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authorEric W. Biederman <ebiederm@xmission.com>2006-03-23 02:59:35 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-03-23 07:38:04 -0800
commit30e931d4092713cecd6b8c2fd70f268efaa6e428 (patch)
treee7425d6e23720399d4f1a3078e63e03d62ca1d63 /arch/i386/kernel/cpu/common.c
parent4f88651125e2ca8b106b6f65b65ea45776517bf3 (diff)
[PATCH] i386: Add a temporary to make put_user more type safe
In some code I am developing I had occasion to change the type of a variable. This made the value put_user was putting to user space wrong. But the code continued to build cleanly without errors. Introducing a temporary fixes this problem and at least with gcc-3.3.5 does not cause gcc any problems with optimizing out the temporary. gcc-4.x using SSA internally ought to be even better at optimizing out temporaries, so I don't expect a temporary to become a problem. Especially because in all correct cases the types on both sides of the assignment to the temporary are the same. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/i386/kernel/cpu/common.c')
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