netdev - Re: [PATCH net-next] net: x25: Fix handling of Restart Request and Restart Confirmation

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Date:   Wed, 09 Dec 2020 19:35:06 -0800 (PST)
From:   David Miller <davem@...emloft.net>
To:     xie.he.0141@...il.com
Cc:     kuba@...nel.org, linux-x25@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, ms@....tdt.de
Subject: Re: [PATCH net-next] net: x25: Fix handling of Restart Request and
 Restart Confirmation

From: Xie He <xie.he.0141@...il.com>
Date: Wed,  9 Dec 2020 00:16:04 -0800

> 1. When the x25 module gets loaded, layer 2 may already be running and
> connected. In this case, although we are in X25_LINK_STATE_0, we still
> need to handle the Restart Request received, rather than ignore it.
> 
> 2. When we are in X25_LINK_STATE_2, we have already sent a Restart Request
> and is waiting for the Restart Confirmation with t20timer. t20timer will
> restart itself repeatedly forever so it will always be there, as long as we
> are in State 2. So we don't need to check x25_t20timer_pending again.
> 
> Fixes: d023b2b9ccc2 ("net/x25: fix restart request/confirm handling")
> Cc: Martin Schiller <ms@....tdt.de>
> Signed-off-by: Xie He <xie.he.0141@...il.com>

Applied, thanks.