From mboxrd@z Thu Jan  1 00:00:00 1970
From: Oliver Neukum <oneukum@suse.de>
Subject: Re: [PATCH 03/16] HID: wiimote: Add drm request
Date: Thu, 28 Jul 2011 20:47:14 +0200
Message-ID: <201107282047.14903.oneukum@suse.de>
References: <1311869316-17128-1-git-send-email-dh.herrmann@googlemail.com> <201107282005.40226.oneukum@suse.de> <CANq1E4Qui-84C+rDOSnQKvC+BoKWTnZWXOSH=kYtdE0bPB1yCA@mail.gmail.com>
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To: David Herrmann <dh.herrmann@googlemail.com>
Cc: linux-input@vger.kernel.org, jkosina@suse.cz, padovan@profusion.mobi

Am Donnerstag, 28. Juli 2011, 20:41:18 schrieb David Herrmann:
> On Thu, Jul 28, 2011 at 8:05 PM, Oliver Neukum <oneukum@suse.de> wrote:
> > Am Donnerstag, 28. Juli 2011, 18:08:23 schrieb David Herrmann:
> >> +static void wiiproto_req_drm(struct wiimote_data *wdata, __u8 drm)
> >> +{
> >> +       __u8 cmd[3];
> >
> > Are you sure these buffers nned not be safe for DMA?
> 
> wiimote_queue() allocates a buffer for every request. This should be
> fine for DMA then. All wiimote_req_*() functions work the same way.
> 

Yes, that's safe.

	Regards
		Oliver