x86/stacktrace: Fix reliable check for empty user task stacks

[mirror_ubuntu-jammy-kernel.git] / arch / x86 / kernel / stacktrace.c

diff --git a/arch/x86/kernel/stacktrace.c b/arch/x86/kernel/stacktrace.c
index 6ad43fc44556e299442a0180b90cd82d83b166d4..2fd698e28e4d5d23629fbcdbbd2ce40b89c9baef 100644 (file)
--- a/arch/x86/kernel/stacktrace.c
+++ b/arch/x86/kernel/stacktrace.c
@@ -58,7 +58,6 @@ int arch_stack_walk_reliable(stack_trace_consume_fn consume_entry,
                         * or a page fault), which can make frame pointers
                         * unreliable.
                         */
-
                        if (IS_ENABLED(CONFIG_FRAME_POINTER))
                                return -EINVAL;
                }
@@ -81,10 +80,6 @@ int arch_stack_walk_reliable(stack_trace_consume_fn consume_entry,
        if (unwind_error(&state))
                return -EINVAL;
 
-       /* Success path for non-user tasks, i.e. kthreads and idle tasks */
-       if (!(task->flags & (PF_KTHREAD | PF_IDLE)))
-               return -EINVAL;
-
        return 0;
 }