linux-kernel - [tip: x86/core] x86/entry

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Date:   Mon, 13 Dec 2021 09:50:22 -0000
From:   "tip-bot2 for Peter Zijlstra" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     "Peter Zijlstra (Intel)" <peterz@...radead.org>,
        Josh Poimboeuf <jpoimboe@...hat.com>,
        Borislav Petkov <bp@...e.de>,
        Lai Jiangshan <jiangshanlai@...il.com>, x86@...nel.org,
        linux-kernel@...r.kernel.org
Subject: [tip: x86/core] x86/entry_64: Remove .fixup usage

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

Commit-ID:     16e617d05ef0c521d000c989796412ce713f28c9
Gitweb:        https://git.kernel.org/tip/16e617d05ef0c521d000c989796412ce713f28c9
Author:        Peter Zijlstra <peterz@...radead.org>
AuthorDate:    Wed, 10 Nov 2021 11:01:07 +01:00
Committer:     Peter Zijlstra <peterz@...radead.org>
CommitterDate: Sat, 11 Dec 2021 09:09:46 +01:00

x86/entry_64: Remove .fixup usage

Place the anonymous .fixup code at the tail of the regular functions.

Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
Reviewed-by: Josh Poimboeuf <jpoimboe@...hat.com>
Reviewed-by: Borislav Petkov <bp@...e.de>
Reviewed-by: Lai Jiangshan <jiangshanlai@...il.com>
Link: https://lore.kernel.org/r/20211110101325.186049322@infradead.org
---
 arch/x86/entry/entry_64.S | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S
index e23319a..1ffdbfa 100644
--- a/arch/x86/entry/entry_64.S
+++ b/arch/x86/entry/entry_64.S
@@ -739,13 +739,9 @@ SYM_FUNC_START(asm_load_gs_index)
 	swapgs
 	FRAME_END
 	RET
-SYM_FUNC_END(asm_load_gs_index)
-EXPORT_SYMBOL(asm_load_gs_index)
 
-	_ASM_EXTABLE(.Lgs_change, .Lbad_gs)
-	.section .fixup, "ax"
 	/* running with kernelgs */
-SYM_CODE_START_LOCAL_NOALIGN(.Lbad_gs)
+.Lbad_gs:
 	swapgs					/* switch back to user gs */
 .macro ZAP_GS
 	/* This can't be a string because the preprocessor needs to see it. */
@@ -756,8 +752,11 @@ SYM_CODE_START_LOCAL_NOALIGN(.Lbad_gs)
 	xorl	%eax, %eax
 	movl	%eax, %gs
 	jmp	2b
-SYM_CODE_END(.Lbad_gs)
-	.previous
+
+	_ASM_EXTABLE(.Lgs_change, .Lbad_gs)
+
+SYM_FUNC_END(asm_load_gs_index)
+EXPORT_SYMBOL(asm_load_gs_index)
 
 #ifdef CONFIG_XEN_PV
 /*