Messages in this thread Patch in this message | | | Date | Thu, 22 Apr 2021 21:58:40 +0300 | From | Alexey Dobriyan <> | Subject | [PATCH] x86: delete UD0, UD1 traces |
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Both instructions aren't used by kernel.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> ---
arch/x86/include/asm/bug.h | 9 --------- 1 file changed, 9 deletions(-)
--- a/arch/x86/include/asm/bug.h +++ b/arch/x86/include/asm/bug.h @@ -7,18 +7,9 @@ /* * Despite that some emulators terminate on UD2, we use it for WARN(). - * - * Since various instruction decoders/specs disagree on the encoding of - * UD0/UD1. */ - -#define ASM_UD0 ".byte 0x0f, 0xff" /* + ModRM (for Intel) */ -#define ASM_UD1 ".byte 0x0f, 0xb9" /* + ModRM */ #define ASM_UD2 ".byte 0x0f, 0x0b" - -#define INSN_UD0 0xff0f #define INSN_UD2 0x0b0f - #define LEN_UD2 2 #ifdef CONFIG_GENERIC_BUG
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