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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-23 11:34:24 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-23 11:34:24 -0700 |
| commit | defe9104833b5ad309447bbc1fcb8e5981b2d3e1 (patch) | |
| tree | c399f17f5b2dfacbf6df399dd1df8b15c7573fbe /lib | |
| parent | 95b3692d9c22c659312acb466d0608bf8509f296 (diff) | |
| parent | 0634a632f5dea8281ae7c9a96800582ff9eb1475 (diff) | |
| download | lwn-defe9104833b5ad309447bbc1fcb8e5981b2d3e1.tar.gz lwn-defe9104833b5ad309447bbc1fcb8e5981b2d3e1.zip | |
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) goto out; odd = 1 & (unsigned long) buff; if (odd) { +#ifdef __LITTLE_ENDIAN result = *buff; +#else + result += (*buff << 8); +#endif len--; buff++; } @@ -71,7 +75,7 @@ static unsigned int do_csum(const unsigned char *buff, int len) if (count) { unsigned long carry = 0; do { - unsigned long w = *(unsigned long *) buff; + unsigned long w = *(unsigned int *) buff; count--; buff += 4; result += carry; @@ -87,7 +91,11 @@ static unsigned int do_csum(const unsigned char *buff, int len) } } if (len & 1) +#ifdef __LITTLE_ENDIAN + result += *buff; +#else result += (*buff << 8); +#endif result = from32to16(result); if (odd) result = ((result >> 8) & 0xff) | ((result & 0xff) << 8); |