From 24bba078eca099b5bd25e17e97b485f013589f8c Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Tue, 27 Feb 2018 13:03:07 +0100 Subject: mac80211: support A-MSDU in fast-rx Only works if the IV was stripped from packets. Create a smaller variant of ieee80211_rx_h_amsdu, which bypasses checks already done within the fast-rx context. In order to do so, update cfg80211's ieee80211_data_to_8023_exthdr() to take the offset between header and snap. Signed-off-by: Felix Fietkau Signed-off-by: Johannes Berg --- net/wireless/util.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'net/wireless') diff --git a/net/wireless/util.c b/net/wireless/util.c index c69160694b6c..d112e9a89364 100644 --- a/net/wireless/util.c +++ b/net/wireless/util.c @@ -420,7 +420,8 @@ unsigned int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr *meshhdr) EXPORT_SYMBOL(ieee80211_get_mesh_hdrlen); int ieee80211_data_to_8023_exthdr(struct sk_buff *skb, struct ethhdr *ehdr, - const u8 *addr, enum nl80211_iftype iftype) + const u8 *addr, enum nl80211_iftype iftype, + u8 data_offset) { struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; struct { @@ -434,7 +435,7 @@ int ieee80211_data_to_8023_exthdr(struct sk_buff *skb, struct ethhdr *ehdr, if (unlikely(!ieee80211_is_data_present(hdr->frame_control))) return -1; - hdrlen = ieee80211_hdrlen(hdr->frame_control); + hdrlen = ieee80211_hdrlen(hdr->frame_control) + data_offset; if (skb->len < hdrlen + 8) return -1; -- cgit v1.2.3