ARM: entry: move disable_irq_notrace into svc_exit

All svc exit paths need IRQs off.  Rather than placing this before
every user of svc_exit, combine it into this macro.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/kernel/entry-armv.S

@@ -192,11 +192,6 @@ __dabt_svc:
 	svc_entry
 	mov	r2, sp
 	dabt_helper
-
-	@
-	@ IRQs off again before pulling preserved data off the stack
-	@
-	disable_irq_notrace
 	svc_exit r5				@ return from exception
  UNWIND(.fnend		)
 ENDPROC(__dabt_svc)
@@ -283,15 +278,7 @@ __und_svc_fault:
 	mov	r0, sp				@ struct pt_regs *regs
 	bl	__und_fault
 
-	@
-	@ IRQs off again before pulling preserved data off the stack
-	@
 __und_svc_finish:
-	disable_irq_notrace
-
-	@
-	@ restore SPSR and restart the instruction
-	@
 	ldr	r5, [sp, #S_PSR]		@ Get SVC cpsr
 	svc_exit r5				@ return from exception
  UNWIND(.fnend		)
@@ -302,11 +289,6 @@ __pabt_svc:
 	svc_entry
 	mov	r2, sp				@ regs
 	pabt_helper
-
-	@
-	@ IRQs off again before pulling preserved data off the stack
-	@
-	disable_irq_notrace
 	svc_exit r5				@ return from exception
  UNWIND(.fnend		)
 ENDPROC(__pabt_svc)