[PATCH 4/6] perf ui browser: Fixup cleaning unused lines at the bottom

From: Arnaldo Carvalho de Melo
Date: Fri Apr 06 2018 - 07:25:15 EST

From: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>

Now that we can have extra title lines we should use ui_browser->rows
and not ->height when drawing lines, as well as adding
ui_browser->extra_title_lines to browser->y when cleaning unused lines
at the bottom, otherwise we end up clobbering with spaces the last line
just shown by ui_browser->refresh() routine.

Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: Andi Kleen <ak@xxxxxxxxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Jin Yao <yao.jin@xxxxxxxxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Wang Nan <wangnan0@xxxxxxxxxx>
Fixes: ef9ff6017e3c ("perf ui browser: Move the extra title lines from the hists browser")
Link: https://lkml.kernel.org/n/tip-dfcpokt1pm5ixm8n9pxwtstz@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
tools/perf/ui/browser.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/perf/ui/browser.c b/tools/perf/ui/browser.c
index d7bb2591838e..4f75561424ed 100644
--- a/tools/perf/ui/browser.c
+++ b/tools/perf/ui/browser.c
@@ -343,8 +343,8 @@ static int __ui_browser__refresh(struct ui_browser *browser)
width += 1;

- SLsmg_fill_region(browser->y + row, browser->x,
- browser->height - row, width, ' ');
+ SLsmg_fill_region(browser->y + row + browser->extra_title_lines, browser->x,
+ browser->rows - row, width, ' ');

return 0;