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

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Message-ID: <163938902273.23020.14400054755238776615.tip-bot2@tip-bot2>
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>, x86@...nel.org,
        linux-kernel@...r.kernel.org
Subject: [tip: x86/core] x86/copy_mc_64: Remove .fixup usage

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

Commit-ID:     ab0fedcc714aafaac6ac996b51791aee0d1cd8fd
Gitweb:        https://git.kernel.org/tip/ab0fedcc714aafaac6ac996b51791aee0d1cd8fd
Author:        Peter Zijlstra <peterz@...radead.org>
AuthorDate:    Wed, 10 Nov 2021 11:01:06 +01:00
Committer:     Peter Zijlstra <peterz@...radead.org>
CommitterDate: Sat, 11 Dec 2021 09:09:46 +01:00

x86/copy_mc_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>
Link: https://lore.kernel.org/r/20211110101325.127055887@infradead.org
---
 arch/x86/lib/copy_mc_64.S | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/arch/x86/lib/copy_mc_64.S b/arch/x86/lib/copy_mc_64.S
index 2300979..c859a8a 100644
--- a/arch/x86/lib/copy_mc_64.S
+++ b/arch/x86/lib/copy_mc_64.S
@@ -78,9 +78,7 @@ SYM_FUNC_START(copy_mc_fragile)
 	xorl %eax, %eax
 .L_done:
 	RET
-SYM_FUNC_END(copy_mc_fragile)
 
-	.section .fixup, "ax"
 	/*
 	 * Return number of bytes not copied for any failure. Note that
 	 * there is no "tail" handling since the source buffer is 8-byte
@@ -105,14 +103,14 @@ SYM_FUNC_END(copy_mc_fragile)
 	movl	%ecx, %edx
 	jmp copy_mc_fragile_handle_tail
 
-	.previous
-
 	_ASM_EXTABLE_TYPE(.L_read_leading_bytes, .E_leading_bytes, EX_TYPE_DEFAULT_MCE_SAFE)
 	_ASM_EXTABLE_TYPE(.L_read_words, .E_read_words, EX_TYPE_DEFAULT_MCE_SAFE)
 	_ASM_EXTABLE_TYPE(.L_read_trailing_bytes, .E_trailing_bytes, EX_TYPE_DEFAULT_MCE_SAFE)
 	_ASM_EXTABLE(.L_write_leading_bytes, .E_leading_bytes)
 	_ASM_EXTABLE(.L_write_words, .E_write_words)
 	_ASM_EXTABLE(.L_write_trailing_bytes, .E_trailing_bytes)
+
+SYM_FUNC_END(copy_mc_fragile)
 #endif /* CONFIG_X86_MCE */
 
 /*
@@ -133,9 +131,7 @@ SYM_FUNC_START(copy_mc_enhanced_fast_string)
 	/* Copy successful. Return zero */
 	xorl %eax, %eax
 	RET
-SYM_FUNC_END(copy_mc_enhanced_fast_string)
 
-	.section .fixup, "ax"
 .E_copy:
 	/*
 	 * On fault %rcx is updated such that the copy instruction could
@@ -147,7 +143,7 @@ SYM_FUNC_END(copy_mc_enhanced_fast_string)
 	movq %rcx, %rax
 	RET
 
-	.previous
-
 	_ASM_EXTABLE_TYPE(.L_copy, .E_copy, EX_TYPE_DEFAULT_MCE_SAFE)
+
+SYM_FUNC_END(copy_mc_enhanced_fast_string)
 #endif /* !CONFIG_UML */