linux-kernel - Re: [PATCH] remove DMA_nBIT

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Message-ID: <4A029FD1.1050007@gmail.com>
Date:	Thu, 07 May 2009 10:46:09 +0200
From:	Jiri Slaby <jirislaby@...il.com>
To:	Yang Hongyang <yanghy@...fujitsu.com>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
	linux-arm-kernel@...ts.arm.linux.org.uk
Subject: Re: [PATCH] remove DMA_nBIT_MASK macro

On 05/07/2009 10:29 AM, Yang Hongyang wrote:
> Shall we use something like below to warn people?
> #define DMA_64BIT_MASK	DMA_BIT_MASK(64);(__deprecated warnings:use DMA_BIT_MASK(64) instead) ?

Something like an irq flags deprecation in the past:
http://lwn.net/Articles/229673/
?

I don't know how many in-initializer (struct x x = { DMA_64BIT_MASK } )
users are out there though.
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