From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH] pch_gbe: Fix the issue which a driver locks when rx offload is set by ethtool Date: Tue, 08 Feb 2011 22:57:02 -0800 (PST) Message-ID: <20110208.225702.104076116.davem@davemloft.net> References: <4D512A27.2030406@dsn.okisemi.com> <20110208.164030.242137610.davem@davemloft.net> <3F7E1C17407A45E3834BF70553CB294C@hacdom.okisemi.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, tomoya-linux@dsn.okisemi.com, qi.wang@intel.com, yong.y.wang@intel.com, andrew.chih.howe.khor@intel.com, joel.clark@intel.com, kok.howg.ewe@intel.com, linux-kernel@vger.kernel.org To: toshiharu-linux@dsn.okisemi.com Return-path: In-Reply-To: <3F7E1C17407A45E3834BF70553CB294C@hacdom.okisemi.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org From: "Toshiharu Okada" Date: Wed, 9 Feb 2011 11:04:11 +0900 > From: David Miller > Date: Tue, 08 Feb 2011 16:40:30 -0800 (PST) > >>> @@ -531,12 +533,8 @@ void pch_gbe_reinit_locked(struct pch_gbe_adapter >>> *adapter) >>> { >>> struct net_device *netdev = adapter->netdev; >>> >>> - rtnl_lock(); >>> - if (netif_running(netdev)) { >>> - pch_gbe_down(adapter); >>> - pch_gbe_up(adapter); >>> - } >>> - rtnl_unlock(); >>> + pch_gbe_down(adapter); >>> + pch_gbe_up(adapter); >> >>Are you sure you can just blindly delete the netif_running() check here? > > Yes, sure. > pch_gbe_reinit_locked() is called after confirming of netif_running() except > for pch_gbe_reset_task() function. > This netif_running() was redundant. Thanks for explaining, applied, thank you.