Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

[linux.git] / arch / s390 / oprofile / backtrace.c

diff --git a/arch/s390/oprofile/backtrace.c b/arch/s390/oprofile/backtrace.c
index 8a6811b2cdb9523a24cd32341dee0fcef317f661..1884e17595294bbfafdcaf8e183fd80e40d8ea48 100644 (file)
--- a/arch/s390/oprofile/backtrace.c
+++ b/arch/s390/oprofile/backtrace.c
@@ -16,24 +16,23 @@ __show_trace(unsigned int *depth, unsigned long sp,
        struct pt_regs *regs;
 
        while (*depth) {
-               sp = sp & PSW_ADDR_INSN;
                if (sp < low || sp > high - sizeof(*sf))
                        return sp;
                sf = (struct stack_frame *) sp;
                (*depth)--;
-               oprofile_add_trace(sf->gprs[8] & PSW_ADDR_INSN);
+               oprofile_add_trace(sf->gprs[8]);
 
                /* Follow the backchain.  */
                while (*depth) {
                        low = sp;
-                       sp = sf->back_chain & PSW_ADDR_INSN;
+                       sp = sf->back_chain;
                        if (!sp)
                                break;
                        if (sp <= low || sp > high - sizeof(*sf))
                                return sp;
                        sf = (struct stack_frame *) sp;
                        (*depth)--;
-                       oprofile_add_trace(sf->gprs[8] & PSW_ADDR_INSN);
+                       oprofile_add_trace(sf->gprs[8]);
 
                }
 
@@ -46,7 +45,7 @@ __show_trace(unsigned int *depth, unsigned long sp,
                        return sp;
                regs = (struct pt_regs *) sp;
                (*depth)--;
-               oprofile_add_trace(sf->gprs[8] & PSW_ADDR_INSN);
+               oprofile_add_trace(sf->gprs[8]);
                low = sp;
                sp = regs->gprs[15];
        }
@@ -55,12 +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;
 
@@ -69,8 +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);