From: Alexey Dobriyan <adobriyan@gmail.com>
To: tglx@linutronix.de, mingo@redhat.com, bp@alien8.de
Cc: x86@kernel.org, hpa@zytor.com, linux-kernel@vger.kernel.org
Subject: [PATCH] x86: delete UD0, UD1 traces
Date: Thu, 22 Apr 2021 21:58:40 +0300 [thread overview]
Message-ID: <YIHHYNKbiSf5N7+o@localhost.localdomain> (raw)
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
next reply other threads:[~2021-04-22 18:58 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-22 18:58 Alexey Dobriyan [this message]
2021-05-06 12:14 ` [tip: x86/urgent] x86: Delete UD0, UD1 traces tip-bot2 for Alexey Dobriyan
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