From aa129bcd34b6de2c37b5145da54a57901d5195bc Mon Sep 17 00:00:00 2001 From: Veerendranath Jakkam Date: Sat, 30 Jul 2022 10:56:42 +0530 Subject: wifi: cfg80211: Prevent cfg80211_wext_siwencodeext() on MLD Currently, MLO support is not added for WEXT code and WEXT handlers are prevented on MLDs. Prevent WEXT handler cfg80211_wext_siwencodeext() also on MLD which is missed in commit 7b0a0e3c3a88 ("wifi: cfg80211: do some rework towards MLO link APIs") Signed-off-by: Veerendranath Jakkam Link: https://lore.kernel.org/r/20220730052643.1959111-3-quic_vjakkam@quicinc.com Signed-off-by: Johannes Berg --- net/wireless/wext-compat.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'net/wireless') diff --git a/net/wireless/wext-compat.c b/net/wireless/wext-compat.c index a9767bfe7330..129d3bb91dfb 100644 --- a/net/wireless/wext-compat.c +++ b/net/wireless/wext-compat.c @@ -685,6 +685,13 @@ static int cfg80211_wext_siwencodeext(struct net_device *dev, !rdev->ops->set_default_key) return -EOPNOTSUPP; + wdev_lock(wdev); + if (wdev->valid_links) { + wdev_unlock(wdev); + return -EOPNOTSUPP; + } + wdev_unlock(wdev); + switch (ext->alg) { case IW_ENCODE_ALG_NONE: remove = true; -- cgit v1.2.3