Re: [PATCH net] atl1c: Improve driver not to do order 4 GFP_ATOMIC allocation

From: Pavel Machek
Date: Fri Dec 04 2015 - 16:30:35 EST


On Fri 2015-12-04 11:21:40, David Miller wrote:
> From: Pavel Machek <pavel@xxxxxx>
> Date: Fri, 4 Dec 2015 09:11:27 +0100
>
> >> >> if (unlikely(!ring_header->desc)) {
> >> >> - dev_err(&pdev->dev, "pci_alloc_consistend failed\n");
> >> >> + dev_err(&pdev->dev, "could not get memory for DMA buffer\n");
> >> >> goto err_nomem;
> >> >> }
> >> >> memset(ring_header->desc, 0, ring_header->size);
> >> >>
> >> >>
> >> >
> >> > So this memset() will really require a different patch to get removed ?
> >> >
> >> > Sigh, not sure why I review patches.
> >>
> >> Agreed, please use dma_zalloc_coherent() and kill that memset().
> >
> > Ok, updated. I'll also add cc: stable, because it makes notebooks with
> > affected chipset unusable.
>
> Networking patches do not use CC: stable, instead you simply ask me
> to queue it up and then I batch submit networking fixes to -stable
> periodically myself.

Ok, can you take the patch and ignore the Cc, or should I do one more
iteration?

Thanks,
Pavel
--
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