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authorTakashi Iwai <tiwai@suse.de>2016-03-08 09:49:43 (GMT)
committerTakashi Iwai <tiwai@suse.de>2016-03-08 09:49:43 (GMT)
commit56d94d70398f0fbb1863a03a145db1a86f009a71 (patch)
tree9e52dc537f8f8359c70b66f5000192bb280b41b9 /arch/s390/oprofile/backtrace.c
parentbb63f726f98bec032c7322a9c36eb4167307d856 (diff)
parentfc4f000bf8c0cbf38f44de6bd5e225574e572ed4 (diff)
downloadlinux-56d94d70398f0fbb1863a03a145db1a86f009a71.tar.xz
Merge branch 'topic/hda' into for-next
Diffstat (limited to 'arch/s390/oprofile/backtrace.c')
-rw-r--r--arch/s390/oprofile/backtrace.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/arch/s390/oprofile/backtrace.c b/arch/s390/oprofile/backtrace.c
index fe0bfe3..1884e17 100644
--- a/arch/s390/oprofile/backtrace.c
+++ b/arch/s390/oprofile/backtrace.c
@@ -54,12 +54,13 @@ __show_trace(unsigned int *depth, unsigned long sp,
void s390_backtrace(struct pt_regs * const regs, unsigned int depth)
{
- unsigned long head;
+ unsigned long head, frame_size;
struct stack_frame* head_sf;
if (user_mode(regs))
return;
+ frame_size = STACK_FRAME_OVERHEAD + sizeof(struct pt_regs);
head = regs->gprs[15];
head_sf = (struct stack_frame*)head;
@@ -68,8 +69,9 @@ void s390_backtrace(struct pt_regs * const regs, unsigned int depth)
head = head_sf->back_chain;
- head = __show_trace(&depth, head, S390_lowcore.async_stack - ASYNC_SIZE,
- S390_lowcore.async_stack);
+ head = __show_trace(&depth, head,
+ S390_lowcore.async_stack + frame_size - ASYNC_SIZE,
+ S390_lowcore.async_stack + frame_size);
__show_trace(&depth, head, S390_lowcore.thread_info,
S390_lowcore.thread_info + THREAD_SIZE);