From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH net v3] bonding: fix bond_poll_controller bh_enable warning Date: Fri, 28 Aug 2015 22:26:45 -0700 (PDT) Message-ID: <20150828.222645.1574109168572497876.davem@davemloft.net> References: <69380EC5-CF63-48BE-AFCB-4F70E6869DFC@cumulusnetworks.com> <1440799532-9150-1-git-send-email-razor@blackwall.org> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, 13806511171@163.com, shemminger@linux-foundation.org, maheshb@google.com, j.vosburgh@gmail.com, vfalico@gmail.com, gospo@cumulusnetworks.com, nikolay@cumulusnetworks.com To: razor@blackwall.org Return-path: Received: from shards.monkeyblade.net ([149.20.54.216]:58302 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752626AbbH2F0q (ORCPT ); Sat, 29 Aug 2015 01:26:46 -0400 In-Reply-To: <1440799532-9150-1-git-send-email-razor@blackwall.org> Sender: netdev-owner@vger.kernel.org List-ID: From: Nikolay Aleksandrov Date: Fri, 28 Aug 2015 15:05:32 -0700 > From: Nikolay Aleksandrov > > The problem is rcu_read_unlock_bh() which triggers a warning when irqs are > disabled. ndo_poll_controller should run with irqs disabled always so we > can drop the rcu_read_lock_bh. ... > Fixes: 616f45416ca0 ("bonding: implement bond_poll_controller()") > Signed-off-by: Nikolay Aleksandrov > --- > v3: After Dave made it clear that poll_controller should always be called > with interrupts disabled we can simply drop the rcu bh lock. Applied.