There should be no functionality change resulting from this patch.
Suggested-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: NBorislav Petkov <petkovbb@gmail.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

and more specifically, push __func__ into debug
macro thus making ide_debug_log() calls shorter and more readable.
Signed-off-by: NBorislav Petkov <petkovbb@gmail.com>

* Use elv_add_request() instead of __elv_add_request() in ide_do_drive_cmd().

* ide_do_drive_cmd() is used only in ide-{atapi,cd}.c so inline it there.

There should be no functional changes caused by this patch.
Acked-by: NSergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

During host driver module removal del_gendisk() results in a final
put on drive->gendev and freeing the drive by drive_release_dev().

Convert device drivers from using struct kref to use struct device
so device driver's object holds reference on ->gendev and prevents
drive from prematurely going away.

Also fix ->remove methods to not erroneously drop reference on a
host driver by using only put_device() instead of ide*_put().
Reported-by: NStanislaw Gruszka <stf_xl@wp.pl>
Tested-by: NStanislaw Gruszka <stf_xl@wp.pl>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Just copy the comment from drivers/scsi/sr.c::sr_done()
(from which the capacity hack has been originated).

Cc: Borislav Petkov <petkovbb@gmail.com>
Acked-by: NSergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

This one fixes http://bugzilla.kernel.org/show_bug.cgi?id=12320.
Signed-off-by: NBorislav Petkov <petkovbb@gmail.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

... and remove no longer needed cdrom_start_packet_command and
cdrom_transfer_packet_command.

Tested lightly with ide-cd and ide-floppy.
Signed-off-by: NBorislav Petkov <petkovbb@gmail.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

as it is done for all other IDE ATAPI devices.

There should be no functionality change resulting from this patch.
Signed-off-by: NBorislav Petkov <petkovbb@gmail.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

... instead of assuming it is set for accelerated DRQ type devices.
Signed-off-by: NBorislav Petkov <petkovbb@gmail.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

* Remove (now superfluous) ->error method from struct ide_driver.

* Unexport __ide_error() and make it static.
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

While at it:
- s/struct ide_driver_s/struct ide_driver/
- use to_ide_driver() macro in ide-proc.c
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

* Merge ide_hwgroup_t with ide_hwif_t.

* Cleanup init_irq() accordingly, then remove no longer needed
  ide_remove_port_from_hwgroup() and ide_ports[].

* Remove now unused HWGROUP() macro.

While at it:

* ide_dump_ata_error() fixups

v2:
* Fix ->quirk_list check in do_ide_request()
  (s/hwif->cur_dev/prev_port->cur_dev).
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Remove cdrom_do_newpc_cont and cdrom_start_rw_cont wrappers and pass
cdrom_transfer_packet_command to ide_execute_command directly.

There should be no functionality change resulting from this patch.
Signed-off-by: NBorislav Petkov <petkovbb@gmail.com>
[bart: don't move cdrom_start_packet_command() around, remove newlines]
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

There should be no functionality change resulting from this patch.
Signed-off-by: NBorislav Petkov <petkovbb@gmail.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

- cdrom_timer_expiry -> ide_cd_expiry
- remove expiry-arg to ide_issue_pc as it is redundant now
- ide_debug_log -> debug_log
Signed-off-by: NBorislav Petkov <petkovbb@gmail.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

... by factoring it out of ide_cd_do_request() into a helper, as suggested by
Bart.

There should be no functionality change resulting from this patch.
Signed-off-by: NBorislav Petkov <petkovbb@gmail.com>
[bart: BLK_DEV_IDECD needs to select IDE_ATAPI now]
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

While at it:
- disable compiling-in debug support by default
Signed-off-by: NBorislav Petkov <petkovbb@gmail.com>
[bart: fixup patch description]
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

dsc_overlap setting is not useful anymore for ide-cd so remove
"dsc_overlap" /proc setting, disallow changing the setting through
HDIO_SET_NICE ioctl and cleanup ide_cd{rom_setup,_release}().

Cc: Borislav Petkov <petkovbb@googlemail.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

It doesn't make much sense nowadays and is problematic on some drives.

Cc: Borislav Petkov <petkovbb@googlemail.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

This is just a preparation for future changes and there should be no
functional changes caused by this patch since ide_lock is currently
also used as queue lock.
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Use blk_end_request() instead of ide_lock + __blk_end_request()
in cdrom_end_request(), cdrom_newpc_intr(), __ide_end_request(),
ide_complete_pm_request() and ide_end_drive_cmd().

[ ide_lock is currently also used as queue lock ]
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

While at it:
- no need to check for hwgroup presence in ide_dump_opcode()
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

e5318b53 ("ide: use the dma safe check for
REQ_TYPE_ATA_PC") introduced a regression which caused some ATAPI drives to
turn off DMA for REQ_TYPE_BLOCK_PC commands while burning and thus degrading
performance and ultimately causing an excessive amount of underruns.

The issue is documented also in:
http://bugzilla.kernel.org/show_bug.cgi?id=11742.
Signed-off-by: NBorislav Petkov <petkovbb@gmail.com>
Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Tested-by: NValerio Passini <valerio.passini@unicam.it>
[bart: fixup patch description per comments from Sergei Shtylyov]
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

The "TEAC CD-ROM CD-224E" cannot close its tray, so add it to the NO_AUTOCLOSE
list. This will correct the "Can close tray" field of /proc/sys/dev/cdrom/info.
Signed-off-by: NMárton Németh <nm127@freemail.hu>
Acked-by: NBorislav Petkov <petkovbb@gmail.com>
[bart: minor fixups to patch description]
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

To keep the size of changesets sane we split the switch by drivers;
to keep the damn thing bisectable we do the following:
	1) rename the affected methods, add ones with correct
prototypes, make (few) callers handle both.  That's this changeset.
	2) for each driver convert to new methods.  *ALL* drivers
are converted in this series.
	3) kill the old (renamed) methods.

Note that it _is_ a flagday; all in-tree drivers are converted and by the
end of this series no trace of old methods remain.  The only reason why
we do that this way is to keep the damn thing bisectable and allow per-driver
debugging if anything goes wrong.

New methods:
	open(bdev, mode)
	release(disk, mode)
	ioctl(bdev, mode, cmd, arg)		/* Called without BKL */
	compat_ioctl(bdev, mode, cmd, arg)
	locked_ioctl(bdev, mode, cmd, arg)	/* Called with BKL, legacy */
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

... convert to it in callers
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

Signed-off-by: NBorislav Petkov <petkovbb@gmail.com>
[bart: split-up this change from a bigger patch]
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Signed-off-by: NBorislav Petkov <petkovbb@gmail.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Add some more verbosity to key function calls in ide-cd debug code. While at it,
delete a superfluous comment.
Signed-off-by: NBorislav Petkov <petkovbb@gmail.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Turn ide_driver_t's 'proc' field into ->proc_entries method
(and also 'settings' field into ->proc_devsets method).  Then
update all device drivers accordingly.

There should be no functional changes caused by this patch.
Acked-by: NBorislav Petkov <petkovbb@gmail.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Just use IDE_DFLAG_DOORLOCKING instead.

There should be no functional changes caused by this patch.
Acked-by: NBorislav Petkov <petkovbb@gmail.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

There should be no functional changes caused by this patch.
Acked-by: NBorislav Petkov <petkovbb@gmail.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Signed-off-by: NAlexander Beregalov <a.beregalov@gmail.com>
Cc: Borislav Petkov <petkovbb@googlemail.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

There should be no functionality change resulting from this patch.
Signed-off-by: NBorislav Petkov <petkovbb@gmail.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Signed-off-by: NBorislav Petkov <petkovbb@gmail.com>
[bart: no need to zero debug_mask + move it next to module_param()]
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Also,

- leave in the possibility for optimizing away all debugging macros
- add a PFX macro and prepend all printk calls with it for consistency
- add debug macro calls in important driver paths
- remove #if 0-ed code
- mv restore_request -> ide_cd_restore_request
- add a driver registration printk

v2:
failed_command can be NULL so check it before accessing it

v3:
fix another NULL ptr in debug statement

There should be no functionality change resulting from this patch.
Signed-off-by: NBorislav Petkov <petkovbb@gmail.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Cc: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Set IDE_AFLAG_DRQ_INTERRUPT in do_identify() instead of ATAPI
device drivers *_setup() methods.

While at it:
- use ata_id_cdb_intr()

There should be no functional changes caused by this patch.

Cc: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>