| Commit message (Collapse) | Author | Age | Files | Lines |
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Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> writes:
> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
> ---
> drivers/ide/ide-probe.c | 9 ++-------
> 1 file changed, 2 insertions(+), 7 deletions(-)
>
> Index: b/drivers/ide/ide-probe.c
> ===================================================================
> --- a/drivers/ide/ide-probe.c
> +++ b/drivers/ide/ide-probe.c
> @@ -640,14 +640,9 @@ static int ide_register_port(ide_hwif_t
> /* register with global device tree */
> dev_set_name(&hwif->gendev, hwif->name);
> hwif->gendev.driver_data = hwif;
> - if (hwif->gendev.parent == NULL) {
> - if (hwif->dev)
> - hwif->gendev.parent = hwif->dev;
> - else
> - /* Would like to do = &device_legacy */
> - hwif->gendev.parent = NULL;
> - }
> + hwif->gendev.parent = hwif->dev;
This [bart: commit 96d40941236722777c259775640b8880b7dc6f33 ("ide: small
ide_register_port() cleanup")] breaks ide-pmac. It overwrites the parent
that pmac_ide_macio_attach has set.
Signed-off-by: Andreas Schwab <schwab@suse.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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commit 54cc1428cfa619e16d75baae8cb041a2eff015f0 ("ide: remove
local_irq_set() macro") accidentally replaced local_save_flags()
by local_irq_set() in ide_probe_port() and __ide_wait_stat()
which resulted in LOCKDEP breakage.
Reported-by: Larry Finger <Larry.Finger@lwfinger.net>
Tested-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Move apparently misplaced read_sff_dma_status() method from 'struct ide_tp_ops'
to 'struct ide_dma_ops', renaming it to dma_sff_read_status() and making only
required for SFF-8038i compatible IDE controller drivers (greatly cutting down
the number of initializers) as its only user (outside ide-dma-sff.c and such
drivers) appears to be ide_pci_check_simplex() which is only called for such
controllers...
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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This makes ide_port_scan()'s behavior match ide_host_register()'s
one and fixes OOPS in elv_may_queue() during port re-scan.
Reported-and-tested-by: Bruno Prémont <bonbons@linux-vserver.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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According the documentation, id[ATA_ID_DWORD_IO] is non-zero if
the drive supports dword IO, while the code disables support by
setting IDE_DFLAG_NO_IO_32BIT. In addition, this word has been
reused by the ATA8 specification. This patch fixes both cases.
Signed-off-by: Mario Schwalbe <schwalbe@inf.tu-dresden.de>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
[bart: remove id[ATA_ID_DWORD_IO] check altogether per Sergei's suggestion]
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Add ide_port_for_each_dev() / ide_host_for_each_port() iterators
and update IDE code to use them.
While at it:
- s/unit/i/ variable in ide_port_wait_ready(), ide_probe_port(),
ide_port_tune_devices(), ide_port_init_devices_data(), do_reset1(),
ide_acpi_set_state() and scc_dma_end()
- s/d/i/ variable in ide_proc_port_register_devices()
There should be no functional changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Allocate device structures dynamically instead of having them embedded
in ide_hwif_t:
* Remove needless zeroing of port structure from ide_init_port_data().
* Add ide_hwif_t.devices[MAX_DRIVES] (table of pointers to the devices).
* Add ide_port_{alloc,free}_devices() helpers and use them respectively
in ide_{host,free}_alloc().
* Convert all users of ->drives[] to use ->devices[] instead.
While at it:
* Use drive->dn for the slave device check in scc_pata.c.
As a nice side-effect this patch cuts ~1kB (x86-32) from the resulting
code size:
text data bss dec hex filename
53963 1244 237 55444 d894 drivers/ide/ide-core.o.before
52981 1244 237 54462 d4be drivers/ide/ide-core.o.after
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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kzalloc() -> kzalloc_node() in ide_host_alloc().
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Move IDE_DEFAULT_MAX_FAILURES to <linux/ide.h>.
* Move ide_cfg_mtx, ide_hwif_to_major[], ide_port_init_devices_data(),
ide_init_port_data(), ide_init_port_hw() and ide_unregister() to
ide-probe.c from ide.c.
* Make ide_unregister(), ide_init_port_data(), ide_init_port_hw()
and ide_cfg_mtx static.
While at it:
* Remove stale ide_init_port_data() documentation and ide_lock extern.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* 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: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Add 'int port_count' field to ide_hwgroup_t to keep the track
of the number of ports in the hwgroup. Then update init_irq()
and ide_remove_port_from_hwgroup() to use it.
* Remove no longer needed hwgroup->hwif, {drive,hwif}->next,
ide_add_drive_to_hwgroup() and ide_remove_drive_from_hwgroup()
(hwgroup->drive now only denotes the currently active device
in the hwgroup).
* Update locking documentation in <linux/ide.h>.
While at it:
* Rename ->drive field in ide_hwgroup_t to ->cur_dev.
* Use __func__ in ide_timer_expiry().
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Use hwif instead of hwgroup as {request,free}_irq()'s cookie,
teach ide_intr() to return early for non-active serialized ports,
modify unexpected_intr() accordingly and then use per-port IRQ
handlers instead of per-hwgroup ones.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Move hack for flush requests from choose_drive() to do_ide_request().
* Add ide_plug_device() helper and convert core IDE code from using
per-hwgroup lock as a request lock to use the ->queue_lock instead.
* Remove no longer needed:
- choose_drive() function
- WAKEUP() macro
- 'sleeping' flag from ide_hwif_t
- 'service_{start,time}' fields from ide_drive_t
This patch results in much simpler and more maintainable code
(besides being a scalability improvement).
v2:
* Fixes/improvements based on review from Elias:
- take as many requests off the queue as possible
- remove now redundant BUG_ON()
Cc: Elias Oltmanns <eo@nebensachen.de>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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While at it:
- media_string() -> ide_media_string()
There should be no functional changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Factor out device type classifying from do_identify()
to ide_classify_ata_dev() and ide_classify_atapi_dev().
There should be no functional changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Set chipset type explicitly in tx4938ide and tx4939ide host drivers
(all other host drivers were updated already).
* Remove no longer used chipset type fixup from ide_host_register().
Acked-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Push local_irq_{save,restore}() from actual_try_to_identify()
to do_identify() and remove no longer needed local_irq_enable().
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Move legacy ISA/VLB ports handling from ide-probe.c to ide-legacy.c.
* Add CONFIG_IDE_LEGACY config option to be selected by host drivers
needing ide-legacy.c.
v2:
Fix CONFIG_IDE_LEGACY not being defined in Kconfig.
(from Takashi Iwai <tiwai@suse.de>)
There should be no functional changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Let the compiler handle it.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* hpt366: set IDE_HFLAG_SERIALIZE in ->host_flags if needed
in init_hwif_hpt366(). Remove HPT_SERIALIZE_IO while at it.
* Set IDE_HFLAG_SERIALIZE in ->host_flags if needed in
ide_init_port().
* Convert init_irq() to use IDE_HFLAG_SERIALIZE together with
hwif->host to find out ports which need to be serialized.
* Remove no longer needed save_match() and ide_hwif_t.serialized.
v2:
* Set host's ->host_flags field instead of port's copy.
This patch should fix the incorrect grouping of port(s) from
host(s) that need serialization with port(s) that happen to use
the same IRQ(s) but are from the host(s) that don't need it.
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Add ->max_sectors field to struct ide_port_info to allow host drivers
to specify value used for hwif->rqsize (if smaller than the default).
* Convert pdc202xx_old to use ->max_sectors and remove no longer needed
IDE_HFLAG_RQSIZE_256 flag.
There should be no functional changes caused by this patch.
Acked-by: Sergei Shtyltov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Set nIEN for previous port/device in ide_do_request()
also if port uses a non-shared IRQ.
* Remove no longer needed ide_hwif_t.sharing_irq.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Set IDE_HFLAG_SERIALIZE explictly for CMD646.
* Remove no longer needed ide_cmd646 chipset type (which has
a nice side-effect of fixing handling of unexpected IRQs).
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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init_irq() shouldn't use IRQF_SHARED for ali14xx IDE IRQ handler.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Now that (almost) all host drivers have been fixed not to abuse ide_lock
and core code usage of ide_lock has been sanitized we may safely replace
ide_lock by per-hwgroup locks.
This patch is partially based on earlier patch from Ravikiran G Thirumalai.
While at it:
- don't use deprecated HWIF() and HWGROUP() macros
- update locking documentation in ide.h
v2:
Add missing spin_lock_init(&hwgroup->lock). (Noticed by Elias Oltmanns)
Cc: Vaibhav V. Nivargi <vaibhav.nivargi@gmail.com>
Cc: Alok N. Kataria <alokk@calsoftinc.com>
Cc: Shai Fultheim <shai@scalex86.org>
Signed-off-by: Ravikiran Thirumalai <kiran@scalex86.org>
Cc: Elias Oltmanns <eo@nebensachen.de>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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It seems that on some nVidia controllers using AltStatus register
can be unreliable so default to Status register if the PCI device
is in Compatibility Mode. In order to achieve this:
* Add ide_pci_is_in_compatibility_mode() inline helper to <linux/ide.h>.
* Add IDE_HFLAG_BROKEN_ALTSTATUS host flag and set it in amd74xx host
driver for nVidia controllers in Compatibility Mode.
* Teach actual_try_to_identify() and drive_is_ready() about the new flag.
This fixes the regression caused by removal of CONFIG_IDEPCI_SHARE_IRQ
config option in 2.6.25 and using AltStatus register unconditionally when
available (kernel.org bugs #11659 and #10216).
[ Moreover for CONFIG_IDEPCI_SHARE_IRQ=y (which is what most people
and distributions use) it never worked correctly. ]
Thanks to Remy LABENE and Lars Winterfeld for help with debugging the problem.
More info at:
http://bugzilla.kernel.org/show_bug.cgi?id=11659
http://bugzilla.kernel.org/show_bug.cgi?id=10216
Reported-by: Remy LABENE <remy.labene@free.fr>
Tested-by: Remy LABENE <remy.labene@free.fr>
Tested-by: Lars Winterfeld <lars.winterfeld@tu-ilmenau.de>
Acked-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Just use IDE_DFLAG_DOORLOCKING instead.
There should be no functional changes caused by this patch.
Acked-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Now that device_create() has been audited, rename things back to the
original call to be sane.
Cc: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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On user request (through sysfs), the IDLE IMMEDIATE command with UNLOAD
FEATURE as specified in ATA-7 is issued to the device and processing of
the request queue is stopped thereafter until the specified timeout
expires or user space asks to resume normal operation. This is supposed
to prevent the heads of a hard drive from accidentally crashing onto the
platter when a heavy shock is anticipated (like a falling laptop expected
to hit the floor). Port resets are deferred whenever a device on that
port is in the parked state.
v3:
Elias Oltmanns <eo@nebensachen.de> wrote:
[...]
> >> 1. Make sure that no negative value is being passed to
> >> jiffies_to_msecs() in ide_park_show().
> >> 2. Drop the superfluous variable hwif in ide_special_rq().
> >> 3. Skip initialisation of task and tf in ide_special_rq() if we are not
> >> handling a (un)park request.
> >
> > Well, #3 should have been done differently because we donn't want to
> > check for REQ_(UN)?PARK_HEADS more often than is necessary.
>
> While preparing the backport to 2.6.27, it has just occurred to me that
> we need to clear the IDE_DFLAG_PARKED flag in ide_disk_pre_reset()
> because this flag must not be set after *any* sort of access to the
> device.
v4:
Fix a memory leak due to a missing blk_put_request() in
issue_park_cmd(). Additionally, we should plug the queue when enqueueing
the unpark request because there is no guarantee that the park timeout
has not expired by then. Even though the chance for that to happen is
very slim, the request might end up hanging in the queue until the next
I/O operation is queued up. While at it, clean up the code a little:
- make issue_park_cmd() a function of type void since nobody cares for
the return value anyway;
- use blk_start_queueing() instead of __blk_run_queue() since we don't
have to worry about recursion;
- remove a superfluous pointer deference in task_no_data_intr().
Signed-off-by: Elias Oltmanns <eo@nebensachen.de>
Cc: Jeff Garzik <jeff@garzik.org>,
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Tejun Heo <htejun@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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In function ide_devset_execute() we should use __GFP_WAIT rather than
GFP_KERNEL. Also, the allocation cannot possibly fail at that point.
More importantly, there is a potential memory leak in the device probing
code. The infrastructure seems rather complex and I hope I haven't messed
anything up by trying to fix this.
Signed-off-by: Elias Oltmanns <eo@nebensachen.de>
[bart: remove superfluous ide_lock taking]
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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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: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Remove no longer used ide_host_alloc_all().
* Add MAX_HOST_PORTS define and use it instead of MAX_HWIFS
as the maximum number of host ports possible.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Use 'drive->dn & 1' in ide_init_disk().
* remove [ata_]select_t.
While at it:
* Use ATA_DEVICE_OBS define in ide_port_init_devices_data().
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Call ide_port_init_devices() in ide_host_register()
also if 'struct ide_port_info *d' is not available.
* Init drive->dn in ide_port_init_devices() instead of
ide_probe_port() so it is valid also in ->init_dev.
* Pass device number to ide_dev_apply_params().
* Use 'drive->dn & 1' instead of drive->select.b.unit.
There should be no functional changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Add 'unsigned long dev_flags' to ide_drive_t and convert bitfields
to IDE_DFLAG_* flags.
While at it:
- IDE_DFLAG_ADDRESSING -> IDE_DFLAG_LBA48
- fixup some comments
- remove needless g->flags zeroing from ide*_probe()
There should be no functional changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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MAX_HWIFS is now always equal to the number of IDE major numbers.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Keep pointer to ->init_chipset method also in
struct ide_host and set it in ide_host_alloc_all().
* Add ide_pci_suspend() and ide_pci_resume() helpers
(default ->suspend and ->resume implementations).
* ->init_chipset can no longer be marked __devinit.
* Add proper PCI PM support to IDE PCI host drivers
(rz1000.c and tc86c001.c are skipped for now since
they need to be converted from using ->init_hwif
to use ->init_chipset instead).
v2:
* Cleanup CONFIG_PM #ifdef-s per akpm's suggestion.
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Use ata_id_is_cfa() in do_identify() instead of open-coding
check for CompactFlash devices (the inline helper also takes
care of detecting CFs advertising themselves as ATA disks).
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Just use SECTOR_SIZE instead.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Add struct ide_devset, S_* flags, *DEVSET() & ide*_devset_*() macros.
* Add 'const struct ide_devset **settings' to ide_driver_t.
* Use 'const struct ide_devset **settings' in ide_drive_t instead of
'struct ide_settings_s *settings'. Then convert core code and device
drivers to use struct ide_devset and co.:
- device settings are no longer allocated dynamically for each device
but instead there is an unique struct ide_devset instance per setting
- device driver keeps the pointer to the table of pointers to its
settings in ide_driver_t.settings
- generic settings are kept in ide_generic_setting[]
- ide_proc_[un]register_driver(), ide_find_setting_by_name(),
ide_{read,write}_setting() and proc_ide_{read,write}_settings()
are updated accordingly
- ide*_add_settings() are removed
* Remove no longer used __ide_add_setting(), ide_add_setting(),
__ide_remove_setting() and auto_remove_settings().
* Remove no longer used TYPE_*, SETTING_*, ide_procset_t
and ide_settings_t.
* ->keep_settings, ->using_dma, ->unmask, ->noflush, ->dsc_overlap,
->nice1, ->addressing, ->wcache and ->nowerr ide_drive_t fields
can now be bitfield flags.
While at it:
* Rename ide_find_setting_by_name() to ide_find_setting().
* Rename write_wcache() to set_wcache().
There should be no functional changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Use multi PIO by default when available and remove no longer
needed CONFIG_IDEDISK_MULTI_MODE (it should be safe nowadays,
despite to what help entry has been saying).
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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They just obfuscate the code.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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init_irq() is now called only during initial host registration
so these BUG_ON()-s are no loner needed (+ the last one was done
too late anyway).
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Make ide_busy_sleep() take timeout value as a parameter
and also allow use of AltStatus Register if requested with
altstatus parameter. Update existing users accordingly.
* Convert ide_driveid_update() and actual_try_to_identify()
to use ide_busy_sleep().
There should be no functional changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Fix EXABYTENEST handling in probe_for_drive() (so drive->present
is checked for "nested" device) and cleanup enable_nest().
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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