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* [ARM] 4837/1: make __get_unaligned_*() return unsigned typesLennert Buytenhek2008-02-291-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | Eric Sandeen tracked an XFS on ARM corruption bug down to a function under fs/xfs/ involving some get_unaligned() calls on u64 pointers. As it turns out, calling ARM's get_unaligned() on a u64 pointer pointing to the following byte sequence: 80 81 82 83 84 85 86 87 would return ffffffff83828180 (LE mode.) This turns out to be because of implicit u8 -> int promotion in ARM's implementation of various helpers for get_unaligned(), causing them to accidentally return signed instead of unsigned values, which in turn caused the subsequent casts to unsigned long long in __get_unaligned_8_[bl]e() to sign-extend the lower words. Fix by casting the return values of __get_unaligned_[24]_[bl]e() to unsigned int. Cc: Eric Sandeen <sandeen@sandeen.net> Cc: Rabeeh Khoury <rabeeh@marvell.com> Cc: Nicolas Pitre <nico@marvell.com> Signed-off-by: Lennert Buytenhek <buytenh@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* arm unaligned.h annotationsAl Viro2007-07-261-10/+12
| | | | | | | | | | | Have put_unaligned() warn if types would be wrong for assignment, slap force-casts where needed. Cast the result of get_unaligned to typeof(*ptr). With that in place we get proper typechecking, both from gcc and from sparse, including that for bitwise types. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [ARM] 3849/1: fix get_unaligned() for gcc >= 4.1Lennert Buytenhek2006-09-251-37/+25
| | | | | | | | gcc 4.1's __typeof__ propagates 'const', which breaks get_unaligned(). Rewrite get_unaligned() not to use __typeof__. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds2005-04-171-0/+191
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!