There are some helpers to modify PSR.[DAIF] bits that are not referenced
anywhere. The less these bits are available outside of local_irq_*
functions the better.
Get rid of those unused helpers.
Signed-off-by: Julien Thierry <julien.thie...@arm.com>
Reviewed-by: Mark Rutland <mark.rutl...@arm.com>
Acked-by: Catalin Marinas <catalin.mari...@arm.com>
Cc: Catalin Marinas <catalin.mari...@arm.com>
Cc: Will Deacon <will.dea...@arm.com>
Cc: James Morse <james.mo...@arm.com>
---
arch/arm64/include/asm/assembler.h | 10 +---------
arch/arm64/include/asm/daifflags.h | 10 ----------
2 files changed, 1 insertion(+), 19 deletions(-)
diff --git a/arch/arm64/include/asm/assembler.h
b/arch/arm64/include/asm/assembler.h
index 4feb611..7acf243 100644
--- a/arch/arm64/include/asm/assembler.h
+++ b/arch/arm64/include/asm/assembler.h
@@ -62,16 +62,8 @@
.endm
/*
- * Enable and disable interrupts.
+ * Save/restore interrupts.
*/
- .macro disable_irq
- msr daifset, #2
- .endm
-
- .macro enable_irq
- msr daifclr, #2
- .endm
-
.macro save_and_disable_irq, flags
mrs \flags, daif
msr daifset, #2
diff --git a/arch/arm64/include/asm/daifflags.h
b/arch/arm64/include/asm/daifflags.h
index 8d91f22..546bc39 100644
--- a/arch/arm64/include/asm/daifflags.h
+++ b/arch/arm64/include/asm/daifflags.h
@@ -43,16 +43,6 @@ static inline unsigned long local_daif_save(void)
return flags;
}
-static inline void local_daif_unmask(void)
-{
- trace_hardirqs_on();
- asm volatile(
- "msr daifclr, #0xf // local_daif_unmask"
- :
- :
- : "memory");
-}
-
static inline void local_daif_restore(unsigned long flags)
{
if (!arch_irqs_disabled_flags(flags))
--
1.9.1
