PCI: Document pci_ids.h addition policy.
PCI: Document pci_ids.h addition policy.

IDs should generally only be added to pci_ids.h when they're shared
across several files in the tree.  IDs that are just used by a single
driver should be defined in the driver instead.

Perhaps documenting this is a good idea to prevent things being moved there,
as it still seems to be happening judging from the git log.

(based on discussion w/gregkh and others).

Acked-by: Greg Kroah-Hartman <4645f7897fd33786a2ee1264d590b3c400559d85@suse.de>
Signed-off-by: Dave Jones <d5ec0d24602845f6f4b6a35ef729998d1fba5507@redhat.com>
Signed-off-by: Jesse Barnes <bc7add126c2dbb8382bf1c28ac262b9363a32706@virtuousgeek.org>

TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs