71 lines
2.2 KiB
Diff
71 lines
2.2 KiB
Diff
From: Felix Fietkau <nbd@nbd.name>
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Date: Wed, 14 Dec 2016 20:06:08 +0100
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Subject: [PATCH] mac80211: minstrel_ht: move short preamble check out of
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get_rate
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Test short preamble support in minstrel_ht_update_caps instead of
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looking at the per-packet flag. Makes the code more efficient.
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Signed-off-by: Felix Fietkau <nbd@nbd.name>
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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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@@ -14,6 +14,7 @@
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#include <linux/ieee80211.h>
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#include <net/mac80211.h>
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#include "rate.h"
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+#include "sta_info.h"
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#include "rc80211_minstrel.h"
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#include "rc80211_minstrel_ht.h"
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@@ -1049,22 +1050,6 @@ minstrel_get_sample_rate(struct minstrel
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}
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static void
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-minstrel_ht_check_cck_shortpreamble(struct minstrel_priv *mp,
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- struct minstrel_ht_sta *mi, bool val)
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-{
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- u8 supported = mi->supported[MINSTREL_CCK_GROUP];
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-
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- if (!supported || !mi->cck_supported_short)
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- return;
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-
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- if (supported & (mi->cck_supported_short << (val * 4)))
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- return;
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-
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- supported ^= mi->cck_supported_short | (mi->cck_supported_short << 4);
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- mi->supported[MINSTREL_CCK_GROUP] = supported;
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-}
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-
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-static void
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minstrel_ht_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta,
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struct ieee80211_tx_rate_control *txrc)
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{
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@@ -1087,7 +1072,6 @@ minstrel_ht_get_rate(void *priv, struct
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minstrel_aggr_check(sta, txrc->skb);
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info->flags |= mi->tx_flags;
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- minstrel_ht_check_cck_shortpreamble(mp, mi, txrc->short_preamble);
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#ifdef CPTCFG_MAC80211_DEBUGFS
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if (mp->fixed_rate_idx != -1)
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@@ -1168,6 +1152,7 @@ minstrel_ht_update_caps(void *priv, stru
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struct ieee80211_mcs_info *mcs = &sta->ht_cap.mcs;
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u16 ht_cap = sta->ht_cap.cap;
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struct ieee80211_sta_vht_cap *vht_cap = &sta->vht_cap;
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+ struct sta_info *sinfo = container_of(sta, struct sta_info, sta);
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int use_vht;
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int n_supported = 0;
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int ack_dur;
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@@ -1302,6 +1287,9 @@ minstrel_ht_update_caps(void *priv, stru
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if (!n_supported)
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goto use_legacy;
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+ if (test_sta_flag(sinfo, WLAN_STA_SHORT_PREAMBLE))
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+ mi->cck_supported_short |= mi->cck_supported_short << 4;
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+
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/* create an initial rate table with the lowest supported rates */
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minstrel_ht_update_stats(mp, mi);
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minstrel_ht_update_rates(mp, mi);
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