Replace the open coded PC relative offset calculations with adr_l
and ldr_l invocations.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx>
---
arch/arm/kernel/head.S | 19 ++++---------------
1 file changed, 4 insertions(+), 15 deletions(-)
diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S
index 0a98aec0e39d..6e9df3663a57 100644
--- a/arch/arm/kernel/head.S
+++ b/arch/arm/kernel/head.S
@@ -386,10 +386,8 @@ ENTRY(secondary_startup)
/*
* Use the page tables supplied from __cpu_up.
*/
- adr r4, __secondary_data
- ldmia r4, {r5, r7, r12} @ address to jump to after
- sub lr, r4, r5 @ mmu has been enabled
- add r3, r7, lr
+ adr_l r3, secondary_data
+ mov_l r12, __secondary_switched
ldrd r4, [r3, #0] @ get secondary_data.pgdir
ARM_BE8(eor r4, r4, r5) @ Swap r5 and r4 in BE:
ARM_BE8(eor r5, r4, r5) @ it can be done in 3 steps
@@ -404,22 +402,13 @@ ARM_BE8(eor r4, r4, r5) @ without using a temp reg.
ENDPROC(secondary_startup)
ENDPROC(secondary_startup_arm)
- /*
- * r6 = &secondary_data
- */
ENTRY(__secondary_switched)
- ldr sp, [r7, #12] @ get secondary_data.stack
+ ldr_l r7, secondary_data + 12 @ get secondary_data.stack
+ mov sp, r7
mov fp, #0
b secondary_start_kernel
ENDPROC(__secondary_switched)
- .align
-
- .type __secondary_data, %object
-__secondary_data:
- .long .
- .long secondary_data
- .long __secondary_switched
#endif /* defined(CONFIG_SMP) */
--
2.11.0
