Re: [Xen-devel] [PATCH v2] xen/block: Correctly define structures in public headers on ARM32 and ARM64

[Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>]

On Tue, Dec 03, 2013 at 05:03:10PM +0000, One Thousand Gnomes wrote:
> > itself. The protocol is defined by an entity which is external to Linux.
> > If this had been a bug in the IP protocol handling we would fix it and
> > move on. This case is no different IMHO.
> 
> Actually that is quite untrue. We are *very* careful that we can talk to
> other internet nodes that speak broken versions of TCP. There have even
> been changes made to protocol definitions during initial research to
> avoid tripping bugs in existing implementations.
> 
> > Once we set the ABI in stone then this is the sort of thing we will care
> > very much about (as we have done for many years on x86). Until then it
> > is not.
> 
> Maybe Xen doesn't, but perhaps Linux doesn't wish to be tarred with the
> same brush. What Xen decides is the official protocol is Xen's decision.
> What a Linux guest does to keep compatibility ought to follow what Linux
> does as policy.

I believe that this patch does not alter the x86 protocols.
Only the ARM based ones which are still in Technical Preview.

> 
> Alan

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