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From: Andrew Morton <akpm@linux-foundation.org>
To: "Dan Williams" <dan.j.williams@intel.com>
Cc: "Timur Tabi" <timur@freescale.com>,
	haavard.skinnemoen@atmel.com, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] dmatest: properly handle duplicate DMA channels
Date: Sat, 20 Sep 2008 15:20:48 -0700	[thread overview]
Message-ID: <20080920152048.75ea4655.akpm@linux-foundation.org> (raw)
In-Reply-To: <e9c3a7c20809201440t739ea58enede8d0d6a70f5118@mail.gmail.com>

On Sat, 20 Sep 2008 14:40:40 -0700 "Dan Williams" <dan.j.williams@intel.com> wrote:

> When I fix this up is there a
> canonical location to document a callback interface rather than at the
> callback's typedef?

Personally I like to see at at the definition site, so that's within
the struct which contains the function pointer.  eg:

struct address_space_operations {
	int (*writepage)(struct page *page, struct writeback_control *wbc);
	int (*readpage)(struct file *, struct page *);
	void (*sync_page)(struct page *);

	/* Write back some dirty pages from this mapping. */
	int (*writepages)(struct address_space *, struct writeback_control *);

	/* Set a page dirty.  Return true if this dirtied it */
	int (*set_page_dirty)(struct page *page);

(sadly incomplete, but we tried)

      reply	other threads:[~2008-09-20 22:21 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-09-18 15:21 [PATCH] dmatest: properly handle duplicate DMA channels Timur Tabi
2008-09-18 15:32 ` Haavard Skinnemoen
2008-09-18 15:34   ` Timur Tabi
2008-09-18 15:48     ` Haavard Skinnemoen
2008-09-19 23:31 ` Andrew Morton
2008-09-20 12:42   ` Haavard Skinnemoen
2008-09-20 21:40   ` Dan Williams
2008-09-20 22:20     ` Andrew Morton [this message]

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