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authorJiri Kosina <jkosina@suse.cz>2021-06-30 09:02:28 +0200
committerJiri Kosina <jkosina@suse.cz>2021-06-30 09:02:28 +0200
commit5a94296bc02ac616336da7b5332b86d2ca8827f0 (patch)
treed13c4e7db2b4b01adb87fbf2ea5bafd2dc920b2f /arch/riscv/kernel/stacktrace.c
parent3b770932eefb7c0c6319d332023efee87eb12913 (diff)
parent24a31ea94922d391a96a9dd0a9a830de65423817 (diff)
Merge branch 'for-5.14/amd-sfh' into for-linus
- support for Renoir and Cezanne SoCs - support for Ambient Light Sensor - support for Human Presence Detection sensor all from Basavaraj Natikar
Diffstat (limited to 'arch/riscv/kernel/stacktrace.c')
-rw-r--r--arch/riscv/kernel/stacktrace.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/arch/riscv/kernel/stacktrace.c b/arch/riscv/kernel/stacktrace.c
index 2b3e0cb90d789..bde85fc53357f 100644
--- a/arch/riscv/kernel/stacktrace.c
+++ b/arch/riscv/kernel/stacktrace.c
@@ -27,10 +27,10 @@ void notrace walk_stackframe(struct task_struct *task, struct pt_regs *regs,
fp = frame_pointer(regs);
sp = user_stack_pointer(regs);
pc = instruction_pointer(regs);
- } else if (task == NULL || task == current) {
- fp = (unsigned long)__builtin_frame_address(0);
- sp = sp_in_global;
- pc = (unsigned long)walk_stackframe;
+ } else if (task == current) {
+ fp = (unsigned long)__builtin_frame_address(1);
+ sp = (unsigned long)__builtin_frame_address(0);
+ pc = (unsigned long)__builtin_return_address(0);
} else {
/* task blocked in __switch_to */
fp = task->thread.s[0];
@@ -106,15 +106,15 @@ static bool print_trace_address(void *arg, unsigned long pc)
return true;
}
-void dump_backtrace(struct pt_regs *regs, struct task_struct *task,
+noinline void dump_backtrace(struct pt_regs *regs, struct task_struct *task,
const char *loglvl)
{
- pr_cont("%sCall Trace:\n", loglvl);
walk_stackframe(task, regs, print_trace_address, (void *)loglvl);
}
void show_stack(struct task_struct *task, unsigned long *sp, const char *loglvl)
{
+ pr_cont("%sCall Trace:\n", loglvl);
dump_backtrace(NULL, task, loglvl);
}
@@ -139,7 +139,7 @@ unsigned long get_wchan(struct task_struct *task)
#ifdef CONFIG_STACKTRACE
-void arch_stack_walk(stack_trace_consume_fn consume_entry, void *cookie,
+noinline void arch_stack_walk(stack_trace_consume_fn consume_entry, void *cookie,
struct task_struct *task, struct pt_regs *regs)
{
walk_stackframe(task, regs, consume_entry, cookie);