[tip:perf/urgent] perf ui/tui: Print helpline message as is

From: tip-bot for Namhyung Kim
Date: Wed Jan 13 2016 - 04:43:33 EST


Commit-ID: 090cff3eae8f02395009972d01b5dfdb95bcc327
Gitweb: http://git.kernel.org/tip/090cff3eae8f02395009972d01b5dfdb95bcc327
Author: Namhyung Kim <namhyung@xxxxxxxxxx>
AuthorDate: Mon, 11 Jan 2016 19:53:14 +0900
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Tue, 12 Jan 2016 12:42:08 -0300

perf ui/tui: Print helpline message as is

When a tip message contains a percent sign, it was treated printf format
specifier so broken string was printed like below.

Tip: Limit to show entries above 577nly: perf report --percent-limit 5
^^^

As ui_browser__show receives format string, pass additional "%s" so that
the help (tip) message can be printed as is.

Tip: Limit to show entries above 5% only: perf report --percent-limit 5

Signed-off-by: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Andi Kleen <andi@xxxxxxxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Wang Nan <wangnan0@xxxxxxxxxx>
Link: http://lkml.kernel.org/r/1452509594-13616-1-git-send-email-namhyung@xxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/ui/browsers/hists.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index 901d481..08c09ad 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -480,7 +480,7 @@ static int hist_browser__run(struct hist_browser *browser, const char *help)

hists__browser_title(browser->hists, hbt, title, sizeof(title));

- if (ui_browser__show(&browser->b, title, help) < 0)
+ if (ui_browser__show(&browser->b, title, "%s", help) < 0)
return -1;

while (1) {