[PATCH libdrm] Export drmCompareDevices

[Eric Anholt]

Adam Jackson <ajax at redhat.com> writes:

> drmCompareBusInfo was almost this already, but it wasn't exported, its
> name didn't match its functionality, and while it almost looks like it
> was usable for sorting due to memcmp it wouldn't work if you had
> multiple bus types. I don't really want to think about defining a
> sensible sort order for bus types, so let's at least make it less of a
> trap for the caller.
>
> Invert its boolean sense to be 'true if equal', rename it to describe
> the type it actually operates on, and export.

I love flipping the comparison, but my only request would be to name it
drmDevicesEqual() instead, as Compare sounds a bit like memcmp() to me.
With that changed,

Reviewed-by: Eric Anholt <eric at anholt.net>
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