powerpc/32: Return directly from power_save_ppc32_restore()
transfer_to_handler_cont: is now just a blr.
Directly perform blr in power_save_ppc32_restore().
Also remove useless setting of r11 in e500 version of
power_save_ppc32_restore().
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/e337506e08a4df95b11d2290104b92f0dcdb5548.1615552867.git.christophe.leroy@csgroup.eu
diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S
index 46b3854..b9a2935 100644
--- a/arch/powerpc/kernel/entry_32.S
+++ b/arch/powerpc/kernel/entry_32.S
@@ -67,8 +67,6 @@
bt- 31-TLF_NAPPING,4f
bt- 31-TLF_SLEEPING,7f
#endif /* CONFIG_PPC_BOOK3S_32 || CONFIG_E500 */
- .globl transfer_to_handler_cont
-transfer_to_handler_cont:
blr
#if defined (CONFIG_PPC_BOOK3S_32) || defined(CONFIG_E500)
@@ -86,7 +84,6 @@
b fast_exception_return
#endif
_ASM_NOKPROBE_SYMBOL(prepare_transfer_to_handler)
-_ASM_NOKPROBE_SYMBOL(transfer_to_handler_cont)
.globl transfer_to_syscall
transfer_to_syscall:
diff --git a/arch/powerpc/kernel/idle_6xx.S b/arch/powerpc/kernel/idle_6xx.S
index 153366e..13cad92 100644
--- a/arch/powerpc/kernel/idle_6xx.S
+++ b/arch/powerpc/kernel/idle_6xx.S
@@ -176,7 +176,7 @@
lwz r9,nap_save_hid1@l(r9)
mtspr SPRN_HID1, r9
END_FTR_SECTION_IFSET(CPU_FTR_DUAL_PLL_750FX)
- b transfer_to_handler_cont
+ blr
_ASM_NOKPROBE_SYMBOL(power_save_ppc32_restore)
.data
diff --git a/arch/powerpc/kernel/idle_e500.S b/arch/powerpc/kernel/idle_e500.S
index 7795727..9e1bc45 100644
--- a/arch/powerpc/kernel/idle_e500.S
+++ b/arch/powerpc/kernel/idle_e500.S
@@ -81,13 +81,5 @@
_GLOBAL(power_save_ppc32_restore)
lwz r9,_LINK(r11) /* interrupted in e500_idle */
stw r9,_NIP(r11) /* make it do a blr */
-
-#ifdef CONFIG_SMP
- lwz r11,TASK_CPU(r2) /* get cpu number * 4 */
- slwi r11,r11,2
-#else
- li r11,0
-#endif
-
- b transfer_to_handler_cont
+ blr
_ASM_NOKPROBE_SYMBOL(power_save_ppc32_restore)