[PATCH] drm/doc: document that PRIME import/export is always supported

[Thomas Zimmermann]

Am 13.07.23 um 09:17 schrieb Simon Ser:
> On Thursday, July 13th, 2023 at 07:09, Thomas Zimmermann <tzimmermann at suse.de> wrote:
> 
>>> + * Starting from kernel version 6.6, both &DRM_PRIME_CAP_IMPORT and
>>> + * &DRM_PRIME_CAP_EXPORT are always advertised.
>>> + *
>>
>> When people port these changes into their trees the version becomes
>> meaningless. There are so many "enterprise kernels" that combine whole
>> subsystems from different upstream releases.
>>
>> That makes me wonder if such documentation makes sense. We want to avoid
>> a situation where userspace does
>>
>> if (v6.6)
>> do()
>> else if (test_flags())
>> do()
> 
> Daniel Vetter asked for specific kernel versions in b603e810f740
> ("drm/uapi: document kernel capabilities"). It allows user-space to
> figure out how widespread a cap is.

Well, OK then... :)


-- 
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstrasse 146, 90461 Nuernberg, Germany
GF: Ivo Totev, Andrew Myers, Andrew McDonald, Boudien Moerman
HRB 36809 (AG Nuernberg)
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