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mac80211: fix an off-by-one issue in A-MSDU max_subframe computation

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Initialize 'n' to 2 in order to take into account also the first
packet in the estimation of max_subframe limit for a given A-MSDU
since frag_tail pointer is NULL when ieee80211_amsdu_aggregate
routine analyzes the second frame.

Fixes: 6e0456b545 ("mac80211: add A-MSDU tx support")
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Lorenzo Bianconi 2018-08-31 01:04:13 +02:00 committed by Johannes Berg
parent aa58acf325
commit 66eb02d839
1 changed files with 1 additions and 1 deletions
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2
net/mac80211/tx.c
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@ -3174,7 +3174,7 @@ static bool ieee80211_amsdu_aggregate(struct ieee80211_sub_if_data *sdata,
void *data;
bool ret = false;
unsigned int orig_len;
int n = 1, nfrags, pad = 0;
int n = 2, nfrags, pad = 0;
u16 hdrlen;
if (!ieee80211_hw_check(&local->hw, TX_AMSDU))