Received: by 2002:a25:4158:0:0:0:0:0 with SMTP id o85csp5952575yba; Wed, 1 May 2019 03:14:31 -0700 (PDT) X-Google-Smtp-Source: APXvYqxBuhoPEutLK4i/1E1KttxIoXXMHSllZYYApUmoAKL29JssIREfSJdgRup7XBI49+PiL3oJ X-Received: by 2002:a63:dd10:: with SMTP id t16mr73392579pgg.446.1556705671211; Wed, 01 May 2019 03:14:31 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1556705671; cv=none; d=google.com; s=arc-20160816; b=ODlBu0Pe72EYt9fq6yXmhrewBFG2E3VmIaGrklA4XDOjr06koyEZyU+ceWID1D7ifc Tw02urXu48WgeDZmq06r5n8AxNQ0mR7tWfMiLqIDodxy/ot7Ef1UcKNivD5STqBCBJpZ a7UiQN9gQ/d72C4sH/C53MhXRocIiqQVjrouMs5BPMBu1HSZXyFAzwXg1A1Nz3OtVtNX i0Ctb6P1YzoNXSxCP7dlWEgzKeXZI0P3ixAjqyyk4RaYd5dyq4ahjpIMnYcpwp37qJOj JE5MHj5+AIXcyDl82XyjclSZc8oXcx4QqtnLyeTdeIvUcVYAvbpxBEHMI3i8vg//kXnx nubg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:mime-version:message-id:date:references :in-reply-to:subject:cc:to:from; bh=ioGPC5F7kySeobmuzWBh6iE9/oKQDUZgPGo93PVH0jQ=; b=LU4ze375xZDYrVKKXsrH4Pv32ET3xdstly682/9cLSgNlYzQHRtzB9dFjrYpaXWjC1 K7ceJIv92YWC6N8h8N6IM2kpBNZZUUiVrD0uItWFzeUG16z+YFFhGEPEG9vQgfR3ONOy ov5sNIWDF35mh5iF07XzDZ1GerAK6WpqULIfK86Q+HgqN9PezzDPxeSk8VPMP6UQ6gP1 B8dbDi+O8y5JNgUFRCfSw51J6G8QarnyetJES5trjTa017nb/KX0a6hAvv0DLZVCLzfx kpJKSSbQyaN1s4ixsFH5FoqYT7grpQLS6kMPY5eGHD59e4wIa7iHoO5JCZw+LG1ni3K9 RaKQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=redhat.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id t13si38369266pgp.569.2019.05.01.03.14.06; Wed, 01 May 2019 03:14:31 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=redhat.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726308AbfEAKMy (ORCPT + 99 others); Wed, 1 May 2019 06:12:54 -0400 Received: from mail-lj1-f196.google.com ([209.85.208.196]:45061 "EHLO mail-lj1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726124AbfEAKMx (ORCPT ); Wed, 1 May 2019 06:12:53 -0400 Received: by mail-lj1-f196.google.com with SMTP id w12so3382931ljh.12 for ; Wed, 01 May 2019 03:12:53 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:in-reply-to:references:date :message-id:mime-version; bh=ioGPC5F7kySeobmuzWBh6iE9/oKQDUZgPGo93PVH0jQ=; b=AUHsovfr5E9Ks/GQG54Wm7EanQUxVmPzhuDZy6AK+Rsgyj9l82Km3ZTpZjEWG/sJnk tefCH9Dh7770eH2IiEj08peXDchXW8OYvM4LccnDZ65/hoyQd6gnP8W9F5Ds3nxRIGtw 6/e/c6S8tu89BUvRZTyx5SsFoltQyf7N3Pfj4PtAqT7brYAOn/bj3AylazJWdiF1RnE7 58G0qw7YQdWsn402vNlg/b6Q2UEm/+62vsgMlAAmxTEFCPoZFCiRz8BZsFzyJtYX5AWE MfRAmiFVGxQVZLa74CKi/tWbTo5QFLdYfm/n1aR8Dhb6Kahgbnv6kOzGRU+SnOsye2i7 RoIw== X-Gm-Message-State: APjAAAVZoQAK1dAwxVP5Xb5hW7nkBztKLJNmlEfPo1RwS6SQ5SADztYH uh+dvODlsaDwPYw6yXWS91h2wA== X-Received: by 2002:a2e:8ec5:: with SMTP id e5mr38849623ljl.7.1556705572672; Wed, 01 May 2019 03:12:52 -0700 (PDT) Received: from alrua-x1.borgediget.toke.dk (alrua-x1.vpn.toke.dk. [2a00:7660:6da:10::2]) by smtp.gmail.com with ESMTPSA id z17sm7997581lja.26.2019.05.01.03.12.49 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Wed, 01 May 2019 03:12:50 -0700 (PDT) Received: by alrua-x1.borgediget.toke.dk (Postfix, from userid 1000) id 002071804A3; Tue, 30 Apr 2019 09:49:29 +0200 (CEST) From: Toke =?utf-8?Q?H=C3=B8iland-J=C3=B8rgensen?= To: Erik Stromdahl , johannes@sipsolutions.net, davem@davemloft.net, linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Erik Stromdahl Subject: Re: [PATCH] mac80211: fix possible deadlock in TX path In-Reply-To: <20190427204155.14211-1-erik.stromdahl@gmail.com> References: <20190427204155.14211-1-erik.stromdahl@gmail.com> X-Clacks-Overhead: GNU Terry Pratchett Date: Tue, 30 Apr 2019 09:49:29 +0200 Message-ID: <87k1fcnd9y.fsf@toke.dk> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Erik Stromdahl writes: > This patch fixes a possible deadlock when updating the TX statistics > (when calling into ieee80211_tx_stats()) from ieee80211_tx_dequeue(). So is this the fix for the issue with TX scheduling you reported earlier? :) -Toke