From: Guo Ren <guoren@xxxxxxxxxxxxxxxxx> There is no user return for RESTORE_REGS_FTRACE, so it's no need to save sp into ss0 as RESTORE_REGS_ALL. Signed-off-by: Guo Ren <guoren@xxxxxxxxxxxxxxxxx> Cc: Arnd Bergmann <arnd@xxxxxxxx> --- arch/csky/abiv2/inc/abi/entry.h | 3 --- 1 file changed, 3 deletions(-) diff --git a/arch/csky/abiv2/inc/abi/entry.h b/arch/csky/abiv2/inc/abi/entry.h index 4fdd6c1..bedcc6f 100644 --- a/arch/csky/abiv2/inc/abi/entry.h +++ b/arch/csky/abiv2/inc/abi/entry.h @@ -136,8 +136,6 @@ .macro RESTORE_REGS_FTRACE ldw tls, (sp, 0) - ldw a0, (sp, 16) - mtcr a0, ss0 #ifdef CONFIG_CPU_HAS_HILO ldw a0, (sp, 140) @@ -158,7 +156,6 @@ addi sp, 40 ldm r16-r30, (sp) addi sp, 72 - mfcr sp, ss0 .endm .macro SAVE_SWITCH_STACK -- 2.7.4
