Re: [PATCH stable-only] virtio-net: fix build on m68k and sparc64

From: Michael S. Tsirkin
Date: Wed Jan 15 2014 - 03:46:34 EST


On Wed, Jan 15, 2014 at 09:36:13AM +0100, Geert Uytterhoeven wrote:
> On Wed, Jan 15, 2014 at 9:26 AM, Michael S. Tsirkin <mst@xxxxxxxxxx> wrote:
> > As a result of backporting a bugfix, virtio_net started passing void *
> > to page_address, assuming that it will get silently converted to struct
> > page *. But this does not happen on architectures where page_address is
> > a macro, the result is build failure as the macro tries to dereference
> > void*.
> >
> > Fix by reordering code slightly, so we always pass
> > struct page * to page_address.
>
> Thanks for the clue! I was just investigating a similar failure in -next.
>
> Gr{oetje,eeting}s,
>
> Geert

You don't mean linux-next? And not in virtio-net? I don't see page_address
being used on void * anywhere there.

> --
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
>
> In personal conversations with technical people, I call myself a hacker. But
> when I'm talking to journalists I just say "programmer" or something like that.
> -- Linus Torvalds
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