diff options
| author | Sven Schnelle <svens@linux.ibm.com> | 2021-02-03 17:46:12 +0100 |
|---|---|---|
| committer | Vasily Gorbik <gor@linux.ibm.com> | 2021-02-13 17:17:53 +0100 |
| commit | 33ea04872da15ea8236f92da6009af5a1b0af641 (patch) | |
| tree | 73409f5cca53839f34ea90ca7c48bcd7c0efd4d3 /arch/s390/kernel/entry.S | |
| parent | 26521412ae22d06caab98721757b2721c6d7c46c (diff) | |
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 <svens@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'arch/s390/kernel/entry.S')
| -rw-r--r-- | arch/s390/kernel/entry.S | 4 |
1 files changed, 2 insertions, 2 deletions
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" |