linux-kernel - Re: linux-next: manual merge of the usb tree with the sound tree

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Date:	Fri, 21 May 2010 08:19:43 +0200
From:	Takashi Iwai <tiwai@...e.de>
To:	Stephen Rothwell <sfr@...b.auug.org.au>
Cc:	Greg KH <greg@...ah.com>, Daniel Mack <daniel@...aq.de>,
	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	Linus <torvalds@...ux-foundation.org>
Subject: Re: linux-next: manual merge of the usb tree with the sound tree

At Fri, 21 May 2010 07:45:35 +0200,
I wrote:
> 
> At Fri, 21 May 2010 10:39:40 +1000,
> Stephen Rothwell wrote:
> > 
> > Hi Greg, Takashi,
> > 
> > On Fri, 30 Apr 2010 07:59:14 +0200 Daniel Mack <daniel@...aq.de> wrote:
> > >
> > > On Fri, Apr 30, 2010 at 03:51:34PM +1000, Stephen Rothwell wrote:
> > > > Today's linux-next merge of the usb tree got a conflict in
> > > > sound/usb/usbaudio.c between commit
> > > > e5779998bf8b70e48a6cc208c8b61b33bd6117ea ("ALSA: usb-audio: refactor
> > > > code") from the sound tree and commit
> > > > 3cc96f50329227fbf34de2459491901b6ee1c98c ("USB: rename usb_buffer_alloc()
> > > > and usb_buffer_free() users") from the usb tree.
> > > > 
> > > > The former moved the relevant code from usbaudio.c to urb.c, so I applied
> > > > the changes from the latter to that (see below).
> > > 
> > > Oops, yes. Ironically, these are both my patches.
> > > Thanks for fixing this up, Stephen.
> > 
> > The sound tree has now been merged int Linus', so this patch needs to be
> > applied to the usb tree before it is merged into Linus'.   This patch can
> > be applied to Linus' tree right now, as usb_free_coherent() already
> > exists there.
> > 
> > Here is the patch again:
> > 
> > From: Stephen Rothwell <sfr@...b.auug.org.au>
> > Date: Fri, 30 Apr 2010 14:44:54 +1000
> > Subject: [PATCH] sound: fixup for usb_buffer_alloc/free rename
> > 
> > Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
> 
> Thanks for heading up!  Greg, please merge it to usb tree.

Ah, Linus already picked it up manually.  Disregard my comment above.

Thanks!


Takashi

> 
> Acked-by: Takashi Iwai <tiwai@...e.de>
> 
> 
> Takashi
> 
> > ---
> >  sound/usb/urb.c |   10 +++++-----
> >  1 files changed, 5 insertions(+), 5 deletions(-)
> > 
> > diff --git a/sound/usb/urb.c b/sound/usb/urb.c
> > index 5570a2b..de607d4 100644
> > --- a/sound/usb/urb.c
> > +++ b/sound/usb/urb.c
> > @@ -101,7 +101,7 @@ static void release_urb_ctx(struct snd_urb_ctx *u)
> >  {
> >  	if (u->urb) {
> >  		if (u->buffer_size)
> > -			usb_buffer_free(u->subs->dev, u->buffer_size,
> > +			usb_free_coherent(u->subs->dev, u->buffer_size,
> >  					u->urb->transfer_buffer,
> >  					u->urb->transfer_dma);
> >  		usb_free_urb(u->urb);
> > @@ -154,7 +154,7 @@ void snd_usb_release_substream_urbs(struct snd_usb_substream *subs, int force)
> >  		release_urb_ctx(&subs->dataurb[i]);
> >  	for (i = 0; i < SYNC_URBS; i++)
> >  		release_urb_ctx(&subs->syncurb[i]);
> > -	usb_buffer_free(subs->dev, SYNC_URBS * 4,
> > +	usb_free_coherent(subs->dev, SYNC_URBS * 4,
> >  			subs->syncbuf, subs->sync_dma);
> >  	subs->syncbuf = NULL;
> >  	subs->nurbs = 0;
> > @@ -308,8 +308,8 @@ int snd_usb_init_substream_urbs(struct snd_usb_substream *subs,
> >  		if (!u->urb)
> >  			goto out_of_memory;
> >  		u->urb->transfer_buffer =
> > -			usb_buffer_alloc(subs->dev, u->buffer_size, GFP_KERNEL,
> > -					 &u->urb->transfer_dma);
> > +			usb_alloc_coherent(subs->dev, u->buffer_size,
> > +					   GFP_KERNEL, &u->urb->transfer_dma);
> >  		if (!u->urb->transfer_buffer)
> >  			goto out_of_memory;
> >  		u->urb->pipe = subs->datapipe;
> > @@ -321,7 +321,7 @@ int snd_usb_init_substream_urbs(struct snd_usb_substream *subs,
> >  
> >  	if (subs->syncpipe) {
> >  		/* allocate and initialize sync urbs */
> > -		subs->syncbuf = usb_buffer_alloc(subs->dev, SYNC_URBS * 4,
> > +		subs->syncbuf = usb_alloc_coherent(subs->dev, SYNC_URBS * 4,
> >  						 GFP_KERNEL, &subs->sync_dma);
> >  		if (!subs->syncbuf)
> >  			goto out_of_memory;
> > -- 
> > 1.7.1
> > 
> > 
> > -- 
> > Cheers,
> > Stephen Rothwell                    sfr@...b.auug.org.au
> > http://www.canb.auug.org.au/~sfr/
> > 
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