linux-kernel - [tip: x86/asm] x86/irq/32: Add missing clobber to inline asm

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Message-ID: <174108458303.14745.14098610716192022436.tip-bot2@tip-bot2>
Date: Tue, 04 Mar 2025 10:36:23 -0000
From: "tip-bot2 for Uros Bizjak" <tip-bot2@...utronix.de>
To: linux-tip-commits@...r.kernel.org
Cc: Uros Bizjak <ubizjak@...il.com>, Ingo Molnar <mingo@...nel.org>,
 Andy Lutomirski <luto@...nel.org>, Brian Gerst <brgerst@...il.com>,
 "H. Peter Anvin" <hpa@...or.com>,
 Linus Torvalds <torvalds@...ux-foundation.org>,
 Peter Zijlstra <peterz@...radead.org>, x86@...nel.org,
 linux-kernel@...r.kernel.org
Subject: [tip: x86/asm] x86/irq/32: Add missing clobber to inline asm

The following commit has been merged into the x86/asm branch of tip:

Commit-ID:     40d9cd9bb08cbe36900efd1600e2228698d52b4a
Gitweb:        https://git.kernel.org/tip/40d9cd9bb08cbe36900efd1600e2228698d52b4a
Author:        Uros Bizjak <ubizjak@...il.com>
AuthorDate:    Mon, 03 Mar 2025 16:54:22 +01:00
Committer:     Ingo Molnar <mingo@...nel.org>
CommitterDate: Tue, 04 Mar 2025 11:21:40 +01:00

x86/irq/32: Add missing clobber to inline asm

i386 ABI declares %edx as a call-clobbered register.

Signed-off-by: Uros Bizjak <ubizjak@...il.com>
Signed-off-by: Ingo Molnar <mingo@...nel.org>
Cc: Andy Lutomirski <luto@...nel.org>
Cc: Brian Gerst <brgerst@...il.com>
Cc: H. Peter Anvin <hpa@...or.com>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Link: https://lore.kernel.org/r/20250303155446.112769-2-ubizjak@gmail.com
---
 arch/x86/kernel/irq_32.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/irq_32.c b/arch/x86/kernel/irq_32.c
index c4719c4..eab4580 100644
--- a/arch/x86/kernel/irq_32.c
+++ b/arch/x86/kernel/irq_32.c
@@ -98,7 +98,7 @@ static inline int execute_on_irq_stack(int overflow, struct irq_desc *desc)
 		     "movl %[sp], %%esp"
 		     : "+a" (desc), [sp] "+b" (isp)
 		     : [thunk_target] "D" (desc->handle_irq)
-		     : "memory", "cc", "ecx");
+		     : "memory", "cc", "edx", "ecx");
 	return 1;
 }