Re: [Xen-devel] [PATCH 1/5] libxl: remove DM path in libxl__device_model_destroy

[Ian Campbell <ian.campbell@xxxxxxxxxx>]

On Wed, 2015-03-18 at 13:21 +0000, Ian Campbell wrote:
> On Fri, 2015-03-13 at 10:34 +0000, Wei Liu wrote:
> > ... because it is the right place to clean up device model stuffs.
> 
> ... and not devices_destroy_cb because it is the right ...
> 
> (also "stuff").
> 
> > And the path should use LIBXL_TOOLSTACK_DOMID instead of hardcoded 0.
> 
> Between this and what is in the next patch I think you probably should
> refactor into a helper function to get the correct path for a given
> domid.
> 
> FWIW I think you might also be able to do:
>         GCSPRINTF("/local/domain/" #LIBXL_TOOLSTACK_DOMID "/device-model/%d",
>                   domid);
> 
> If you want, although perhaps the intention is for it to eventually not
> be a hard-define of 0 and become e.g. a function call or a global
> variable reference, in which case best not?

Having reread patch #0 more carefully I suppose the helper would need to
take the dm_domid too, which would then rule out that cpp trick.

Ian.



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