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Date:	Wed, 29 Jan 2014 11:39:51 -0800 (PST)
From:	François-Xavier Le Bail <>
To:	Stephen Hemminger <>,
	Linux Netdev List <>,
	Pavel Emelyanov <>
Subject: Re: [PATCH] iproute: Properly handle protocol level diag module absence

On Tue, 1/28/14, Pavel Emelyanov <> wrote:

> When *_diag module is missing in the kernel, the ss tool should go
> ad read legacry /proc/* files.

> This is the case when all *_diag stuff is missing, but in case the
> inet_diag.ko is loaded, but (tcp|udp)_diag.ko is not, the ss tool
> doesn't notice this and produces empty output. The reason for that
> is -- error from the inet_diag module (which means, that e.g. the
> udp_diag is missing) is reported in the NLMSG_DONE message body.

> That said, we need to check the NLMSG_DONE's message return code
> and act respectively.

> Reported-by: François-Xavier Le Bail <>
> Signed-off-by: Pavel Emelyanov <>

> ---

Tested-by: François-Xavier Le Bail <>
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