[tip: locking/core] x86/kvm: Make kvm_async_pf_enabled __ro_after_init

[tip-bot2 for Valentin Schneider]

The following commit has been merged into the locking/core branch of tip:

Commit-ID:     ddd8afacc4f65a01204d7a36b8fd96c908e9b72c
Gitweb:        https://git.kernel.org/tip/ddd8afacc4f65a01204d7a36b8fd96c908e9b72c
Author:        Valentin Schneider <vschneid@xxxxxxxxxx>
AuthorDate:    Wed, 13 Mar 2024 19:01:05 +01:00
Committer:     Ingo Molnar <mingo@xxxxxxxxxx>
CommitterDate: Fri, 22 Mar 2024 11:18:19 +01:00

x86/kvm: Make kvm_async_pf_enabled __ro_after_init

kvm_async_pf_enabled is only ever enabled in __init kvm_guest_init(), so
mark it as __ro_after_init.

Signed-off-by: Valentin Schneider <vschneid@xxxxxxxxxx>
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
Reviewed-by: Sean Christopherson <seanjc@xxxxxxxxxx>
Acked-by: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20240313180106.2917308-4-vschneid@xxxxxxxxxx
---
 arch/x86/kernel/kvm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
index 4cadfd6..31a48ba 100644
--- a/arch/x86/kernel/kvm.c
+++ b/arch/x86/kernel/kvm.c
@@ -44,7 +44,7 @@
 #include <asm/svm.h>
 #include <asm/e820/api.h>
 
-DEFINE_STATIC_KEY_FALSE(kvm_async_pf_enabled);
+DEFINE_STATIC_KEY_FALSE_RO(kvm_async_pf_enabled);
 
 static int kvmapf = 1;