netdev - Re: [RFC, PATCH] IPV6 : add 64 bits components in struct in6_addr to speedup ipv6_addr_equal() & ipv6_addr

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Message-ID: <p73bqh5zgv7.fsf@bingen.suse.de>
Date:	30 Apr 2007 23:34:20 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	David Miller <davem@...emloft.net>
Cc:	dada1@...mosbay.com, yoshfuji@...ux-ipv6.org,
	netdev@...r.kernel.org
Subject: Re: [RFC, PATCH] IPV6 : add 64 bits components in struct in6_addr to speedup ipv6_addr_equal() & ipv6_addr_any()

David Miller <davem@...emloft.net> writes:
> 
> Unfortunately, as mentioned elsewhere, we're only able to assume
> 32-bit alignment of ipv6 packet headers and that isn't likely to
> change any time soon.

On x86 it would be fine at least -- unaligned access is cheap. I believe
the same is true for POWER4/5/s390x. Should it be made conditional perhaps?

-Andi
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