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

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[ Upstream commit 66eb02d839 ]

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>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Lorenzo Bianconi
2018-08-31 01:04:13 +02:00
committed by Greg Kroah-Hartman
parent 25cb854434
commit 43a01409ef
1 changed files with 1 additions and 1 deletions
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2
net/mac80211/tx.c
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@@ -3123,7 +3123,7 @@ 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))