From: Johannes Berg Date: Wed, 18 Jan 2023 09:51:53 +0000 (+0100) Subject: wifi: wireless: deny wireless extensions on MLO-capable devices X-Git-Tag: v6.3-rc1~162^2~227^2 X-Git-Url: https://repo.jachan.dev/linux.git/commitdiff_plain/4ca69027691a 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 Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20230118105152.45f85078a1e0.Ib9eabc2ec5bf6b0244e4d973e93baaa3d8c91bd8@changeid --- 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