Re: [stable] Wanted: Allow adding new device IDs during the -stable cycle
- From: Greg KH <greg@xxxxxxxxx>
- Date: Tue, 22 May 2007 11:47:33 -0700
On Tue, May 22, 2007 at 02:14:44PM -0400, Chuck Ebbert wrote:
I'd like to propose we allow adding new device IDs as part
of the -stable process, but only under certain conditions:
Who would be the primary benifactor of this?
The very large majority of users out there use a distro kernel, and they
provide the ids whenever possible as patches to their kernels, _or_ as a
config option at startup that adds the ids to the drivers through sysfs.
1) Each device (or group of devices) gets added as a separate
patch, i.e. we don't just diff the device tables. This way
each original patch that added the device(s) upstream will
be become a single patch for -stable.
2) Devices that require new features/capabilities in their
driver won't be added.
What's wrong with the current sysfs way of adding new device ids without
touching the kernel? Devices described above was the very reason we
added that functionality, so users would not have to constantly update
their kernel. The distros provide userspace tools that enable these ids
to be added and at boot time, everything "just works" properly.
So, because of that, I don't really see a need to be adding new device
ids to the -stable tree.
Candidate patches would be something like these, which together
add support for the ATI SB700 ATA controller:
1)
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=823777181b4c0200923dcb026efa5b37f55c0ecf
Adds ATI sb700 quirk, using exactly the same one as sb600.
That's a quirk addition, not a new device id following the above
mentioned rules you set out :)
thanks,
greg k-h
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