[PATCH] ARM: Remove argument for disable_irq/enable_irq
Since we do not require a register for these operations, we can
remove this unnecessary argument.
Signed-off-by: Russell King <rmk@arm.linux.org.uk>
diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index 37723bf..fc14289 100644
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -118,7 +118,7 @@
@
@ IRQs off again before pulling preserved data off the stack
@
- disable_irq r0
+ disable_irq
@
@ restore SPSR and restart the instruction
@@ -198,7 +198,7 @@
@
@ IRQs off again before pulling preserved data off the stack
@
-1: disable_irq r0
+1: disable_irq
@
@ restore SPSR and restart the instruction
@@ -232,7 +232,7 @@
@
@ IRQs off again before pulling preserved data off the stack
@
- disable_irq r0
+ disable_irq
@
@ restore SPSR and restart the instruction
@@ -316,7 +316,7 @@
@
@ IRQs on, then call the main handler
@
- enable_irq r2
+ enable_irq
mov r2, sp
adr lr, ret_from_exception
b do_DataAbort
@@ -418,7 +418,7 @@
movcss r7, r5, lsr #(TIF_USING_IWMMXT + 1)
bcs iwmmxt_task_enable
#endif
- enable_irq r7
+ enable_irq
add pc, pc, r8, lsr #6
mov r0, r0
@@ -472,7 +472,7 @@
__pabt_usr:
usr_entry abt
- enable_irq r0 @ Enable interrupts
+ enable_irq @ Enable interrupts
mov r0, r2 @ address (pc)
mov r1, sp @ regs
bl do_PrefetchAbort @ call abort handler
diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S
index 53a7e0d..0cd9f7b 100644
--- a/arch/arm/kernel/entry-common.S
+++ b/arch/arm/kernel/entry-common.S
@@ -30,7 +30,7 @@
* stack.
*/
ret_fast_syscall:
- disable_irq r1 @ disable interrupts
+ disable_irq @ disable interrupts
ldr r1, [tsk, #TI_FLAGS]
tst r1, #_TIF_WORK_MASK
bne fast_work_pending
@@ -49,7 +49,7 @@
mov r0, sp @ 'regs'
mov r2, why @ 'syscall'
bl do_notify_resume
- disable_irq r1 @ disable interrupts
+ disable_irq @ disable interrupts
b no_work_pending
work_resched:
@@ -59,7 +59,7 @@
*/
ENTRY(ret_to_user)
ret_slow_syscall:
- disable_irq r1 @ disable interrupts
+ disable_irq @ disable interrupts
ldr r1, [tsk, #TI_FLAGS]
tst r1, #_TIF_WORK_MASK
bne work_pending
@@ -126,7 +126,7 @@
ldr ip, [ip]
mcr p15, 0, ip, c1, c0 @ update control register
#endif
- enable_irq ip
+ enable_irq
str r4, [sp, #-S_OFF]! @ push fifth arg
diff --git a/arch/arm/kernel/entry-header.S b/arch/arm/kernel/entry-header.S
index 4039d8c..109f4f1 100644
--- a/arch/arm/kernel/entry-header.S
+++ b/arch/arm/kernel/entry-header.S
@@ -63,25 +63,21 @@
#define S_R0 0
#define S_OFF 8
- .macro set_cpsr_c, reg, mode
- msr cpsr_c, \mode
- .endm
-
#if __LINUX_ARM_ARCH__ >= 6
- .macro disable_irq, temp
+ .macro disable_irq
cpsid i
.endm
- .macro enable_irq, temp
+ .macro enable_irq
cpsie i
.endm
#else
- .macro disable_irq, temp
- set_cpsr_c \temp, #PSR_I_BIT | MODE_SVC
+ .macro disable_irq
+ msr cpsr_c, #PSR_I_BIT | SVC_MODE
.endm
- .macro enable_irq, temp
- set_cpsr_c \temp, #MODE_SVC
+ .macro enable_irq
+ msr cpsr_c, #SVC_MODE
.endm
#endif
