tracing/events: Only define remove_subsystem_dir() if CONFIG_MODULES
If we disable modules, we get the following warning in ftrace events file: kernel/trace/trace_events.c:912: attention : ‘remove_subsystem_dir’ defined but not used remove_subystem_dir() is useless if !CONFIG_MODULES, then move it to the appropriate #ifdef section of trace_events.c Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Steven Rostedt <rostedt@goodmis.org>
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@ -908,32 +908,6 @@ event_subsystem_dir(const char *name, struct dentry *d_events)
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return system->entry;
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}
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static void remove_subsystem_dir(const char *name)
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{
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struct event_subsystem *system;
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if (strcmp(name, TRACE_SYSTEM) == 0)
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return;
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list_for_each_entry(system, &event_subsystems, list) {
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if (strcmp(system->name, name) == 0) {
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if (!--system->nr_events) {
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struct event_filter *filter = system->filter;
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debugfs_remove_recursive(system->entry);
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list_del(&system->list);
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if (filter) {
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kfree(filter->filter_string);
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kfree(filter);
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}
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kfree(system->name);
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kfree(system);
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}
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break;
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}
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}
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}
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static int
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event_create_dir(struct ftrace_event_call *call, struct dentry *d_events,
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const struct file_operations *id,
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@ -1018,6 +992,32 @@ struct ftrace_module_file_ops {
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struct file_operations filter;
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};
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static void remove_subsystem_dir(const char *name)
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{
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struct event_subsystem *system;
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if (strcmp(name, TRACE_SYSTEM) == 0)
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return;
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list_for_each_entry(system, &event_subsystems, list) {
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if (strcmp(system->name, name) == 0) {
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if (!--system->nr_events) {
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struct event_filter *filter = system->filter;
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debugfs_remove_recursive(system->entry);
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list_del(&system->list);
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if (filter) {
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kfree(filter->filter_string);
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kfree(filter);
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}
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kfree(system->name);
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kfree(system);
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}
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break;
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}
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}
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}
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static struct ftrace_module_file_ops *
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trace_create_file_ops(struct module *mod)
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{
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