Re: [PATCH] xtensa: Fix execdomain removal

[Guenter Roeck]

On 04/12/2015 07:43 AM, Jeff Epler wrote:
> On Sat, Apr 11, 2015 at 07:19:51PM -0700, Guenter Roeck wrote:
> > The removal of exexdomain changes pointer offsets into the thread_info
> > structure.
> ...
> > -#define TI_EXEC_DOMAIN	 0x00000004
> > -#define TI_FLAGS	 0x00000008
> > +#define TI_FLAGS	 0x00000004
>
> Hmm.  If these have to be maintained by hand, perhaps they can be
> BUILD_BUG_ON'd in some appropriate C file?  e.g.,
>
>      BUILD_BUG_ON(TI_FLAGS != offsetof(struct thread_info, flags));
>
> Jeff
Other architectures use either DEFINE or OFFSET macros to define
those flags, so that would probably be a better solution if something
more fancy is asked for. That should probably be a separate patch,
though.

Guenter

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