Re: [Xen-devel] [PATCH 01/24] xen/mm: Don't use _{g, m}fn for defining INVALID_{G, M}FN

[Tim Deegan <tim@xxxxxxx>]

At 17:13 +0100 on 13 Jun (1497373980), Julien Grall wrote:
> INVALID_{G,M}FN are defined using static inline helpers _{g,m}fn.
> This means, they cannot be used to initialize a build time static variable:
> 
> In file included from mm.c:24:0:
> xen/xen/include/xen/mm.h:59:26: error: initializer element is not constant
>  #define INVALID_MFN      _mfn(~0UL)
> 
> Signed-off-by: Julien Grall <julien.grall@xxxxxxx>

Acked-by: Tim Deegan <tim@xxxxxxx>

> I know that this solution will not work for non-debug build. I would
> like input from the community on way to fix it nicely.

It seems to WFM: https://godbolt.org/g/vEVNY3

Tim.

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