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SubjectRe: [Dri-devel] DRM patch for Linux 2.4.0-prerelease

It looks like this patch goes further than syncing with xfree 4.0.2, but syncs
with the dri trunk instead. There has been a version bump in the mga drm
module on the dri trunk to add a 'blit' ioctl. XFree 4.0.2 will barf on this.

As a broader question: All our version checking (in client drivers and DDX
drivers) check

found major == expected major
found minor == expected minor
found patch >= expected patch

and if they don't receive this, they refuse to play.

As I understood it, the major number is bumped on backwards-incompatible
changes, the minor number on backwards-compatible changes and the patch on all
other changes, though in practise never.

Thus, wouldn't the appropriate test be:

found major == expected major
found minor >= expected minor
(no test on patch)

This seems to match the semantics of the 3 numbers better?

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