netdev - Re: [PATCH] net: compare_ether_addr[

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Date:	Tue, 08 May 2012 09:44:29 -0700
From:	Joe Perches <joe@...ches.com>
To:	David Miller <davem@...emloft.net>
Cc:	johannes@...solutions.net, eric.dumazet@...il.com,
	netdev@...r.kernel.org
Subject: Re: [PATCH] net: compare_ether_addr[_64bits]() has no ordering

On Tue, 2012-05-08 at 03:31 -0400, David Miller wrote:
> From: Joe Perches <joe@...ches.com>
> Date: Mon, 07 May 2012 23:35:36 -0700
> 
> > On Tue, 2012-05-08 at 02:26 -0400, David Miller wrote:
> >> From: Johannes Berg <johannes@...solutions.net>
> >> Date: Tue, 08 May 2012 07:25:44 +0200
> >> 
> >> > I suppose I could fix those first and then later change the type, but I
> >> > think having a "compare_ether_addr" function that returns *false* when
> >> > they *match* would be rather confusing. I'd rather have
> >> > "equal_ether_addr()" that returns *true* when they match.
> >> > 
> >> > I guess we could introduce equal_ether_addr() though and slowly convert,
> >> > keeping compare_ether_addr() as a sort of wrapper around it.
> >> 
> >> Indeed, this is one way to proceed.
> > 
> > perhaps is_equal_ether_addr or is_same_ether_addr instead?
> 
> Hmmm, my first choice would have been "eth_addr_equal()"

Perhaps ether_addr_equal for some API naming semi-consistency.

$ grep "\bint.*is_.*ether_addr" include/linux/etherdevice.h
static inline int is_zero_ether_addr(const u8 *addr)
static inline int is_multicast_ether_addr(const u8 *addr)
static inline int is_local_ether_addr(const u8 *addr)
static inline int is_broadcast_ether_addr(const u8 *addr)
static inline int is_unicast_ether_addr(const u8 *addr)
static inline int is_valid_ether_addr(const u8 *addr)

Perhaps all of these should be bool too
(patch in a separate email)


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