[PATCH 2/2] trace-cmd: Document "trace-cmd report --cpu ..." option

["Tzvetomir Stoyanov (VMware)" <tz.stoyanov@gmail.com>]

Added description of "trace-cmd report --cpu ..." option in
"trace-cmd report --help" output and in "trace-cmd report" man page.

Signed-off-by: Tzvetomir Stoyanov (VMware) <tz.stoyanov@gmail.com>
---
 Documentation/trace-cmd-report.1.txt | 9 +++++++++
 tracecmd/trace-usage.c               | 2 ++
 2 files changed, 11 insertions(+)

diff --git a/Documentation/trace-cmd-report.1.txt b/Documentation/trace-cmd-report.1.txt
index 66e96da7..864eb2d7 100644
--- a/Documentation/trace-cmd-report.1.txt
+++ b/Documentation/trace-cmd-report.1.txt
@@ -242,6 +242,15 @@ OPTIONS
 
      Example:  -O fgraph:tailprint
 
+*--cpu* <cpu list>::
+    List of CPUs, separated by "," or ":", used for filtering the events.
+    A range of CPUs can be specified using "cpuX-cpuY" notation, where all CPUs
+    in the range between cpuX and cpuY will be included in the list. The order
+    of CPUs in the list must be from lower to greater.
+
+    Example:  "--cpu 0,3" - show events from CPUs 0 and 3
+              "--cpu 2-4" - show events from CPUs 2, 3 and 4
+
 *--stat*::
     If the trace.dat file recorded the final stats (outputed at the end of record)
     the *--stat* option can be used to retrieve them.
diff --git a/tracecmd/trace-usage.c b/tracecmd/trace-usage.c
index 85c63512..3f0b2d07 100644
--- a/tracecmd/trace-usage.c
+++ b/tracecmd/trace-usage.c
@@ -209,6 +209,8 @@ static struct usage_help usage_help[] = {
 		"          -w show wakeup latencies\n"
 		"          -l show latency format (default with latency tracers)\n"
 		"          -O plugin option -O [plugin:]var[=val]\n"
+		"          --cpu <cpu1,cpu2,...> - filter events according to the given cpu list.\n"
+		"                                  A range of CPUs can be specified using 'cpuX-cpuY' notation.\n"
 		"          --check-events return whether all event formats can be parsed\n"
 		"          --stat - show the buffer stats that were reported at the end of the record.\n"
 		"          --uname - show uname of the record, if it was saved\n"
-- 
2.26.2