[tip:perf/core] perf tools: Remove mountpoint arg from perf_debugfs_mount

[tip-bot for Jiri Olsa <tipbot@xxxxxxxxx>]

Commit-ID:  f6a09af7de3b39b1e4fcff7374871f834498b7f0
Gitweb:     http://git.kernel.org/tip/f6a09af7de3b39b1e4fcff7374871f834498b7f0
Author:     Jiri Olsa <jolsa@xxxxxxxxxx>
AuthorDate: Wed, 2 Sep 2015 09:56:32 +0200
Committer:  Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Wed, 2 Sep 2015 16:30:47 -0300

perf tools: Remove mountpoint arg from perf_debugfs_mount

It's not used by any caller. We either detect the mountpoint or use
hardcoded one.

Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Raphael Beamonte <raphael.beamonte@xxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Matt Fleming <matt@xxxxxxxxxxxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Cc: Steven Rostedt <rostedt@xxxxxxxxxxx>
Link: http://lkml.kernel.org/r/1441180605-24737-3-git-send-email-jolsa@xxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 tools/perf/perf.c      |  2 +-
 tools/perf/util/util.c | 14 +++++++-------
 tools/perf/util/util.h |  2 +-
 3 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/tools/perf/perf.c b/tools/perf/perf.c
index 07dbff5..f500a4b 100644
--- a/tools/perf/perf.c
+++ b/tools/perf/perf.c
@@ -518,7 +518,7 @@ int main(int argc, const char **argv)
 	if (!cmd)
 		cmd = "perf-help";
 	/* get debugfs mount point from /proc/mounts */
-	perf_debugfs_mount(NULL);
+	perf_debugfs_mount();
 	/*
 	 * "perf-xxxx" is the same as "perf xxxx", but we obviously:
 	 *
diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c
index 7acafb3..74f71f8 100644
--- a/tools/perf/util/util.c
+++ b/tools/perf/util/util.c
@@ -398,11 +398,11 @@ static void set_tracing_events_path(const char *tracing, const char *mountpoint)
 		 mountpoint, tracing, "events");
 }
 
-static const char *__perf_tracefs_mount(const char *mountpoint)
+static const char *__perf_tracefs_mount(void)
 {
 	const char *mnt;
 
-	mnt = tracefs_mount(mountpoint);
+	mnt = tracefs_mount(NULL);
 	if (!mnt)
 		return NULL;
 
@@ -411,11 +411,11 @@ static const char *__perf_tracefs_mount(const char *mountpoint)
 	return mnt;
 }
 
-static const char *__perf_debugfs_mount(const char *mountpoint)
+static const char *__perf_debugfs_mount(void)
 {
 	const char *mnt;
 
-	mnt = debugfs_mount(mountpoint);
+	mnt = debugfs_mount(NULL);
 	if (!mnt)
 		return NULL;
 
@@ -424,15 +424,15 @@ static const char *__perf_debugfs_mount(const char *mountpoint)
 	return mnt;
 }
 
-const char *perf_debugfs_mount(const char *mountpoint)
+const char *perf_debugfs_mount(void)
 {
 	const char *mnt;
 
-	mnt = __perf_tracefs_mount(mountpoint);
+	mnt = __perf_tracefs_mount();
 	if (mnt)
 		return mnt;
 
-	mnt = __perf_debugfs_mount(mountpoint);
+	mnt = __perf_debugfs_mount();
 
 	return mnt;
 }
diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h
index 09c1a8b..48ec232 100644
--- a/tools/perf/util/util.h
+++ b/tools/perf/util/util.h
@@ -86,7 +86,7 @@ extern char buildid_dir[];
 extern char tracing_path[];
 extern char tracing_events_path[];
 extern void perf_debugfs_set_path(const char *mountpoint);
-const char *perf_debugfs_mount(const char *mountpoint);
+const char *perf_debugfs_mount(void);
 char *get_tracing_file(const char *name);
 void put_tracing_file(char *file);
 
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