diff options
author | Zhen Lei <thunder.leizhen@huawei.com> | 2022-11-25 17:13:58 +0800 |
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committer | Al Viro <viro@zeniv.linux.org.uk> | 2022-11-25 15:43:39 -0500 |
commit | ea258f159da14a710f9cb88656558538b5ba5b76 (patch) | |
tree | 581f2519c1d3d0e184474076f5d7c1fa61a59a47 /fs/sysv | |
parent | cf260db405b1a159e9076220b40f5f02ac480525 (diff) |
get rid of INT_LIMIT, use type_max() instead
INT_LIMIT() tries to do what type_max() does, except that type_max()
doesn't rely upon undefined behaviour[*], might as well use type_max()
instead.
[*] if T is an N-bit signed integer type, the maximal value in T is
pow(2, N - 1) - 1, all right, but naive expression for that value
ends up with a couple of wraparounds and as usual for wraparounds
in signed types, that's an undefined behaviour. type_max() takes
care to avoid those...
Caught-by: UBSAN
Suggested-by: Eric Biggers <ebiggers@kernel.org>
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Reviewed-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/sysv')
0 files changed, 0 insertions, 0 deletions