[PATCH 5/6] ARM: move FSR fault status definitions before fsr_fs()
Russell King (Oracle)
rmk+kernel at armlinux.org.uk
Fri Feb 27 07:19:28 PST 2026
The FSR's fault status bits depend on whether LPAE is enabled. Rather
than always exposing both LPAE and non-LPAE to all code, move them
inside the ifdef blocks dependent on LPAE to restrict their visibility.
No code other than fsr_fs() makes use of these.
Signed-off-by: Russell King (Oracle) <rmk+kernel at armlinux.org.uk>
---
arch/arm/mm/fault.h | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/arch/arm/mm/fault.h b/arch/arm/mm/fault.h
index d2bdedaefe14..44c0fad29cce 100644
--- a/arch/arm/mm/fault.h
+++ b/arch/arm/mm/fault.h
@@ -8,9 +8,6 @@
#define FSR_LNX_PF BIT(31)
#define FSR_CM BIT(13)
#define FSR_WRITE BIT(11)
-#define FSR_FS4 BIT(10)
-#define FSR_FS3_0 GENMASK(3, 0)
-#define FSR_FS5_0 GENMASK(5, 0)
#ifdef CONFIG_ARM_LPAE
#define FSR_FS_AEA 17
@@ -18,6 +15,8 @@
#define FS_PERM_NOLL 0xC
#define FS_MMU_NOLL_MASK 0x3C
+#define FSR_FS5_0 GENMASK(5, 0)
+
static inline int fsr_fs(unsigned int fsr)
{
return fsr & FSR_FS5_0;
@@ -29,6 +28,9 @@ static inline int fsr_fs(unsigned int fsr)
#define FS_L1_PERM 0xD
#define FS_L2_PERM 0xF
+#define FSR_FS4 BIT(10)
+#define FSR_FS3_0 GENMASK(3, 0)
+
static inline int fsr_fs(unsigned int fsr)
{
return (fsr & FSR_FS3_0) | (fsr & FSR_FS4) >> 6;
--
2.47.3
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