linux-kernel - RE: [RFC net-next] treewide: s/ipv4_is_<foo>()/ipv4_addr

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Message-ID: <AE90C24D6B3A694183C094C60CF0A2F6026B7037@saturn3.aculab.com>
Date:	Thu, 11 Oct 2012 09:11:18 +0100
From:	"David Laight" <David.Laight@...LAB.COM>
To:	"Joe Perches" <joe@...ches.com>,
	"Eric Dumazet" <eric.dumazet@...il.com>,
	"David Miller" <davem@...emloft.net>
Cc:	"netdev" <netdev@...r.kernel.org>,
	"LKML" <linux-kernel@...r.kernel.org>,
	"Brian Haley" <brian.haley@...com>
Subject: RE: [RFC net-next] treewide: s/ipv4_is_<foo>()/ipv4_addr_<foo>/

> ipv4 and ipv6 use different styles for these tests.
> 
> ipv4_is_<foo>(__be32)
> ipv6_addr_<foo>(struct in6_addr *)

I presume there is a 'const' in there ...

> Perhaps it'd be good to convert the ipv4 tests to the ipv6 style.

You don't want to force an IPv4 address (which might be in a register)
be written out to stack.
Taking the address also has implications for the optimiser.

	David



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