[PATCH 2/4] powerpc/64s: use mmu_has_feature in set_kuap() and get_kuap()
Nicholas Piggin
npiggin at gmail.com
Fri Mar 27 18:02:38 AEDT 2020
Commit 8150a153c013 ("powerpc/64s: Use early_mmu_has_feature() in
set_kuap()"), had to switch to using the _early feature test, because
probe_kernel_read was being called very early. After the previous
patch, probe_kernel_read no longer touches kuap, so it can go back to
using the non-_early variant, for better performance.
Signed-off-by: Nicholas Piggin <npiggin at gmail.com>
---
arch/powerpc/include/asm/book3s/64/kup-radix.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/include/asm/book3s/64/kup-radix.h b/arch/powerpc/include/asm/book3s/64/kup-radix.h
index 3bcef989a35d..67a7fd0182e6 100644
--- a/arch/powerpc/include/asm/book3s/64/kup-radix.h
+++ b/arch/powerpc/include/asm/book3s/64/kup-radix.h
@@ -79,7 +79,7 @@ static inline void kuap_check_amr(void)
static inline unsigned long get_kuap(void)
{
- if (!early_mmu_has_feature(MMU_FTR_RADIX_KUAP))
+ if (!mmu_has_feature(MMU_FTR_RADIX_KUAP))
return 0;
return mfspr(SPRN_AMR);
@@ -87,7 +87,7 @@ static inline unsigned long get_kuap(void)
static inline void set_kuap(unsigned long value)
{
- if (!early_mmu_has_feature(MMU_FTR_RADIX_KUAP))
+ if (!mmu_has_feature(MMU_FTR_RADIX_KUAP))
return;
/*
--
2.23.0
More information about the Linuxppc-dev
mailing list