netdev - Re: bug in passing file descriptors

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Message-Id: <20131007.154226.533738557474978526.davem@davemloft.net>
Date:	Mon, 07 Oct 2013 15:42:26 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	sar@...-labs.com
Cc:	luto@...capital.net, netdev@...r.kernel.org,
	mtk.manpages@...il.com, ebiederm@...ssion.com
Subject: Re: bug in passing file descriptors

From: Steve Rago <sar@...-labs.com>
Date: Mon, 7 Oct 2013 15:17:24 -0400

> Except when sizeof(long) can change and you need to maintain binary
> compatibility with older applications.  x86 comes to mind as a
> relevant example: used to be 32 bits, but is 64 now.

There is no compatability issue.

32-bit tasks will always see the 4-byte align/length.
64-bit tasks will always see the 8-byte align/length.
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