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* [PATCH] x86: delete UD0, UD1 traces
@ 2021-04-22 18:58 Alexey Dobriyan
  2021-05-06 12:14 ` [tip: x86/urgent] x86: Delete " tip-bot2 for Alexey Dobriyan
  0 siblings, 1 reply; 2+ messages in thread
From: Alexey Dobriyan @ 2021-04-22 18:58 UTC (permalink / raw)
  To: tglx, mingo, bp; +Cc: x86, hpa, linux-kernel

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

^ permalink raw reply	[flat|nested] 2+ messages in thread

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2021-04-22 18:58 [PATCH] x86: delete UD0, UD1 traces Alexey Dobriyan
2021-05-06 12:14 ` [tip: x86/urgent] x86: Delete " tip-bot2 for Alexey Dobriyan

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