linux-kernel - Re: [RFC PATCH 1/2] netpoll: extract core of netpoll

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Message-ID: <ff42f723b718c7ac8aee992ba0719cb56910ebe3.camel@surriel.com>
Date: Thu, 18 Jul 2024 15:47:43 -0400
From: Rik van Riel <riel@...riel.com>
To: Breno Leitao <leitao@...ian.org>, kuba@...nel.org, davem@...emloft.net, 
	edumazet@...gle.com, pabeni@...hat.com
Cc: thepacketgeek@...il.com, horms@...nel.org, netdev@...r.kernel.org, 
	linux-kernel@...r.kernel.org, paulmck@...nel.org, davej@...emonkey.org.uk
Subject: Re: [RFC PATCH 1/2] netpoll: extract core of netpoll_cleanup

On Thu, 2024-07-18 at 11:43 -0700, Breno Leitao wrote:
> Extract the core part of netpoll_cleanup(), so, it could be called
> from
> a caller that has the rtnl lock already.
> 
> Netconsole uses this in a weird way right now:
> 
> 	__netpoll_cleanup(&nt->np);
> 	spin_lock_irqsave(&target_list_lock, flags);
> 	netdev_put(nt->np.dev, &nt->np.dev_tracker);
> 	nt->np.dev = NULL;
> 	nt->enabled = false;
> 
> This will be replaced by do_netpoll_cleanup() as the locking
> situation
> is overhauled.
> 
> Signed-off-by: Breno Leitao <leitao@...ian.org>

Reviewed-by: Rik van Riel <riel@...riel.com>

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