Received-SPF: pass (google.com: domain of linux-wireless-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
From:   Johannes Berg <johannes@sipsolutions.net>
To:     linux-wireless@vger.kernel.org
Cc:     Shaul Triebitz <shaul.triebitz@intel.com>
Subject: [PATCH 07/76] wifi: mac80211: add an ieee80211_get_link_sband
Date:   Wed, 13 Jul 2022 11:43:53 +0200
Message-Id: <20220713114425.643de96a8383.I7e6296e1c8b4d4fe9909056621940c5e02e76eea@changeid>
In-Reply-To: <20220713094502.163926-1-johannes@sipsolutions.net>
References: <20220713094502.163926-1-johannes@sipsolutions.net>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

From: Shaul Triebitz <shaul.triebitz@intel.com>

Similar to ieee80211_get_sband but get the sband of the link_conf.

Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/mac80211/ieee80211_i.h | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 18bab27eda4f..a0023ad7ca1c 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -1543,6 +1543,28 @@ ieee80211_get_sband(struct ieee80211_sub_if_data *sdata)
 	return local->hw.wiphy->bands[band];
 }
 
+static inline struct ieee80211_supported_band *
+ieee80211_get_link_sband(struct ieee80211_sub_if_data *sdata, u32 link_id)
+{
+	struct ieee80211_local *local = sdata->local;
+	struct ieee80211_chanctx_conf *chanctx_conf;
+	enum nl80211_band band;
+
+	rcu_read_lock();
+	chanctx_conf =
+		rcu_dereference(sdata->vif.link_conf[link_id]->chanctx_conf);
+
+	if (!chanctx_conf) {
+		rcu_read_unlock();
+		return NULL;
+	}
+
+	band = chanctx_conf->def.chan->band;
+	rcu_read_unlock();
+
+	return local->hw.wiphy->bands[band];
+}
+
 /* this struct holds the value parsing from channel switch IE  */
 struct ieee80211_csa_ie {
 	struct cfg80211_chan_def chandef;
-- 
2.36.1