From: Felix Fietkau Date: Mon, 19 Aug 2019 17:15:35 +0000 (+0200) Subject: mac80211: renumber subsys patches after update X-Git-Tag: v21.02.0-rc1~5214 X-Git-Url: http://git.openwrt.org/?p=openwrt%2Fopenwrt.git;a=commitdiff_plain;h=a886a0ecc882fd207694780cff91a4ada11bbe30 mac80211: renumber subsys patches after update Signed-off-by: Felix Fietkau --- diff --git a/package/kernel/mac80211/patches/subsys/300-mac80211-optimize-skb-resizing.patch b/package/kernel/mac80211/patches/subsys/300-mac80211-optimize-skb-resizing.patch new file mode 100644 index 0000000000..e2fbdc6787 --- /dev/null +++ b/package/kernel/mac80211/patches/subsys/300-mac80211-optimize-skb-resizing.patch @@ -0,0 +1,199 @@ +From: Felix Fietkau +Date: Sun, 17 Mar 2019 18:11:30 +0100 +Subject: [PATCH] mac80211: optimize skb resizing + +When forwarding unicast packets from ethernet to batman-adv over 802.11s +(with forwarding disabled), the typical required headroom to transmit +encrypted packets on mt76 is 32 (802.11) + 6 (802.11s) + 8 (CCMP) + +2 (padding) + 6 (LLC) + 18 (batman-adv) - 14 (old ethernet header) = 58 bytes. + +On systems where NET_SKB_PAD is 64 this leads to a call to pskb_expand_head +for every packet, since mac80211 also tries to allocate 16 bytes status +headroom for radiotap headers. + +This patch fixes these unnecessary reallocations by only requiring the extra +status headroom in ieee80211_tx_monitor() +If however a reallocation happens before that call, the status headroom gets +added there as well, in order to avoid double reallocation. + +The patch also cleans up the code by moving the headroom calculation to +ieee80211_skb_resize. + +Signed-off-by: Felix Fietkau +--- + +--- a/net/mac80211/ieee80211_i.h ++++ b/net/mac80211/ieee80211_i.h +@@ -1779,6 +1779,9 @@ int ieee80211_tx_control_port(struct wip + const u8 *dest, __be16 proto, bool unencrypted); + int ieee80211_probe_mesh_link(struct wiphy *wiphy, struct net_device *dev, + const u8 *buf, size_t len); ++int ieee80211_skb_resize(struct ieee80211_local *local, ++ struct ieee80211_sub_if_data *sdata, ++ struct sk_buff *skb, int hdrlen, int hdr_add); + + /* HT */ + void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata, +--- a/net/mac80211/status.c ++++ b/net/mac80211/status.c +@@ -655,6 +655,11 @@ void ieee80211_tx_monitor(struct ieee802 + struct net_device *prev_dev = NULL; + int rtap_len; + ++ if (ieee80211_skb_resize(local, NULL, skb, 0, 0)) { ++ dev_kfree_skb(skb); ++ return; ++ } ++ + /* send frame to monitor interfaces now */ + rtap_len = ieee80211_tx_radiotap_len(info); + if (WARN_ON_ONCE(skb_headroom(skb) < rtap_len)) { +--- a/net/mac80211/tx.c ++++ b/net/mac80211/tx.c +@@ -1936,37 +1936,53 @@ static bool ieee80211_tx(struct ieee8021 + } + + /* device xmit handlers */ +- +-static int ieee80211_skb_resize(struct ieee80211_sub_if_data *sdata, +- struct sk_buff *skb, +- int head_need, bool may_encrypt) ++int ieee80211_skb_resize(struct ieee80211_local *local, ++ struct ieee80211_sub_if_data *sdata, ++ struct sk_buff *skb, int hdr_len, int hdr_extra) + { +- struct ieee80211_local *local = sdata->local; ++ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + struct ieee80211_hdr *hdr; +- bool enc_tailroom; +- int tail_need = 0; ++ int head_need, head_max; ++ int tail_need, tail_max; ++ bool enc_tailroom = false; + +- hdr = (struct ieee80211_hdr *) skb->data; +- enc_tailroom = may_encrypt && +- (sdata->crypto_tx_tailroom_needed_cnt || +- ieee80211_is_mgmt(hdr->frame_control)); ++ if (sdata && !hdr_len && ++ !(info->flags & IEEE80211_TX_INTFL_DONT_ENCRYPT)) { ++ hdr = (struct ieee80211_hdr *) skb->data; ++ enc_tailroom = (sdata->crypto_tx_tailroom_needed_cnt || ++ ieee80211_is_mgmt(hdr->frame_control)); ++ hdr_len += sdata->encrypt_headroom; ++ } + +- if (enc_tailroom) { +- tail_need = IEEE80211_ENCRYPT_TAILROOM; +- tail_need -= skb_tailroom(skb); +- tail_need = max_t(int, tail_need, 0); ++ head_need = head_max = hdr_len; ++ tail_need = tail_max = 0; ++ if (!sdata) { ++ head_need = head_max = local->tx_headroom; ++ } else { ++ head_max += hdr_extra; ++ head_max += max_t(int, local->tx_headroom, ++ local->hw.extra_tx_headroom); ++ head_need += local->hw.extra_tx_headroom; ++ ++ tail_max = IEEE80211_ENCRYPT_TAILROOM; ++ if (enc_tailroom) ++ tail_need = tail_max; + } + + if (skb_cloned(skb) && + (!ieee80211_hw_check(&local->hw, SUPPORTS_CLONED_SKBS) || + !skb_clone_writable(skb, ETH_HLEN) || enc_tailroom)) + I802_DEBUG_INC(local->tx_expand_skb_head_cloned); +- else if (head_need || tail_need) ++ else if (head_need > skb_headroom(skb) || ++ tail_need > skb_tailroom(skb)) + I802_DEBUG_INC(local->tx_expand_skb_head); + else + return 0; + +- if (pskb_expand_head(skb, head_need, tail_need, GFP_ATOMIC)) { ++ head_max = max_t(int, 0, head_max - skb_headroom(skb)); ++ tail_max = max_t(int, 0, tail_max - skb_tailroom(skb)); ++ ++ if (pskb_expand_head(skb, head_max, tail_max, GFP_ATOMIC)) { + wiphy_debug(local->hw.wiphy, + "failed to reallocate TX buffer\n"); + return -ENOMEM; +@@ -1982,18 +1998,8 @@ void ieee80211_xmit(struct ieee80211_sub + struct ieee80211_local *local = sdata->local; + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + struct ieee80211_hdr *hdr; +- int headroom; +- bool may_encrypt; +- +- may_encrypt = !(info->flags & IEEE80211_TX_INTFL_DONT_ENCRYPT); +- +- headroom = local->tx_headroom; +- if (may_encrypt) +- headroom += sdata->encrypt_headroom; +- headroom -= skb_headroom(skb); +- headroom = max_t(int, 0, headroom); + +- if (ieee80211_skb_resize(sdata, skb, headroom, may_encrypt)) { ++ if (ieee80211_skb_resize(local, sdata, skb, 0, 0)) { + ieee80211_free_txskb(&local->hw, skb); + return; + } +@@ -2774,29 +2780,13 @@ static struct sk_buff *ieee80211_build_h + } + + skb_pull(skb, skip_header_bytes); +- head_need = hdrlen + encaps_len + meshhdrlen - skb_headroom(skb); +- +- /* +- * So we need to modify the skb header and hence need a copy of +- * that. The head_need variable above doesn't, so far, include +- * the needed header space that we don't need right away. If we +- * can, then we don't reallocate right now but only after the +- * frame arrives at the master device (if it does...) +- * +- * If we cannot, however, then we will reallocate to include all +- * the ever needed space. Also, if we need to reallocate it anyway, +- * make it big enough for everything we may ever need. +- */ ++ head_need = hdrlen + encaps_len + meshhdrlen; + +- if (head_need > 0 || skb_cloned(skb)) { +- head_need += sdata->encrypt_headroom; +- head_need += local->tx_headroom; +- head_need = max_t(int, 0, head_need); +- if (ieee80211_skb_resize(sdata, skb, head_need, true)) { +- ieee80211_free_txskb(&local->hw, skb); +- skb = NULL; +- return ERR_PTR(-ENOMEM); +- } ++ if (ieee80211_skb_resize(local, sdata, skb, head_need, ++ sdata->encrypt_headroom)) { ++ ieee80211_free_txskb(&local->hw, skb); ++ skb = NULL; ++ return ERR_PTR(-ENOMEM); + } + + if (encaps_data) +@@ -3411,7 +3401,6 @@ static bool ieee80211_xmit_fast(struct i + struct ieee80211_local *local = sdata->local; + u16 ethertype = (skb->data[12] << 8) | skb->data[13]; + int extra_head = fast_tx->hdr_len - (ETH_HLEN - 2); +- int hw_headroom = sdata->local->hw.extra_tx_headroom; + struct ethhdr eth; + struct ieee80211_tx_info *info; + struct ieee80211_hdr *hdr = (void *)fast_tx->hdr; +@@ -3463,10 +3452,7 @@ static bool ieee80211_xmit_fast(struct i + * as the may-encrypt argument for the resize to not account for + * more room than we already have in 'extra_head' + */ +- if (unlikely(ieee80211_skb_resize(sdata, skb, +- max_t(int, extra_head + hw_headroom - +- skb_headroom(skb), 0), +- false))) { ++ if (unlikely(ieee80211_skb_resize(local, sdata, skb, extra_head, 0))) { + kfree_skb(skb); + return true; + } diff --git a/package/kernel/mac80211/patches/subsys/357-mac80211-optimize-skb-resizing.patch b/package/kernel/mac80211/patches/subsys/357-mac80211-optimize-skb-resizing.patch deleted file mode 100644 index e2fbdc6787..0000000000 --- a/package/kernel/mac80211/patches/subsys/357-mac80211-optimize-skb-resizing.patch +++ /dev/null @@ -1,199 +0,0 @@ -From: Felix Fietkau -Date: Sun, 17 Mar 2019 18:11:30 +0100 -Subject: [PATCH] mac80211: optimize skb resizing - -When forwarding unicast packets from ethernet to batman-adv over 802.11s -(with forwarding disabled), the typical required headroom to transmit -encrypted packets on mt76 is 32 (802.11) + 6 (802.11s) + 8 (CCMP) + -2 (padding) + 6 (LLC) + 18 (batman-adv) - 14 (old ethernet header) = 58 bytes. - -On systems where NET_SKB_PAD is 64 this leads to a call to pskb_expand_head -for every packet, since mac80211 also tries to allocate 16 bytes status -headroom for radiotap headers. - -This patch fixes these unnecessary reallocations by only requiring the extra -status headroom in ieee80211_tx_monitor() -If however a reallocation happens before that call, the status headroom gets -added there as well, in order to avoid double reallocation. - -The patch also cleans up the code by moving the headroom calculation to -ieee80211_skb_resize. - -Signed-off-by: Felix Fietkau ---- - ---- a/net/mac80211/ieee80211_i.h -+++ b/net/mac80211/ieee80211_i.h -@@ -1779,6 +1779,9 @@ int ieee80211_tx_control_port(struct wip - const u8 *dest, __be16 proto, bool unencrypted); - int ieee80211_probe_mesh_link(struct wiphy *wiphy, struct net_device *dev, - const u8 *buf, size_t len); -+int ieee80211_skb_resize(struct ieee80211_local *local, -+ struct ieee80211_sub_if_data *sdata, -+ struct sk_buff *skb, int hdrlen, int hdr_add); - - /* HT */ - void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata, ---- a/net/mac80211/status.c -+++ b/net/mac80211/status.c -@@ -655,6 +655,11 @@ void ieee80211_tx_monitor(struct ieee802 - struct net_device *prev_dev = NULL; - int rtap_len; - -+ if (ieee80211_skb_resize(local, NULL, skb, 0, 0)) { -+ dev_kfree_skb(skb); -+ return; -+ } -+ - /* send frame to monitor interfaces now */ - rtap_len = ieee80211_tx_radiotap_len(info); - if (WARN_ON_ONCE(skb_headroom(skb) < rtap_len)) { ---- a/net/mac80211/tx.c -+++ b/net/mac80211/tx.c -@@ -1936,37 +1936,53 @@ static bool ieee80211_tx(struct ieee8021 - } - - /* device xmit handlers */ -- --static int ieee80211_skb_resize(struct ieee80211_sub_if_data *sdata, -- struct sk_buff *skb, -- int head_need, bool may_encrypt) -+int ieee80211_skb_resize(struct ieee80211_local *local, -+ struct ieee80211_sub_if_data *sdata, -+ struct sk_buff *skb, int hdr_len, int hdr_extra) - { -- struct ieee80211_local *local = sdata->local; -+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); - struct ieee80211_hdr *hdr; -- bool enc_tailroom; -- int tail_need = 0; -+ int head_need, head_max; -+ int tail_need, tail_max; -+ bool enc_tailroom = false; - -- hdr = (struct ieee80211_hdr *) skb->data; -- enc_tailroom = may_encrypt && -- (sdata->crypto_tx_tailroom_needed_cnt || -- ieee80211_is_mgmt(hdr->frame_control)); -+ if (sdata && !hdr_len && -+ !(info->flags & IEEE80211_TX_INTFL_DONT_ENCRYPT)) { -+ hdr = (struct ieee80211_hdr *) skb->data; -+ enc_tailroom = (sdata->crypto_tx_tailroom_needed_cnt || -+ ieee80211_is_mgmt(hdr->frame_control)); -+ hdr_len += sdata->encrypt_headroom; -+ } - -- if (enc_tailroom) { -- tail_need = IEEE80211_ENCRYPT_TAILROOM; -- tail_need -= skb_tailroom(skb); -- tail_need = max_t(int, tail_need, 0); -+ head_need = head_max = hdr_len; -+ tail_need = tail_max = 0; -+ if (!sdata) { -+ head_need = head_max = local->tx_headroom; -+ } else { -+ head_max += hdr_extra; -+ head_max += max_t(int, local->tx_headroom, -+ local->hw.extra_tx_headroom); -+ head_need += local->hw.extra_tx_headroom; -+ -+ tail_max = IEEE80211_ENCRYPT_TAILROOM; -+ if (enc_tailroom) -+ tail_need = tail_max; - } - - if (skb_cloned(skb) && - (!ieee80211_hw_check(&local->hw, SUPPORTS_CLONED_SKBS) || - !skb_clone_writable(skb, ETH_HLEN) || enc_tailroom)) - I802_DEBUG_INC(local->tx_expand_skb_head_cloned); -- else if (head_need || tail_need) -+ else if (head_need > skb_headroom(skb) || -+ tail_need > skb_tailroom(skb)) - I802_DEBUG_INC(local->tx_expand_skb_head); - else - return 0; - -- if (pskb_expand_head(skb, head_need, tail_need, GFP_ATOMIC)) { -+ head_max = max_t(int, 0, head_max - skb_headroom(skb)); -+ tail_max = max_t(int, 0, tail_max - skb_tailroom(skb)); -+ -+ if (pskb_expand_head(skb, head_max, tail_max, GFP_ATOMIC)) { - wiphy_debug(local->hw.wiphy, - "failed to reallocate TX buffer\n"); - return -ENOMEM; -@@ -1982,18 +1998,8 @@ void ieee80211_xmit(struct ieee80211_sub - struct ieee80211_local *local = sdata->local; - struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); - struct ieee80211_hdr *hdr; -- int headroom; -- bool may_encrypt; -- -- may_encrypt = !(info->flags & IEEE80211_TX_INTFL_DONT_ENCRYPT); -- -- headroom = local->tx_headroom; -- if (may_encrypt) -- headroom += sdata->encrypt_headroom; -- headroom -= skb_headroom(skb); -- headroom = max_t(int, 0, headroom); - -- if (ieee80211_skb_resize(sdata, skb, headroom, may_encrypt)) { -+ if (ieee80211_skb_resize(local, sdata, skb, 0, 0)) { - ieee80211_free_txskb(&local->hw, skb); - return; - } -@@ -2774,29 +2780,13 @@ static struct sk_buff *ieee80211_build_h - } - - skb_pull(skb, skip_header_bytes); -- head_need = hdrlen + encaps_len + meshhdrlen - skb_headroom(skb); -- -- /* -- * So we need to modify the skb header and hence need a copy of -- * that. The head_need variable above doesn't, so far, include -- * the needed header space that we don't need right away. If we -- * can, then we don't reallocate right now but only after the -- * frame arrives at the master device (if it does...) -- * -- * If we cannot, however, then we will reallocate to include all -- * the ever needed space. Also, if we need to reallocate it anyway, -- * make it big enough for everything we may ever need. -- */ -+ head_need = hdrlen + encaps_len + meshhdrlen; - -- if (head_need > 0 || skb_cloned(skb)) { -- head_need += sdata->encrypt_headroom; -- head_need += local->tx_headroom; -- head_need = max_t(int, 0, head_need); -- if (ieee80211_skb_resize(sdata, skb, head_need, true)) { -- ieee80211_free_txskb(&local->hw, skb); -- skb = NULL; -- return ERR_PTR(-ENOMEM); -- } -+ if (ieee80211_skb_resize(local, sdata, skb, head_need, -+ sdata->encrypt_headroom)) { -+ ieee80211_free_txskb(&local->hw, skb); -+ skb = NULL; -+ return ERR_PTR(-ENOMEM); - } - - if (encaps_data) -@@ -3411,7 +3401,6 @@ static bool ieee80211_xmit_fast(struct i - struct ieee80211_local *local = sdata->local; - u16 ethertype = (skb->data[12] << 8) | skb->data[13]; - int extra_head = fast_tx->hdr_len - (ETH_HLEN - 2); -- int hw_headroom = sdata->local->hw.extra_tx_headroom; - struct ethhdr eth; - struct ieee80211_tx_info *info; - struct ieee80211_hdr *hdr = (void *)fast_tx->hdr; -@@ -3463,10 +3452,7 @@ static bool ieee80211_xmit_fast(struct i - * as the may-encrypt argument for the resize to not account for - * more room than we already have in 'extra_head' - */ -- if (unlikely(ieee80211_skb_resize(sdata, skb, -- max_t(int, extra_head + hw_headroom - -- skb_headroom(skb), 0), -- false))) { -+ if (unlikely(ieee80211_skb_resize(local, sdata, skb, extra_head, 0))) { - kfree_skb(skb); - return true; - } diff --git a/package/kernel/mac80211/patches/subsys/500-mac80211_configure_antenna_gain.patch b/package/kernel/mac80211/patches/subsys/500-mac80211_configure_antenna_gain.patch new file mode 100644 index 0000000000..3ca34b7ec3 --- /dev/null +++ b/package/kernel/mac80211/patches/subsys/500-mac80211_configure_antenna_gain.patch @@ -0,0 +1,160 @@ +--- a/include/net/cfg80211.h ++++ b/include/net/cfg80211.h +@@ -3344,6 +3344,7 @@ struct cfg80211_update_owe_info { + * (as advertised by the nl80211 feature flag.) + * @get_tx_power: store the current TX power into the dbm variable; + * return 0 if successful ++ * @set_antenna_gain: set antenna gain to reduce maximum tx power if necessary + * + * @set_wds_peer: set the WDS peer for a WDS interface + * +@@ -3656,6 +3657,7 @@ struct cfg80211_ops { + enum nl80211_tx_power_setting type, int mbm); + int (*get_tx_power)(struct wiphy *wiphy, struct wireless_dev *wdev, + int *dbm); ++ int (*set_antenna_gain)(struct wiphy *wiphy, int dbi); + + int (*set_wds_peer)(struct wiphy *wiphy, struct net_device *dev, + const u8 *addr); +--- a/include/net/mac80211.h ++++ b/include/net/mac80211.h +@@ -1476,6 +1476,7 @@ enum ieee80211_smps_mode { + * + * @power_level: requested transmit power (in dBm), backward compatibility + * value only that is set to the minimum of all interfaces ++ * @max_antenna_gain: maximum antenna gain adjusted by user config (in dBi) + * + * @chandef: the channel definition to tune to + * @radar_enabled: whether radar detection is enabled +@@ -1496,6 +1497,7 @@ enum ieee80211_smps_mode { + struct ieee80211_conf { + u32 flags; + int power_level, dynamic_ps_timeout; ++ int max_antenna_gain; + + u16 listen_interval; + u8 ps_dtim_period; +--- a/include/uapi/linux/nl80211.h ++++ b/include/uapi/linux/nl80211.h +@@ -2356,6 +2356,9 @@ enum nl80211_commands { + * + * @NL80211_ATTR_TWT_RESPONDER: Enable target wait time responder support. + * ++ * @NL80211_ATTR_WIPHY_ANTENNA_GAIN: Configured antenna gain. Used to reduce ++ * transmit power to stay within regulatory limits. u32, dBi. ++ * + * @NUM_NL80211_ATTR: total number of nl80211_attrs available + * @NL80211_ATTR_MAX: highest attribute number currently defined + * @__NL80211_ATTR_AFTER_LAST: internal use +@@ -2813,6 +2816,8 @@ enum nl80211_attrs { + + NL80211_ATTR_TWT_RESPONDER, + ++ NL80211_ATTR_WIPHY_ANTENNA_GAIN, ++ + /* add attributes here, update the policy in nl80211.c */ + + __NL80211_ATTR_AFTER_LAST, +--- a/net/mac80211/cfg.c ++++ b/net/mac80211/cfg.c +@@ -2584,6 +2584,19 @@ static int ieee80211_get_tx_power(struct + return 0; + } + ++static int ieee80211_set_antenna_gain(struct wiphy *wiphy, int dbi) ++{ ++ struct ieee80211_local *local = wiphy_priv(wiphy); ++ ++ if (dbi < 0) ++ return -EINVAL; ++ ++ local->user_antenna_gain = dbi; ++ ieee80211_hw_config(local, 0); ++ ++ return 0; ++} ++ + static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev, + const u8 *addr) + { +@@ -3997,6 +4010,7 @@ const struct cfg80211_ops mac80211_confi + .set_wiphy_params = ieee80211_set_wiphy_params, + .set_tx_power = ieee80211_set_tx_power, + .get_tx_power = ieee80211_get_tx_power, ++ .set_antenna_gain = ieee80211_set_antenna_gain, + .set_wds_peer = ieee80211_set_wds_peer, + .rfkill_poll = ieee80211_rfkill_poll, + CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) +--- a/net/mac80211/ieee80211_i.h ++++ b/net/mac80211/ieee80211_i.h +@@ -1372,6 +1372,7 @@ struct ieee80211_local { + int dynamic_ps_forced_timeout; + + int user_power_level; /* in dBm, for all interfaces */ ++ int user_antenna_gain; /* in dBi */ + + enum ieee80211_smps_mode smps_mode; + +--- a/net/mac80211/main.c ++++ b/net/mac80211/main.c +@@ -93,7 +93,7 @@ static u32 ieee80211_hw_conf_chan(struct + struct ieee80211_sub_if_data *sdata; + struct cfg80211_chan_def chandef = {}; + u32 changed = 0; +- int power; ++ int power, max_power; + u32 offchannel_flag; + + offchannel_flag = local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL; +@@ -150,6 +150,12 @@ static u32 ieee80211_hw_conf_chan(struct + } + rcu_read_unlock(); + ++ max_power = chandef.chan->max_reg_power; ++ if (local->user_antenna_gain > 0) { ++ max_power -= local->user_antenna_gain; ++ power = min(power, max_power); ++ } ++ + if (local->hw.conf.power_level != power) { + changed |= IEEE80211_CONF_CHANGE_POWER; + local->hw.conf.power_level = power; +@@ -639,6 +645,7 @@ struct ieee80211_hw *ieee80211_alloc_hw_ + IEEE80211_RADIOTAP_MCS_HAVE_BW; + local->hw.radiotap_vht_details = IEEE80211_RADIOTAP_VHT_KNOWN_GI | + IEEE80211_RADIOTAP_VHT_KNOWN_BANDWIDTH; ++ local->user_antenna_gain = 0; + local->hw.uapsd_queues = IEEE80211_DEFAULT_UAPSD_QUEUES; + local->hw.uapsd_max_sp_len = IEEE80211_DEFAULT_MAX_SP_LEN; + local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; +--- a/net/wireless/nl80211.c ++++ b/net/wireless/nl80211.c +@@ -574,6 +574,7 @@ const struct nla_policy nl80211_policy[N + [NL80211_ATTR_SAE_PASSWORD] = { .type = NLA_BINARY, + .len = SAE_PASSWORD_MAX_LEN }, + [NL80211_ATTR_TWT_RESPONDER] = { .type = NLA_FLAG }, ++ [NL80211_ATTR_WIPHY_ANTENNA_GAIN] = { .type = NLA_U32 }, + }; + + /* policy for the key attributes */ +@@ -2869,6 +2870,20 @@ static int nl80211_set_wiphy(struct sk_b + if (result) + return result; + } ++ ++ if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_GAIN]) { ++ int idx, dbi = 0; ++ ++ if (!rdev->ops->set_antenna_gain) ++ return -EOPNOTSUPP; ++ ++ idx = NL80211_ATTR_WIPHY_ANTENNA_GAIN; ++ dbi = nla_get_u32(info->attrs[idx]); ++ ++ result = rdev->ops->set_antenna_gain(&rdev->wiphy, dbi); ++ if (result) ++ return result; ++ } + + if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] && + info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) { diff --git a/package/kernel/mac80211/patches/subsys/522-mac80211_configure_antenna_gain.patch b/package/kernel/mac80211/patches/subsys/522-mac80211_configure_antenna_gain.patch deleted file mode 100644 index 3ca34b7ec3..0000000000 --- a/package/kernel/mac80211/patches/subsys/522-mac80211_configure_antenna_gain.patch +++ /dev/null @@ -1,160 +0,0 @@ ---- a/include/net/cfg80211.h -+++ b/include/net/cfg80211.h -@@ -3344,6 +3344,7 @@ struct cfg80211_update_owe_info { - * (as advertised by the nl80211 feature flag.) - * @get_tx_power: store the current TX power into the dbm variable; - * return 0 if successful -+ * @set_antenna_gain: set antenna gain to reduce maximum tx power if necessary - * - * @set_wds_peer: set the WDS peer for a WDS interface - * -@@ -3656,6 +3657,7 @@ struct cfg80211_ops { - enum nl80211_tx_power_setting type, int mbm); - int (*get_tx_power)(struct wiphy *wiphy, struct wireless_dev *wdev, - int *dbm); -+ int (*set_antenna_gain)(struct wiphy *wiphy, int dbi); - - int (*set_wds_peer)(struct wiphy *wiphy, struct net_device *dev, - const u8 *addr); ---- a/include/net/mac80211.h -+++ b/include/net/mac80211.h -@@ -1476,6 +1476,7 @@ enum ieee80211_smps_mode { - * - * @power_level: requested transmit power (in dBm), backward compatibility - * value only that is set to the minimum of all interfaces -+ * @max_antenna_gain: maximum antenna gain adjusted by user config (in dBi) - * - * @chandef: the channel definition to tune to - * @radar_enabled: whether radar detection is enabled -@@ -1496,6 +1497,7 @@ enum ieee80211_smps_mode { - struct ieee80211_conf { - u32 flags; - int power_level, dynamic_ps_timeout; -+ int max_antenna_gain; - - u16 listen_interval; - u8 ps_dtim_period; ---- a/include/uapi/linux/nl80211.h -+++ b/include/uapi/linux/nl80211.h -@@ -2356,6 +2356,9 @@ enum nl80211_commands { - * - * @NL80211_ATTR_TWT_RESPONDER: Enable target wait time responder support. - * -+ * @NL80211_ATTR_WIPHY_ANTENNA_GAIN: Configured antenna gain. Used to reduce -+ * transmit power to stay within regulatory limits. u32, dBi. -+ * - * @NUM_NL80211_ATTR: total number of nl80211_attrs available - * @NL80211_ATTR_MAX: highest attribute number currently defined - * @__NL80211_ATTR_AFTER_LAST: internal use -@@ -2813,6 +2816,8 @@ enum nl80211_attrs { - - NL80211_ATTR_TWT_RESPONDER, - -+ NL80211_ATTR_WIPHY_ANTENNA_GAIN, -+ - /* add attributes here, update the policy in nl80211.c */ - - __NL80211_ATTR_AFTER_LAST, ---- a/net/mac80211/cfg.c -+++ b/net/mac80211/cfg.c -@@ -2584,6 +2584,19 @@ static int ieee80211_get_tx_power(struct - return 0; - } - -+static int ieee80211_set_antenna_gain(struct wiphy *wiphy, int dbi) -+{ -+ struct ieee80211_local *local = wiphy_priv(wiphy); -+ -+ if (dbi < 0) -+ return -EINVAL; -+ -+ local->user_antenna_gain = dbi; -+ ieee80211_hw_config(local, 0); -+ -+ return 0; -+} -+ - static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev, - const u8 *addr) - { -@@ -3997,6 +4010,7 @@ const struct cfg80211_ops mac80211_confi - .set_wiphy_params = ieee80211_set_wiphy_params, - .set_tx_power = ieee80211_set_tx_power, - .get_tx_power = ieee80211_get_tx_power, -+ .set_antenna_gain = ieee80211_set_antenna_gain, - .set_wds_peer = ieee80211_set_wds_peer, - .rfkill_poll = ieee80211_rfkill_poll, - CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) ---- a/net/mac80211/ieee80211_i.h -+++ b/net/mac80211/ieee80211_i.h -@@ -1372,6 +1372,7 @@ struct ieee80211_local { - int dynamic_ps_forced_timeout; - - int user_power_level; /* in dBm, for all interfaces */ -+ int user_antenna_gain; /* in dBi */ - - enum ieee80211_smps_mode smps_mode; - ---- a/net/mac80211/main.c -+++ b/net/mac80211/main.c -@@ -93,7 +93,7 @@ static u32 ieee80211_hw_conf_chan(struct - struct ieee80211_sub_if_data *sdata; - struct cfg80211_chan_def chandef = {}; - u32 changed = 0; -- int power; -+ int power, max_power; - u32 offchannel_flag; - - offchannel_flag = local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL; -@@ -150,6 +150,12 @@ static u32 ieee80211_hw_conf_chan(struct - } - rcu_read_unlock(); - -+ max_power = chandef.chan->max_reg_power; -+ if (local->user_antenna_gain > 0) { -+ max_power -= local->user_antenna_gain; -+ power = min(power, max_power); -+ } -+ - if (local->hw.conf.power_level != power) { - changed |= IEEE80211_CONF_CHANGE_POWER; - local->hw.conf.power_level = power; -@@ -639,6 +645,7 @@ struct ieee80211_hw *ieee80211_alloc_hw_ - IEEE80211_RADIOTAP_MCS_HAVE_BW; - local->hw.radiotap_vht_details = IEEE80211_RADIOTAP_VHT_KNOWN_GI | - IEEE80211_RADIOTAP_VHT_KNOWN_BANDWIDTH; -+ local->user_antenna_gain = 0; - local->hw.uapsd_queues = IEEE80211_DEFAULT_UAPSD_QUEUES; - local->hw.uapsd_max_sp_len = IEEE80211_DEFAULT_MAX_SP_LEN; - local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; ---- a/net/wireless/nl80211.c -+++ b/net/wireless/nl80211.c -@@ -574,6 +574,7 @@ const struct nla_policy nl80211_policy[N - [NL80211_ATTR_SAE_PASSWORD] = { .type = NLA_BINARY, - .len = SAE_PASSWORD_MAX_LEN }, - [NL80211_ATTR_TWT_RESPONDER] = { .type = NLA_FLAG }, -+ [NL80211_ATTR_WIPHY_ANTENNA_GAIN] = { .type = NLA_U32 }, - }; - - /* policy for the key attributes */ -@@ -2869,6 +2870,20 @@ static int nl80211_set_wiphy(struct sk_b - if (result) - return result; - } -+ -+ if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_GAIN]) { -+ int idx, dbi = 0; -+ -+ if (!rdev->ops->set_antenna_gain) -+ return -EOPNOTSUPP; -+ -+ idx = NL80211_ATTR_WIPHY_ANTENNA_GAIN; -+ dbi = nla_get_u32(info->attrs[idx]); -+ -+ result = rdev->ops->set_antenna_gain(&rdev->wiphy, dbi); -+ if (result) -+ return result; -+ } - - if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] && - info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {