diff options
| author | Vasily Gorbik <gor@linux.ibm.com> | 2018-09-14 17:35:46 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2018-09-20 13:20:29 +0200 |
| commit | 4e62d458850069c9f05e03f99be1a817967e201f (patch) | |
| tree | 36930d2ada8892e0b888c1cddcf9cba830b36c33 /arch/s390/boot/head.S | |
| parent | 26f4414a45b808f83d42d6fd2fbf4a59ef25e84b (diff) | |
| download | linux-4e62d458850069c9f05e03f99be1a817967e201f.tar.bz2 | |
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/boot/head.S')
| -rw-r--r-- | arch/s390/boot/head.S | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/s390/boot/head.S b/arch/s390/boot/head.S index f1cdca8ad3cc..d0736a05bc7f 100644 --- a/arch/s390/boot/head.S +++ b/arch/s390/boot/head.S @@ -311,7 +311,6 @@ ENTRY(startup_kdump) spt 6f-.LPG0(%r13) mvc __LC_LAST_UPDATE_TIMER(8),6f-.LPG0(%r13) l %r15,.Lstack-.LPG0(%r13) - ahi %r15,-STACK_FRAME_OVERHEAD brasl %r14,verify_facilities #ifdef CONFIG_KERNEL_UNCOMPRESSED jg startup_continue @@ -320,7 +319,7 @@ ENTRY(startup_kdump) #endif .Lstack: - .long 0x8000 + (1<<(PAGE_SHIFT+THREAD_SIZE_ORDER)) + .long 0x8000 + THREAD_SIZE - STACK_FRAME_OVERHEAD .align 8 6: .long 0x7fffffff,0xffffffff |