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tracing: A minor cleanup for create_system_filter() 

The first two parameters should be reduced to one, as @tr is simply
@dir->tr.

Link: https://lkml.kernel.org/r/20210324205642.65e03248@oasis.local.home
Link: https://lkml.kernel.org/r/20210325163752.128407-1-hqjagain@gmail.com

Suggested-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Qiujun Huang <hqjagain@gmail.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
This commit is contained in:
Qiujun Huang 2021-03-25 16:37:52 +00:00 committed by Steven Rostedt (VMware)
parent 4613bdcc12
commit 30c3d39f7f
1 changed files with 3 additions and 4 deletions
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7
kernel/trace/trace_events_filter.c
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@ -1750,7 +1750,6 @@ int create_event_filter(struct trace_array *tr,
* and always remembers @filter_str.
*/
static int create_system_filter(struct trace_subsystem_dir *dir,
struct trace_array *tr,
char *filter_str, struct event_filter **filterp)
{
struct filter_parse_error *pe = NULL;
@ -1758,13 +1757,13 @@ static int create_system_filter(struct trace_subsystem_dir *dir,
err = create_filter_start(filter_str, true, &pe, filterp);
if (!err) {
err = process_system_preds(dir, tr, pe, filter_str);
err = process_system_preds(dir, dir->tr, pe, filter_str);
if (!err) {
/* System filters just show a default message */
kfree((*filterp)->filter_string);
(*filterp)->filter_string = NULL;
} else {
append_filter_err(tr, pe, *filterp);
append_filter_err(dir->tr, pe, *filterp);
}
}
create_filter_finish(pe);
@ -1852,7 +1851,7 @@ int apply_subsystem_event_filter(struct trace_subsystem_dir *dir,
goto out_unlock;
}
err = create_system_filter(dir, tr, filter_string, &filter);
err = create_system_filter(dir, filter_string, &filter);
if (filter) {
/*
* No event actually uses the system filter