linux-kernel - [PATCH 5.10 80/83] x86/entry: Correct reference to intended CONFIG_64

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Message-Id: <20211011134511.130340692@linuxfoundation.org>
Date:   Mon, 11 Oct 2021 15:46:40 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Randy Dunlap <rdunlap@...radead.org>,
        Lukas Bulwahn <lukas.bulwahn@...il.com>,
        Borislav Petkov <bp@...e.de>
Subject: [PATCH 5.10 80/83] x86/entry: Correct reference to intended CONFIG_64_BIT

From: Lukas Bulwahn <lukas.bulwahn@...il.com>

commit 2c861f2b859385e9eaa6e464a8a7435b5a6bf564 upstream.

Commit in Fixes adds a condition with IS_ENABLED(CONFIG_64_BIT),
but the intended config item is called CONFIG_64BIT, as defined in
arch/x86/Kconfig.

Fortunately, scripts/checkkconfigsymbols.py warns:

64_BIT
Referencing files: arch/x86/include/asm/entry-common.h

Correct the reference to the intended config symbol.

Fixes: 662a0221893a ("x86/entry: Fix AC assertion")
Suggested-by: Randy Dunlap <rdunlap@...radead.org>
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@...il.com>
Signed-off-by: Borislav Petkov <bp@...e.de>
Cc: <stable@...r.kernel.org>
Link: https://lkml.kernel.org/r/20210803113531.30720-2-lukas.bulwahn@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 arch/x86/include/asm/entry-common.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/x86/include/asm/entry-common.h
+++ b/arch/x86/include/asm/entry-common.h
@@ -24,7 +24,7 @@ static __always_inline void arch_check_u
 		 * For !SMAP hardware we patch out CLAC on entry.
 		 */
 		if (boot_cpu_has(X86_FEATURE_SMAP) ||
-		    (IS_ENABLED(CONFIG_64_BIT) && boot_cpu_has(X86_FEATURE_XENPV)))
+		    (IS_ENABLED(CONFIG_64BIT) && boot_cpu_has(X86_FEATURE_XENPV)))
 			mask |= X86_EFLAGS_AC;
 
 		WARN_ON_ONCE(flags & mask);