Merge branch 'master' into for-next

Fast-forwarded to current state of Linus' tree as there are patches to be
applied for files that didn't exist on the old branch.

1 files changed, 10 insertions, 0 deletions

diff --git a/tools/perf/util/debug.c b/tools/perf/util/debug.c
index d4536a9e0d8c..155749d74350 100644
--- a/tools/perf/util/debug.c
+++ b/tools/perf/util/debug.c
@@ -57,6 +57,16 @@ void ui__warning(const char *format, ...)
 }
 #endif
 
+void ui__warning_paranoid(void)
+{
+        ui__warning("Permission error - are you root?\n"
+                    "Consider tweaking /proc/sys/kernel/perf_event_paranoid:\n"
+                    " -1 - Not paranoid at all\n"
+                    "  0 - Disallow raw tracepoint access for unpriv\n"
+                    "  1 - Disallow cpu events for unpriv\n"
+                    "  2 - Disallow kernel profiling for unpriv\n");
+}
+
 void trace_event(union perf_event *event)
 {
         unsigned char *raw_event = (void *)event;