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authorPaolo Bonzini <pbonzini@redhat.com>2023-02-15 12:33:28 -0500
committerPaolo Bonzini <pbonzini@redhat.com>2023-02-15 12:33:28 -0500
commit33436335e93a1788a58443fc99c5ab320ce4b9d9 (patch)
treed92f88768c8dbd00f8b65164f47a8a091768b95a /arch/loongarch/kernel/process.c
parent27b025ebb0f6092d5c0a88de2ab73545bc1c496e (diff)
parentc39cea6f38eefe356d64d0bc1e1f2267e282cdd3 (diff)
Merge tag 'kvm-riscv-6.3-1' of https://github.com/kvm-riscv/linux into HEAD
KVM/riscv changes for 6.3 - Fix wrong usage of PGDIR_SIZE to check page sizes - Fix privilege mode setting in kvm_riscv_vcpu_trap_redirect() - Redirect illegal instruction traps to guest - SBI PMU support for guest
Diffstat (limited to 'arch/loongarch/kernel/process.c')
-rw-r--r--arch/loongarch/kernel/process.c12
1 files changed, 3 insertions, 9 deletions
diff --git a/arch/loongarch/kernel/process.c b/arch/loongarch/kernel/process.c
index c583b1ef1f44..edfd220a3737 100644
--- a/arch/loongarch/kernel/process.c
+++ b/arch/loongarch/kernel/process.c
@@ -191,20 +191,14 @@ out:
unsigned long __get_wchan(struct task_struct *task)
{
- unsigned long pc;
+ unsigned long pc = 0;
struct unwind_state state;
if (!try_get_task_stack(task))
return 0;
- unwind_start(&state, task, NULL);
- state.sp = thread_saved_fp(task);
- get_stack_info(state.sp, state.task, &state.stack_info);
- state.pc = thread_saved_ra(task);
-#ifdef CONFIG_UNWINDER_PROLOGUE
- state.type = UNWINDER_PROLOGUE;
-#endif
- for (; !unwind_done(&state); unwind_next_frame(&state)) {
+ for (unwind_start(&state, task, NULL);
+ !unwind_done(&state); unwind_next_frame(&state)) {
pc = unwind_get_return_address(&state);
if (!pc)
break;