linux-kernel - Re: [PATCH 01/32] Add an ERR_CAST() macro to complement ERR

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Message-ID: <20071005144605.GA3072@infradead.org>
Date:	Fri, 5 Oct 2007 15:46:05 +0100
From:	Christoph Hellwig <hch@...radead.org>
To:	David Howells <dhowells@...hat.com>
Cc:	hch@...radead.org, viro@....linux.org.uk, torvalds@...l.org,
	akpm@...l.org, linux-kernel@...r.kernel.org,
	linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH 01/32] Add an ERR_CAST() macro to complement ERR_PTR and co. [try #2]

On Thu, Oct 04, 2007 at 04:56:07PM +0100, David Howells wrote:
> Add an ERR_CAST() macro to complement ERR_PTR and co. for the purposes of
> casting an error entyped as one pointer type to an error of another pointer
> type whilst making it explicit as to what is going on.
> 
> This provides a replacement for the ERR_PTR(PTR_ERR(p)) construct.

I don't like this one very much, I'd rather take the variant Linus
outline in his last post on that topic..

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