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author | Kees Cook <keescook@chromium.org> | 2020-08-12 23:47:03 +0200 |
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committer | Kees Cook <keescook@chromium.org> | 2020-10-13 00:19:07 +0200 |
commit | 9b80e4c4ddaca3501177ed41e49d0928ba2122a8 (patch) | |
tree | d8cc43471bb6c5eb4e5d60545f45b0a87705115f /Documentation/admin-guide | |
parent | Linux 5.9-rc1 (diff) | |
download | linux-9b80e4c4ddaca3501177ed41e49d0928ba2122a8.tar.xz linux-9b80e4c4ddaca3501177ed41e49d0928ba2122a8.zip |
overflow: Add __must_check attribute to check_*() helpers
Since the destination variable of the check_*_overflow() helpers will
contain a wrapped value on failure, it would be best to make sure callers
really did check the return result of the helper. Adjust the macros to use
a bool-wrapping static inline that is marked with __must_check. This means
the macros can continue to have their type-agnostic behavior while gaining
the function attribute (that cannot be applied directly to macros).
Suggested-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Link: https://lore.kernel.org/lkml/202008151007.EF679DF@keescook/
Signed-off-by: Kees Cook <keescook@chromium.org>
Diffstat (limited to 'Documentation/admin-guide')
0 files changed, 0 insertions, 0 deletions