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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 8E307C3DA79 for ; Mon, 15 Jan 2024 10:14:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=atlEj+PzljHFeiNDOtXU/bwhsHPVfdma3zGILln3RrY=; b=chUYXNgiW9K+pa4TxLrm9fk0u4 aMRfN+LuJvM4tEbyTe+6V86infKkQ5voTMCVriHleK7l0nWFLZG8mKIK0U9sFu1+dylAFHuPyS/Wb MUKzPF8ot28BXA3d6FtZrJz7Fwi0+YfSEnFzDQy8SOZ7+Z77BUWC8b9vK1grtgW+KFV6e8dXNLfOL ANEoXTicjcQote0mWs62EPzXwWhlDLzLUwDpATjCQBpL13/dKlhrwI2iOoYiV+rwm3jvNbbSzCWef wB8wTTcdc4YC+XpNZTeNUrHAzBYNMCZO4fN9BdqlnDUo8F40U4gs7/fnSLAa8NpLCviiAWlcksqXU aTZukpCg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1rPJyq-008Y9u-2a; Mon, 15 Jan 2024 10:14:08 +0000 Received: from s3.sipsolutions.net ([2a01:4f8:242:246e::2] helo=sipsolutions.net) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1rPJyn-008Y8I-0P for ath11k@lists.infradead.org; Mon, 15 Jan 2024 10:14:07 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sipsolutions.net; s=mail; h=Content-Transfer-Encoding:MIME-Version: Message-ID:Date:Subject:Cc:To:From:Content-Type:Sender:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-To:Resent-Cc: Resent-Message-ID:In-Reply-To:References; bh=atlEj+PzljHFeiNDOtXU/bwhsHPVfdma3zGILln3RrY=; t=1705313640; x=1706523240; b=Ac4ON8ic2gqpldlaVq3XbrCstOQepNzZezySLZpLLlkUCHxZdSKQuG42Gy3ts4pUEYWZpkiSao/ cSDBktCL7ZIUqvUWctuNmqCUGp8/riOKPy6n/Rwrr45I6XJed0uFUsT2MbDB+WfgbUQTVk/VC89yx JiU27w+5bgx6IDyZBM0qh1R+w2U4giMx8lWDXdxmhmckJFHBPN3FDgtuzm0U6iTD7cjX6OT/kKrAk ufCptRHxVvGHQlANnD6WS6EA7UqVrIhFVGox83sthzVsp2nOPREVSkNr4oi3RX0wxbFDau86DWwoa Gs4QtCZmJIuzrtV6SP9ipbbrGekZXDQpx5lA==; Received: by sipsolutions.net with esmtpsa (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.97) (envelope-from ) id 1rPJyf-00000003OTd-3KW5; Mon, 15 Jan 2024 11:13:58 +0100 From: benjamin@sipsolutions.net To: linux-wireless@vger.kernel.org Cc: ath11k@lists.infradead.org, Benjamin Berg Subject: [PATCH v2] wifi: ath11k: rely on mac80211 debugfs handling for vif Date: Mon, 15 Jan 2024 11:13:49 +0100 Message-ID: <20240115101349.1276608-1-benjamin@sipsolutions.net> X-Mailer: git-send-email 2.43.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240115_021405_161240_9991AF05 X-CRM114-Status: GOOD ( 16.22 ) X-BeenThere: ath11k@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "ath11k" Errors-To: ath11k-bounces+ath11k=archiver.kernel.org@lists.infradead.org From: Benjamin Berg mac80211 started to delete debugfs entries in certain cases, causing a ath11k to crash when it tried to delete the entries later. Fix this by relying on mac80211 to delete the entries when appropriate and adding them from the vif_add_debugfs handler. Fixes: 0a3d898ee9a8 ("wifi: mac80211: add/remove driver debugfs entries as appropriate") Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218364 Signed-off-by: Benjamin Berg --- v2: * Adjust commit message to say that this caused crashes * Fix function name to match mac80211 op --- drivers/net/wireless/ath/ath11k/core.h | 4 ---- drivers/net/wireless/ath/ath11k/debugfs.c | 25 +++++++++-------------- drivers/net/wireless/ath/ath11k/debugfs.h | 12 ++--------- drivers/net/wireless/ath/ath11k/mac.c | 12 +---------- 4 files changed, 13 insertions(+), 40 deletions(-) diff --git a/drivers/net/wireless/ath/ath11k/core.h b/drivers/net/wireless/ath/ath11k/core.h index 7e3b6779f4e9..02e160d831be 100644 --- a/drivers/net/wireless/ath/ath11k/core.h +++ b/drivers/net/wireless/ath/ath11k/core.h @@ -368,10 +368,6 @@ struct ath11k_vif { struct ieee80211_chanctx_conf chanctx; struct ath11k_arp_ns_offload arp_ns_offload; struct ath11k_rekey_data rekey_data; - -#ifdef CONFIG_ATH11K_DEBUGFS - struct dentry *debugfs_twt; -#endif /* CONFIG_ATH11K_DEBUGFS */ }; struct ath11k_vif_iter { diff --git a/drivers/net/wireless/ath/ath11k/debugfs.c b/drivers/net/wireless/ath/ath11k/debugfs.c index a847bc0d50c0..f53b712e169f 100644 --- a/drivers/net/wireless/ath/ath11k/debugfs.c +++ b/drivers/net/wireless/ath/ath11k/debugfs.c @@ -1894,35 +1894,30 @@ static const struct file_operations ath11k_fops_twt_resume_dialog = { .open = simple_open }; -void ath11k_debugfs_add_interface(struct ath11k_vif *arvif) +void ath11k_debugfs_op_vif_add_debugfs(struct ieee80211_hw *hw, + struct ieee80211_vif *vif) { + struct ath11k_vif *arvif = ath11k_vif_to_arvif(vif); struct ath11k_base *ab = arvif->ar->ab; + struct dentry *debugfs_twt; if (arvif->vif->type != NL80211_IFTYPE_AP && !(arvif->vif->type == NL80211_IFTYPE_STATION && test_bit(WMI_TLV_SERVICE_STA_TWT, ab->wmi_ab.svc_map))) return; - arvif->debugfs_twt = debugfs_create_dir("twt", - arvif->vif->debugfs_dir); - debugfs_create_file("add_dialog", 0200, arvif->debugfs_twt, + debugfs_twt = debugfs_create_dir("twt", + arvif->vif->debugfs_dir); + debugfs_create_file("add_dialog", 0200, debugfs_twt, arvif, &ath11k_fops_twt_add_dialog); - debugfs_create_file("del_dialog", 0200, arvif->debugfs_twt, + debugfs_create_file("del_dialog", 0200, debugfs_twt, arvif, &ath11k_fops_twt_del_dialog); - debugfs_create_file("pause_dialog", 0200, arvif->debugfs_twt, + debugfs_create_file("pause_dialog", 0200, debugfs_twt, arvif, &ath11k_fops_twt_pause_dialog); - debugfs_create_file("resume_dialog", 0200, arvif->debugfs_twt, + debugfs_create_file("resume_dialog", 0200, debugfs_twt, arvif, &ath11k_fops_twt_resume_dialog); } -void ath11k_debugfs_remove_interface(struct ath11k_vif *arvif) -{ - if (!arvif->debugfs_twt) - return; - - debugfs_remove_recursive(arvif->debugfs_twt); - arvif->debugfs_twt = NULL; -} diff --git a/drivers/net/wireless/ath/ath11k/debugfs.h b/drivers/net/wireless/ath/ath11k/debugfs.h index 44d15845f39a..d6e38988fecf 100644 --- a/drivers/net/wireless/ath/ath11k/debugfs.h +++ b/drivers/net/wireless/ath/ath11k/debugfs.h @@ -307,8 +307,8 @@ static inline int ath11k_debugfs_rx_filter(struct ath11k *ar) return ar->debug.rx_filter; } -void ath11k_debugfs_add_interface(struct ath11k_vif *arvif); -void ath11k_debugfs_remove_interface(struct ath11k_vif *arvif); +void ath11k_debugfs_op_vif_add_debugfs(struct ieee80211_hw *hw, + struct ieee80211_vif *vif); void ath11k_debugfs_add_dbring_entry(struct ath11k *ar, enum wmi_direct_buffer_module id, enum ath11k_dbg_dbr_event event, @@ -387,14 +387,6 @@ static inline int ath11k_debugfs_get_fw_stats(struct ath11k *ar, return 0; } -static inline void ath11k_debugfs_add_interface(struct ath11k_vif *arvif) -{ -} - -static inline void ath11k_debugfs_remove_interface(struct ath11k_vif *arvif) -{ -} - static inline void ath11k_debugfs_add_dbring_entry(struct ath11k *ar, enum wmi_direct_buffer_module id, diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c index db241589424d..b980680e0d9c 100644 --- a/drivers/net/wireless/ath/ath11k/mac.c +++ b/drivers/net/wireless/ath/ath11k/mac.c @@ -6756,13 +6756,6 @@ static int ath11k_mac_op_add_interface(struct ieee80211_hw *hw, goto err; } - /* In the case of hardware recovery, debugfs files are - * not deleted since ieee80211_ops.remove_interface() is - * not invoked. In such cases, try to delete the files. - * These will be re-created later. - */ - ath11k_debugfs_remove_interface(arvif); - memset(arvif, 0, sizeof(*arvif)); arvif->ar = ar; @@ -6939,8 +6932,6 @@ static int ath11k_mac_op_add_interface(struct ieee80211_hw *hw, ath11k_dp_vdev_tx_attach(ar, arvif); - ath11k_debugfs_add_interface(arvif); - if (vif->type != NL80211_IFTYPE_MONITOR && test_bit(ATH11K_FLAG_MONITOR_CONF_ENABLED, &ar->monitor_flags)) { ret = ath11k_mac_monitor_vdev_create(ar); @@ -7056,8 +7047,6 @@ static void ath11k_mac_op_remove_interface(struct ieee80211_hw *hw, /* Recalc txpower for remaining vdev */ ath11k_mac_txpower_recalc(ar); - ath11k_debugfs_remove_interface(arvif); - /* TODO: recal traffic pause state based on the available vdevs */ mutex_unlock(&ar->conf_mutex); @@ -9153,6 +9142,7 @@ static const struct ieee80211_ops ath11k_ops = { #endif #ifdef CONFIG_ATH11K_DEBUGFS + .vif_add_debugfs = ath11k_debugfs_op_vif_add_debugfs, .sta_add_debugfs = ath11k_debugfs_sta_op_add, #endif -- 2.43.0