Commit-ID: 1acdbf7ea8a80706561013346d281d282a3c00f9 Gitweb: https://git.kernel.org/tip/1acdbf7ea8a80706561013346d281d282a3c00f9 Author: Alexey Dobriyan <[email protected]> AuthorDate: Sat, 13 Jan 2018 21:50:48 +0300 Committer: Ingo Molnar <[email protected]> CommitDate: Tue, 13 Feb 2018 17:36:49 +0100
x86/asm: Clobber flags in clear_page() All clear_page() implementations use XOR which resets flags. Judging by allyesconfig disassembly no code is affected. Signed-off-by: Alexey Dobriyan <[email protected]> Reviewed-by: Borislav Petkov <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Gleixner <[email protected]> Link: http://lkml.kernel.org/r/20180113185048.GA23111@avx2 Signed-off-by: Ingo Molnar <[email protected]> --- arch/x86/include/asm/page_64.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/include/asm/page_64.h b/arch/x86/include/asm/page_64.h index 4baa6bc..f8a85c6 100644 --- a/arch/x86/include/asm/page_64.h +++ b/arch/x86/include/asm/page_64.h @@ -47,7 +47,7 @@ static inline void clear_page(void *page) clear_page_erms, X86_FEATURE_ERMS, "=D" (page), "0" (page) - : "memory", "rax", "rcx"); + : "cc", "memory", "rax", "rcx"); } void copy_page(void *to, void *from);
