[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>

3 files changed, 16 insertions, 20 deletions

diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index 37723bfb96a6..fc1428905472 100644
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -118,7 +118,7 @@ __dabt_svc:
         @
         @ 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 @@ __und_svc:
         @
         @ 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 @@ __pabt_svc:
         @
         @ 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 @@ __dabt_usr:
         @
         @ 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 @@ call_fpe:
         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 @@ fpundefinstr:
 __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 53a7e0dea44d..0cd9f7bcaad7 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 @@ work_pending:
         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 @@ work_resched:
  */
 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 @@ ENTRY(vector_swi)
         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 4039d8c120b5..109f4f10d314 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