netdev - Re: [patch net] net: correct check in dev_addr

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Date:	Wed, 14 Nov 2012 21:52:54 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	jiri@...nulli.us
Cc:	netdev@...r.kernel.org, eric.dumazet@...il.com,
	shemminger@...tta.com, john.r.fastabend@...el.com
Subject: Re: [patch net] net: correct check in dev_addr_del()

From: Jiri Pirko <jiri@...nulli.us>
Date: Wed, 14 Nov 2012 13:51:04 +0100

> Check (ha->addr == dev->dev_addr) is always true because dev_addr_init()
> sets this. Correct the check to behave properly on addr removal.
> 
> Signed-off-by: Jiri Pirko <jiri@...nulli.us>

I'm pretty sure this is very intentional.

It's trying to prevent deletion of the implicit dev->dev_addr
entry.  But it will allow decementing the reference count to
1, but no further.

I'm not applying this.
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