Merge tag 'mac80211-next-for-net-next-2021-10-21' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

Johannes Berg says:

====================
Quite a few changes:
 * the applicable eth_hw_addr_set() and const hw_addr changes
 * various code cleanups/refactorings
 * stack usage reductions across the wireless stack
 * some unstructured find_ie() -> structured find_element()
   changes
 * a few more pieces of multi-BSSID support
 * some 6 GHz regulatory support
 * 6 GHz support in hwsim, for testing userspace code
 * Light Communications (LC, 802.11bb) early band definitions
   to be able to add a first driver soon

* tag 'mac80211-next-for-net-next-2021-10-21' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next: (35 commits)
  cfg80211: fix kernel-doc for MBSSID EMA
  mac80211: Prevent AP probing during suspend
  nl80211: Add LC placeholder band definition to nl80211_band
  ...
====================

Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>

1 files changed, 28 insertions, 12 deletions

diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 49cb96d25169..39fa2a50385d 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -1112,10 +1112,6 @@ _ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action,
 			} else
 				elem_parse_failed = true;
 			break;
-		case WLAN_EID_CHALLENGE:
-			elems->challenge = pos;
-			elems->challenge_len = elen;
-			break;
 		case WLAN_EID_VENDOR_SPECIFIC:
 			if (elen >= 4 && pos[0] == 0x00 && pos[1] == 0x50 &&
 			    pos[2] == 0xf2) {
@@ -1395,8 +1391,8 @@ _ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action,
 
 static size_t ieee802_11_find_bssid_profile(const u8 *start, size_t len,
 					    struct ieee802_11_elems *elems,
-					    u8 *transmitter_bssid,
-					    u8 *bss_bssid,
+					    const u8 *transmitter_bssid,
+					    const u8 *bss_bssid,
 					    u8 *nontransmitted_profile)
 {
 	const struct element *elem, *sub;
@@ -1461,16 +1457,20 @@ static size_t ieee802_11_find_bssid_profile(const u8 *start, size_t len,
 	return found ? profile_len : 0;
 }
 
-u32 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action,
-			       struct ieee802_11_elems *elems,
-			       u64 filter, u32 crc, u8 *transmitter_bssid,
-			       u8 *bss_bssid)
+struct ieee802_11_elems *ieee802_11_parse_elems_crc(const u8 *start, size_t len,
+						    bool action, u64 filter,
+						    u32 crc,
+						    const u8 *transmitter_bssid,
+						    const u8 *bss_bssid)
 {
+	struct ieee802_11_elems *elems;
 	const struct element *non_inherit = NULL;
 	u8 *nontransmitted_profile;
 	int nontransmitted_profile_len = 0;
 
-	memset(elems, 0, sizeof(*elems));
+	elems = kzalloc(sizeof(*elems), GFP_ATOMIC);
+	if (!elems)
+		return NULL;
 	elems->ie_start = start;
 	elems->total_len = len;
 
@@ -1516,7 +1516,9 @@ u32 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action,
 
 	kfree(nontransmitted_profile);
 
-	return crc;
+	elems->crc = crc;
+
+	return elems;
 }
 
 void ieee80211_regulatory_limit_wmm_params(struct ieee80211_sub_if_data *sdata,
@@ -3383,6 +3385,7 @@ bool ieee80211_chandef_he_6ghz_oper(struct ieee80211_sub_if_data *sdata,
 	const struct ieee80211_sta_he_cap *he_cap;
 	struct cfg80211_chan_def he_chandef = *chandef;
 	const struct ieee80211_he_6ghz_oper *he_6ghz_oper;
+	struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf;
 	bool support_80_80, support_160;
 	u8 he_phy_cap;
 	u32 freq;
@@ -3427,6 +3430,19 @@ bool ieee80211_chandef_he_6ghz_oper(struct ieee80211_sub_if_data *sdata,
 	he_chandef.chan = ieee80211_get_channel(sdata->local->hw.wiphy, freq);
 
 	switch (u8_get_bits(he_6ghz_oper->control,
+			    IEEE80211_HE_6GHZ_OPER_CTRL_REG_INFO)) {
+	case IEEE80211_6GHZ_CTRL_REG_LPI_AP:
+		bss_conf->power_type = IEEE80211_REG_LPI_AP;
+		break;
+	case IEEE80211_6GHZ_CTRL_REG_SP_AP:
+		bss_conf->power_type = IEEE80211_REG_SP_AP;
+		break;
+	default:
+		bss_conf->power_type = IEEE80211_REG_UNSET_AP;
+		break;
+	}
+
+	switch (u8_get_bits(he_6ghz_oper->control,
 			    IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH)) {
 	case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_20MHZ:
 		he_chandef.width = NL80211_CHAN_WIDTH_20;