diff options
Diffstat (limited to 'drivers/net/wireless/mac80211_hwsim.c')
| -rw-r--r-- | drivers/net/wireless/mac80211_hwsim.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c index 5ea65fce0b83..1326f6121835 100644 --- a/drivers/net/wireless/mac80211_hwsim.c +++ b/drivers/net/wireless/mac80211_hwsim.c @@ -685,11 +685,16 @@ static void mac80211_hwsim_set_tsf(struct ieee80211_hw *hw, struct mac80211_hwsim_data *data = hw->priv; u64 now = mac80211_hwsim_get_tsf(hw, vif); u32 bcn_int = data->beacon_int; - s64 delta = tsf - now; + u64 delta = abs64(tsf - now); - data->tsf_offset += delta; /* adjust after beaconing with new timestamp at old TBTT */ - data->bcn_delta = do_div(delta, bcn_int); + if (tsf > now) { + data->tsf_offset += delta; + data->bcn_delta = do_div(delta, bcn_int); + } else { + data->tsf_offset -= delta; + data->bcn_delta = -do_div(delta, bcn_int); + } } static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw, |