linux-kernel - Re: [PATCH 03/10] usb: catch attempts to submit urbs with a vmalloc'd transfer buffer

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Message-ID: <20140520005831.GA7933@kroah.com>
Date:	Tue, 20 May 2014 09:58:31 +0900
From:	Greg KH <gregkh@...uxfoundation.org>
To:	Mathias Nyman <mathias.nyman@...ux.intel.com>
Cc:	Dan Williams <dan.j.williams@...el.com>,
	USB list <linux-usb@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Sarah Sharp <sarah.a.sharp@...ux.intel.com>,
	Alan Stern <stern@...land.harvard.edu>
Subject: Re: [PATCH 03/10] usb: catch attempts to submit urbs with a
 vmalloc'd transfer buffer

On Mon, May 12, 2014 at 06:01:02PM +0300, Mathias Nyman wrote:
> On 05/08/2014 07:21 PM, Dan Williams wrote:
> > On Thu, May 8, 2014 at 9:25 AM, Mathias Nyman
> > <mathias.nyman@...ux.intel.com> wrote:
> >> From: Dan Williams <dan.j.williams@...el.com>
> >>
> >> Save someone else the debug cycles of figuring out why a driver's
> >> transfer request is failing or causing undefined system behavior.
> >> Buffers submitted for dma must come from GFP allocated / DMA-able
> >> memory.
> >>
> >> Return -EAGAIN matching the return value for dma_mapping_error() cases.
> >>
> >> Cc: Alan Stern <stern@...land.harvard.edu>
> >> Cc: Sarah Sharp <sarah.a.sharp@...ux.intel.com>
> >> Cc: Mathias Nyman <mathias.nyman@...ux.intel.com>
> >> Signed-off-by: Dan Williams <dan.j.williams@...el.com>
> >> Signed-off-by: Mathias Nyman <mathias.nyman@...ux.intel.com>
> >
> > Thanks Mathias.
> >
> > One note, this was acked-by Alan here:
> >
> > http://marc.info/?l=linux-usb&m=139327920501989&w=2
> >
> 
> Ah, Right
> 
> Greg, Alan, Should I resubmit this series with the added ACK for this patch?

No need, I can add it.
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