[tip: x86/urgent] x86/entry: Correct reference to intended CONFIG_64_BIT

[tip-bot2 for Lukas Bulwahn]

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

Commit-ID:     2c861f2b859385e9eaa6e464a8a7435b5a6bf564
Gitweb:        https://git.kernel.org/tip/2c861f2b859385e9eaa6e464a8a7435b5a6bf564
Author:        Lukas Bulwahn <lukas.bulwahn@xxxxxxxxx>
AuthorDate:    Tue, 03 Aug 2021 13:35:23 +02:00
Committer:     Borislav Petkov <bp@xxxxxxx>
CommitterDate: Wed, 06 Oct 2021 18:46:02 +02:00

x86/entry: Correct reference to intended CONFIG_64_BIT

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@xxxxxxxxxxxxx>
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@xxxxxxxxx>
Signed-off-by: Borislav Petkov <bp@xxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
Link: https://lkml.kernel.org/r/20210803113531.30720-2-lukas.bulwahn@xxxxxxxxx
---
 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 14ebd21..4318464 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);