package/kernel/mac80211/patches/388-mac80211-fix-an-off-by-one-issue-in-A-MSDU-max_subfr.patch

   1 From: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
   2 Date: Fri, 31 Aug 2018 01:04:13 +0200
   3 Subject: [PATCH] mac80211: fix an off-by-one issue in A-MSDU
   4  max_subframe computation
   5
   6 Initialize 'n' to 2 in order to take into account also the first
   7 packet in the estimation of max_subframe limit for a given A-MSDU
   8 since frag_tail pointer is NULL when ieee80211_amsdu_aggregate
   9 routine analyzes the second frame.
  10
  11 Fixes: 6e0456b54545 ("mac80211: add A-MSDU tx support")
  12 Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
  13 Signed-off-by: Johannes Berg <johannes.berg@intel.com>
  14 ---
  15
  16 --- a/net/mac80211/tx.c
  17 +++ b/net/mac80211/tx.c
  18 @@ -3166,7 +3166,7 @@ static bool ieee80211_amsdu_aggregate(st
  19         void *data;
  20         bool ret = false;
  21         unsigned int orig_len;
  22 -       int n = 1, nfrags, pad = 0;
  23 +       int n = 2, nfrags, pad = 0;
  24         u16 hdrlen;
  25
  26         if (!ieee80211_hw_check(&local->hw, TX_AMSDU))