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[PATCH v2 2/5] x86: remove unneeded 64-bit dependency in arch_enter_from_user_mode()



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




 


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