linux-kernel - [tip: x86/bugs] x86/rethunk: Use SYM_CODE_START[_LOCAL]

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Date:   Sat, 23 Sep 2023 12:20:07 -0000
From:   "tip-bot2 for Josh Poimboeuf" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Josh Poimboeuf <jpoimboe@...nel.org>,
        Ingo Molnar <mingo@...nel.org>,
        "Borislav Petkov (AMD)" <bp@...en8.de>, x86@...nel.org,
        linux-kernel@...r.kernel.org
Subject: [tip: x86/bugs] x86/rethunk: Use SYM_CODE_START[_LOCAL]_NOALIGN macros

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

Commit-ID:     642ff448c87d176aaf923597a70cb55baf2706ef
Gitweb:        https://git.kernel.org/tip/642ff448c87d176aaf923597a70cb55baf2706ef
Author:        Josh Poimboeuf <jpoimboe@...nel.org>
AuthorDate:    Mon, 04 Sep 2023 22:05:01 -07:00
Committer:     Ingo Molnar <mingo@...nel.org>
CommitterDate: Sat, 23 Sep 2023 14:13:03 +02:00

x86/rethunk: Use SYM_CODE_START[_LOCAL]_NOALIGN macros

Macros already exist for unaligned code block symbols.  Use them.

Signed-off-by: Josh Poimboeuf <jpoimboe@...nel.org>
Signed-off-by: Ingo Molnar <mingo@...nel.org>
Acked-by: Borislav Petkov (AMD) <bp@...en8.de>
Link: https://lore.kernel.org/r/26d461bd509cc840af24c94586561c06d39812b2.1693889988.git.jpoimboe@kernel.org
---
 arch/x86/lib/retpoline.S | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/x86/lib/retpoline.S b/arch/x86/lib/retpoline.S
index 8ba79d2..415521d 100644
--- a/arch/x86/lib/retpoline.S
+++ b/arch/x86/lib/retpoline.S
@@ -149,7 +149,7 @@ SYM_CODE_END(__x86_indirect_jump_thunk_array)
  * As a result, srso_alias_safe_ret() becomes a safe return.
  */
 	.pushsection .text..__x86.rethunk_untrain
-SYM_START(srso_alias_untrain_ret, SYM_L_GLOBAL, SYM_A_NONE)
+SYM_CODE_START_NOALIGN(srso_alias_untrain_ret)
 	UNWIND_HINT_FUNC
 	ANNOTATE_NOENDBR
 	ASM_NOP2
@@ -159,7 +159,7 @@ SYM_FUNC_END(srso_alias_untrain_ret)
 	.popsection
 
 	.pushsection .text..__x86.rethunk_safe
-SYM_START(srso_alias_safe_ret, SYM_L_GLOBAL, SYM_A_NONE)
+SYM_CODE_START_NOALIGN(srso_alias_safe_ret)
 	lea 8(%_ASM_SP), %_ASM_SP
 	UNWIND_HINT_FUNC
 	ANNOTATE_UNRET_SAFE
@@ -187,7 +187,7 @@ SYM_CODE_END(srso_alias_return_thunk)
  */
 	.align 64
 	.skip 64 - (srso_safe_ret - srso_untrain_ret), 0xcc
-SYM_START(srso_untrain_ret, SYM_L_LOCAL, SYM_A_NONE)
+SYM_CODE_START_LOCAL_NOALIGN(srso_untrain_ret)
 	ANNOTATE_NOENDBR
 	.byte 0x48, 0xb8
 
@@ -255,7 +255,7 @@ SYM_CODE_END(srso_return_thunk)
  */
 	.align 64
 	.skip 64 - (retbleed_return_thunk - retbleed_untrain_ret), 0xcc
-SYM_START(retbleed_untrain_ret, SYM_L_LOCAL, SYM_A_NONE)
+SYM_CODE_START_LOCAL_NOALIGN(retbleed_untrain_ret)
 	ANNOTATE_NOENDBR
 	/*
 	 * As executed from retbleed_untrain_ret, this is: