[RFC PATCH 4/5] Remove dead code

Jim Posen jim.posen at gmail.com
Mon Oct 25 01:58:07 CEST 2021


This code was missed in commit 01abae4d0486 ("Remove
various unused interrupt related code")

Signed-off-by: Jim Posen <jim.posen at gmail.com>
---

 arch/arm/lib/vectors.S | 32 +-------------------------------
 1 file changed, 1 insertion(+), 31 deletions(-)

diff --git a/arch/arm/lib/vectors.S b/arch/arm/lib/vectors.S
index 89b91b27da..a36e3b7a43 100644
--- a/arch/arm/lib/vectors.S
+++ b/arch/arm/lib/vectors.S
@@ -224,8 +224,7 @@ IRQ_STACK_START_IN:
 #define I_BIT	 0x80
 
 /*
- * use bad_save_user_regs for abort/prefetch/undef/swi ...
- * use irq_save_user_regs / irq_restore_user_regs for IRQ/FIQ handling
+ * use bad_save_user_regs for all exception types
  */
 
 	.macro	bad_save_user_regs
@@ -242,27 +241,6 @@ IRQ_STACK_START_IN:
 	mov	r0, sp		@ save current stack into r0 (param register)
 	.endm
 
-	.macro	irq_save_user_regs
-	sub	sp, sp, #S_FRAME_SIZE
-	stmia	sp, {r0 - r12}			@ Calling r0-r12
-	@ !!!! R8 NEEDS to be saved !!!! a reserved stack spot would be good.
-	add	r8, sp, #S_PC
-	stmdb	r8, {sp, lr}^		@ Calling SP, LR
-	str	lr, [r8, #0]		@ Save calling PC
-	mrs	r6, spsr
-	str	r6, [r8, #4]		@ Save CPSR
-	str	r0, [r8, #8]		@ Save OLD_R0
-	mov	r0, sp
-	.endm
-
-	.macro	irq_restore_user_regs
-	ldmia	sp, {r0 - lr}^			@ Calling r0 - lr
-	mov	r0, r0
-	ldr	lr, [sp, #S_PC]			@ Get PC
-	add	sp, sp, #S_FRAME_SIZE
-	subs	pc, lr, #4		@ return & move spsr_svc into cpsr
-	.endm
-
 	.macro get_bad_stack
 	ldr	r13, IRQ_STACK_START_IN		@ setup our mode stack
 
@@ -276,14 +254,6 @@ IRQ_STACK_START_IN:
 	movs	pc, lr		@ jump to next instruction & switch modes.
 	.endm
 
-	.macro get_irq_stack			@ setup IRQ stack
-	ldr	sp, IRQ_STACK_START
-	.endm
-
-	.macro get_fiq_stack			@ setup FIQ stack
-	ldr	sp, FIQ_STACK_START
-	.endm
-
 /*
  * exception handlers
  */
-- 
2.25.1



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