diff options
Diffstat (limited to 'package/kernel/mac80211/patches/348-mac80211-initialize-SMPS-field-in-HT-capabilities.patch')
| -rw-r--r-- | package/kernel/mac80211/patches/348-mac80211-initialize-SMPS-field-in-HT-capabilities.patch | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/348-mac80211-initialize-SMPS-field-in-HT-capabilities.patch b/package/kernel/mac80211/patches/348-mac80211-initialize-SMPS-field-in-HT-capabilities.patch new file mode 100644 index 0000000000..118f535716 --- /dev/null +++ b/package/kernel/mac80211/patches/348-mac80211-initialize-SMPS-field-in-HT-capabilities.patch @@ -0,0 +1,41 @@ +From: Felix Fietkau <nbd@nbd.name> +Date: Wed, 11 Jan 2017 23:30:20 +0100 +Subject: [PATCH] mac80211: initialize SMPS field in HT capabilities + +ibss and mesh modes copy the ht capabilites from the band without +overriding the SMPS state. Unfortunately the default value 0 for the +SMPS field means static SMPS instead of disabled. + +This results in HT ibss and mesh setups using only single-stream rates, +even though SMPS is not supposed to be active. + +Initialize SMPS to disabled for all bands on ieee80211_hw_register to +ensure that the value is sane where it is not overriden with the real +SMPS state. + +Reported-by: Elektra Wagenrad <onelektra@gmx.net> +Signed-off-by: Felix Fietkau <nbd@nbd.name> +--- + +--- a/net/mac80211/main.c ++++ b/net/mac80211/main.c +@@ -908,10 +908,15 @@ int ieee80211_register_hw(struct ieee802 + supp_ht = supp_ht || sband->ht_cap.ht_supported; + supp_vht = supp_vht || sband->vht_cap.vht_supported; + +- if (sband->ht_cap.ht_supported) +- local->rx_chains = +- max(ieee80211_mcs_to_chains(&sband->ht_cap.mcs), +- local->rx_chains); ++ if (!sband->ht_cap.ht_supported) ++ continue; ++ ++ local->rx_chains = ++ max(ieee80211_mcs_to_chains(&sband->ht_cap.mcs), ++ local->rx_chains); ++ ++ sband->ht_cap.cap |= WLAN_HT_CAP_SM_PS_DISABLED << ++ IEEE80211_HT_CAP_SM_PS_SHIFT; + + /* TODO: consider VHT for RX chains, hopefully it's the same */ + } |