This patch makes lp and ppdev do the Right Thing regarding O_NONBLOCK.

2002-01-04  Tim Waugh  <twaugh@redhat.com>

	* include/linux/parport.h: Define a special inactivity timeout
	meaning 'caller wants to use O_NONBLOCK'.
	* drivers/char/lp.c: Support O_NONBLOCK properly.
	* drivers/char/ppdev.c: Likewise.
	* drivers/parport/parport_pc.c: Likewise.
	* drivers/parport/ChangeLog: Updated.

This patch makes lp quieter in the common case that a printer does
_not_ speak ECP. (People have been writing to me worried that the
message means something bad.)

2002-02-26  Tim Waugh  <twaugh@redhat.com>

	* drivers/char/lp.c: Be quiet.

This patch fixes a problem with parport that shows up when interrupts
are specified.  I sent this to Marcelo for 2.4.19-pre2 a short time
ago.

2002-02-25  Tim Waugh  <twaugh@redhat.com>

	* drivers/parport/parport_pc.c: Fix a bug spotted by Mikael
	Pettersson.
	* drivers/parport/ChangeLog: Updated.

Most importantly this patch is making ide.c use the
new automagic for module initialization lists and further
preparing the rest of the code in question here for proper
module separation. Despite this the CMOS probe has been removed
as well... *Iff*, which I don't expect, this breaks anything
it can be reintroduced easely. During this effort an actual bug
in the initialization of the main module has been uncovered as well.
a quite serious BUG has been tagged in ide-scsi.c as well, but
as far as now I just didn't get along to actually fixing it.
(The patch is big enough as it is).

Details follow:

- Kill *unused* ide_media_verbose() funciton.

- Remove the unnecessary media and supports_dma fields from
    ide_driver_t.

- Remove the global name field from ide_driver_t struct by pushing it
    down to the places where it's actually used.

- Remove the unused hwif_data field from ide_hwif_t.

- Push the supports_dsc_overlap condition up to the level where it
    belongs: disk type as well.

- Make the initialization of ide main ide.c work with the new module
    initialization auto-magic instead of calling it explicitly in
    ll_rw_block.c This prevents the ide_init() from being called twice. We
    have BTW. renamed it to ata_module_init(), since  ata is more adequate
    then ide and xxx_module_init corresponds better to the naming
    conventions used elsewhere throughout the kernel.

    This BUG was there before any ide-clean.  It was worked around by a
    magic variable preventing the second call to succeed.  We have removed
    this variable in one of the previous patches and thus uncovered it.

- Kill proc_ide_read_driver() and proc_ide_write_driver(). The drivers
    already report on syslog which drives they have taken care of.  (Or
    at least they should). In esp. the proc_ide_write_driver() was just
    too offending for me.  Beleve it or not the purpose of it was to
    *request a particular* driver for a device, by echoing some magic
    values to a magic file...
    More importantly this "back door" was getting in the way of a properly
    done modularization of the IDE stuff.

- Made some not externally used functions static or not EXPORT-ed.

- Provide the start of a proper modularization between the main module
    and drivers for particular device types. Changing the name-space
    polluting DRIVER() macro to ata_ops() showed how inconsistently the
    busy (read: module  busy!) field from ide_driver_t
    is currently used across the    different device type modules.
    This has to be fixed soon.

- Make the ide code use the similar device type ID numbers as the SCSI
    code :-).  This is just tedious, but it will help in a distant
    feature. It helps reading the code anyway.

- Mark repettitive code with /* ATA-PATTERN */ comments for later
    consolidation at places where we did came across it.

- Various comments and notes added where some explanations was missing.

This is finally moving the ide-pci.c file into a shape where
the host chip detection lists can finally be moved to where they
belong - into the particular chipset specific files.

This is accomplished, by a rather obivous removal of macro magic,
which was just making entries to the global device type
list nonfunctional, instead of making them conditional on the
corresponding CONFIG_BLHA options.

The second thing was to add a flag field to the device recognition
list, which made it possible to compress many of the
multi || chip id conditionals go away.

The only other file affected is ide.h - here is the change in the size
of the name field, which apparently slipped through ide-clean-12...

1. Add some notes to Documentation/driver-model.txt about how and
     and where to mount the driverfs.

2. Reorganize and prepare the PCI scanning code for proper device
dependant splitup. Basically tedious cleanup of macro games.

3. Use struct pci_dev name field as the name of PCI host dapaters
instead of invention ambigious IDE special names. This makes
the kernel bootup messages look a bit shifted, since those names are bit
longer, but makes up for consistance and should allow one later
to rearage things to fit into the generic PCI device initialization
mechanisms provided by the kernel.

4. Set 3. Allowed us to make the host chip specific
pci_init_xxx class functions have the proper signature of
module initializers. This will make it possible to make true
modules out of them later.

5. Make some functions in cmd64x.c static which where not used
elsewhere.

6. rename ide_special_settings to trust_pci_irq - this is reflecting
it's functionality better. And make it match the pci device vendor
as well as the device ID. It was a BUG to match only the device id!.

7. Make the chanell setup more tollerant for BIOS-es which don't
report IO and MEM bases properly. The code found previously there
tryed but was inconsistant.

8. Start to use proper terminology in ide-pci.c: host chip, channel,
drive instead of hwif, port, drive...

9. Enlarge the name field from ide_hwif_t to 64 bytes. It was only 6
previously and there where custom names there which where exceeding
this!!! But since we use the proper pci devce name there now instead,
we had to extend the size of this field anyway.

10. Add some explanatory comments and fix misguiding comments here and
there.

11. Kill the proc_ide_write_config and proc_ide_read_config brain
damage! Those where backdoors to the pci configuration registers on PCI
devices and IO registers on directly connected ISA ATA controllers.
They didn't discrement between them!

Access to both of them *simply* doesn't belong into an operating system,
which is supposed to abstract out the access to hardware! Did I mention
that access to both can be done from user land without an IDE special
interface! Any program which was using them (I hardly beleve there is
one) just deserves to loose. The programmer responsible for it
deserves to be fired immediately.

12. Move ide_map_xx and ide_unmap_xx tinny bio level wrappers away
from the "global" ide.h to where those are actually used and kill
trivial wrappers for otherwise generic bio_ routines. Just fighting
code obfuscation. The "rq->bio is used or is not there" brain
damage in ide-taskfile.c has to be fixed later. Possibly by killing
ide-taskfile.c alltogether, becouse this should be a driver for
users and not a driver for ATA disk disaster recovery companys...

13. Kill hwif->pci_devid and hwif->pci_venid. Just use the already
present hwif->pci_dev field instead.

14. Kill unused big switch ide_reinit_drive function. This silly
functon was switching upon every possible device driver cathegory
and calling the correspondng reinit function directly. This
idiocy was fortunately not used.

That's all... Most will be clear if one starts looking at the changes
in ide.h of course...

In contrast to the previous patches this one is actually fixing two
serious bugs.


The next direct step will be to kill the sigle place global PCI device
type recognition list from ide-pci.c by pushing the entries to where
they belong -> the host chips setup modules.

1. Start of driver tree usage upon suggestion from Pavel Machek.
     This still will needs a lot of further work in the future, but
     the current code doesn't hurt anything and allowa Pavel to work
     further from the base line. In esp. natively implemented
      suspend to file requires this - which I would love to see comming
     in,since I'm quite frequently using a notebook myself.

2. Kill the _IDE_C macro, which was playing games on entierly
     unnecessary declarations inside of header files in esp ide_modes.h

3. Replace the functionally totally equal system_bus_block() and
     ide_system_bus_speed() functions with one simple global
     variable: system_bus_speed. This saves quite a significatn amount of
     code. Unfortunately this is the part, which is makeing this
     patch to appear bigger then it really is...

4. Use ide_devalidate_drive() directly instead of idedisk_revalidate().

5. Kill conditional CONFIG_KMOD as well as some other minor tweaks.

Well this isn't that much in terms of functionality,  but it took me
quite q bit of time to catch up on the patch-2.5.5.gz ;-)

This is finishing the cleanup parts already started in ide-clean-9.

It kills the ide_register_module() and ide_unregister_module() as well
as associated idiosyncracies alltogether. It turns out
that this patch is actually fixing a bug which was present in the
driver before: the sub-module initialization functions where called
at least twice - which is an abundance.

Tough there is a bit of global namespace pollution caused by this
patch - but I'm aware of it and will fix it just a bit later.
(The terminology used inside the IDE code is anyway nothing common
else in the linux universum...)

The next targets will be:

1. Code obfuscation by "wrappers" around generic BIO level functions.

2. ide_hwgroup_t - which is only used to serialize multiple
discs on the same interrupt and similar. This is however a tough one.

3. There is a plenty of code waste in the chipset drivers, where there
is baroque informative code for the proc file system for static stuff,
which in fact belongs just to syslog(). In fact the default RedHat
distribution kernel is killing this gratitious abuse of the /proc
concept since a long long time...

I'm still awaiting the day of /proc/GPL, where GPL contains the
full text of it...

go ahead and free the inodes too, don't try to age them any
more (the aging has been done on a dentry level).

into penguin.transmeta.com:/home/penguin/torvalds/repositories/kernel/linux

into penguin.transmeta.com:/home/penguin/torvalds/repositories/kernel/linux

CONFIG_SERIAL_TX3912_CONSOLE, CONFIG_AU1000_SERIAL_CONSOLE,
CONFIG_AU1000_UART, CONFIG_EUROTECH_WDT to drivers/char/Config.help.

from e1000 net driver.

that accidentally crept back into driver.

into mandrakesoft.com:/spare/repo/net-drivers-2.5

into mandrakesoft.com:/spare/repo/misc-2.5

hardware limits) to the 8139cp net driver.

	- removed all usage of port->sem as the usb serial core now does this.

	- reworked urb handling, getting rid of lots of code now that we have
	  proper urb reference counting.
	- removed port locks as the usb-serial core now does this.
	- added support for the Palm m515 thanks to SilaS

	- cleaned up some whitespace issues
	- changed MOD_INC logic for the generic driver
	- the port->sem lock is now taken by the serial core, not the individual
	  usb-serial drivers.  This is to reduce races.

  	Added support for the HP Jornada.

Basically, the patch turns switching off FSBR into a lazy operation with
the assumption there will be another transfer shortly afterwards. This
works wonders for usb-storage for instance.

  
    - Moves 8 functions from usb.[hc] to hcd.[hc]
    - Also moves some data structures and types
    - Now usbdevfs and "old" HCDs #include "hcd.h"
    - Minor tweaks to the "hcd" layer (one less FIXME)
    - Minor kernel doc and comment cleanups
  
Basically this continues moving the HCD-only functionality
out of the way of normal USB device drivers.  Converging
"usb_bus" and "usb_hcd" (later!) will be a bit easier too.

I did basic sanity tests, there's little to break ... :)
  
There are still a few functions in usb.c that aren't for
general driver use.  They're mostly for enumeration,
in areas where the hub driver and HCD root hubs
need to do various kinds of magic.  It wasn't clear
how to decouple those, they can certainly wait.

  
This fixes a bug in the audio driver which came from an
incorrect conversion from static to dynamic URB allocation.
It's against 2.5.5
  
I noticed this while trying to see exactly how ISO transfers
get used.  The bug is that while originally the driver statically
allocated several structures {urb + N * iso packet descriptors},
the update forgot to allocate the ISO descriptors.
    
Likely not many folk noticed this on 32 bit machines, where
sizeof urb == 92, because kmalloc rounds that up to 128,
adding 36 bytes of external padding.  The ISO descriptors
took up 32 bytes of that, which "just happened" to already
have been allocated but unused.

  
This is minor cleanup; pulls #includes out of files
that aren't intended to compile by themselves.

ehci bandwidth recording
  
Here's a minor update to the EHCI interrupt scheduler,
recording the bandwidth used by an URB for usbfs.

  
This restores a line someone deleted, which
affects hotplugging.  Basically this restores
correct/previous behavior:  the HID driver only
matches HID devices, not every device that
ever connects.

	- changed the minor number the auerswald driver was using, as it was found
	  out that this number was already in use by another USB driver!

Written by Irene Zubarev, Tong Yu, Jyoti Shah, Chuck Cole, and me.

	- changed proc entry creation to use the proper parent directory variable.

	- pcihpfs cleanup, removing unneeded file operations.
	- Added facility to have the files change their timestamps if the data
	  within the file changes.

into penguin.transmeta.com:/home/penguin/torvalds/repositories/kernel/linux

This patch allows my qlogic pcmcia scsi card to compile again, as broken
by the recent scsi layer changes. 

Despite davem's apparent suggestion that it'd be better to rewrite the
driver, i'd rather not _just_ right now :)

	/ Brett Pemberton

Numerous bugfixes brought forward from 2.4. I added some quick bio fixes
to mtdblock.c, which seemed to work for me whilst testing JFFS2 changes.

Forward ports from 2.4, Various janitor bits, and some fixes by me to
make the thing work again in 2.5.  I munged the MTDRAM driver to work
also (seperate patch to follow), and it seems to work.

David Woodhouse gave this the once over, and approved the changes.
Complete changelog below:

o   Don't create two slabcaches with the same name.
o   Don't corrupt eraseblock lists on mount
o   Don't mark nodes obsolete during mount
o   __attribute__((packed)) on the node definitions.
o   Fix up() without down() in jffs2_readdir().
o   Fix duplicate version number usage - s/highest_version++/++highest_version/
o   Fix (i.e. implement) mtime/ctime on directories.
    maybe too busy with the bk stuff
o   Don't allow hardlinks of directories.
o   s/(mode&S_IFMT)==S_IFLNK/S_ISLNK(mode)/ et al to keep Al happy.
o   Fix for garbage-collection of holes, where we used to write nodes out
    with csize/dsize swapped. Workarounds for existing such brokenness.
o   Improve wear levelling by rotating node lists on mount, to avoid starting
     at one end of the flash every time.
o   Remember to get internal inode-semaphore on symlink operations.

Enable NFS over TCP via config option