diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 9001bd685b1e0829cb7b0908def86f6fb9dd5d2e..0af7464ef57b5c7472e587a35d52262522796e3f 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -1942,8 +1942,8 @@ enum ieee80211_hw_flags { * Use the %IEEE80211_RADIOTAP_VHT_KNOWN_* values. * * @netdev_features: netdev features to be set in each netdev created - * from this HW. Note only HW checksum features are currently - * compatible with mac80211. Other feature bits will be rejected. + * from this HW. Note that not all features are usable with mac80211, + * other features will be rejected during HW registration. * * @uapsd_queues: This bitmap is included in (re)association frame to indicate * for each access category if it is uAPSD trigger-enabled and delivery- diff --git a/net/mac80211/main.c b/net/mac80211/main.c index df3051d96afffbd1257442a16c3a2f198629fbcc..6dd6dd47a9dfeef299fe42856faee6d95c6b1e47 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -840,7 +840,7 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) /* Only HW csum features are currently compatible with mac80211 */ feature_whitelist = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | - NETIF_F_HW_CSUM; + NETIF_F_HW_CSUM | NETIF_F_SG | NETIF_F_HIGHDMA; if (WARN_ON(hw->netdev_features & ~feature_whitelist)) return -EINVAL; diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index 20a90b16eb4d54b004bb414c7a7581243d1a9892..3a421a04cbec2f052862486c14bb96ed577f3583 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -2864,6 +2864,12 @@ void __ieee80211_subif_start_xmit(struct sk_buff *skb, goto out; } + /* we cannot process non-linear frames on this path */ + if (skb_linearize(skb)) { + kfree_skb(skb); + goto out; + } + /* the frame could be fragmented, software-encrypted, and other things * so we cannot really handle checksum offload with it - fix it up in * software before we handle anything else.