perf tools: Add const specifier to perf_pmu__find name parameter

The name parameter is constant, declare it so.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1372944040-32690-7-git-send-email-adrian.hunter@intel.comSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/util/pmu.c

@@ -73,7 +73,7 @@ int perf_pmu__format_parse(char *dir, struct list_head *head)
  * located at:
  * /sys/bus/event_source/devices/<dev>/format as sysfs group attributes.
  */
-static int pmu_format(char *name, struct list_head *format)
+static int pmu_format(const char *name, struct list_head *format)
 {
 	struct stat st;
 	char path[PATH_MAX];
@@ -162,7 +162,7 @@ static int pmu_aliases_parse(char *dir, struct list_head *head)
  * Reading the pmu event aliases definition, which should be located at:
  * /sys/bus/event_source/devices/<dev>/events as sysfs group attributes.
  */
-static int pmu_aliases(char *name, struct list_head *head)
+static int pmu_aliases(const char *name, struct list_head *head)
 {
 	struct stat st;
 	char path[PATH_MAX];
@@ -208,7 +208,7 @@ static int pmu_alias_terms(struct perf_pmu_alias *alias,
  * located at:
  * /sys/bus/event_source/devices/<dev>/type as sysfs attribute.
  */
-static int pmu_type(char *name, __u32 *type)
+static int pmu_type(const char *name, __u32 *type)
 {
 	struct stat st;
 	char path[PATH_MAX];
@@ -266,7 +266,7 @@ static void pmu_read_sysfs(void)
 	closedir(dir);
 }
 
-static struct cpu_map *pmu_cpumask(char *name)
+static struct cpu_map *pmu_cpumask(const char *name)
 {
 	struct stat st;
 	char path[PATH_MAX];
@@ -293,7 +293,7 @@ static struct cpu_map *pmu_cpumask(char *name)
 	return cpus;
 }
 
-static struct perf_pmu *pmu_lookup(char *name)
+static struct perf_pmu *pmu_lookup(const char *name)
 {
 	struct perf_pmu *pmu;
 	LIST_HEAD(format);
@@ -330,7 +330,7 @@ static struct perf_pmu *pmu_lookup(char *name)
 	return pmu;
 }
 
-static struct perf_pmu *pmu_find(char *name)
+static struct perf_pmu *pmu_find(const char *name)
 {
 	struct perf_pmu *pmu;
 
@@ -356,7 +356,7 @@ struct perf_pmu *perf_pmu__scan(struct perf_pmu *pmu)
 	return NULL;
 }
 
-struct perf_pmu *perf_pmu__find(char *name)
+struct perf_pmu *perf_pmu__find(const char *name)
 {
 	struct perf_pmu *pmu;
 

tools/perf/util/pmu.h

@@ -21,7 +21,7 @@ struct perf_pmu {
 	struct list_head list;
 };
 
-struct perf_pmu *perf_pmu__find(char *name);
+struct perf_pmu *perf_pmu__find(const char *name);
 int perf_pmu__config(struct perf_pmu *pmu, struct perf_event_attr *attr,
 		     struct list_head *head_terms);
 int perf_pmu__config_terms(struct list_head *formats,