linux-kernel - Re: Removing __kernel_old_uid_t, git_t, dev

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Date:	Tue, 31 Mar 2009 02:26:26 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	David Miller <davem@...emloft.net>
Cc:	geert.uytterhoeven@...il.com, michal.simek@...alogix.com,
	linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
	linux-api@...r.kernel.org
Subject: Re: Removing __kernel_old_uid_t, git_t, dev_t

On Monday 30 March 2009, David Miller wrote:
> There is no reason to use anything larger than a 32-bit DMA address
> type on sparc64, and using 32-bit saves lots of space in many
> data structures so I am unlikely to ever change this. :-)

Ok, fair enough. So I'll change my asm-generic/types.h to use

#ifndef dma_addr_t
#ifdef CONFIG_PHYS_ADDR_T_64BIT
typedef u64 dma_addr_t;
#else
typedef u32 dma_addr_t;
#endif /* CONFIG_PHYS_ADDR_T_64BIT */
#endif /* dma_addr_t */

If you eventually want to use the the generic version, you
just need to add

#define dma_addr_t dma_addr_t

before the #include. Or you just ignore the asm-generic version
and don't have to do anything.

	Arnd <><
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