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 2348FC2BB3F for ; Wed, 15 Nov 2023 19:52:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235491AbjKOTwq (ORCPT ); Wed, 15 Nov 2023 14:52:46 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38152 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235487AbjKOTwq (ORCPT ); Wed, 15 Nov 2023 14:52:46 -0500 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2BECC12C for ; Wed, 15 Nov 2023 11:52:43 -0800 (PST) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9E2D6C433C8; Wed, 15 Nov 2023 19:52:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1700077962; bh=mg9PMuLRuZCRnS9+MTjVfynGuQVmH+keqTYAQd7wQ6c=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ngyaRcq0GlODEkG+TxqtYacPZ7BEDEU0zibJYRHliRu/rg24ndQs4VNV33t64C4SC 3pRFrgOvAhbbfiElp906QlAbayfXzf9LtdSmdtUw+hJgzhOGx9FpzMZczzhRVxcY9z 73mFWJzCfHvhbenQwpgrNtaeoQkEvKsHY2EM3jXs= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Emmanuel Grumbach , Johannes Berg , Sasha Levin Subject: [PATCH 6.1 024/379] wifi: mac80211: move sched-scan stop work to wiphy work Date: Wed, 15 Nov 2023 14:21:39 -0500 Message-ID: <20231115192646.588574247@linuxfoundation.org> X-Mailer: git-send-email 2.42.1 In-Reply-To: <20231115192645.143643130@linuxfoundation.org> References: <20231115192645.143643130@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 6.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Johannes Berg [ Upstream commit eadfb54756aea5610d8d0a467f66305f777c85dd ] This also has the wiphy locked here then. We need to use the _locked version of cfg80211_sched_scan_stopped() now, which also fixes an old deadlock there. Fixes: a05829a7222e ("cfg80211: avoid holding the RTNL when calling the driver") Reviewed-by: Emmanuel Grumbach Signed-off-by: Johannes Berg Signed-off-by: Sasha Levin --- net/mac80211/ieee80211_i.h | 5 +++-- net/mac80211/main.c | 6 +++--- net/mac80211/scan.c | 7 ++++--- 3 files changed, 10 insertions(+), 8 deletions(-) diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 2bf63908a35e9..d5dd2d9e89b48 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -1438,7 +1438,7 @@ struct ieee80211_local { int hw_scan_ies_bufsize; struct cfg80211_scan_info scan_info; - struct work_struct sched_scan_stopped_work; + struct wiphy_work sched_scan_stopped_work; struct ieee80211_sub_if_data __rcu *sched_scan_sdata; struct cfg80211_sched_scan_request __rcu *sched_scan_req; u8 scan_addr[ETH_ALEN]; @@ -1892,7 +1892,8 @@ int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata, struct cfg80211_sched_scan_request *req); int ieee80211_request_sched_scan_stop(struct ieee80211_local *local); void ieee80211_sched_scan_end(struct ieee80211_local *local); -void ieee80211_sched_scan_stopped_work(struct work_struct *work); +void ieee80211_sched_scan_stopped_work(struct wiphy *wiphy, + struct wiphy_work *work); /* off-channel/mgmt-tx */ void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local); diff --git a/net/mac80211/main.c b/net/mac80211/main.c index 71c1b4603623e..6faba47b7b0ea 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -820,8 +820,8 @@ struct ieee80211_hw *ieee80211_alloc_hw_nm(size_t priv_data_len, ieee80211_dynamic_ps_disable_work); timer_setup(&local->dynamic_ps_timer, ieee80211_dynamic_ps_timer, 0); - INIT_WORK(&local->sched_scan_stopped_work, - ieee80211_sched_scan_stopped_work); + wiphy_work_init(&local->sched_scan_stopped_work, + ieee80211_sched_scan_stopped_work); spin_lock_init(&local->ack_status_lock); idr_init(&local->ack_status_frames); @@ -1470,13 +1470,13 @@ void ieee80211_unregister_hw(struct ieee80211_hw *hw) wiphy_lock(local->hw.wiphy); wiphy_delayed_work_cancel(local->hw.wiphy, &local->roc_work); + wiphy_work_cancel(local->hw.wiphy, &local->sched_scan_stopped_work); wiphy_work_cancel(local->hw.wiphy, &local->radar_detected_work); wiphy_unlock(local->hw.wiphy); rtnl_unlock(); cancel_work_sync(&local->restart_work); cancel_work_sync(&local->reconfig_filter); - flush_work(&local->sched_scan_stopped_work); ieee80211_clear_tx_pending(local); rate_control_deinitialize(local); diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c index 445b789e0e9bf..c37e2576f1c13 100644 --- a/net/mac80211/scan.c +++ b/net/mac80211/scan.c @@ -1439,10 +1439,11 @@ void ieee80211_sched_scan_end(struct ieee80211_local *local) mutex_unlock(&local->mtx); - cfg80211_sched_scan_stopped(local->hw.wiphy, 0); + cfg80211_sched_scan_stopped_locked(local->hw.wiphy, 0); } -void ieee80211_sched_scan_stopped_work(struct work_struct *work) +void ieee80211_sched_scan_stopped_work(struct wiphy *wiphy, + struct wiphy_work *work) { struct ieee80211_local *local = container_of(work, struct ieee80211_local, @@ -1465,6 +1466,6 @@ void ieee80211_sched_scan_stopped(struct ieee80211_hw *hw) if (local->in_reconfig) return; - schedule_work(&local->sched_scan_stopped_work); + wiphy_work_queue(hw->wiphy, &local->sched_scan_stopped_work); } EXPORT_SYMBOL(ieee80211_sched_scan_stopped); -- 2.42.0