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| author | Julien Thierry <julien.thierry@arm.com> | 2019-01-31 14:58:40 +0000 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2019-02-06 10:05:17 +0000 |
| commit | a82785a953e03444fe38616aed4d27b01da79a97 (patch) | |
| tree | be521f39c36abd03c97c324b215ca717cfda3786 /arch | |
| parent | 5870970b9a828d8693aa6d15742573289d7dbcd0 (diff) | |
| download | linux-stable-a82785a953e03444fe38616aed4d27b01da79a97.tar.gz linux-stable-a82785a953e03444fe38616aed4d27b01da79a97.tar.bz2 linux-stable-a82785a953e03444fe38616aed4d27b01da79a97.zip | |
arm64: Remove unused daif related functions/macros
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.thierry@arm.com>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: James Morse <james.morse@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm64/include/asm/assembler.h | 10 | ||||
| -rw-r--r-- | arch/arm64/include/asm/daifflags.h | 10 |
2 files changed, 1 insertions, 19 deletions
diff --git a/arch/arm64/include/asm/assembler.h b/arch/arm64/include/asm/assembler.h index 4feb6119c3c9..7acf2436b578 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 8d91f2233135..546bc398553e 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)) |