fortify: Do not cast to "unsigned char"
[ Upstream commite9a40e1585
] Do not cast to "unsigned char", as this needlessly creates type problems when attempting builds without -Wno-pointer-sign[1]. The intent of the cast is to drop possible "const" types. [1] https://lore.kernel.org/lkml/CAHk-=wgz3Uba8w7kdXhsqR1qvfemYL+OFQdefJnkeqXG8qZ_pA@mail.gmail.com/ Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Fixes:3009f891bb
("fortify: Allow strlen() and strnlen() to pass compile-time known lengths") Cc: linux-hardening@vger.kernel.org Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
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@ -18,7 +18,7 @@ void __write_overflow_field(size_t avail, size_t wanted) __compiletime_warning("
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#define __compiletime_strlen(p) \
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({ \
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unsigned char *__p = (unsigned char *)(p); \
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char *__p = (char *)(p); \
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size_t __ret = SIZE_MAX; \
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size_t __p_size = __member_size(p); \
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if (__p_size != SIZE_MAX && \
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