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From:   gregory.greenman@intel.com
To:     johannes@sipsolutions.net
Cc:     linux-wireless@vger.kernel.org,
        Benjamin Berg <benjamin.berg@intel.com>,
        Gregory Greenman <gregory.greenman@intel.com>
Subject: [PATCH 10/14] wifi: iwlwifi: mvm: Return success if link could not be removed
Date:   Tue, 17 Oct 2023 12:16:45 +0300
Message-Id: <20231017115047.f89bc05aadf6.Idc8fbd671362d962c02b1df87fa6258733631580@changeid>
In-Reply-To: <20231017091649.65090-1-gregory.greenman@intel.com>
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From: Benjamin Berg <benjamin.berg@intel.com>

iwl_mvm_remove_link would return an error if the link could not be
removed. However, doing so prevents recovery if a link was not uploaded
to the FW in the first place and the link_info was not allocated or
fw_link_id is not set.

Returning success means that we can still try to continue with adding
new links in change_vif_links.

Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/mvm/link.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/link.c b/drivers/net/wireless/intel/iwlwifi/mvm/link.c
index c3831440a019..be48b0fc9cb6 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/link.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/link.c
@@ -242,9 +242,10 @@ int iwl_mvm_remove_link(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 	struct iwl_link_config_cmd cmd = {};
 	int ret;
 
+	/* mac80211 thought we have the link, but it was never configured */
 	if (WARN_ON(!link_info ||
 		    link_info->fw_link_id >= ARRAY_SIZE(mvm->link_id_to_link_conf)))
-		return -EINVAL;
+		return 0;
 
 	RCU_INIT_POINTER(mvm->link_id_to_link_conf[link_info->fw_link_id],
 			 NULL);
-- 
2.38.1