0073a62855
Add support for QAM-256 in 2.4GHz 802.11n. This is non-standard and comunicate vht capabilities in 2.4GHz 802.11n permittin, for supported clients, to benefits for additional data rate. Many driver supports this, for a start enable this for ath10k and ath11k.
33 lines
1.1 KiB
Diff
33 lines
1.1 KiB
Diff
From 793bfa410bd16c273beb390818ab44886c680a22 Mon Sep 17 00:00:00 2001
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From: Christian Marangi <ansuelsmth@gmail.com>
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Date: Wed, 14 Jun 2023 10:20:31 +0200
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Subject: [PATCH 2/4] mac80211: add logic to skip useless VHT cap check in
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ieee80211_sta_cap_rx_bw
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Add logic to skip useless VHT cap check in ieee80211_sta_cap_rx_bw in
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the case where HT doesn't indicate support for 40MHz.
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If the STA doesn't indicate support for 40MHz then it doesn't make sense
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to check additional support for 80MHz, 80+80MHz or 160MHz
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Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
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---
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net/mac80211/vht.c | 6 ++++++
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1 file changed, 6 insertions(+)
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--- a/net/mac80211/vht.c
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+++ b/net/mac80211/vht.c
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@@ -442,6 +442,12 @@ ieee80211_sta_cap_chan_bw(struct link_st
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NL80211_CHAN_WIDTH_40 : NL80211_CHAN_WIDTH_20;
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}
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+ /* Skip checking VHT cap and set to 20MHz if HT cap doesn't indicate
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+ * support for 40MHz.
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+ */
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+ if (!(link_sta->pub->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40))
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+ return NL80211_CHAN_WIDTH_20;
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+
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cap_width = vht_cap->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK;
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if (cap_width == IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ)
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