33 lines
929 B
Diff
33 lines
929 B
Diff
From: Felix Fietkau <nbd@openwrt.org>
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Date: Sat, 15 Nov 2014 22:13:38 +0100
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Subject: [PATCH] mac80211: minstrel_ht: add a small optimization to
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minstrel_aggr_check
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Check the queue mapping earlier, skb->queue_mapping is more likely than
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skb->data to still be in d-cache.
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Signed-off-by: Felix Fietkau <nbd@openwrt.org>
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---
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--- a/net/mac80211/rc80211_minstrel_ht.c
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+++ b/net/mac80211/rc80211_minstrel_ht.c
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@@ -690,6 +690,9 @@ minstrel_aggr_check(struct ieee80211_sta
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struct sta_info *sta = container_of(pubsta, struct sta_info, sta);
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u16 tid;
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+ if (skb_get_queue_mapping(skb) == IEEE80211_AC_VO)
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+ return;
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+
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if (unlikely(!ieee80211_is_data_qos(hdr->frame_control)))
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return;
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@@ -700,9 +703,6 @@ minstrel_aggr_check(struct ieee80211_sta
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if (likely(sta->ampdu_mlme.tid_tx[tid]))
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return;
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- if (skb_get_queue_mapping(skb) == IEEE80211_AC_VO)
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- return;
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-
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ieee80211_start_tx_ba_session(pubsta, tid, 5000);
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}
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