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 0B49EC433F5 for ; Wed, 16 Mar 2022 06:13:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344005AbiCPGOm (ORCPT ); Wed, 16 Mar 2022 02:14:42 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40668 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237256AbiCPGOk (ORCPT ); Wed, 16 Mar 2022 02:14:40 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9BCCA29C8F for ; Tue, 15 Mar 2022 23:13:24 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id EC17FB819DE for ; Wed, 16 Mar 2022 06:13:22 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4C6DCC340E9; Wed, 16 Mar 2022 06:13:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1647411201; bh=/gEn69FCXVyKJWnF/AyvAgLAHPy0NbgHxDfUNtsFnIQ=; h=From:To:Cc:Subject:References:Date:In-Reply-To:From; b=m5V+cOhV24K7n6z9Uby3kV4XgKuEC0JAkijn0tWdLK6Whpiy7P44RUhixsl41yxxi +wzoR9htC/YqjmIPy/Svons+dX5hlAMkIWjfJ52Qsk9IOO7GLC/biV6IkoLYXm09GY Bq5rtsHmX6IJXRxFRtE5xlBJs00jwRsmUkbrZhO0+CvF7dR5mLb8+h1MRYY0mXbdBo hShrCmMMQIv9DdEwbYS1VdveGqcJRtfJeb7BoHZkGE93UOCt+ek7HRINell3bY5gAP uV7rHWarck4O67wFKRAmWiGyZvAbhdsf6XB9ZXikUBSaveBKUC0aLkMmIuVaqrPyV4 KIPCQQOhuJAUQ== From: Kalle Valo To: Niels Dossche Cc: ath11k@lists.infradead.org, linux-wireless@vger.kernel.org, "David S. Miller" , Jakub Kicinski , Carl Huang Subject: Re: [PATCH] ath11k: acquire ab->base_lock in unassign when finding the peer by addr References: <20220314215253.92658-1-dossche.niels@gmail.com> Date: Wed, 16 Mar 2022 08:13:16 +0200 In-Reply-To: <20220314215253.92658-1-dossche.niels@gmail.com> (Niels Dossche's message of "Mon, 14 Mar 2022 22:52:53 +0100") Message-ID: <87o826pgqr.fsf@kernel.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Niels Dossche writes: > ath11k_peer_find_by_addr states via lockdep that ab->base_lock must be > held when calling that function in order to protect the list. All > callers except ath11k_mac_op_unassign_vif_chanctx have that lock > acquired when calling ath11k_peer_find_by_addr. That lock is also not > transitively held by a path towards ath11k_mac_op_unassign_vif_chanctx. > The solution is to acquire the lock when calling > ath11k_peer_find_by_addr inside ath11k_mac_op_unassign_vif_chanctx. > > Fixes: 701e48a43e15 ("ath11k: add packet log support for QCA6390") > Signed-off-by: Niels Dossche On what hardware and firmware version did you test this? -- https://patchwork.kernel.org/project/linux-wireless/list/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches