Split __ieee80211_beacon_get() into a separate function for AP mode
ieee80211_beacon_get_ap().
Also, move the code common to all modes (AP, adhoc and mesh) to
a separate function ieee80211_beacon_get_finish().

Signed-off-by: Aloka Dixit <redacted>
---
v13:New addition to the patch series compared to v12.
This change is added in a separate patch for better readability.

 net/mac80211/tx.c | 203 +++++++++++++++++++++++++++-------------------
 1 file changed, 118 insertions(+), 85 deletions(-)

diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 2d1193ed3eb5..ac9ab007dc6f 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c

@@ -4979,6 +4979,115 @@ static int ieee80211_beacon_protect(struct 

sk_buff *skb,
 	return 0;
 }

+static void
+ieee80211_beacon_get_finish(struct ieee80211_hw *hw,
+			    struct ieee80211_vif *vif,
+			    struct ieee80211_mutable_offsets *offs,
+			    struct beacon_data *beacon,
+			    struct sk_buff *skb,
+			    struct ieee80211_chanctx_conf *chanctx_conf,
+			    u16 csa_off_base)
+{
+	struct ieee80211_local *local = hw_to_local(hw);
+	struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
+	struct ieee80211_tx_info *info;
+	enum nl80211_band band;
+	struct ieee80211_tx_rate_control txrc;
+
+	/* CSA offsets */
+	if (offs && beacon) {
+		u16 i;
+
+		for (i = 0; i < IEEE80211_MAX_CNTDWN_COUNTERS_NUM; i++) {
+			u16 csa_off = beacon->cntdwn_counter_offsets[i];
+
+			if (!csa_off)
+				continue;
+
+			offs->cntdwn_counter_offs[i] = csa_off_base + csa_off;
+		}
+	}
+