netdev - Re: [PATCH v2 net] strparser: Fix sign of err codes

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Date:   Tue, 27 Mar 2018 13:29:34 -0400 (EDT)
From:   David Miller <davem@...emloft.net>
To:     davejwatson@...com
Cc:     tom@...ntonium.net, netdev@...r.kernel.org
Subject: Re: [PATCH v2 net] strparser: Fix sign of err codes

From: Dave Watson <davejwatson@...com>
Date: Tue, 27 Mar 2018 08:23:52 -0700

> strp_parser_err is called with a negative code everywhere, which then
> calls abort_parser with a negative code.  strp_msg_timeout calls
> abort_parser directly with a positive code.  Negate ETIMEDOUT
> to match signed-ness of other calls.
> 
> The default abort_parser callback, strp_abort_strp, sets
> sk->sk_err to err.  Also negate the error here so sk_err always
> holds a positive value, as the rest of the net code expects.  Currently
> a negative sk_err can result in endless loops, or user code that
> thinks it actually sent/received err bytes.
> 
> Found while testing net/tls_sw recv path.
> 
> Fixes: 43a0c6751a322847 ("strparser: Stream parser for messages")
> Signed-off-by: Dave Watson <davejwatson@...com>

Your v1 patch was already applied to my net tree, so you'll have to
send any further changes as a relative patch.