linux-kernel - [PATCH 1/9] x86/entry: correct reference to intended CONFIG_64

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Date:   Tue,  3 Aug 2021 13:35:23 +0200
From:   Lukas Bulwahn <lukas.bulwahn@...il.com>
To:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        x86@...nel.org, Randy Dunlap <rdunlap@...radead.org>
Cc:     "H . Peter Anvin" <hpa@...or.com>,
        Darren Hart <dvhart@...radead.org>,
        Andy Shevchenko <andy@...radead.org>,
        Lubomir Rintel <lkundrak@...sk>, Pavel Machek <pavel@....cz>,
        Lee Jones <lee.jones@...aro.org>,
        "Rafael J . Wysocki" <rafael.j.wysocki@...el.com>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        platform-driver-x86@...r.kernel.org,
        kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org,
        Lukas Bulwahn <lukas.bulwahn@...il.com>
Subject: [PATCH 1/9] x86/entry: correct reference to intended CONFIG_64_BIT

Commit 662a0221893a ("x86/entry: Fix AC assertion") adds a condition with
IS_ENABLED(CONFIG_64_BIT), but the intended config 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>
---
 arch/x86/include/asm/entry-common.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/include/asm/entry-common.h b/arch/x86/include/asm/entry-common.h
index 14ebd2196569..43184640b579 100644
--- a/arch/x86/include/asm/entry-common.h
+++ b/arch/x86/include/asm/entry-common.h
@@ -25,7 +25,7 @@ static __always_inline void arch_check_user_regs(struct pt_regs *regs)
 		 * 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);
-- 
2.17.1