From 476705419518a2f383b6695782ba1f285a2959b9 Mon Sep 17 00:00:00 2001 From: Tom Zanussi Date: Fri, 4 Feb 2022 16:12:05 -0600 Subject: [PATCH] tracing: Remove redundant trigger_ops params Since event_trigger_data contains the .ops trigger_ops field, there's no reason to pass the trigger_ops separately. Remove it as a param from functions whenever event_trigger_data is passed. Link: https://lkml.kernel.org/r/9856c9bc81bde57077f5b8d6f8faa47156c6354a.1644010575.git.zanussi@kernel.org Signed-off-by: Tom Zanussi Signed-off-by: Steven Rostedt (Google) --- kernel/trace/trace.h | 14 +++------ kernel/trace/trace_eprobe.c | 7 ++--- kernel/trace/trace_events_hist.c | 29 ++++++++---------- kernel/trace/trace_events_trigger.c | 46 +++++++++++------------------ 4 files changed, 36 insertions(+), 60 deletions(-) diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h index 2bc8036b0659..f3e4cd1bb60e 100644 --- a/kernel/trace/trace.h +++ b/kernel/trace/trace.h @@ -1573,10 +1573,8 @@ struct enable_trigger_data { }; extern int event_enable_trigger_print(struct seq_file *m, - struct event_trigger_ops *ops, - struct event_trigger_data *data); -extern void event_enable_trigger_free(struct event_trigger_ops *ops, struct event_trigger_data *data); +extern void event_enable_trigger_free(struct event_trigger_data *data); extern int event_enable_trigger_parse(struct event_command *cmd_ops, struct trace_event_file *file, char *glob, char *cmd, char *param); @@ -1587,8 +1585,7 @@ extern void event_enable_unregister_trigger(char *glob, struct event_trigger_data *test, struct trace_event_file *file); extern void trigger_data_free(struct event_trigger_data *data); -extern int event_trigger_init(struct event_trigger_ops *ops, - struct event_trigger_data *data); +extern int event_trigger_init(struct event_trigger_data *data); extern int trace_event_trigger_enable_disable(struct trace_event_file *file, int trigger_enable); extern void update_cond_flag(struct trace_event_file *file); @@ -1687,12 +1684,9 @@ struct event_trigger_ops { struct trace_buffer *buffer, void *rec, struct ring_buffer_event *rbe); - int (*init)(struct event_trigger_ops *ops, - struct event_trigger_data *data); - void (*free)(struct event_trigger_ops *ops, - struct event_trigger_data *data); + int (*init)(struct event_trigger_data *data); + void (*free)(struct event_trigger_data *data); int (*print)(struct seq_file *m, - struct event_trigger_ops *ops, struct event_trigger_data *data); }; diff --git a/kernel/trace/trace_eprobe.c b/kernel/trace/trace_eprobe.c index 541aa13581b9..9b3dfc9da067 100644 --- a/kernel/trace/trace_eprobe.c +++ b/kernel/trace/trace_eprobe.c @@ -511,20 +511,17 @@ __eprobe_trace_func(struct eprobe_data *edata, void *rec) * functions are just stubs to fulfill what is needed to use the trigger * infrastructure. */ -static int eprobe_trigger_init(struct event_trigger_ops *ops, - struct event_trigger_data *data) +static int eprobe_trigger_init(struct event_trigger_data *data) { return 0; } -static void eprobe_trigger_free(struct event_trigger_ops *ops, - struct event_trigger_data *data) +static void eprobe_trigger_free(struct event_trigger_data *data) { } static int eprobe_trigger_print(struct seq_file *m, - struct event_trigger_ops *ops, struct event_trigger_data *data) { /* Do not print eprobe event triggers */ diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c index b18d00905eae..40a7e5582dfb 100644 --- a/kernel/trace/trace_events_hist.c +++ b/kernel/trace/trace_events_hist.c @@ -5252,7 +5252,7 @@ static void hist_trigger_show(struct seq_file *m, seq_puts(m, "\n\n"); seq_puts(m, "# event histogram\n#\n# trigger info: "); - data->ops->print(m, data->ops, data); + data->ops->print(m, data); seq_puts(m, "#\n\n"); hist_data = data->private_data; @@ -5484,7 +5484,7 @@ static void hist_trigger_debug_show(struct seq_file *m, seq_puts(m, "\n\n"); seq_puts(m, "# event histogram\n#\n# trigger info: "); - data->ops->print(m, data->ops, data); + data->ops->print(m, data); seq_puts(m, "#\n\n"); hist_data = data->private_data; @@ -5621,7 +5621,6 @@ static void hist_field_print(struct seq_file *m, struct hist_field *hist_field) } static int event_hist_trigger_print(struct seq_file *m, - struct event_trigger_ops *ops, struct event_trigger_data *data) { struct hist_trigger_data *hist_data = data->private_data; @@ -5729,8 +5728,7 @@ static int event_hist_trigger_print(struct seq_file *m, return 0; } -static int event_hist_trigger_init(struct event_trigger_ops *ops, - struct event_trigger_data *data) +static int event_hist_trigger_init(struct event_trigger_data *data) { struct hist_trigger_data *hist_data = data->private_data; @@ -5758,8 +5756,7 @@ static void unregister_field_var_hists(struct hist_trigger_data *hist_data) } } -static void event_hist_trigger_free(struct event_trigger_ops *ops, - struct event_trigger_data *data) +static void event_hist_trigger_free(struct event_trigger_data *data) { struct hist_trigger_data *hist_data = data->private_data; @@ -5788,25 +5785,23 @@ static struct event_trigger_ops event_hist_trigger_ops = { .free = event_hist_trigger_free, }; -static int event_hist_trigger_named_init(struct event_trigger_ops *ops, - struct event_trigger_data *data) +static int event_hist_trigger_named_init(struct event_trigger_data *data) { data->ref++; save_named_trigger(data->named_data->name, data); - event_hist_trigger_init(ops, data->named_data); + event_hist_trigger_init(data->named_data); return 0; } -static void event_hist_trigger_named_free(struct event_trigger_ops *ops, - struct event_trigger_data *data) +static void event_hist_trigger_named_free(struct event_trigger_data *data) { if (WARN_ON_ONCE(data->ref <= 0)) return; - event_hist_trigger_free(ops, data->named_data); + event_hist_trigger_free(data->named_data); data->ref--; if (!data->ref) { @@ -5993,7 +5988,7 @@ static int hist_register_trigger(char *glob, } if (data->ops->init) { - ret = data->ops->init(data->ops, data); + ret = data->ops->init(data); if (ret < 0) goto out; } @@ -6111,7 +6106,7 @@ static void hist_unregister_trigger(char *glob, } if (unregistered && test->ops->free) - test->ops->free(test->ops, test); + test->ops->free(test); if (hist_data->enable_timestamps) { if (!hist_data->remove || unregistered) @@ -6164,7 +6159,7 @@ static void hist_unreg_all(struct trace_event_file *file) if (hist_data->enable_timestamps) tracing_set_filter_buffering(file->tr, false); if (test->ops->free) - test->ops->free(test->ops, test); + test->ops->free(test); } } } @@ -6458,7 +6453,7 @@ static void hist_enable_unreg_all(struct trace_event_file *file) update_cond_flag(file); trace_event_trigger_enable_disable(file, 0); if (test->ops->free) - test->ops->free(test->ops, test); + test->ops->free(test); } } } diff --git a/kernel/trace/trace_events_trigger.c b/kernel/trace/trace_events_trigger.c index ea13679054a8..32202175875d 100644 --- a/kernel/trace/trace_events_trigger.c +++ b/kernel/trace/trace_events_trigger.c @@ -188,7 +188,7 @@ static int trigger_show(struct seq_file *m, void *v) } data = list_entry(v, struct event_trigger_data, list); - data->ops->print(m, data->ops, data); + data->ops->print(m, data); return 0; } @@ -432,7 +432,6 @@ event_trigger_print(const char *name, struct seq_file *m, /** * event_trigger_init - Generic event_trigger_ops @init implementation - * @ops: The trigger ops associated with the trigger * @data: Trigger-specific data * * Common implementation of event trigger initialization. @@ -442,8 +441,7 @@ event_trigger_print(const char *name, struct seq_file *m, * * Return: 0 on success, errno otherwise */ -int event_trigger_init(struct event_trigger_ops *ops, - struct event_trigger_data *data) +int event_trigger_init(struct event_trigger_data *data) { data->ref++; return 0; @@ -451,7 +449,6 @@ int event_trigger_init(struct event_trigger_ops *ops, /** * event_trigger_free - Generic event_trigger_ops @free implementation - * @ops: The trigger ops associated with the trigger * @data: Trigger-specific data * * Common implementation of event trigger de-initialization. @@ -460,8 +457,7 @@ int event_trigger_init(struct event_trigger_ops *ops, * implementations. */ static void -event_trigger_free(struct event_trigger_ops *ops, - struct event_trigger_data *data) +event_trigger_free(struct event_trigger_data *data) { if (WARN_ON_ONCE(data->ref <= 0)) return; @@ -515,7 +511,7 @@ clear_event_triggers(struct trace_array *tr) trace_event_trigger_enable_disable(file, 0); list_del_rcu(&data->list); if (data->ops->free) - data->ops->free(data->ops, data); + data->ops->free(data); } } } @@ -581,7 +577,7 @@ static int register_trigger(char *glob, } if (data->ops->init) { - ret = data->ops->init(data->ops, data); + ret = data->ops->init(data); if (ret < 0) goto out; } @@ -629,7 +625,7 @@ static void unregister_trigger(char *glob, } if (unregistered && data->ops->free) - data->ops->free(data->ops, data); + data->ops->free(data); } /* @@ -1049,14 +1045,14 @@ event_trigger_parse(struct event_command *cmd_ops, out_reg: /* Up the trigger_data count to make sure reg doesn't free it on failure */ - event_trigger_init(trigger_ops, trigger_data); + event_trigger_init(trigger_data); ret = event_trigger_register(cmd_ops, file, glob, trigger_data); if (ret) goto out_free; /* Down the counter of trigger_data or free it if not used anymore */ - event_trigger_free(trigger_ops, trigger_data); + event_trigger_free(trigger_data); out: return ret; @@ -1382,16 +1378,14 @@ traceoff_count_trigger(struct event_trigger_data *data, } static int -traceon_trigger_print(struct seq_file *m, struct event_trigger_ops *ops, - struct event_trigger_data *data) +traceon_trigger_print(struct seq_file *m, struct event_trigger_data *data) { return event_trigger_print("traceon", m, (void *)data->count, data->filter_str); } static int -traceoff_trigger_print(struct seq_file *m, struct event_trigger_ops *ops, - struct event_trigger_data *data) +traceoff_trigger_print(struct seq_file *m, struct event_trigger_data *data) { return event_trigger_print("traceoff", m, (void *)data->count, data->filter_str); @@ -1502,8 +1496,7 @@ register_snapshot_trigger(char *glob, } static int -snapshot_trigger_print(struct seq_file *m, struct event_trigger_ops *ops, - struct event_trigger_data *data) +snapshot_trigger_print(struct seq_file *m, struct event_trigger_data *data) { return event_trigger_print("snapshot", m, (void *)data->count, data->filter_str); @@ -1598,8 +1591,7 @@ stacktrace_count_trigger(struct event_trigger_data *data, } static int -stacktrace_trigger_print(struct seq_file *m, struct event_trigger_ops *ops, - struct event_trigger_data *data) +stacktrace_trigger_print(struct seq_file *m, struct event_trigger_data *data) { return event_trigger_print("stacktrace", m, (void *)data->count, data->filter_str); @@ -1689,7 +1681,6 @@ event_enable_count_trigger(struct event_trigger_data *data, } int event_enable_trigger_print(struct seq_file *m, - struct event_trigger_ops *ops, struct event_trigger_data *data) { struct enable_trigger_data *enable_data = data->private_data; @@ -1714,8 +1705,7 @@ int event_enable_trigger_print(struct seq_file *m, return 0; } -void event_enable_trigger_free(struct event_trigger_ops *ops, - struct event_trigger_data *data) +void event_enable_trigger_free(struct event_trigger_data *data) { struct enable_trigger_data *enable_data = data->private_data; @@ -1843,7 +1833,7 @@ int event_enable_trigger_parse(struct event_command *cmd_ops, } /* Up the trigger_data count to make sure nothing frees it on failure */ - event_trigger_init(trigger_ops, trigger_data); + event_trigger_init(trigger_data); if (trigger) { number = strsep(&trigger, ":"); @@ -1887,7 +1877,7 @@ int event_enable_trigger_parse(struct event_command *cmd_ops, if (ret) goto out_disable; - event_trigger_free(trigger_ops, trigger_data); + event_trigger_free(trigger_data); out: return ret; @@ -1898,7 +1888,7 @@ int event_enable_trigger_parse(struct event_command *cmd_ops, out_free: if (cmd_ops->set_filter) cmd_ops->set_filter(NULL, trigger_data, NULL); - event_trigger_free(trigger_ops, trigger_data); + event_trigger_free(trigger_data); kfree(enable_data); goto out; } @@ -1926,7 +1916,7 @@ int event_enable_register_trigger(char *glob, } if (data->ops->init) { - ret = data->ops->init(data->ops, data); + ret = data->ops->init(data); if (ret < 0) goto out; } @@ -1969,7 +1959,7 @@ void event_enable_unregister_trigger(char *glob, } if (unregistered && data->ops->free) - data->ops->free(data->ops, data); + data->ops->free(data); } static struct event_trigger_ops *