Re: [Qemu-devel] [PATCH 1/2] memory: allow zero size for adjust_endianness()

[Greg Kurz]

On Wed, 26 Aug 2015 15:21:59 +0100
Peter Maydell <address@hidden> wrote:

> On 26 August 2015 at 11:04, Jason Wang <address@hidden> wrote:
> > Wildcard mmio eventfd use zero size, but it will lead abort() since it
> > was illegal in adjust_endianness(). Fix this by allowing zero size.
> >
> > Cc: Greg Kurz <address@hidden>
> > Cc: Paolo Bonzini <address@hidden>
> > Signed-off-by: Jason Wang <address@hidden>
> 
> This seems to me like a bug in the caller. Why would anything
> try to call into the memory subsystem to do a zero-size
> transaction?
> 
> thanks
> -- PMM
> 

Here's the patch which needs zero-size eventfd:

http://patchwork.ozlabs.org/patch/509428/

Cheers.

--
Greg