From dcf3c8fb32ddbfa3b8227db38aa6746405bd4527 Mon Sep 17 00:00:00 2001
From: Shay Bar <shay.bar@celeno.com>
Date: Tue, 22 Dec 2020 08:47:14 +0200
Subject: [PATCH] mac80211: 160MHz with extended NSS BW in CSA
Git-commit: dcf3c8fb32ddbfa3b8227db38aa6746405bd4527
Patch-mainline: v5.11-rc6
References: git-fixes

Upon receiving CSA with 160MHz extended NSS BW from associated AP,
STA should set the HT operation_mode based on new_center_freq_seg1
because it is later used as ccfs2 in ieee80211_chandef_vht_oper().

Signed-off-by: Aviad Brikman <aviad.brikman@celeno.com>
Signed-off-by: Shay Bar <shay.bar@celeno.com>
Link: https://lore.kernel.org/r/20201222064714.24888-1-shay.bar@celeno.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 net/mac80211/spectmgmt.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/net/mac80211/spectmgmt.c b/net/mac80211/spectmgmt.c
index ae1cb2c68722..76747bfdaddd 100644
--- a/net/mac80211/spectmgmt.c
+++ b/net/mac80211/spectmgmt.c
@@ -133,16 +133,20 @@ int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
 	}
 
 	if (wide_bw_chansw_ie) {
+		u8 new_seg1 = wide_bw_chansw_ie->new_center_freq_seg1;
 		struct ieee80211_vht_operation vht_oper = {
 			.chan_width =
 				wide_bw_chansw_ie->new_channel_width,
 			.center_freq_seg0_idx =
 				wide_bw_chansw_ie->new_center_freq_seg0,
-			.center_freq_seg1_idx =
-				wide_bw_chansw_ie->new_center_freq_seg1,
+			.center_freq_seg1_idx = new_seg1,
 			/* .basic_mcs_set doesn't matter */
 		};
-		struct ieee80211_ht_operation ht_oper = {};
+		struct ieee80211_ht_operation ht_oper = {
+			.operation_mode =
+				cpu_to_le16(new_seg1 <<
+					    IEEE80211_HT_OP_MODE_CCFS2_SHIFT),
+		};
 
 		/* default, for the case of IEEE80211_VHT_CHANWIDTH_USE_HT,
 		 * to the previously parsed chandef
-- 
2.26.2