perf: Remove unused del_perf_probe_events()

del_perf_probe_events() last use was removed by commit 3d6dfae
("perf parse-events: Remove BPF event support")

Remove it.

It was the last user of probe_file__del_events(), so remove it as well.

Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20241022002940.302946-1-linux@treblig.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

Author: Dr. David Alan Gilbert

tools/perf/util/probe-event.c

@@ -3754,41 +3754,6 @@ void cleanup_perf_probe_events(struct perf_probe_event *pevs, int npevs)
 	}
 }
 
-int del_perf_probe_events(struct strfilter *filter)
-{
-	int ret, ret2, ufd = -1, kfd = -1;
-	char *str = strfilter__string(filter);
-
-	if (!str)
-		return -EINVAL;
-
-	/* Get current event names */
-	ret = probe_file__open_both(&kfd, &ufd, PF_FL_RW);
-	if (ret < 0)
-		goto out;
-
-	ret = probe_file__del_events(kfd, filter);
-	if (ret < 0 && ret != -ENOENT)
-		goto error;
-
-	ret2 = probe_file__del_events(ufd, filter);
-	if (ret2 < 0 && ret2 != -ENOENT) {
-		ret = ret2;
-		goto error;
-	}
-	ret = 0;
-
-error:
-	if (kfd >= 0)
-		close(kfd);
-	if (ufd >= 0)
-		close(ufd);
-out:
-	free(str);
-
-	return ret;
-}
-
 int show_available_funcs(const char *target, struct nsinfo *nsi,
 			 struct strfilter *_filter, bool user)
 {

tools/perf/util/probe-event.h

@@ -167,8 +167,6 @@ void cleanup_perf_probe_events(struct perf_probe_event *pevs, int npevs);
 
 struct strfilter;
 
-int del_perf_probe_events(struct strfilter *filter);
-
 int show_perf_probe_event(const char *group, const char *event,
 			  struct perf_probe_event *pev,
 			  const char *module, bool use_stdout);

tools/perf/util/probe-file.c

@@ -366,25 +366,6 @@ int probe_file__del_strlist(int fd, struct strlist *namelist)
 	return ret;
 }
 
-int probe_file__del_events(int fd, struct strfilter *filter)
-{
-	struct strlist *namelist;
-	int ret;
-
-	namelist = strlist__new(NULL, NULL);
-	if (!namelist)
-		return -ENOMEM;
-
-	ret = probe_file__get_events(fd, filter, namelist);
-	if (ret < 0)
-		goto out;
-
-	ret = probe_file__del_strlist(fd, namelist);
-out:
-	strlist__delete(namelist);
-	return ret;
-}
-
 /* Caller must ensure to remove this entry from list */
 static void probe_cache_entry__delete(struct probe_cache_entry *entry)
 {

tools/perf/util/probe-file.h

@@ -44,7 +44,6 @@ struct strlist *probe_file__get_namelist(int fd);
 struct strlist *probe_file__get_rawlist(int fd);
 int probe_file__add_event(int fd, struct probe_trace_event *tev);
 
-int probe_file__del_events(int fd, struct strfilter *filter);
 int probe_file__get_events(int fd, struct strfilter *filter,
 				  struct strlist *plist);
 int probe_file__del_strlist(int fd, struct strlist *namelist);