netdev - Re: [net-next PATCH 00/10] BPF: sockmap and sk redirect support

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Message-Id: <20170816.113501.1961184995639656444.davem@davemloft.net>
Date:   Wed, 16 Aug 2017 11:35:01 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     john.fastabend@...il.com
Cc:     daniel@...earbox.net, ast@...com, tgraf@...g.ch,
        netdev@...r.kernel.org, tom@...bertland.com
Subject: Re: [net-next PATCH 00/10] BPF: sockmap and sk redirect support

From: David Miller <davem@...emloft.net>
Date: Wed, 16 Aug 2017 11:28:19 -0700 (PDT)

> From: John Fastabend <john.fastabend@...il.com>
> Date: Tue, 15 Aug 2017 22:30:15 -0700
> 
>> This series implements a sockmap and socket redirect helper for BPF
>> using a model similar to XDP netdev redirect.
> 
> Series applied, thanks John.
> 

We get a legit warning from gcc due to these changes:

kernel/bpf/sockmap.c: In function ‘smap_state_change’:
kernel/bpf/sockmap.c:156:21: warning: ‘psock’ may be used uninitialized in this function [-Wmaybe-uninitialized]
  struct smap_psock *psock;

It's the default switch case in this function, psock is not initialized
for sure at this point.