From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0CC6CC072A2 for ; Wed, 15 Nov 2023 19:40:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234809AbjKOTkX (ORCPT ); Wed, 15 Nov 2023 14:40:23 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50300 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234836AbjKOTkS (ORCPT ); Wed, 15 Nov 2023 14:40:18 -0500 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5FBCA1AB for ; Wed, 15 Nov 2023 11:40:13 -0800 (PST) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 13CE6C433D9; Wed, 15 Nov 2023 19:40:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1700077213; bh=AWtBayWPtioh5+KLCfWxyfU5yBoBR9ARLSKm/MHWtRA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=CyPoWI5s7YPvuUNpoBMKHQ6ZymQcBCCGUQNolv7cWWvNVGujSCRTraF+mEqX2z556 KHAmRNCO1iWxgZ7mu0+2UbNo/kJSpGiRqIzgyrtcAfVl37Qr1WMXRO7yLPbHFi/dIQ 4pqeg49749y82zEomOwazR0lOvwSLOvyWVhqzNNg= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Johannes Berg , Gregory Greenman , Sasha Levin Subject: [PATCH 6.6 141/603] wifi: iwlwifi: mvm: fix iwl_mvm_mac_flush_sta() Date: Wed, 15 Nov 2023 14:11:26 -0500 Message-ID: <20231115191622.948092786@linuxfoundation.org> X-Mailer: git-send-email 2.42.1 In-Reply-To: <20231115191613.097702445@linuxfoundation.org> References: <20231115191613.097702445@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Johannes Berg [ Upstream commit 43874283ce6c5bd32ac9d30878b2c96a974357cb ] When I implemented iwl_mvm_mac_flush_sta() I completely botched it; it basically always happens after the iwl_mvm_sta_pre_rcu_remove() call, and that already clears mvm->fw_id_to_mac_id[] entries, so we cannot rely on those at iwl_mvm_mac_flush_sta() time. This means it never did anything. Fix this by just going through the station IDs and now with the new API for iwl_mvm_flush_sta(), call those. Fixes: a6cc6ccb1c8a ("wifi: iwlwifi: mvm: support new flush_sta method") Signed-off-by: Johannes Berg Signed-off-by: Gregory Greenman Link: https://lore.kernel.org/r/20231011130030.0b5878e93118.I1093e60163052e7be64d2b01424097cd6a272979@changeid Signed-off-by: Johannes Berg Signed-off-by: Sasha Levin --- .../net/wireless/intel/iwlwifi/mvm/mac80211.c | 20 +++++++++---------- 1 file changed, 9 insertions(+), 11 deletions(-) diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c index e68026a657059..a25ea638229b0 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c @@ -5602,22 +5602,20 @@ void iwl_mvm_mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif, void iwl_mvm_mac_flush_sta(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_sta *sta) { + struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); - int i; + struct iwl_mvm_link_sta *mvm_link_sta; + struct ieee80211_link_sta *link_sta; + int link_id; mutex_lock(&mvm->mutex); - for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { - struct iwl_mvm_sta *mvmsta; - struct ieee80211_sta *tmp; - - tmp = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], - lockdep_is_held(&mvm->mutex)); - if (tmp != sta) + for_each_sta_active_link(vif, sta, link_sta, link_id) { + mvm_link_sta = rcu_dereference_protected(mvmsta->link[link_id], + lockdep_is_held(&mvm->mutex)); + if (!mvm_link_sta) continue; - mvmsta = iwl_mvm_sta_from_mac80211(sta); - - if (iwl_mvm_flush_sta(mvm, mvmsta->deflink.sta_id, + if (iwl_mvm_flush_sta(mvm, mvm_link_sta->sta_id, mvmsta->tfd_queue_msk)) IWL_ERR(mvm, "flush request fail\n"); } -- 2.42.0