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| author | Steven Rostedt (Red Hat) <rostedt@goodmis.org> | 2015-12-01 12:24:45 -0500 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2015-12-23 14:27:17 -0500 |
| commit | 030f4e1cb86f059185572fd1678a55b5e8ff0d08 (patch) | |
| tree | 7cf4388e686c9f26fda061c0203f67d4dcb00c76 /kernel/trace/ftrace.c | |
| parent | b8ec330a63eb39127f5cfcae5f8524e969ef9f94 (diff) | |
| download | linux-030f4e1cb86f059185572fd1678a55b5e8ff0d08.tar.gz | |
ftrace: Fix output of enabled_functions for showing tramp
When showing all tramps registered to a ftrace record in the file enabled_functions, it exits the loop with ops == NULL. But then it is suppose to show the function on the ops->trampoline and add_trampoline_func() is called with the given ops. But because ops is now NULL (to exit the loop), it always shows the static trampoline instead of the one that is really registered to the record. The call to add_trampoline_func() that shows the trampoline for the given ops needs to be called at every iteration. Fixes: 39daa7b9e895 "ftrace: Show all tramps registered to a record on ftrace_bug()" Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/ftrace.c')
| -rw-r--r-- | kernel/trace/ftrace.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index b8dfe8138aa2..bf7bebcdad82 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -3322,7 +3322,7 @@ static int t_show(struct seq_file *m, void *v) seq_printf(m, "%ps", (void *)rec->ip); if (iter->flags & FTRACE_ITER_ENABLED) { - struct ftrace_ops *ops = NULL; + struct ftrace_ops *ops; seq_printf(m, " (%ld)%s%s", ftrace_rec_count(rec), @@ -3335,13 +3335,14 @@ static int t_show(struct seq_file *m, void *v) seq_printf(m, "\ttramp: %pS (%pS)", (void *)ops->trampoline, (void *)ops->func); + add_trampoline_func(m, ops, rec); ops = ftrace_find_tramp_ops_next(rec, ops); } while (ops); } else seq_puts(m, "\ttramp: ERROR!"); - + } else { + add_trampoline_func(m, NULL, rec); } - add_trampoline_func(m, ops, rec); } seq_putc(m, '\n'); |