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Re: [Qemu-devel] [PATCH 2/3] hw/virtio-net.c: set config size using host
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From: |
Eric Blake |
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Subject: |
Re: [Qemu-devel] [PATCH 2/3] hw/virtio-net.c: set config size using host features |
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Date: |
Tue, 05 Feb 2013 16:07:19 -0700 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130110 Thunderbird/17.0.2 |
On 02/05/2013 03:48 PM, Jesse Larrew wrote:
> Currently, the config size for virtio devices is hard coded. When a new
> feature is added that changes the config size, drivers that assume a static
> config size will break. For purposes of backward compatability, there needs
s/compatability/compatibility/
> to be a way to inform drivers of the config size needed to accomodate the
s/accomodate/accommodate/
> set of features enabled.
>
> Signed-off-by: Jesse Larrew <address@hidden>
>
> +/*
> + * Calculate the number of bytes up to and including the given 'field' of
> + * 'container'.
> + */
> +#define endof(container, field) \
> + (intptr_t)(&(((container *)0)->field)+1)
Insufficient (); should be:
((intptr_t)(&(((container *)0)->field)+1))
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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