diff options
| -rw-r--r-- | net/mac80211/cfg.c | 3 | ||||
| -rw-r--r-- | net/mac80211/ieee80211_i.h | 2 | ||||
| -rw-r--r-- | net/mac80211/main.c | 22 | ||||
| -rw-r--r-- | net/mac80211/offchannel.c | 6 | ||||
| -rw-r--r-- | net/mac80211/scan.c | 4 |
5 files changed, 37 insertions, 0 deletions
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 05f3a313db88..70a5d262815f 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -2189,6 +2189,9 @@ static int ieee80211_start_roc_work(struct ieee80211_local *local, lockdep_assert_held(&local->mtx); + if (local->use_chanctx && !local->ops->remain_on_channel) + return -EOPNOTSUPP; + roc = kzalloc(sizeof(*roc), GFP_KERNEL); if (!roc) return -ENOMEM; diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 9a058e58d53e..8fa00adcb8c0 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -882,6 +882,8 @@ struct ieee80211_local { bool wiphy_ciphers_allocated; + bool use_chanctx; + /* protects the aggregated multicast list and filter calls */ spinlock_t filter_lock; diff --git a/net/mac80211/main.c b/net/mac80211/main.c index d709a5d42f69..0dd1ea241c54 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -540,6 +540,7 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, struct ieee80211_local *local; int priv_size, i; struct wiphy *wiphy; + bool use_chanctx; if (WARN_ON(!ops->tx || !ops->start || !ops->stop || !ops->config || !ops->add_interface || !ops->remove_interface || @@ -555,6 +556,7 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, !!ops->unassign_vif_chanctx; if (WARN_ON(i != 0 && i != 5)) return NULL; + use_chanctx = i == 5; /* Ensure 32-byte alignment of our private data and hw private data. * We use the wiphy priv data for both our ieee80211_local and for @@ -606,6 +608,7 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, local->hw.priv = (char *)local + ALIGN(sizeof(*local), NETDEV_ALIGN); local->ops = ops; + local->use_chanctx = use_chanctx; /* set up some defaults */ local->hw.queues = 1; @@ -729,6 +732,25 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) if ((hw->flags & IEEE80211_HW_SCAN_WHILE_IDLE) && !local->ops->hw_scan) return -EINVAL; + if (!local->use_chanctx) { + for (i = 0; i < local->hw.wiphy->n_iface_combinations; i++) { + const struct ieee80211_iface_combination *comb; + + comb = &local->hw.wiphy->iface_combinations[i]; + + if (comb->num_different_channels > 1) + return -EINVAL; + } + + /* + * WDS is currently prohibited when channel contexts are used + * because there's no clear definition of which channel WDS + * type interfaces use + */ + if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_WDS)) + return -EINVAL; + } + /* Only HW csum features are currently compatible with mac80211 */ feature_whitelist = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_HW_CSUM; diff --git a/net/mac80211/offchannel.c b/net/mac80211/offchannel.c index 83608ac16780..9c52fc4a045e 100644 --- a/net/mac80211/offchannel.c +++ b/net/mac80211/offchannel.c @@ -107,6 +107,9 @@ void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local, { struct ieee80211_sub_if_data *sdata; + if (WARN_ON(local->use_chanctx)) + return; + /* * notify the AP about us leaving the channel and stop all * STA interfaces. @@ -145,6 +148,9 @@ void ieee80211_offchannel_return(struct ieee80211_local *local, { struct ieee80211_sub_if_data *sdata; + if (WARN_ON(local->use_chanctx)) + return; + mutex_lock(&local->iflist_mtx); list_for_each_entry(sdata, &local->interfaces, list) { if (sdata->vif.type == NL80211_IFTYPE_P2P_DEVICE) diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c index c4cdbde24fd3..fdaa505dab45 100644 --- a/net/mac80211/scan.c +++ b/net/mac80211/scan.c @@ -336,6 +336,10 @@ EXPORT_SYMBOL(ieee80211_scan_completed); static int ieee80211_start_sw_scan(struct ieee80211_local *local) { + /* Software scan is not supported in multi-channel cases */ + if (local->use_chanctx) + return -EOPNOTSUPP; + /* * Hardware/driver doesn't support hw_scan, so use software * scanning instead. First send a nullfunc frame with power save |