tree 9db3bbeccc4329287960f42189ba4b1d4ee7a561
parent 849de0cd2c873c878fc2605156f10a8ade9bde28
author Kees Cook <keescook@chromium.org> 1487977238 -0800
committer Linus Torvalds <torvalds@linux-foundation.org> 1487987216 -0800

bug: switch data corruption check to __must_check

The CHECK_DATA_CORRUPTION() macro was designed to have callers do
something meaningful/protective on failure.  However, using "return
false" in the macro too strictly limits the design patterns of callers.
Instead, let callers handle the logic test directly, but make sure that
the result IS checked by forcing __must_check (which appears to not be
able to be used directly on macro expressions).

Link: http://lkml.kernel.org/r/20170206204547.GA125312@beast
Signed-off-by: Kees Cook <keescook@chromium.org>
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>