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authorVasily Gorbik <gor@linux.ibm.com>2018-09-14 17:35:46 +0200
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2018-09-20 13:20:29 +0200
commit4e62d458850069c9f05e03f99be1a817967e201f (patch)
tree36930d2ada8892e0b888c1cddcf9cba830b36c33 /arch/s390/kernel/swsusp.S
parent26f4414a45b808f83d42d6fd2fbf4a59ef25e84b (diff)
s390: clean up stacks setup
Replace hard coded stack frame overhead values with STACK_FRAME_OVERHEAD definition. Avoid unnecessary arithmetic instructions. Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/swsusp.S')
-rw-r--r--arch/s390/kernel/swsusp.S4
1 files changed, 1 insertions, 3 deletions
diff --git a/arch/s390/kernel/swsusp.S b/arch/s390/kernel/swsusp.S
index c1a080b11ae9..34b014b5cf03 100644
--- a/arch/s390/kernel/swsusp.S
+++ b/arch/s390/kernel/swsusp.S
@@ -197,9 +197,7 @@ pgm_check_entry:
brc 2,3b /* busy, try again */
/* Suspend CPU not available -> panic */
- larl %r15,init_thread_union
- aghi %r15,1<<(PAGE_SHIFT+THREAD_SIZE_ORDER)
- aghi %r15,-STACK_FRAME_OVERHEAD
+ larl %r15,init_thread_union+THREAD_SIZE-STACK_FRAME_OVERHEAD
larl %r2,.Lpanic_string
brasl %r14,sclp_early_printk_force
larl %r3,.Ldisabled_wait_31