From: Arve Hjønnevåg <arve@android.com>
Date: Fri, 17 Oct 2008 22:28:08 +0000 (-0700)
Subject: Input: Use monotonic time for event time stamps.
X-Git-Tag: firefly_0821_release~9833^2~5^2~328
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=36c83de7181079b3e5ce339c6d15172adaab960a;p=firefly-linux-kernel-4.4.55.git

Input: Use monotonic time for event time stamps.

Since wall time can jump backwards, it cannot be used to determine if one
event occured before another or for how long a key was pressed.

Signed-off-by: Arve Hjønnevåg <arve@android.com>
---

diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
index 98bb5be0a6d1..3a24ed442466 100644
--- a/drivers/input/evdev.c
+++ b/drivers/input/evdev.c
@@ -81,8 +81,11 @@ static void evdev_event(struct input_handle *handle,
 	struct evdev *evdev = handle->private;
 	struct evdev_client *client;
 	struct input_event event;
+	struct timespec ts;
 
-	do_gettimeofday(&event.time);
+	ktime_get_ts(&ts);
+	event.time.tv_sec = ts.tv_sec;
+	event.time.tv_usec = ts.tv_nsec / NSEC_PER_USEC;
 	event.type = type;
 	event.code = code;
 	event.value = value;