3 files changed, 17 insertions, 8 deletions

diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 10fc7e844872..e8459e260c3b 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -580,20 +580,14 @@ static void *display_thread_tui(void *arg)
 static void *display_thread(void *arg)
 {
         struct pollfd stdin_poll = { .fd = 0, .events = POLLIN };
-        struct termios tc, save;
+        struct termios save;
         struct perf_top *top = arg;
         int delay_msecs, c;
 
-        tcgetattr(0, &save);
-        tc = save;
-        tc.c_lflag &= ~(ICANON | ECHO);
-        tc.c_cc[VMIN] = 0;
-        tc.c_cc[VTIME] = 0;
-
         pthread__unblock_sigwinch();
 repeat:
         delay_msecs = top->delay_secs * 1000;
-        tcsetattr(0, TCSANOW, &tc);
+        set_term_quiet_input(&save);
         /* trash return*/
         getc(stdin);
 
diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c
index b82a93cb1694..25822bdf7bbf 100644
--- a/tools/perf/util/util.c
+++ b/tools/perf/util/util.c
@@ -13,6 +13,7 @@
 #include <limits.h>
 #include <byteswap.h>
 #include <linux/kernel.h>
+#include <unistd.h>
 
 /*
  * XXX We need to find a better place for these things...
@@ -282,6 +283,18 @@ void get_term_dimensions(struct winsize *ws)
         ws->ws_col = 80;
 }
 
+void set_term_quiet_input(struct termios *old)
+{
+        struct termios tc;
+
+        tcgetattr(0, old);
+        tc = *old;
+        tc.c_lflag &= ~(ICANON | ECHO);
+        tc.c_cc[VMIN] = 0;
+        tc.c_cc[VTIME] = 0;
+        tcsetattr(0, TCSANOW, &tc);
+}
+
 static void set_tracing_events_path(const char *mountpoint)
 {
         snprintf(tracing_events_path, sizeof(tracing_events_path), "%s/%s",
diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h
index 03a1ea2266b8..d6a79b1fb28c 100644
--- a/tools/perf/util/util.h
+++ b/tools/perf/util/util.h
@@ -75,6 +75,7 @@
 #include <api/fs/debugfs.h>
 #include <termios.h>
 #include <linux/bitops.h>
+#include <termios.h>
 
 extern const char *graph_line;
 extern const char *graph_dotted_line;
@@ -308,6 +309,7 @@ extern unsigned int page_size;
 extern int cacheline_size;
 
 void get_term_dimensions(struct winsize *ws);
+void set_term_quiet_input(struct termios *old);
 
 struct parse_tag {
         char tag;