diff options
| author | Huacai Chen <chenhc@lemote.com> | 2016-01-21 21:09:47 +0800 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2016-01-22 01:58:49 +0100 |
| commit | 6e52684467b2c135e07e638469cd1d78bd8286ac (patch) | |
| tree | d517fcae07e112e436f85206f8c94343271957cc | |
| parent | 503943e0e52bd3fbf014aa1d838ced37adb43121 (diff) | |
| download | linux-6e52684467b2c135e07e638469cd1d78bd8286ac.tar.bz2 | |
MIPS: Cleanup the unused __arch_local_irq_restore() function
In history, __arch_local_irq_restore() is only used by SMTC. However,
SMTC support has been removed since 3.16, this patch remove the unused
function.
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: Fuxin Zhang <zhangfx@lemote.com>
Cc: Zhangjin Wu <wuzhangjin@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12159/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| -rw-r--r-- | arch/mips/include/asm/irqflags.h | 30 | ||||
| -rw-r--r-- | arch/mips/lib/mips-atomic.c | 30 |
2 files changed, 1 insertions, 59 deletions
diff --git a/arch/mips/include/asm/irqflags.h b/arch/mips/include/asm/irqflags.h index e7b138b4b3d3..65c351e328cc 100644 --- a/arch/mips/include/asm/irqflags.h +++ b/arch/mips/include/asm/irqflags.h @@ -84,41 +84,11 @@ static inline void arch_local_irq_restore(unsigned long flags) : "memory"); } -static inline void __arch_local_irq_restore(unsigned long flags) -{ - __asm__ __volatile__( - " .set push \n" - " .set noreorder \n" - " .set noat \n" -#if defined(CONFIG_IRQ_MIPS_CPU) - /* - * Slow, but doesn't suffer from a relatively unlikely race - * condition we're having since days 1. - */ - " beqz %[flags], 1f \n" - " di \n" - " ei \n" - "1: \n" -#else - /* - * Fast, dangerous. Life is fun, life is good. - */ - " mfc0 $1, $12 \n" - " ins $1, %[flags], 0, 1 \n" - " mtc0 $1, $12 \n" -#endif - " " __stringify(__irq_disable_hazard) " \n" - " .set pop \n" - : [flags] "=r" (flags) - : "0" (flags) - : "memory"); -} #else /* Functions that require preempt_{dis,en}able() are in mips-atomic.c */ void arch_local_irq_disable(void); unsigned long arch_local_irq_save(void); void arch_local_irq_restore(unsigned long flags); -void __arch_local_irq_restore(unsigned long flags); #endif /* CONFIG_CPU_MIPSR2 || CONFIG_CPU_MIPSR6 */ static inline void arch_local_irq_enable(void) diff --git a/arch/mips/lib/mips-atomic.c b/arch/mips/lib/mips-atomic.c index 272af8ac2425..5530070e0d05 100644 --- a/arch/mips/lib/mips-atomic.c +++ b/arch/mips/lib/mips-atomic.c @@ -57,7 +57,6 @@ notrace void arch_local_irq_disable(void) } EXPORT_SYMBOL(arch_local_irq_disable); - notrace unsigned long arch_local_irq_save(void) { unsigned long flags; @@ -111,31 +110,4 @@ notrace void arch_local_irq_restore(unsigned long flags) } EXPORT_SYMBOL(arch_local_irq_restore); - -notrace void __arch_local_irq_restore(unsigned long flags) -{ - unsigned long __tmp1; - - preempt_disable(); - - __asm__ __volatile__( - " .set push \n" - " .set noreorder \n" - " .set noat \n" - " mfc0 $1, $12 \n" - " andi %[flags], 1 \n" - " ori $1, 0x1f \n" - " xori $1, 0x1f \n" - " or %[flags], $1 \n" - " mtc0 %[flags], $12 \n" - " " __stringify(__irq_disable_hazard) " \n" - " .set pop \n" - : [flags] "=r" (__tmp1) - : "0" (flags) - : "memory"); - - preempt_enable(); -} -EXPORT_SYMBOL(__arch_local_irq_restore); - -#endif /* !CONFIG_CPU_MIPSR2 */ +#endif /* !CONFIG_CPU_MIPSR2 && !CONFIG_CPU_MIPSR6 */ |