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Subject[tip: x86/urgent] x86/asm: Fix SETZ size enqcmds() build failure
The following commit has been merged into the x86/urgent branch of tip:

Commit-ID: d81ff5fe14a950f53e2833cfa196e7bb3fd5d4e3
Gitweb: https://git.kernel.org/tip/d81ff5fe14a950f53e2833cfa196e7bb3fd5d4e3
Author: Kees Cook <keescook@chromium.org>
AuthorDate: Fri, 10 Sep 2021 15:33:32 -07:00
Committer: Borislav Petkov <bp@suse.de>
CommitterDate: Wed, 22 Sep 2021 19:45:48 +02:00

x86/asm: Fix SETZ size enqcmds() build failure

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@arndb.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20210910223332.3224851-1-keescook@chromium.org
---
arch/x86/include/asm/special_insns.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/include/asm/special_insns.h b/arch/x86/include/asm/special_insns.h
index f3fbb84..68c257a 100644
--- a/arch/x86/include/asm/special_insns.h
+++ b/arch/x86/include/asm/special_insns.h
@@ -275,7 +275,7 @@ 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
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