Felix Fietkau c041778c96 cfg80211: fix proto in ieee80211_data_to_8023 for frames without LLC header ... The PDU length of incoming LLC frames is set to the total skb payload size in __ieee80211_data_to_8023() of net/wireless/util.c which incorrectly includes the length of the IEEE 802.11 header. The resulting LLC frame header has a too large PDU length, causing the llc_fixup_skb() function of net/llc/llc_input.c to reject the incoming skb, effectively breaking STP. Solve the problem by properly substracting the IEEE 802.11 frame header size from the PDU length, allowing the LLC processor to pick up the incoming control messages. Special thanks to Gerry Rozema for tracking down the regression and proposing a suitable patch. Fixes: 2d1c304cb2 ("cfg80211: add function for 802.3 conversion with separate output buffer") Cc: stable@vger.kernel.org Reported-by: Gerry Rozema <gerryr@rozeware.com> Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Johannes Berg <johannes@sipsolutions.net>		2016-06-29 11:50:33 +02:00
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util.c	cfg80211: fix proto in ieee80211_data_to_8023 for frames without LLC header	2016-06-29 11:50:33 +02:00
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