[PATCH] mac80211: notify non-transmitting BSS of color changes
From: Rameshkumar Sundaram <hidden>
Date: 2021-11-17 10:57:40
Subsystem:
mac80211, the rest · Maintainers:
Johannes Berg, Linus Torvalds
From: John Crispin <john@phrozen.org> When color change is triggered in multiple bssid case, allow only for transmitting BSS, and when it changes its bss color, notify the non transmitting BSSs also of the new bss color. Signed-off-by: John Crispin <john@phrozen.org> Co-developed-by: Lavanya Suresh <redacted> Signed-off-by: Lavanya Suresh <redacted> Co-developed-by: Rameshkumar Sundaram <redacted> Signed-off-by: Rameshkumar Sundaram <redacted> --- net/mac80211/cfg.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+)
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index e2b791c..f36f249 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c@@ -4264,6 +4264,21 @@ ieee80211_color_change_bss_config_notify(struct ieee80211_sub_if_data *sdata, changed |= BSS_CHANGED_HE_BSS_COLOR; ieee80211_bss_info_change_notify(sdata, changed); + + if (!sdata->vif.bss_conf.nontransmitted && sdata->vif.mbssid_tx_vif) { + struct ieee80211_sub_if_data *child; + + mutex_lock(&sdata->local->iflist_mtx); + list_for_each_entry(child, &sdata->local->interfaces, list) { + if (child != sdata && child->vif.mbssid_tx_vif == &sdata->vif) { + child->vif.bss_conf.he_bss_color.color = color; + child->vif.bss_conf.he_bss_color.enabled = enable; + ieee80211_bss_info_change_notify(child, + BSS_CHANGED_HE_BSS_COLOR); + } + } + mutex_unlock(&sdata->local->iflist_mtx); + } } static int ieee80211_color_change_finalize(struct ieee80211_sub_if_data *sdata)
@@ -4348,6 +4363,9 @@ ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev, sdata_assert_lock(sdata); + if (sdata->vif.bss_conf.nontransmitted) + return -EINVAL; + mutex_lock(&local->mtx); /* don't allow another color change if one is already active or if csa
--
2.7.4