wifi: mac80211: fragment per STA profile correctly

When fragmenting the ML per STA profile, the element ID should be
IEEE80211_MLE_SUBELEM_PER_STA_PROFILE rather than WLAN_EID_FRAGMENT.

Change the helper function to take the to be used element ID and pass
the appropriate value for each of the fragmentation levels.

Fixes: 81151ce ("wifi: mac80211: support MLO authentication/association with one link")
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230611121219.9b5c793d904b.I7dad952bea8e555e2f3139fbd415d0cd2b3a08c3@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

Author: benzea

net/mac80211/ieee80211_i.h

@@ -2312,7 +2312,7 @@ ieee802_11_parse_elems(const u8 *start, size_t len, bool action,
 	return ieee802_11_parse_elems_crc(start, len, action, 0, 0, bss);
 }
 
-void ieee80211_fragment_element(struct sk_buff *skb, u8 *len_pos);
+void ieee80211_fragment_element(struct sk_buff *skb, u8 *len_pos, u8 frag_id);
 
 extern const int ieee802_1d_to_ac[8];
 

net/mac80211/mlme.c

@@ -1372,10 +1372,11 @@ static void ieee80211_assoc_add_ml_elem(struct ieee80211_sub_if_data *sdata,
 		ieee80211_add_non_inheritance_elem(skb, outer_present_elems,
 						   link_present_elems);
 
-		ieee80211_fragment_element(skb, subelem_len);
+		ieee80211_fragment_element(skb, subelem_len,
+					   IEEE80211_MLE_SUBELEM_FRAGMENT);
 	}
 
-	ieee80211_fragment_element(skb, ml_elem_len);
+	ieee80211_fragment_element(skb, ml_elem_len, WLAN_EID_FRAGMENT);
 }
 
 static int ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)

net/mac80211/util.c

@@ -5049,7 +5049,7 @@ u8 *ieee80211_ie_build_eht_cap(u8 *pos,
 	return pos;
 }
 
-void ieee80211_fragment_element(struct sk_buff *skb, u8 *len_pos)
+void ieee80211_fragment_element(struct sk_buff *skb, u8 *len_pos, u8 frag_id)
 {
 	unsigned int elem_len;
 
@@ -5069,7 +5069,7 @@ void ieee80211_fragment_element(struct sk_buff *skb, u8 *len_pos)
 		memmove(len_pos + 255 + 3, len_pos + 255 + 1, elem_len);
 		/* place the fragment ID */
 		len_pos += 255 + 1;
-		*len_pos = WLAN_EID_FRAGMENT;
+		*len_pos = frag_id;
 		/* and point to fragment length to update later */
 		len_pos++;
 	}