netdev - Re: [Patch net-next v3 9/9] selinux: use generic union inet

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Message-ID: <5212915F.20905@schaufler-ca.com>
Date:	Mon, 19 Aug 2013 14:42:55 -0700
From:	Casey Schaufler <casey@...aufler-ca.com>
To:	David Miller <davem@...emloft.net>
CC:	amwang@...hat.com, netdev@...r.kernel.org,
	james.l.morris@...cle.com, sds@...ho.nsa.gov,
	eparis@...isplace.org, pmoore@...hat.com,
	linux-kernel@...r.kernel.org, linux-security-module@...r.kernel.org
Subject: Re: [Patch net-next v3 9/9] selinux: use generic union inet_addr

On 8/19/2013 12:50 PM, David Miller wrote:
> It's so that you can pass a generic ipv4/ipv6 address blob into
> things like printf formatting, and since there is an address family
> member present, it knows what's in there and therefore one printf
> format specifier can handle both ipv4 and ipv6 addresses.

The patch message needs to say that, then.

> Like you, I think these changes a complete waste of time too, I'm just
> relaying what I was told.

Well, they certainly don't appear to add any value on their own.
I also generally oppose doing clever things with data structures.
I recently got bitten by the "obvious" relationships between
sockaddr, sockaddr_in and sockaddr_in6, and I've been doing this
stuff since before ioctl was invented.

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