netdev - Re: [PATCH 2/2] ax25: Fix deadlock hang during concurrent read and write on socket.

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Date:   Tue, 12 Oct 2021 15:09:51 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Ralf Baechle <ralf@...ux-mips.org>
Cc:     netdev@...r.kernel.org, "David S. Miller" <davem@...emloft.net>,
        Christoph Hellwig <hch@....de>,
        Thomas Osterried <thomas@...erried.de>,
        linux-hams@...r.kernel.org
Subject: Re: [PATCH 2/2] ax25: Fix deadlock hang during concurrent read and
 write on socket.

On Tue, 12 Oct 2021 22:05:30 +0200 Ralf Baechle wrote:
> From: Thomas Habets <thomas@...ets.se>
> 
> Before this patch, this hangs, because the read(2) blocks the
> write(2).

Still build issues:

net/ax25/af_ax25.c: In function ‘ax25_recvmsg’:
net/ax25/af_ax25.c:1685:1: warning: label ‘out’ defined but not used [-Wunused-label]
 1685 | out:
      | ^~~
net/ax25/af_ax25.c:1685:1: warning: unused label 'out'