This is a note to let you know that I've just added the patch titled x86/asm: Fix SETZ size enqcmds() build failure to the 5.10-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: x86-asm-fix-setz-size-enqcmds-build-failure.patch and it can be found in the queue-5.10 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit d523d3959b31ca5bf0b9f985a47c398f613a28e4 Author: Kees Cook <keescook@xxxxxxxxxxxx> Date: Fri Sep 10 15:33:32 2021 -0700 x86/asm: Fix SETZ size enqcmds() build failure [ Upstream commit d81ff5fe14a950f53e2833cfa196e7bb3fd5d4e3 ] When building under GCC 4.9 and 5.5: arch/x86/include/asm/special_insns.h: Assembler messages: arch/x86/include/asm/special_insns.h:286: Error: operand size mismatch for `setz' Change the type to "bool" for condition code arguments, as documented. Fixes: 7f5933f81bd8 ("x86/asm: Add an enqcmds() wrapper for the ENQCMDS instruction") Co-developed-by: Arnd Bergmann <arnd@xxxxxxxx> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx> Signed-off-by: Borislav Petkov <bp@xxxxxxx> Link: https://lkml.kernel.org/r/20210910223332.3224851-1-keescook@xxxxxxxxxxxx Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/arch/x86/include/asm/special_insns.h b/arch/x86/include/asm/special_insns.h index 0cf19684dd20..415693f5d909 100644 --- a/arch/x86/include/asm/special_insns.h +++ b/arch/x86/include/asm/special_insns.h @@ -287,7 +287,7 @@ static inline int enqcmds(void __iomem *dst, const void *src) { const struct { char _[64]; } *__src = src; struct { char _[64]; } __iomem *__dst = dst; - int zf; + bool zf; /* * ENQCMDS %(rdx), rax