linux-kernel - Re: [PATCH] pch_gbe: Fix the issue which a driver locks when rx offload is set by ethtool

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Message-Id: <20110208.164030.242137610.davem@davemloft.net>
Date:	Tue, 08 Feb 2011 16:40:30 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	toshiharu-linux@....okisemi.com
Cc:	netdev@...r.kernel.org, tomoya-linux@....okisemi.com,
	qi.wang@...el.com, yong.y.wang@...el.com,
	andrew.chih.howe.khor@...el.com, joel.clark@...el.com,
	kok.howg.ewe@...el.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] pch_gbe: Fix the issue which a driver locks when rx
 offload is set by ethtool

From: Toshiharu Okada <toshiharu-linux@....okisemi.com>
Date: Tue, 08 Feb 2011 20:33:59 +0900

> @@ -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?
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