{mac|nl}80211: Add station connected time
Add station connected time in debugfs. This will be helpful to get a
measure of stability of the connection and for debugging stress issues
Cc: Senthilkumar Balasubramanian <Senthilkumar.Balasubramanian@Atheros.com>
Signed-off-by: Mohammed Shafi Shajakhan <mshajakhan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/debugfs_sta.c b/net/mac80211/debugfs_sta.c
index c04a139..c008232 100644
--- a/net/mac80211/debugfs_sta.c
+++ b/net/mac80211/debugfs_sta.c
@@ -92,6 +92,31 @@
}
STA_OPS(inactive_ms);
+
+static ssize_t sta_connected_time_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ struct sta_info *sta = file->private_data;
+ struct timespec uptime;
+ struct tm result;
+ long connected_time_secs;
+ char buf[100];
+ int res;
+ do_posix_clock_monotonic_gettime(&uptime);
+ connected_time_secs = uptime.tv_sec - sta->last_connected;
+ time_to_tm(connected_time_secs, 0, &result);
+ result.tm_year -= 70;
+ result.tm_mday -= 1;
+ res = scnprintf(buf, sizeof(buf),
+ "years - %d\nmonths - %d\ndays - %d\nclock - %d:%d:%d\n\n",
+ result.tm_year, result.tm_mon, result.tm_mday,
+ result.tm_hour, result.tm_min, result.tm_sec);
+ return simple_read_from_buffer(userbuf, count, ppos, buf, res);
+}
+STA_OPS(connected_time);
+
+
+
static ssize_t sta_last_seq_ctrl_read(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
{
@@ -324,6 +349,7 @@
DEBUGFS_ADD(flags);
DEBUGFS_ADD(num_ps_buf_frames);
DEBUGFS_ADD(inactive_ms);
+ DEBUGFS_ADD(connected_time);
DEBUGFS_ADD(last_seq_ctrl);
DEBUGFS_ADD(agg_status);
DEBUGFS_ADD(dev);