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authorJohannes Berg <johannes.berg@intel.com>2023-01-18 12:51:53 +0300
committerKalle Valo <kvalo@kernel.org>2023-01-19 21:01:41 +0300
commit4ca69027691a0039279b64cfa0aa511d9c9fde59 (patch)
tree89bee1d5b693a7c06b444e9542c708a2054f7e6c /net/wireless
parentdc09766c755c5b06d71fe5d2f4f3d431540eaae0 (diff)
downloadlinux-4ca69027691a0039279b64cfa0aa511d9c9fde59.tar.xz
wifi: wireless: deny wireless extensions on MLO-capable devices
These are WiFi 7 devices that will be introduced into the market in 2023, with new drivers. Wireless extensions haven't been in real development since 2006. Since wireless has evolved a lot, and continues to evolve significantly with Multi-Link Operation, there's really no good way to still support wireless extensions for devices that do MLO. Stop supporting wireless extensions for new devices. We don't consider this a regression since no such devices (apart from hwsim) exist yet. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20230118105152.45f85078a1e0.Ib9eabc2ec5bf6b0244e4d973e93baaa3d8c91bd8@changeid
Diffstat (limited to 'net/wireless')
-rw-r--r--net/wireless/wext-core.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/net/wireless/wext-core.c b/net/wireless/wext-core.c
index 6e5f5ea92ddb..13a72b17248e 100644
--- a/net/wireless/wext-core.c
+++ b/net/wireless/wext-core.c
@@ -662,6 +662,8 @@ struct iw_statistics *get_wireless_stats(struct net_device *dev)
dev->ieee80211_ptr->wiphy->wext &&
dev->ieee80211_ptr->wiphy->wext->get_wireless_stats) {
wireless_warn_cfg80211_wext();
+ if (dev->ieee80211_ptr->wiphy->flags & WIPHY_FLAG_SUPPORTS_MLO)
+ return NULL;
return dev->ieee80211_ptr->wiphy->wext->get_wireless_stats(dev);
}
#endif
@@ -702,6 +704,8 @@ static iw_handler get_handler(struct net_device *dev, unsigned int cmd)
#ifdef CONFIG_CFG80211_WEXT
if (dev->ieee80211_ptr && dev->ieee80211_ptr->wiphy) {
wireless_warn_cfg80211_wext();
+ if (dev->ieee80211_ptr->wiphy->flags & WIPHY_FLAG_SUPPORTS_MLO)
+ return NULL;
handlers = dev->ieee80211_ptr->wiphy->wext;
}
#endif