Re: [Xen-devel] [PATCH 2/2] xen/arm: make accesses to desc->status flags atomic

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Fri, 2014-06-13 at 12:41 +0100, Stefano Stabellini wrote:
> On Fri, 13 Jun 2014, Ian Campbell wrote:
> > On Fri, 2014-06-13 at 12:24 +0100, Stefano Stabellini wrote:
> > > Using *_bit manipulation functions on desc->status is safe on arm64:
> > > status is an unsigned int but is the first field of a struct that
> > > contains pointers, therefore the alignement of the struct is at least 8
> > 
> > "alignment"
> > 
> > > bytes.
> > 
> > Are the non underscore versions of the register definitions even used
> > after this? If not then I'd prefer to just use the non-underscored
> > names.
> 
> Yes, by x86

Ah! I wondered why Jan was CCd ;-)



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