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Diffstat (limited to 'net/mac80211/rc80211_pid_algo.c')
-rw-r--r--net/mac80211/rc80211_pid_algo.c9
1 files changed, 3 insertions, 6 deletions
diff --git a/net/mac80211/rc80211_pid_algo.c b/net/mac80211/rc80211_pid_algo.c
index 29bc4c516238..aeda65466f3e 100644
--- a/net/mac80211/rc80211_pid_algo.c
+++ b/net/mac80211/rc80211_pid_algo.c
@@ -13,6 +13,7 @@
#include <linux/types.h>
#include <linux/skbuff.h>
#include <linux/debugfs.h>
+#include <linux/slab.h>
#include <net/mac80211.h>
#include "rate.h"
#include "mesh.h"
@@ -157,9 +158,7 @@ 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 +251,7 @@ 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);
}