Just updated the raspberry Pi to kernel 3.8.2, by applying the incremental patch at:
ftp://ftp.kernel.org/pub/linux/kernel/v3.0/incr/patch-3.8.1-2.bz2
– which worked fine..

Fedora release 18 (Spherical Cow)
Kernel 3.8.2-pi on an armv6l (ttyAMA0)
…………………
# uname -a
Linux rgpi 3.8.2-pi #1 Mon Mar 4 12:23:25 GMT 2013 armv6l armv6l armv6l GNU/Linux

I tried applying the kernel.org 3.9-rc1 patch to the (hacked) 3.8.0 Pi base, and the patch applied cleanly, but the compile failed..   So — more hacking is obviously required!    As this will (effectively) be a hack on a hack on an old fork, it would be nice to see an ‘official’ branch of the Pi kernel code on GitHub, soon!

Robert Gadsdon.  March 4th, 2013.