[PATCH v2 2/7] Documentation/devices.txt: Mark /dev/oldmem obsolete

H. Peter Anvin hpa at zytor.com
Tue May 28 13:35:23 EDT 2013

On 05/28/2013 10:26 AM, Rob Landley wrote:
>> So, could I just use UNSED to replace OBSOLETE here? Or use
> Obsolete is fine.
> Obsolete means it was used at some point, and thus reusing it might
> confuse or conflcit with legacy software. Unused could just mean that we
> left a gap for some reason, it doesn't imply it ever was used.
> Explicitly documenting "unused" is kind of silly: all the ones we
> _don't_ document are presumably unused. Obsolete carries with it a very
> mild warning about legacy software, which is presumably why we still
> bother to mention it at all instead of just removing the entry.
> (Then again the point was that nothing ever used this interface in the
> first place. Personally I'd just have removed the entry...)

"Obsolete" in this specific context means that the reservation is
obsolete, but was used in kernels past, therefore the name and number
should not be reused to prevent old software from misbehaving.


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