From: Johannes Berg <johannes.berg@intel.com>
Date: Wed, 31 Jan 2024 08:24:36 +0000 (+0200)
Subject: wifi: iwlwifi: mvm: check AP supports EMLSR
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=760cfa5bbd3bdd5ca2b36ca447d69788651ab17b;p=linux.git

wifi: iwlwifi: mvm: check AP supports EMLSR

Before using EMLSR check the AP actually advertises
support for it, otherwise reject the link activation.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240131091413.edaac352488d.Ic3533afc6848591e8977391ae39c144d5e794d26@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mld-mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mld-mac80211.c
index 5bac39b75e6c1..d3c6eb83cd73a 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mld-mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mld-mac80211.c
@@ -1280,6 +1280,9 @@ static bool iwl_mvm_can_enter_esr(struct iwl_mvm *mvm,
 	if (primary_link < 0)
 		return false;
 
+	if (!(vif->cfg.eml_cap & IEEE80211_EML_CAP_EMLSR_SUPP))
+		return false;
+
 	for_each_set_bit(link_id, &desired_links, IEEE80211_MLD_MAX_NUM_LINKS) {
 		struct ieee80211_bss_conf *link_conf =
 			link_conf_dereference_protected(vif, link_id);