linux-kernel - [PATCH 6.7 227/713] wifi: iwlwifi: properly check if link is active

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Date: Sun, 24 Mar 2024 18:39:13 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Miri Korenblit <miriam.rachel.korenblit@...el.com>,
	Johannes Berg <johannes.berg@...el.com>,
	Sasha Levin <sashal@...nel.org>
Subject: [PATCH 6.7 227/713] wifi: iwlwifi: properly check if link is active

From: Miri Korenblit <miriam.rachel.korenblit@...el.com>

[ Upstream commit 556c7cd721b5262579ba1710c3b4e7ffdb5573ac ]

Before sending SESSION PROTECTION cmd the driver verifies that the
link for which the cmd is going to be sent is active.
The existing code is checking it only for MLD vifs,
but also the deflink (in non-MLD vifs) needs to be active in order
the have a session protection for it.
Fix this by checking if the link is active also for non-MLD vifs

Fixes: 135065837310 ("wifi: iwlwifi: support link_id in SESSION_PROTECTION cmd")
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@...el.com>
Reviewed-by: Johannes Berg <johannes.berg@...el.com>
Link: https://msgid.link/20240205211151.c61820f14ca6.Ibbe0f848f3e71f64313d21642650b6e4bfbe4b39@changeid
Signed-off-by: Johannes Berg <johannes.berg@...el.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/net/wireless/intel/iwlwifi/mvm/time-event.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/time-event.c b/drivers/net/wireless/intel/iwlwifi/mvm/time-event.c
index 98c64ae315e68..da00ef6e4fbcf 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/time-event.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/time-event.c
@@ -706,8 +706,7 @@ static int iwl_mvm_get_session_prot_id(struct iwl_mvm *mvm,
 		 "Invalid link ID for session protection: %u\n", link_id))
 		return -EINVAL;
 
-	if (WARN(ieee80211_vif_is_mld(vif) &&
-		 !(vif->active_links & BIT(link_id)),
+	if (WARN(!mvmvif->link[link_id]->active,
 		 "Session Protection on an inactive link: %u\n", link_id))
 		return -EINVAL;
 
-- 
2.43.0