From: Johannes Berg <johannes.berg@intel.com>
Date: Sun, 18 Jun 2023 18:50:02 +0000 (+0300)
Subject: wifi: mac80211: check EHT basic MCS/NSS set
X-Git-Url: https://jxself.org/git/?a=commitdiff_plain;ds=sidebyside;h=530e748f583fda67101791e5527c5b4324b47ed8;p=carl9170fw.git

wifi: mac80211: check EHT basic MCS/NSS set

Check that all the NSS in the EHT basic MCS/NSS set
are actually supported, otherwise disable EHT for the
connection.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230618214436.737827c906c9.I0c11a3cd46ab4dcb774c11a5bbc30aecfb6fce11@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
---

diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index 5fb8142..b685140 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -2014,12 +2014,18 @@ struct ieee80211_mu_edca_param_set {
  * @rx_tx_mcs13_max_nss: indicates the maximum number of spatial streams
  *     supported for reception and the maximum number of spatial streams
  *     supported for transmission for MCS 12 - 13.
+ * @rx_tx_max_nss: array of the previous fields for easier loop access
  */
 struct ieee80211_eht_mcs_nss_supp_20mhz_only {
-	u8 rx_tx_mcs7_max_nss;
-	u8 rx_tx_mcs9_max_nss;
-	u8 rx_tx_mcs11_max_nss;
-	u8 rx_tx_mcs13_max_nss;
+	union {
+		struct {
+			u8 rx_tx_mcs7_max_nss;
+			u8 rx_tx_mcs9_max_nss;
+			u8 rx_tx_mcs11_max_nss;
+			u8 rx_tx_mcs13_max_nss;
+		};
+		u8 rx_tx_max_nss[4];
+	};
 };
 
 /**
@@ -2039,11 +2045,17 @@ struct ieee80211_eht_mcs_nss_supp_20mhz_only {
  * @rx_tx_mcs13_max_nss: indicates the maximum number of spatial streams
  *     supported for reception and the maximum number of spatial streams
  *     supported for transmission for MCS 12 - 13.
+ * @rx_tx_max_nss: array of the previous fields for easier loop access
  */
 struct ieee80211_eht_mcs_nss_supp_bw {
-	u8 rx_tx_mcs9_max_nss;
-	u8 rx_tx_mcs11_max_nss;
-	u8 rx_tx_mcs13_max_nss;
+	union {
+		struct {
+			u8 rx_tx_mcs9_max_nss;
+			u8 rx_tx_mcs11_max_nss;
+			u8 rx_tx_mcs13_max_nss;
+		};
+		u8 rx_tx_max_nss[3];
+	};
 };
 
 /**
@@ -2096,7 +2108,7 @@ struct ieee80211_eht_cap_elem {
  */
 struct ieee80211_eht_operation {
 	u8 params;
-	__le32 basic_mcs_nss;
+	struct ieee80211_eht_mcs_nss_supp_20mhz_only basic_mcs_nss;
 	u8 optional[];
 } __packed;