[RFC] Using C99 stdint vs kernel __uX types in kernel drmUAPI (was Re: [PATCH 1/2] Revert "include/uapi/drm/amdgpu_drm.h: use __u32 and __u64 from <linux/types.h>")

[Christian König]

Am 22.08.2016 um 10:48 schrieb Emil Velikov:
>
> Although last time around people leaned towards the __uX types, if we
> have a consensus amongst drm (kernel) developers about using stdint
> ones everything should be fine.
> We just need a handful of acks from the different maintainers.

For the record I always clearly voted for the C99 stdint types instead 
of the kernel ones.

> That said, _note_ that some applications are built with -C89 -pedantic
> [1] which means that using stdint.h may or may not work as expected.
> So we'll want a __STDC_VESION__ check + #error in case of pre-C99 ?
> If the affected programs are proprietary ones we should be safe,
> otherwise we want to update them ~alongside the transition.

While it is theoretical possible I don't think we have any applications 
which actually do this, cause they would have been broken before as well.

Regards,
Christian.

>
> Thanks
> Emil
>
> [1]
> https://cgit.freedesktop.org/mesa/drm/commit/?id=0f4452bb51306024fbf4cbf77d8baab20cefba67
> https://cgit.freedesktop.org/mesa/drm/commit/?id=d20314d083e533e3b8753192b1846752341afbbe
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