I have just compiled the radeon driver against 2.5.74, patch attached, and I was 
wondering about
polices concerning things like #if LINUX_VERSION_CODE and how other drivers will work, 
ect.

  I would be more than happy to start working on this, if there is a demand.  My work 
would manly
consist of the ?most popular? | used drivers /w kernels 2.5.69 and up.  If there is a 
need or
demand to expand this work I'd be happy to, as long as there was some around to test, 
and reap the
benefits.  as I don't see the point in making DRM work with kernels that no one will 
use for more
than just the time to test that it works.  I will test compile my code vs 2.5.69, and 
actually run
apps(radeon only) against 79 and up.  All the #if will START ought being 
LINUX_VERSION_CODE <=
KERNEL_VERSION(2,5,69), and will be change accordingly(by users response and personal 
findings). 
If users do start reporting success/failures for earlier versions the work at that 
time can be
expanded.

I.E.  Lets say that I or we do get all the drivers to compile and run for 2.5.12.  
Glxgears would
probably be the only app we would have time to test, I doubt there would be any 
testing it would
take a long time to test all 74 kernels.  It would all be for nothing if A user starts 
using our
code just to find we STILL need to fix it.  If we get bug reports that's different, it 
means that
ppl are actually testing/using our code.

Question:
  I had just finnesed patching the radeon code.  One thing struck me as odd, I had to 
change all
the agp_memory types to struct agp_memory.  I was wondering if maby there could be a 
reason when
that was changed there was not just a typdef for the old way, or is it just plain 
forgetfullness. 
Any way at this point it seams like it's a problem we have to handel in our code, 
better
LINUX_VERSION_CODE <= KERNEL_VERSION(2,5,x) then KERNEL_VERSION(2,5,x) <=  
LINUX_VERSION_CODE <=
KERNEL_VERSION(2,5,y). right?


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