diff options
| author | Andrew Bresticker <abrestic@chromium.org> | 2014-07-22 14:43:51 -0700 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2014-07-23 13:08:35 -0400 |
| commit | 5d26b50813ea6206a7bbab2e645e68044f101ac5 (patch) | |
| tree | 6fa9758e646b40713fb0f3ea44406b884cd803e7 /drivers/net/wireless | |
| parent | c883ad555e074606a27362761da576e20c8ff6c6 (diff) | |
mac80211_hwsim: fix compiler warning on MIPS
The dividend in do_div() is expected to be an unsigned 64-bit integer,
which leads to the following warning when building for 32-bit MIPS:
drivers/net/wireless/mac80211_hwsim.c: In function 'mac80211_hwsim_set_tsf':
drivers/net/wireless/mac80211_hwsim.c:664:98: warning: comparison of distinct pointer types lacks a cast [enabled by default]
data->bcn_delta = do_div(delta, bcn_int);
Since we care about the signedness of delta when adjusting tsf_offset
and bcm_delta, use the absolute value for the division and compare
the two timestamps to determine the sign.
Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless')
| -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 eba51460a5de..f39f504cc3a0 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, |