From: Stefan Richter <stefanr@s5r6.in-berlin.de>
To: Elimar Riesebieter <riesebie@lxtec.de>
Cc: linuxppc-dev@ozlabs.org, linux1394-devel@lists.sourceforge.net,
ben.collins@ubuntu.com
Subject: Re: 2.6.22-rc2 built on ppc
Date: Sun, 20 May 2007 18:01:48 +0200 [thread overview]
Message-ID: <465070EC.6030403@s5r6.in-berlin.de> (raw)
In-Reply-To: <46506EE0.9000405@s5r6.in-berlin.de>
I wrote:
> The allegedly unused variables are used in calls to dma_unmap_single(),
> but only for these calls.
and a call to dma_unmap_sg().
> On PPC32, you get
>
> /* We do nothing. */
> #define dma_unmap_single(dev, addr, size, dir) ((void)0)
>
> in dma-mapping.h. This is also the case for Linux 2.6.20.
> But in Linux 2.6.19 and older, it was
>
> /* We do nothing. */
> #define dma_unmap_single(dev, addr, size, dir) do { } while (0)
...
> I don't know what's to blame for the warnings --- new gcc versions or
> the change from do { } while (0) to ((void)0)?
...
Ditto for dma_unmap_sg().
--
Stefan Richter
-=====-=-=== -=-= =-=--
http://arcgraph.de/sr/
next prev parent reply other threads:[~2007-05-20 16:02 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20070520112904.GM3253@aragorn.home.lxtec.de>
2007-05-20 15:53 ` 2.6.22-rc2 built on ppc Stefan Richter
2007-05-20 16:01 ` Stefan Richter [this message]
2007-05-20 16:49 ` Arnd Bergmann
2007-05-20 18:19 ` Segher Boessenkool
2007-05-20 18:40 ` Stefan Richter
2007-05-20 20:39 ` Geert Uytterhoeven
2007-05-20 11:30 Elimar Riesebieter
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