mac80211: clean up mesh code
There's various code with strange indentation,
questionable loop and locking constructs, etc.
The bigger change is moving the "sdata" argument
to the first argument of all functions, like all
other mac80211 functions that have one.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/net/mac80211/mesh_sync.c b/net/mac80211/mesh_sync.c
index aa8d1e4..05a256b 100644
--- a/net/mac80211/mesh_sync.c
+++ b/net/mac80211/mesh_sync.c
@@ -43,7 +43,7 @@
static bool mesh_peer_tbtt_adjusting(struct ieee802_11_elems *ie)
{
return (ie->mesh_config->meshconf_cap &
- IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING) != 0;
+ IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING) != 0;
}
void mesh_sync_adjust_tbtt(struct ieee80211_sub_if_data *sdata)
@@ -112,7 +112,8 @@
if (elems->mesh_config && mesh_peer_tbtt_adjusting(elems)) {
clear_sta_flag(sta, WLAN_STA_TOFFSET_KNOWN);
- msync_dbg(sdata, "STA %pM : is adjusting TBTT\n", sta->sta.addr);
+ msync_dbg(sdata, "STA %pM : is adjusting TBTT\n",
+ sta->sta.addr);
goto no_sync;
}
@@ -129,18 +130,15 @@
sta->t_offset = t_t - t_r;
if (test_sta_flag(sta, WLAN_STA_TOFFSET_KNOWN)) {
- s64 t_clockdrift = sta->t_offset_setpoint
- - sta->t_offset;
+ s64 t_clockdrift = sta->t_offset_setpoint - sta->t_offset;
msync_dbg(sdata,
"STA %pM : sta->t_offset=%lld, sta->t_offset_setpoint=%lld, t_clockdrift=%lld\n",
- sta->sta.addr,
- (long long) sta->t_offset,
- (long long)
- sta->t_offset_setpoint,
+ sta->sta.addr, (long long) sta->t_offset,
+ (long long) sta->t_offset_setpoint,
(long long) t_clockdrift);
if (t_clockdrift > TOFFSET_MAXIMUM_ADJUSTMENT ||
- t_clockdrift < -TOFFSET_MAXIMUM_ADJUSTMENT) {
+ t_clockdrift < -TOFFSET_MAXIMUM_ADJUSTMENT) {
msync_dbg(sdata,
"STA %pM : t_clockdrift=%lld too large, setpoint reset\n",
sta->sta.addr,
@@ -149,15 +147,10 @@
goto no_sync;
}
- rcu_read_unlock();
-
spin_lock_bh(&ifmsh->sync_offset_lock);
- if (t_clockdrift >
- ifmsh->sync_offset_clockdrift_max)
- ifmsh->sync_offset_clockdrift_max
- = t_clockdrift;
+ if (t_clockdrift > ifmsh->sync_offset_clockdrift_max)
+ ifmsh->sync_offset_clockdrift_max = t_clockdrift;
spin_unlock_bh(&ifmsh->sync_offset_lock);
-
} else {
sta->t_offset_setpoint = sta->t_offset - TOFFSET_SET_MARGIN;
set_sta_flag(sta, WLAN_STA_TOFFSET_KNOWN);
@@ -165,9 +158,7 @@
"STA %pM : offset was invalid, sta->t_offset=%lld\n",
sta->sta.addr,
(long long) sta->t_offset);
- rcu_read_unlock();
}
- return;
no_sync:
rcu_read_unlock();
@@ -177,14 +168,12 @@
{
struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
- WARN_ON(ifmsh->mesh_sp_id
- != IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET);
+ WARN_ON(ifmsh->mesh_sp_id != IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET);
BUG_ON(!rcu_read_lock_held());
spin_lock_bh(&ifmsh->sync_offset_lock);
- if (ifmsh->sync_offset_clockdrift_max >
- TOFFSET_MINIMUM_ADJUSTMENT) {
+ if (ifmsh->sync_offset_clockdrift_max > TOFFSET_MINIMUM_ADJUSTMENT) {
/* Since ajusting the tsf here would
* require a possibly blocking call
* to the driver tsf setter, we punt
@@ -193,8 +182,7 @@
msync_dbg(sdata,
"TBTT : kicking off TBTT adjustment with clockdrift_max=%lld\n",
ifmsh->sync_offset_clockdrift_max);
- set_bit(MESH_WORK_DRIFT_ADJUST,
- &ifmsh->wrkq_flags);
+ set_bit(MESH_WORK_DRIFT_ADJUST, &ifmsh->wrkq_flags);
ifmsh->adjusting_tbtt = true;
} else {
@@ -220,14 +208,11 @@
const struct ieee80211_mesh_sync_ops *ieee80211_mesh_sync_ops_get(u8 method)
{
- const struct ieee80211_mesh_sync_ops *ops = NULL;
- u8 i;
+ int i;
for (i = 0 ; i < ARRAY_SIZE(sync_methods); ++i) {
- if (sync_methods[i].method == method) {
- ops = &sync_methods[i].ops;
- break;
- }
+ if (sync_methods[i].method == method)
+ return &sync_methods[i].ops;
}
- return ops;
+ return NULL;
}