Merge tag 'trace-v5.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing fix from Steven Rostedt:
"Eiichi Tsukata found a small bug from the fixup of the stack code
Removing ULONG_MAX as the marker for the user stack trace end, made
the tracing code not know where the end is. The end is now marked with
a zero (NULL) pointer. Eiichi fixed this in the tracing code"
* tag 'trace-v5.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracing: Fix user stack trace "??" output
diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c
index ba751f9..cab4a53 100644
--- a/kernel/trace/trace_output.c
+++ b/kernel/trace/trace_output.c
@@ -1109,17 +1109,10 @@
for (i = 0; i < FTRACE_STACK_ENTRIES; i++) {
unsigned long ip = field->caller[i];
- if (ip == ULONG_MAX || trace_seq_has_overflowed(s))
+ if (!ip || trace_seq_has_overflowed(s))
break;
trace_seq_puts(s, " => ");
-
- if (!ip) {
- trace_seq_puts(s, "??");
- trace_seq_putc(s, '\n');
- continue;
- }
-
seq_print_user_ip(s, mm, ip, flags);
trace_seq_putc(s, '\n');
}
