netdev - Re: ERR_PTR pattern in phylib

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Message-Id: <20100902.093451.189703514.davem@davemloft.net>
Date:	Thu, 02 Sep 2010 09:34:51 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	macro@...ux-mips.org
Cc:	grant.likely@...retlab.ca, afleming@...escale.com,
	netdev@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Subject: Re: ERR_PTR pattern in phylib

From: "Maciej W. Rozycki" <macro@...ux-mips.org>
Date: Thu, 2 Sep 2010 16:20:34 +0100 (BST)

>  Arguably using a union here would make things cleaner and any reasonable 
> ABI will place small unions used as arguments or return values in 
> registers, but I'm not sure if the cost of the rewrite is worth the 

Well, sparc 32-bit's ABI for one is "not reasonable" and these return
values will always get stack slots and passed back by reference.
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