diff options
Diffstat (limited to 'package/kernel/mac80211/patches/386-mac80211-do-not-convert-to-A-MSDU-if-frag-subframe-l.patch')
| -rw-r--r-- | package/kernel/mac80211/patches/386-mac80211-do-not-convert-to-A-MSDU-if-frag-subframe-l.patch | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/386-mac80211-do-not-convert-to-A-MSDU-if-frag-subframe-l.patch b/package/kernel/mac80211/patches/386-mac80211-do-not-convert-to-A-MSDU-if-frag-subframe-l.patch new file mode 100644 index 0000000000..1d88902251 --- /dev/null +++ b/package/kernel/mac80211/patches/386-mac80211-do-not-convert-to-A-MSDU-if-frag-subframe-l.patch @@ -0,0 +1,37 @@ +From: Lorenzo Bianconi <lorenzo.bianconi@redhat.com> +Date: Wed, 29 Aug 2018 21:03:25 +0200 +Subject: [PATCH] mac80211: do not convert to A-MSDU if frag/subframe + limited + +Do not start to aggregate packets in a A-MSDU frame (converting the +first subframe to A-MSDU, adding the header) if max_tx_fragments or +max_amsdu_subframes limits are already exceeded by it. In particular, +this happens when drivers set the limit to 1 to avoid A-MSDUs at all. + +Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com> +[reword commit message to be more precise] +Signed-off-by: Johannes Berg <johannes.berg@intel.com> +--- + +--- a/net/mac80211/tx.c ++++ b/net/mac80211/tx.c +@@ -3201,9 +3201,6 @@ static bool ieee80211_amsdu_aggregate(st + if (skb->len + head->len > max_amsdu_len) + goto unlock; + +- if (!ieee80211_amsdu_prepare_head(sdata, fast_tx, head)) +- goto out; +- + nfrags = 1 + skb_shinfo(skb)->nr_frags; + nfrags += 1 + skb_shinfo(head)->nr_frags; + frag_tail = &skb_shinfo(head)->frag_list; +@@ -3219,6 +3216,9 @@ static bool ieee80211_amsdu_aggregate(st + if (max_frags && nfrags > max_frags) + goto out; + ++ if (!ieee80211_amsdu_prepare_head(sdata, fast_tx, head)) ++ goto out; ++ + /* + * Pad out the previous subframe to a multiple of 4 by adding the + * padding to the next one, that's being added. Note that head->len |