From 33ea04872da15ea8236f92da6009af5a1b0af641 Mon Sep 17 00:00:00 2001 From: Sven Schnelle Date: Wed, 3 Feb 2021 17:46:12 +0100 Subject: s390: use r13 in cleanup_sie as temp register Instead of thrashing r11 which is normally our pointer to struct pt_regs on the stack, use r13 as temporary register in the BR_EX macro. r13 is already used in cleanup_sie, so no need to thrash another register. Signed-off-by: Sven Schnelle Reviewed-by: Heiko Carstens Signed-off-by: Vasily Gorbik --- arch/s390/kernel/entry.S | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch/s390') diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S index 377294969954..d1236a9f73b2 100644 --- a/arch/s390/kernel/entry.S +++ b/arch/s390/kernel/entry.S @@ -130,7 +130,7 @@ _LPP_OFFSET = __LC_LPP .endm GEN_BR_THUNK %r14 - GEN_BR_THUNK %r14,%r11 + GEN_BR_THUNK %r14,%r13 .section .kprobes.text, "ax" .Ldummy: @@ -665,7 +665,7 @@ ENDPROC(stack_overflow) ni __SIE_PROG0C+3(%r9),0xfe # no longer in SIE lctlg %c1,%c1,__LC_KERNEL_ASCE larl %r9,sie_exit # skip forward to sie_exit - BR_EX %r14,%r11 + BR_EX %r14,%r13 #endif .section .rodata, "a" -- cgit