From 8e9310c1790566ea2de2e8b6e1c04bacbbee648c Mon Sep 17 00:00:00 2001 From: Bob Copeland Date: Sat, 16 Jan 2010 14:36:53 -0500 Subject: mac80211: pid: replace open-coded msecs_to_jiffies Code directly scaling by HZ and rounding can be more efficiently and clearly performed with msecs_to_jiffies. Signed-off-by: Bob Copeland Signed-off-by: John W. Linville --- net/mac80211/rc80211_pid_algo.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) (limited to 'net/mac80211/rc80211_pid_algo.c') diff --git a/net/mac80211/rc80211_pid_algo.c b/net/mac80211/rc80211_pid_algo.c index 29bc4c516238..2652a374974e 100644 --- a/net/mac80211/rc80211_pid_algo.c +++ b/net/mac80211/rc80211_pid_algo.c @@ -157,9 +157,7 @@ static void rate_control_pid_sample(struct rc_pid_info *pinfo, /* In case nothing happened during the previous control interval, turn * the sharpening factor on. */ - period = (HZ * pinfo->sampling_period + 500) / 1000; - if (!period) - period = 1; + period = msecs_to_jiffies(pinfo->sampling_period); if (jiffies - spinfo->last_sample > 2 * period) spinfo->sharp_cnt = pinfo->sharpen_duration; @@ -252,9 +250,7 @@ static void rate_control_pid_tx_status(void *priv, struct ieee80211_supported_ba } /* Update PID controller state. */ - period = (HZ * pinfo->sampling_period + 500) / 1000; - if (!period) - period = 1; + period = msecs_to_jiffies(pinfo->sampling_period); if (time_after(jiffies, spinfo->last_sample + period)) rate_control_pid_sample(pinfo, sband, sta, spinfo); } -- cgit v1.2.3-59-g8ed1b