | if (count) { | 75 | if (count) { |
72 | unsigned long carry = 0; | 76 | unsigned long carry = 0; |
73 | do { | 77 | do { |
74 | unsigned long w = *(unsigned long *) buff; | 78 | unsigned long w = *(unsigned int *) buff; |
75 | count--; | 79 | count--; |
76 | buff += 4; | 80 | buff += 4; |
77 | result += carry; | 81 | result += carry; |
@@ -87,7 +91,11 @@ static unsigned int do_csum(const unsigned char *buff, int len) | |||
87 | } | 91 | } |
88 | } | 92 | } |
89 | if (len & 1) | 93 | if (len & 1) |
94 | #ifdef __LITTLE_ENDIAN | ||
95 | result += *buff; | ||
96 | #else | ||
90 | result += (*buff << 8); | 97 | result += (*buff << 8); |
98 | #endif | ||
91 | result = from32to16(result); | 99 | result = from32to16(result); |
92 | if (odd) | 100 | if (odd) |
93 | result = ((result >> 8) & 0xff) | ((result & 0xff) << 8); | 101 | result = ((result >> 8) & 0xff) | ((result & 0xff) << 8); |