Lots of architectures have atomic_add_return() and no atomic_add_negative().

We can implement the latter in terms of the former.

I'm about to change the meaning (and name) of page->count.  Go through and fix
up all those places which are open-coding references to it.

into redhat.com:/spare/repo/net-drivers-2.6

into ppc970.osdl.org:/home/torvalds/v2.6/linux

into ppc970.osdl.org:/home/torvalds/v2.6/linux

into ppc970.osdl.org:/home/torvalds/v2.6/linux

into kroah.com:/home/greg/linux/BK/driver-2.6

into kroah.com:/home/greg/linux/BK/i2c-2.6

Forgot to include this with my original patch a few weeks ago...

Jean Delvare <khali@linux-fr.org> writes:
> So I'd suggest that you simply use the standard exit sequence in the
> it87 driver (the second one in your current patch). A patch for the 2.4
> driver would be appreciated as well.

OK.  I've attached a new version of the patch against linux-2.6.6.
I'll send a patch against current lm_sensors CVS removing the extra
exit command in a separate mail.

Greg KH <greg@kroah.com> writes:
> On Wed, May 12, 2004 at 04:38:03PM +0200, Bj?rn Mork wrote:
>> +	if (!it87_find(&addr)) {
>> +		printk("it87.o: new ISA address: 0x%04x\n", addr);
>
> That printk is wrong (no KERN_ level, or dev_printk() style use).
> Please fix it in your next revision of this patch.

Errh, I just added it to document my sloppyness.  It was never meant
to be in the patch I sent you.  Sorry.  Removed in the attached patch.
The style of these drivers seem to be "just working, making no noise"
so I assume informational printk's are unwanted.

This patch adds DID support for ICH6 and 6300ESB to i2c-i801.c(SMBus).
In order to add this support I needed to patch pci_ids.h with the SMBus
DID's.  To keep things orginized I renumbered the ICH6 and ESB entries
in pci_ids.h.  I then patched the piix IDE and i810 audio drivers to
reflect the updated #define's.  I also removed an error from irq.c;
there was a reference to a 6300ESB DID that does not exist.

into ppc970.osdl.org:/home/torvalds/v2.6/linux

I needed this to get an APM + UHCI config to behave on resume.
Applies against your BK of last night ... OHCI and EHCI do
some of this manually, they could be simplified later.

o The following patch cleans up sysfs_rename_dir(). It now checks the
  return code of kobject_set_name() and propagates the error code to its
  callers. Because of this there are changes in the following two APIs. Both
  return int instead of void.

int sysfs_rename_dir(struct kobject * kobj, const char *new_name)
int kobject_rename(struct kobject * kobj, char *new_name)

[note, I changed this a bit to be nicer on the system log, greg k-h]

Prakash K. Cheemplavam wrote:
> David Brownell wrote:
>
>>> There appear lines like

> >>> usb usb2: string descriptor 0 read error: -108

>>> bug or feature? They weren't there with 2.6.6-mm1. I have no usb2.0
>>> stuff to actually test. My usb1 stuff seems to work though.
>>
>> Bug; minor, since the only real symptom seems to be messages like
>> that.  Ignore them for now, I'll make a patch soonish.
>
> Ok, good. Thanks for the explanation of what is going on, though I don't
> can make too much out of it. ;-)

The short version is:  it's missing this patch.

It also could hide real bugs, and that's not good.  And the name
implies that a reference is grabbed, and that's not true at all.

If this is hiding real problems, we need to find them.

Pretty useless stuff.  If this was hiding anything real, we need to find out.

Following patch merges the support for Keyspan UPR-112 USB serial adapter
from 2.4 to 2.6.

Also fix up some of the other printk() calls to be dev_* calls.

"Matt H." <lkml@lpbproductions.com> wrote:
>
> Just attempted to compile 2.6.6-mm2 and got this error
>
>    CC [M]  drivers/usb/core/driverfs.o
>    CC [M]  drivers/usb/core/hcd-pci.o
>    LD [M]  drivers/usb/core/usbcore.o
>    LD      drivers/usb/host/built-in.o
>    CC [M]  drivers/usb/host/ehci-hcd.o
>    CC [M]  drivers/usb/host/ohci-hcd.o
>  In file included from drivers/usb/host/ohci-hcd.c:129:
>  drivers/usb/host/ohci-hub.c: In function `ohci_rh_resume':
>  drivers/usb/host/ohci-hub.c:313: error: `hcd' undeclared (first use in this
>  function)

hm, not sure what's happened there...

On Thu, 13 May 2004, Duncan Sands wrote:

> No, but the pointer for another (previous) interface may just have been
> set to NULL, causing an Oops when usb_ifnum_to_if loops over all
> interfaces.

Of course!  I trust you won't mind me changing your suggested fix
slightly.  This should do an equally good job of repairing things, and it
will prevent other possible invalid references as well.

> I went ahead and created a patch to change all the places where devio.c
> uses an interface index.  Now it always uses just the interface number.
> Does this look all right to you?  I don't have a convenient way to test
> it.

Hi Alan, thanks for doing this.  It looks and works OK.  I added some name
changes: all struct usb_interface pointers are now called intf; and, when
reasonable, variables holding interface numbers are now all called ifnum.
This drowns your original changes in a sea of churning names, I hope you
don't mind.

This patch should help correct the "missing diagnostics with
CONFIG_USB_DEBUG during CDC Ethernet probe()" issue.  Some
folk are having problems with firmware that doesn't respond
properly to descriptor fetches -- which is unnecessarily
confusing because the diagnostics aren't being printed.

into kroah.com:/home/greg/linux/BK/usb-2.6

The following patch fixes the race involved between unregistering a kobject
and simultaneously opeing a corresponding attribute file in sysfs.

Ideally sysfs should take a ref.  to the kobject as long as it has dentries
referring to the kobjects, but because of current limitations in
module/kobject ref counting, sysfs's pinning of kobject leads to
hang/delays in rmmod of certain modules.  The patch checks for unhashed
dentries in check_perm() while opening a sysfs file.  If the dentry is
still hashed then it goes ahead and takes the ref to kobject.  This done
under the per dentry lock.  It does this in the inline routine
sysfs_get_kobject(dentry).

1) kobject_set_name-cleanup-01.patch

This patch corrects the following by checking the reutrn code from
kobject_set_name().

bus_add_driver()
bus_register()
sys_dev_register()



o The following patch cleansup the kobject_set_name() users. Basically checking
  return code from kobject_set_name(). There can be error returns like -ENOMEM
  or -EFAULT from kobject_set_name() if the name length exceeds KOBJ_NAME_LEN.

This patch goes on top of the previous two, and the hcd-0506 patch:

  - Moves root hub suspend/resume code out of PCI-specific bus glue
    into generic hub code.  That way it's easy to re-use it even
    for non-PCI implementations like SA1111, OMAP, and LH7A404.
    (Plus, given CONFIG_USB_SUSPEND, it can be invoked with sysfs.)

  - Root hub suspend is a lot more careful, as is root hub resume.
    Pending transactions are now shut down more consistently; and
    more registers are re-initialized on resume.

  - The PCI bus glue is now left with truly generic PCI stuff, plus
    some PMAC-specific stuff (which doesn't include irq disabling
    any more, hcd-0506 moves that up a level in the stack).

  - Remote wakeup support is basically working for the root hub.
    (given CONFIG_USB_SUSPEND to suspend devices and enable it).

  - Idle HCs will now automatically suspend themselves, and resume
    as necessary.  This saves a certain amount of power on most
    systems, and matches what UHCI has been doing for a while.

The large size of this patch is mostly because of moving that
root hub suspend/resume code out of the PCI-specific glue.

This goes with the OHCI anti-deadlock patch, and is what
ensures that when a root hub loses power during suspend,
khubd can turn port power back on so devices can enumerate.

This splits out a few obvious fixes, to help shrink a PM patch:

  - when the HC is quiescing, don't schedule any more EDs
    or re-activate any after unlink completion.

  - when the HC is suspended, don't access registers through
    sysfs either.

  - simplify locking and call for donelist processing