perf tools: Use __maybe_used for unused variables

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / tools / perf / util / probe-event.c

diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index e8c72de0f70cd78215b1034d1d5bdda3049574b1..4ce04c2281d3c143a0a6e852e00fee9cfc30d4bf 100644 (file)
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -41,7 +41,7 @@
 #include "symbol.h"
 #include "thread.h"
 #include "debugfs.h"
-#include "trace-event.h"       /* For __unused */
+#include "trace-event.h"       /* For __maybe_unused */
 #include "probe-event.h"
 #include "probe-finder.h"
 #include "session.h"
@@ -647,8 +647,8 @@ static int kprobe_convert_to_perf_probe(struct probe_trace_point *tp,
 }
 
 static int try_to_find_probe_trace_events(struct perf_probe_event *pev,
-                               struct probe_trace_event **tevs __unused,
-                               int max_tevs __unused, const char *target)
+                               struct probe_trace_event **tevs __maybe_unused,
+                               int max_tevs __maybe_unused, const char *target)
 {
        if (perf_probe_event_need_dwarf(pev)) {
                pr_warning("Debuginfo-analysis is not supported.\n");
@@ -661,17 +661,18 @@ static int try_to_find_probe_trace_events(struct perf_probe_event *pev,
        return 0;
 }
 
-int show_line_range(struct line_range *lr __unused, const char *module __unused)
+int show_line_range(struct line_range *lr __maybe_unused,
+                   const char *module __maybe_unused)
 {
        pr_warning("Debuginfo-analysis is not supported.\n");
        return -ENOSYS;
 }
 
-int show_available_vars(struct perf_probe_event *pevs __unused,
-                       int npevs __unused, int max_vls __unused,
-                       const char *module __unused,
-                       struct strfilter *filter __unused,
-                       bool externs __unused)
+int show_available_vars(struct perf_probe_event *pevs __maybe_unused,
+                       int npevs __maybe_unused, int max_vls __maybe_unused,
+                       const char *module __maybe_unused,
+                       struct strfilter *filter __maybe_unused,
+                       bool externs __maybe_unused)
 {
        pr_warning("Debuginfo-analysis is not supported.\n");
        return -ENOSYS;
@@ -2183,7 +2184,7 @@ static struct strfilter *available_func_filter;
  * If a symbol corresponds to a function with global binding and
  * matches filter return 0. For all others return 1.
  */
-static int filter_available_functions(struct map *map __unused,
+static int filter_available_functions(struct map *map __maybe_unused,
                                      struct symbol *sym)
 {
        if (sym->binding == STB_GLOBAL &&