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  1. 29 10月, 2007 3 次提交
    • T
      libata: implement ata_wait_after_reset() · 88ff6eaf
      由 Tejun Heo 提交于 
      On certain device/controller combination, 0xff status is asserted
after reset and doesn't get cleared during 150ms post-reset wait.  As
0xff status is interpreted as no device (for good reasons), this can
lead to misdetection on such cases.

This patch implements ata_wait_after_reset() which replaces the 150ms
sleep and waits upto ATA_TMOUT_FF_WAIT if status is 0xff.
ATA_TMOUT_FF_WAIT is currently 800ms which is enough for
HHD424020F7SV00 to get detected but not enough for Quantum GoVault
drive which is known to take upto 2s.

Without parallel probing, spending 2s on 0xff port would incur too
much delay on ata_piix's which use 0xff to indicate empty port and
doesn't have SCR register, so GoVault needs to wait till parallel
probing.
Signed-off-by: NTejun Heo <htejun@gmail.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NJeff Garzik <jeff@garzik.org>
      88ff6eaf
    • T
      libata: track SLEEP state and issue SRST to wake it up · 054a5fba
      由 Tejun Heo 提交于 
      ATA devices in SLEEP mode don't respond to any commands.  SRST is
necessary to wake it up.  Till now, when a command is issued to a
device in SLEEP mode, the command times out, which makes EH reset the
device and retry the command after that, causing a long delay.

This patch makes libata track SLEEP state and issue SRST automatically
if a command is about to be issued to a device in SLEEP.
Signed-off-by: NTejun Heo <htejun@gmail.com>
Cc: Bruce Allen <ballen@gravity.phys.uwm.edu>
Cc: Andrew Paprocki <andrew@ishiboo.com>
Signed-off-by: NJeff Garzik <jeff@garzik.org>
      054a5fba
    • T
      libata: relocate and fix post-command processing · 4dbfa39b
      由 Tejun Heo 提交于 
      Some commands need post-processing after successful completion.  This
was done in ata_scsi_qc_complete() till now but this has the following
problems.

* Post-command processing gets executed when qc is completed from EH.
  Some qc's are retried from EH with zero err_mask and thus triggers
  unnecessary/incorrect post-command processing.

* Command post processing doesn't belong to SAT layer.

* Link-wide revalidation was scheduled where device revalidation
  suffices.

This patch moves post-command processing to success completion path of
ata_qc_complete() which is travelled iff the command is going to be
completed without passing through EH and updates post-command
processing such that device-specific action is used.  While at it,
restructure code a bit for readability.
Signed-off-by: NTejun Heo <htejun@gmail.com>
Signed-off-by: NJeff Garzik <jeff@garzik.org>
      4dbfa39b
  3. 28 10月, 2007 3 次提交
  5. 27 10月, 2007 11 次提交
    • D
      mmc_spi: Fix mmc-over-spi regression · 460cd058
      由 David Brownell 提交于 
      Patch 49dce689 changed the sysfs data
structures for SPI in a way which broke the MMC-over-SPI host driver.

This patch fixes that regression by changing the scheme used to keep
from knowingly trying to use a shared bus segment, and updates the
adjacent comments slightly to better explain the issue.
Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: NPierre Ossman <drzeus@drzeus.cx>
      460cd058
    • P
      mmc: use common byte swap macros · 1fa8dd14
      由 Pierre Ossman 提交于 
      Use the more generic byte swapping macros instead of the socket variants.
Signed-off-by: NPierre Ossman <drzeus@drzeus.cx>
      1fa8dd14
    • P
      mmc: fix cid and csd byte order · 78e48073
      由 Pierre Ossman 提交于 
      MMC over SPI sends the CID and CSD registers as data, not responses,
which means that the host driver won't do the necessary byte flipping
for us.
Signed-off-by: NPierre Ossman <drzeus@drzeus.cx>
      78e48073
    • P
      at91_mci: Fix bad reference · 6356a9d9
      由 Pierre Ossman 提交于 
      The flags parameter got removed in a previous commit, but some
references were overlooked.
Signed-off-by: NPierre Ossman <drzeus@drzeus.cx>
      6356a9d9
    • H
      [CRYPTO] users: Fix up scatterlist conversion errors · 68e3f5dd
      由 Herbert Xu 提交于 
      This patch fixes the errors made in the users of the crypto layer during
the sg_init_table conversion.  It also adds a few conversions that were
missing altogether.
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      68e3f5dd
    • E
      [NET]: Marking struct pernet_operations __net_initdata was inappropriate · 2b008b0a
      由 Eric W. Biederman 提交于 
      It is not safe to to place struct pernet_operations in a special section.
We need struct pernet_operations to last until we call unregister_pernet_subsys.
Which doesn't happen until module unload.

So marking struct pernet_operations is a disaster for modules in two ways.
- We discard it before we call the exit method it points to.
- Because I keep struct pernet_operations on a linked list discarding
  it for compiled in code removes elements in the middle of a linked
  list and does horrible things for linked insert.

So this looks safe assuming __exit_refok is not discarded
for modules.
Signed-off-by: NEric W. Biederman <ebiederm@xmission.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      2b008b0a
    • B
      ide: add SH-S202J to ivb_list[] · 8588a2b7
      由 Bartlomiej Zolnierkiewicz 提交于 
      From the report by Nick Warne.
Tested-by: NNick Warne <nick@ukfsn.org>
Cc: Lennart Sorensen <lsorense@csclub.uwaterloo.ca>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
      8588a2b7
    • J
      drivers/ide/pci/sc1200.c: fix suspend/resume buglets and warnings · 9d434813
      由 Jeff Garzik 提交于 
      * We shouldn't bother with dev->current_state, the PCI API functions we
  call manage this for us (and do a far better job at it too).

* Remove pci_set_power_state(dev, PCI_D0) call in resume, as
  pci_enable_device() does the same thing.

* Check pci_enable_device() return value.  If it failed, fail
  the entire resume and avoid programming timings into the [potentially
  dead/asleep] chip.
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
      9d434813
    • B
      drivers/ide/pci/generic: fix build for CONFIG_HOTPLUG=n · d5271be6
      由 Bartlomiej Zolnierkiewicz 提交于 
      It turns out that const and __{dev}initdata cannot be mixed currently
and that generic IDE PCI host driver is also affected by the same issue:

On Thursday 25 October 2007, Ralf Baechle wrote:
>   CC      drivers/ide/pci/generic.o
> drivers/ide/pci/generic.c:52: error: __setup_str_ide_generic_all_on causes a
> +section type conflict

[ Also reported by Martijn Uffing <mp3project@sarijopen.student.utwente.nl>. ]

This patch workarounds the problem in a bit hackish way but without
removing const from generic_chipsets[] (it adds const to __setup() so
__setup_str_ide_generic_all becomes const).

Now all __{dev}initdata data in generic IDE PCI host driver are read-only
so it builds again (driver's .init.data section gets marked as READONLY).

Cc: Martijn Uffing <mp3project@sarijopen.student.utwente.nl>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
      d5271be6
    • B
      hpt366: fix build for CONFIG_HOTPLUG=n · 282037f1
      由 Bartlomiej Zolnierkiewicz 提交于 
      On Saturday 20 October 2007, Avuton Olrich wrote:

> My randconfig script the attached config caught an error on:
> drivers/ide/pci/cy82c693.c:439: error: primary causes a section type conflict
>
> My git tree: c00046c2
>
> Bisected to:
> 85620436 is first bad commit
> commit 85620436
> Author: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
> Date:   Sat Oct 20 00:32:34 2007 +0200
>
>     ide: constify struct ide_port_info
>
>     Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

It turns out that const and __{dev}initdata cannot be mixed currently
and that hpt366 host driver is also affected by the same issue:

> drivers/ide/pci/hpt366.c:1428: error: hpt366_chipsets causes a section type
> conflict

This patch workarounds the problem by making static struct hpt_info instances
const.  Now all __devinitdata data in hpt366 host driver are read-only so it
builds again (driver's .init.data section gets marked as READONLY).

While at it:

* Bump driver version.

Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: "Avuton Olrich" <avuton@gmail.com>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
      282037f1
    • B
      cy82c693: fix build for CONFIG_HOTPLUG=n · f32d26ae
      由 Bartlomiej Zolnierkiewicz 提交于 
      On Saturday 20 October 2007, Avuton Olrich wrote:

> My randconfig script the attached config caught an error on:
> drivers/ide/pci/cy82c693.c:439: error: primary causes a section type conflict
>
> My git tree: c00046c2
>
> Bisected to:
> 85620436 is first bad commit
> commit 85620436
> Author: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
> Date:   Sat Oct 20 00:32:34 2007 +0200
>
>     ide: constify struct ide_port_info
>
>     Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

It turns out that const and __{dev}initdata cannot be mixed currently.

This patch workarounds the problem by removing __devinitdata tag from 'primary'
variable (which makes 'primary' to be moved from .init.data to .bss section).
Now all __devinitdata data in cy82c693 host driver are read-only so it builds
again (driver's .init.data section gets marked as READONLY).

While at it:

* Move 'primary' variable to its only user, init_iops_cy82c693().

* Bump driver version.

Cc: "Avuton Olrich" <avuton@gmail.com>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
      f32d26ae
  7. 26 10月, 2007 23 次提交