[PATCH v2 2/5] x86: remove unneeded 64-bit dependency in arch_enter_from_user_mode()
From: Juergen Gross
Date: Fri Nov 04 2022 - 03:27:42 EST
The check for 64-bit mode when testing X86_FEATURE_XENPV isn't needed,
as Xen PV guests are no longer supported in 32-bit mode.
While at it switch from boot_cpu_has() to cpu_feature_enabled().
Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
---
arch/x86/include/asm/entry-common.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/x86/include/asm/entry-common.h b/arch/x86/include/asm/entry-common.h
index 674ed46d3ced..117903881fe4 100644
--- a/arch/x86/include/asm/entry-common.h
+++ b/arch/x86/include/asm/entry-common.h
@@ -24,8 +24,8 @@ static __always_inline void arch_enter_from_user_mode(struct pt_regs *regs)
/*
* For !SMAP hardware we patch out CLAC on entry.
*/
- if (boot_cpu_has(X86_FEATURE_SMAP) ||
- (IS_ENABLED(CONFIG_64BIT) && boot_cpu_has(X86_FEATURE_XENPV)))
+ if (cpu_feature_enabled(X86_FEATURE_SMAP) ||
+ cpu_feature_enabled(X86_FEATURE_XENPV))
mask |= X86_EFLAGS_AC;
WARN_ON_ONCE(flags & mask);
--
2.35.3