This is an update to the EISA/sysfs code :

 - Separate bus root code from generic code.
 - Add driver for PCI/EISA bridge.
 - Hacked parisc eisa driver so it can act as a root device.
 - Add driver for so-called virtual root (for bridge-less systems).
 - Allow multiple roots.
 - Moved quirk_eisa_bridge from alpha to generic code, since
   the EISA code needs it now (on x86, for example...).
 - 3c59x :
   Prevent driver from returning ENODEV in case it has registered with
   the EISA framework, but no device has been found yet (it happends
   when the driver is built into the kernel, and the EISA bus root has
   not been discovered yet).

It's been discussed on lkml, and all suggestions (mainly from Ivan
Kokshaysky <ink@jurassic.park.msu.ru>) have been taken into account.