Commit Graph

89432 Commits

Author SHA1 Message Date
Ian Abbott
b2e68b00d5 Staging: comedi: addi-data: don't overwrite name for request_irq()
The Addi-Data PCI drivers for Comedi use sprintf() in their comedi
"attach" routine to construct a string to pass as the name in the call
to request_irq().  All calls to "attach" routine share the same static
buffer for this name, but the contents will differ on each call
(including the comedi device number and the comedi board name).  This
changes the name displayed in /proc/interrupts for previous calls to
request_irq() using the same buffer.  Just use the board name instead;
it has slightly less information (no comedi device number) but at least
it doesn't change over the lifetime of the IRQ handler.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-04 13:38:52 -07:00
Ian Abbott
6d8b0f5be5 Staging: comedi: Give the addi_apci_* drivers different driver names
It is not currently possible for more than one of the addi_apci_*
drivers to register themselves with comedi at once because they all use
the same comedi driver name "addi_common".  Give them different names.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-04 13:38:52 -07:00
Sreedhara DS
a4cff8b82a Staging: mid: Intel MID touch screen driver
Touchscreen driver used by intel mid devices. Some clean up by Alan Cox. This
driver is basically ready for upstreaming properly but is tied wrongly to the
SPI layer and needs firmware/SFI changes to fix that.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-04 13:38:51 -07:00
apatard@mandriva.com
d7636e0b07 staging: Add framebuffer driver for XGI chipsets
This driver handles XG20, XG21, XG40, XG42 chipsets from XGI. They're
also known as Z7,Z9,Z11 chipsets. It's based on the SiS fb driver but
has been heavily modified by XGI to support their newer chipsets.


Signed-off-by: Arnaud Patard <apatard@mandriva.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-04 13:38:51 -07:00
Yegor Yefremov
66169ad17d serial: add support for various Titan PCI cards
serial: add support for various Titan PCI cards

Models: 200I, 400I, 800I, 400EH, 800EH, 800EHB,
        100E, 200E, 400E, 800E, 200EI, 200EISI

Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-04 13:37:18 -07:00
Dan Carpenter
3fde85df54 vt_ioctl: return -EFAULT on copy_from_user errors
copy_from_user() returns the number of bytes remaining but we want to
return a negative error code here.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-04 13:37:18 -07:00
Tobias Klauser
c1bfffa94e serial: altera_uart: Proper section for altera_uart_remove
altera_uart_remove should be in .devexit.text

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-04 13:37:18 -07:00
Frank Pan
962400e8fd tty: fix a little bug in scrup, vt.c
The code uses vc->vc_cols instead of vc->vc_size_row by mistake, it
will cause half of the region which is going to clear remain
uncleared.
The issue happens in background consoles, so it's hard to observe.

Frank Pan

Signed-off-by: Frank Pan <frankpzh@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-04 13:37:18 -07:00
Tobias Klauser
fadf34f0f0 altera_uart: Simplify altera_uart_console_putc
The check for the TRDY flag after writing the character is not needed.
Also do a cpu_relax() inside the loop.

Pass a struct uart_port to altera_uart_console_putc, so we do not need
to get it (and dereference pointers) for every character.

Cc: Thomas Chou <thomas@wytron.com.tw>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-04 13:37:18 -07:00
Tobias Klauser
d8d721f4c0 altera_uart: Don't take spinlock in already protected functions
Don't take the port spinlock in uart functions where the serial core
already takes care of locking/unlocking them.

The code would actually lock up on architectures where spinlocks are
implemented (not the case on nios2 where this driver is primarily used
for now, thus this bug didn't trigger).

Also protect calling altera_uart_rx_chars/altera_uart_tx_chars in the
interrupt handler by the port spinlock.

Thanks to Ian Abbott for pointing these issues out.

Cc: Ian Abbott <abbotti@mev.co.uk>
Cc: Thomas Chou <thomas@wytron.com.tw>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-04 13:37:17 -07:00
Dan Carpenter
328be395a3 TTY/n_gsm: potential double lock
In gsm_dlci_data_kick() we call gsm_dlci_data_sweep() with the
"gsm->tx_lock" held so we can't lock it again inside
gsm_dlci_data_sweep().  I removed that lock from and added one to
gsmld_write_wakeup() instead.  The sweep function is only called from
those two places.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Alan Cox <alan@linux.intel.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-04 13:37:17 -07:00
Sonic Zhang
e59e2bd9e8 serial: bfin_5xx: fix typo in IER check
This most likely won't cause problems on systems as people don't typically
enable GPIO RTS/CTS if they don't actually use it.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-04 13:37:17 -07:00
Graf Yang
ca3e442e8d serial: bfin_5xx: IRDA is not affected by anomaly 05000230
Anomaly 05000230 (over sampling of the UART STOP bit) applies only when
the peripheral is operating in UART mode.  So drop the anomaly handling
when the UART is in IRDA mode.

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-04 13:37:17 -07:00
Alexander Kurz
99ec88f345 serial_cs: add and sort IDs for serial and modem cards
Signed-off-by: Alexander Kurz <linux@kbdbabel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-04 13:37:16 -07:00
Abhijeet Dharmapurikar
18c79d76ec msm_serial: fix serial on trout
Set the mnd counter based on uartclk. This fixes a problem
on 7x30 where the uartclk is 19.2Mhz rather than the usual
4.8Mhz.

Trout incorrectly reports uartclk to be running at 19.2Mhz
It is actually running at 4.8Mhz.  For trout force mnd
counter values as if uartclk was fed by tcxo/4.

Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
[dwalker@codeaurora.org: inlined, moved into header, added comments.]
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-04 13:37:16 -07:00
Alan Stern
c043f12456 USB: unbind all interfaces before rebinding them
This patch (as1387) fixes a bug introduced during the changeover to
the runtime PM framework.  When a driver doesn't support resume or
reset-resume, and consequently its interfaces need to be unbound and
rebound, we have to unbind all the interfaces before trying to rebind
any of them.  Otherwise the driver's probe method for one interface
could try to claim a different interface and fail, because that other
interface hasn't been unbound yet.

This fixes Bugzilla #15788.  The symptom is that some USB sound cards
don't work after hibernation.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: François Valenduc <francois.valenduc@tvcablenet.be>
Cc: stable <stable@kernel.org> [.34]
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-04 13:16:20 -07:00
Julia Lawall
109f34e71b USB: serial: digi_acceleport: Eliminate a NULL pointer dereference
If port is NULL, then the call to dev_err will dereference a value that is
a small offset from NULL.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@r exists@
expression E,E1;
identifier f;
statement S1,S2,S3;
@@

if ((E == NULL && ...) || ...)
{
  ... when != if (...) S1 else S2
      when != E = E1
* E->f
  ... when any
  return ...;
}
else S3
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-04 13:16:19 -07:00
Grant Likely
1f23b2d98c usb: fix ehci_hcd build failure when both generic-OF and xilinx is selected
This patch fixes the driver to allow both CONFIG_USB_EHCI_HCD_PPC_OF and
CONFIG_USB_ECHI_HCD_XILINX to be selected.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
CC: John Linn <john.linn@xilinx.com>
CC: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-04 13:16:19 -07:00
Axel Lin
c2572b78aa USB: cdc-acm: fix resource reclaim in error path of acm_probe
This patch fixes resource reclaim in error path of acm_probe:

1. In the case of "out of memory (read urbs usb_alloc_urb)\n")", there
   is no need to call acm_read_buffers_free(acm) here.  Fix it by goto
   alloc_fail6 instead of alloc_fail7.
2. In the case of "out of memory (write urbs usb_alloc_urb)",
   usb_alloc_urb may fail in any iteration of the for loop.  Current
   implementation does not properly free allocated snd->urb.  Fix it by
   goto alloc_fail8 instead of alloc_fail7.
3. In the case of device_create_file(&intf->dev,&dev_attr_iCountryCodeRelDate)
   fail, acm->country_codes is kfreed. As a result, device_remove_file
   for dev_attr_wCountryCodes will not be executed in acm_disconnect.
   Fix it by calling device_remove_file for dev_attr_wCountryCodes
   before goto skip_countries.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Oliver Neukum <oneukum@suse.de>
Cc: stable <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-04 13:16:19 -07:00
Daniel Mack
6a1a82df91 USB: ftdi_sio: fix DTR/RTS line modes
Call set_mctrl() and clear_mctrl() according to the flow control mode
selected. This makes serial communication for FT232 connected devices
work when CRTSCTS is not set.

This fixes a regression introduced by 4175f3e31 ("tty_port: If we are
opened non blocking we still need to raise the carrier"). This patch
calls the low-level driver's dtr_rts() function which consequently sets
TIOCM_DTR | TIOCM_RTS. A later call to set_termios() without CRTSCTS in
cflags, however, does not reset these bits, and so data is not actually
sent out on the serial wire.

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Cc: Johan Hovold <jhovold@gmail.com>
Cc: Alan Cox <alan@linux.intel.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-04 13:16:19 -07:00
Ben Dooks
1703a6d3c3 USB: s3c-hsotg: Ensure FIFOs are fully flushed after layout
According to the design guide, if the FIFO layout is changed, then the
FIFOs must be flushed to ensure all FIFO pointers are correct.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-04 13:16:19 -07:00
Ben Dooks
2e0e0777ec USB: s3c-hsotg: SoftDisconnect minimum 3ms
The shortest period SoftDisconnect can be asserted for is 3 milliseconds
according to the V210 datasheet, so ensure that we add an msleep() to
the registration code to enforce this.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-04 13:16:19 -07:00
Ben Dooks
0f002d2005 USB: s3c-hsotg: Ensure TX FIFO addresses setup when initialising FIFOs
Some versions of the S3C HS OtG block startup with overlapping TX FIFO
information, so change the fifo_init code to ensure that known values
are set into the FIFO registers at initialisation/reset time.

This also ensures that the FIFO RAM pointers are in a known state
before use.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-04 13:16:19 -07:00
Maurus Cuelenaere
0287e43dda USB: s3c_hsotg: define USB_GADGET_DUALSPEED in Kconfig
The s3c_hsotg driver sets usb_gadget->is_dualspeed to 1, yet it doesn't define
USB_GADGET_DUALSPEED in Kconfig. This triggers a NULL pointer dereference in
the composite driver (which is fixed in another patch).

Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-04 13:16:19 -07:00
Thomas Abraham
390b166138 USB: s3c: Enable soft disconnect during initialization
Enable soft disconnect bit the OTG core during initialization. Without this,
the host sees that a gadget is connected and tries to enumerate. The
soft disconnect should be enabled until the USB gadget driver is
registered with this otg driver.

Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-04 13:16:19 -07:00
Sarah Sharp
0238634d02 USB: xhci: Print NEC firmware version.
The NEC xHCI host controller firmware version can be found by putting a
vendor-specific command on the command ring and extracting the BCD
encoded-version out of the vendor-specific event TRB.

The firmware version debug line in dmesg will look like:

xhci_hcd 0000:05:00.0: NEC firmware version 30.21

(NEC merged with Renesas Technologies and became Renesas Electronics on
April 1, 2010.  I have their OK to merge this vendor-specific code.)

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: Satoshi Otani <satoshi.otani.xm@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-04 13:16:19 -07:00
Sarah Sharp
ed07453fd3 USB: xhci: Wait for host to start running.
When the run bit is set in the xHCI command register, it may take a few
microseconds for the host to start running.  We cannot ring any doorbells
until the host is actually running, so wait until the status register says
the host is running.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Reported-by: Shinya Saito <shinya.saito.sx@renesas.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-04 13:16:19 -07:00
Sarah Sharp
2d62f3eea9 USB: xhci: Wait for controller to be ready after reset.
After software resets an xHCI host controller, it must wait for the
"Controller Not Ready" (CNR) bit in the status register to be cleared.
Software is not supposed to ring any doorbells or write to any registers
except the status register until this bit is cleared.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-04 13:16:18 -07:00
Mike Frysinger
0c8a32dff4 USB: isp1362: fix inw warning on Blackfin systems
The Blackfin code is incorrectly casting the argument to inw() to a pointer.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-04 13:16:18 -07:00
Johan Hovold
b41709f126 USB: mos7840: fix null-pointer dereference
Fix null-pointer dereference on error path.

Cc: stable <stable@kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-04 13:16:18 -07:00
Linus Torvalds
b8a3c6091a Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6:
  ACPI: Eliminate us to pm ticks conversion in common path
  ACPI: Fix the incorrect calculation about C-state idle time
  ACPI: update feature-removal.txt to reflect deleted acpi=ht option
  ACPI / EC / PM: Fix names of functions that block/unblock EC transactions
  ACPI / EC / PM: Fix race between EC transactions and system suspend
2010-06-04 13:04:39 -07:00
Len Brown
85f1bb4ace Merge branch 'acpi-idle' into release 2010-06-04 15:23:02 -04:00
Linus Torvalds
ed8319e9b2 Merge branch 'sfi-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-sfi-2.6
* 'sfi-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-sfi-2.6:
  SFI: do not return freed pointer
2010-06-04 12:22:43 -07:00
Venkatesh Pallipadi
bceefad59a ACPI: Eliminate us to pm ticks conversion in common path
acpi_enter_[simple|bm] routines does us to pm tick conversion on every
idle wakeup and the value is only used in /proc/acpi display. We can
store the time in us and convert it into pm ticks before printing instead and
avoid the conversion in the common path.

Signed-off-by: Venkatesh Pallipadi <venki@google.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2010-06-04 15:22:28 -04:00
Zhao Yakui
157317ba3e ACPI: Fix the incorrect calculation about C-state idle time
The C-state idle time is not calculated correctly, which will return the wrong
residency time in C-state. It will have the following effects:
   1.  The system can't choose the deeper C-state when it is idle next time.
Of course the system power is increased. E.g. On one server machine about 40W
idle power is increased.
   2.  The powertop shows that it will stay in C0 running state about 95% time
although the system is idle at most time.

2.6.35-rc1 regression caused-by: 2da513f582
(ACPI: Minor cleanup eliminating redundant PMTIMER_TICKS to NS conversion)

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Reported-by: Yu Zhidong <zhidong.yu@intel.com>
Tested-by: Yu Zhidong <zhidong.yu@intel.com>
Acked-by: Venkatesh Pallipadi <venki@google.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2010-06-04 15:22:18 -04:00
Linus Torvalds
bc23416cd4 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ALSA: hda-intel - fix wallclk variable update and condition
  ALSA: asihpi - Fix uninitialized variable
  ALSA: hda: Use LPIB for ASUS M2V
  usb/gadget: Replace the old USB audio FU definitions in f_audio.c
  ASoC: MX31ads sound support should depend on MACH_MX31ADS_WM1133_EV1
  ASoC: Add missing Kconfig entry for Phytec boards
  ALSA: usb-audio: export UAC2 clock selectors as mixer controls
  ALSA: usb-audio: clean up find_audio_control_unit()
  ALSA: usb-audio: add UAC2 sepecific Feature Unit controls
  ALSA: usb-audio: unify constants from specification
  ALSA: usb-audio: parse clock topology of UAC2 devices
  ALSA: usb-audio: fix selector unit string index accessor
  include/linux/usb/audio-v2.h: add more UAC2 details
  ALSA: usb-audio: support partially write-protected UAC2 controls
  ALSA: usb-audio: UAC2: clean up parsing of bmaControls
  ALSA: hda: Use LPIB for another mainboard
  ALSA: hda: Use mb31 quirk for an iMac model
  ALSA: hda: Use LPIB for an ASUS device
2010-06-04 09:48:03 -07:00
Ping Cheng
3a4b4aaa54 Input: wacom - add Cintiq 21UX2 and Intuos4 WL
Signed-off-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2010-06-04 00:43:17 -07:00
Linus Torvalds
ad8456361f Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  libata: implement on-demand HPA unlocking
  libata: use the enlarged capacity after late HPA unlock
  SCSI: implement sd_unlock_native_capacity()
  libata-sff: trivial corrections to Kconfig help text
  sata_nv: don't diddle with nIEN on mcp55
  sata_via: magic vt6421 fix for transmission problems w/ WD drives
2010-06-03 15:48:15 -07:00
Linus Torvalds
39059cceed Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc/macio: Fix probing of macio devices by using the right of match table
  agp/uninorth: Fix oops caused by flushing too much
  powerpc/pasemi: Update MAINTAINERS file
  powerpc/cell: Fix integer constant warning
  powerpc/kprobes: Remove resume_execution() in kprobes
  powerpc/macio: Don't dereference pointer before null check
2010-06-03 15:46:37 -07:00
Linus Torvalds
b01b7dc283 Merge branch 'for-linus/bugfixes' of git://xenbits.xensource.com/people/ianc/linux-2.6
* 'for-linus/bugfixes' of git://xenbits.xensource.com/people/ianc/linux-2.6:
  xen: avoid allocation causing potential swap activity on the resume path
  xen: ensure timer tick is resumed even on CPU driving the resume
2010-06-03 15:46:09 -07:00
Linus Torvalds
636667a545 Merge branch 'virtio' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus
* 'virtio' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
  virtio: console: Fix crash when port is unplugged and blocked for write
  virtio: console: Fix crash when hot-unplugging a port and read is blocked
  virtio-blk: fix minimum number of S/G elements
2010-06-03 15:45:03 -07:00
Linus Torvalds
ceadda057c Merge branch 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
* 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  i2c: Remove all i2c_set_clientdata(client, NULL) in drivers
  i2c/busses: Move two drivers to embedded section
  i2c: Rename i2c_check_addr to i2c_check_addr_busy
  i2c: Document reserved I2C addresses
  i2c: Check for address validity on client registration
  i2c: Share the I2C device presence detection code
  Documentation/i2c: Checkpatch cleanup
2010-06-03 15:44:43 -07:00
Linus Torvalds
95619be590 Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: crypto4xx - Fix build breakage
  n2_crypto: Plumb fallback ahash requests properly.
  n2_crypto: Fix MAU kmem_cache name.
  n2_crypto: Fix build after of_device/of_platform_driver changes.
2010-06-03 15:42:21 -07:00
David S. Miller
4f4aeb7fd0 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 2010-06-03 12:30:58 -07:00
Linus Torvalds
1067b6c2be Merge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (41 commits)
  drm/radeon/kms: make sure display hw is disabled when suspending
  drm/vmwgfx: Allow userspace to change default layout. Bump minor.
  drm/vmwgfx: Fix framebuffer modesetting
  drm/vmwgfx: Fix vga save / restore with display topology.
  vgaarb: use MIT license
  vgaarb: convert pr_devel() to pr_debug()
  drm: fix typos in Linux DRM Developer's Guide
  drm/radeon/kms/pm: voltage fixes
  drm/radeon/kms/pm: radeon_set_power_state fixes
  drm/radeon/kms/pm: patch default power state with default clocks/voltages on r6xx+
  drm/radeon/kms/pm: enable SetVoltage on r7xx/evergreen
  drm/radeon/kms/pm: add support for SetVoltage cmd table (V2)
  drm/radeon/kms/evergreen: add initial CS parser
  drm/kms: disable/enable poll around switcheroo on/off
  drm/nouveau: fixup confusion over which handle the DSM is hanging off.
  drm/nouveau: attempt to get bios from ACPI v3
  drm/nv50: cast IGP memory location to u64 before shifting
  drm/ttm: Fix ttm_page_alloc.c
  drm/ttm: Fix cached TTM page allocation.
  drm/vmwgfx: Remove some leftover debug messages.
  ...
2010-06-03 07:19:45 -07:00
Linus Torvalds
a652883a24 Merge branch 'merge' of git://git.secretlab.ca/git/linux-2.6
* 'merge' of git://git.secretlab.ca/git/linux-2.6:
  of/powerpc: fix fsl_msi device node pointer
  of/watchdog: gef_wdt.c: fix build breakage
  of/edac: fix build breakage in drivers
  of/net: fs_enet/mii-bitbang.c: fix build breakage
  of/usb: fsl_qe_udc.c: fix build breakage
  of/crypto: crypto4xx_core.c: fix build breakage
  of/dma: fix build breakage in ppc4xx adma driver
  of/mtd: nand: fix build breakage in drivers
  of/video: fix build breakage in FB drivers
  of/pcmcia: m8xx_pcmcia.c: Fix build failures
  of/rtc: rtc-mpc5121.c: Fix build failures
  of/dma: mpc512x_dma.c: Fix build failures
  of/mtd/nand: mpc5121_nfc.c: Fix build failures
  of/spi: mpc512x_psc_spi.c: Fix build failures
  watchdog: Fix build failure with OF changes
  of/spi: Fix build failure on spi_ppc4xx.c
  of/usb: fix build error due to of_node pointer move
  of/powerpc: fix 85xx RapidIO device node pointer
2010-06-03 07:17:31 -07:00
Amit Shah
60e5e0b840 virtio: console: Fix crash when port is unplugged and blocked for write
When a program that has a virtio port opened and blocked for a write
operation, a port hot-unplug event will later led to a crash when
SIGTERM was sent to the program. Fix that.

Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2010-06-03 22:39:19 +09:30
Amit Shah
0047634d3d virtio: console: Fix crash when hot-unplugging a port and read is blocked
When removing a port we don't check if a program was blocked for read.
This leads to a crash when SIGTERM is sent to the program after
hot-unplugging the port.

Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2010-06-03 22:39:18 +09:30
Christoph Hellwig
a5b365a652 virtio-blk: fix minimum number of S/G elements
We need at least one S/G element to operate properly, as does the block
layer which increments it to one anyway.  We hit this due to a qemu
bug which advertises a sg_elements of 0 under some circumstances.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (tweaked logic)
2010-06-03 22:39:18 +09:30
Jeff Kirsher
a1868dc287 ixgbe: return IXGBE_ERR_RAR_INDEX when out of range
Based on original patch from Shirley Ma <xma@us.ibm.com>
Return IXGBE_ERR_RAR_INDEX when RAR index is out of range, instead of
returning IXGBE_SUCCESS.

CC: Shirley Ma <xma@us.ibm.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Acked-by: Don Skidmore <donald.c.skidmore@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-03 03:28:28 -07:00
Ben Hutchings
3df95ce948 sfc: Store port number in net_device::dev_id
This exposes the port number to userland through sysfs.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-03 03:28:26 -07:00
Roland Dreier
9e2d11b926 epic100: Test __BIG_ENDIAN instead of (non-existent) CONFIG_BIG_ENDIAN
Probably no one has used this driver on big-endian systems, since it was
setting up descriptor swapping if CONFIG_BIG_ENDIAN is set, which it
never is, since that symbol is not mentioned anywhere else in the kernel
source.  Switch this test to a check for __BIG_ENDIAN so it has a chance
at working.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-03 03:28:24 -07:00
Dan Carpenter
d233807018 tehuti: return -EFAULT on copy_to_user errors
copy_to_user() returns the number of bytes remaining but we want to
return a negative error code here.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-03 03:28:23 -07:00
Dan Carpenter
60a5711db6 isdn/kcapi: return -EFAULT on copy_from_user errors
copy_from_user() returns the number of bytes remaining but we should
return -EFAULT here.  The error code gets returned to the user.  Both
old_capi_manufacturer() and capi20_manufacturer() had other places
that already returned -EFAULT so this won't break anything.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-03 03:28:22 -07:00
Dan Carpenter
3b21b508ec e1000e: change logical negate to bitwise
The bitwise negate is intended here.  With the logical negate the
condition is always false.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-03 03:28:21 -07:00
Ben Hutchings
d42a8f464b sfc: Get port number from CS_PORT_NUM, not PCI function number
A single shared memory region used to communicate with firmware is
mapped into both PCI PFs of the SFC9020 and SFL9021.  Drivers must be
able to identify which port they are addressing in order to use the
correct sub-region.  Currently we use the PCI function number, but the
PCI address may be virtualised.  Use the CS_PORT_NUM register field
defined for just this purpose.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-03 03:27:56 -07:00
Wolfram Sang
fbae3fb154 i2c: Remove all i2c_set_clientdata(client, NULL) in drivers
I2C drivers can use the clientdata-pointer to point to private data. As I2C
devices are not really unregistered, but merely detached from their driver, it
used to be the drivers obligation to clear this pointer during remove() or a
failed probe(). As a couple of drivers forgot to do this, it was agreed that it
was cleaner if the i2c-core does this clearance when appropriate, as there is
no guarantee for the lifetime of the clientdata-pointer after remove() anyhow.
This feature was added to the core with commit
e4a7b9b04d to fix the faulty drivers.

As there is no need anymore to clear the clientdata-pointer, remove all current
occurrences in the drivers to simplify the code and prevent confusion.

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Acked-by: Richard Purdie <rpurdie@linux.intel.com>
Acked-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2010-06-03 11:33:58 +02:00
Wolfram Sang
35bfc353dc i2c/busses: Move two drivers to embedded section
And fix a typo while we are here

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2010-06-03 11:33:56 +02:00
Jean Delvare
3b5f794b8b i2c: Rename i2c_check_addr to i2c_check_addr_busy
Otherwise it's not clear what it is checking.

Also move the function to save a forward declaration.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2010-06-03 11:33:55 +02:00
Jean Delvare
656b8761ab i2c: Document reserved I2C addresses
Move strict I2C address validity check to a single function, and
document the reserved I2C addresses there.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Hans Verkuil <hverkuil@xs4all.nl>
2010-06-03 11:33:53 +02:00
Jean Delvare
3a89db5f30 i2c: Check for address validity on client registration
Do basic address validity checks when a client is being registered. We
already had checks in place for devices which are being detected, but
not for devices which are simply instantiated.

This is a very basic check. We don't want to do strict checking here
because some devices are known to infringe the I2C address constraints
(e.g. IR receivers at 7-bit address 0x7a while this value is
supposedly reserved for 10-bit addresses.) So we assume the caller
knows what it is doing.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Matthieu Castet <castet.matthieu@free.fr>
2010-06-03 11:33:52 +02:00
Jean Delvare
63e4e80218 i2c: Share the I2C device presence detection code
Use the same I2C device presence detection code for legacy and new
device detection functions. This is more consistent and makes the code
smaller.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Matthieu Castet <castet.matthieu@free.fr>
2010-06-03 11:33:51 +02:00
Ian Campbell
b3831cb55d xen: avoid allocation causing potential swap activity on the resume path
Since the device we are resuming could be the device containing the
swap device we should ensure that the allocation cannot cause
IO.

On resume, this path is triggered when the running system tries to
continue using its devices.  If it cannot then the resume will fail;
to try to avoid this we let it dip into the emergency pools.

The majority of these changes were made when linux-2.6.18-xen.hg
changeset e8b49cfbdac0 was ported upstream in
a144ff09bc but somehow this hunk was
dropped.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Stable Kernel <stable@kernel.org> # .32.x
2010-06-03 09:34:45 +01:00
Anatolij Gustschin
0f0a8fa735 crypto: crypto4xx - Fix build breakage
Fixes build error caused by the OF device_node
pointer being moved into struct device

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-06-03 16:57:24 +10:00
Alex Deucher
d8dcaa1dc5 drm/radeon/kms: make sure display hw is disabled when suspending
Disable the display hw when suspending.
Should fix bug:
https://bugzilla.redhat.com/show_bug.cgi?id=522393

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-06-03 13:13:37 +10:00
Jakob Bornecrantz
d8bd19d2af drm/vmwgfx: Allow userspace to change default layout. Bump minor.
The host may change the layout and, since the change is
communicated to the master, the master needs a way to
communicate the change to the kernel driver.

The minor version number is bumped to advertize the
availability of this feature.

Signed-off-by: Jakob Bornecrantz <jakob@vmware.com>
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-06-03 13:13:36 +10:00
Jakob Bornecrantz
991b7b44f8 drm/vmwgfx: Fix framebuffer modesetting
Must set SVGA_NUM_REG_GUEST_DISPLAY before setting up the display information.

Signed-off-by: Jakob Bornecrantz <jakob@vmware.com>
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-06-03 13:13:36 +10:00
Thomas Hellstrom
7c4f77801f drm/vmwgfx: Fix vga save / restore with display topology.
vga save / restore previously didn't handle the display topology case.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-06-03 13:13:35 +10:00
Tiago Vignatti
c0db9cbc73 vgaarb: use MIT license
Signed-off-by: Tiago Vignatti <tiago.vignatti@nokia.com>
Cc: Henry Zhao <Henry.Zhao@Sun.COM>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-06-03 13:13:34 +10:00
Tiago Vignatti
2d6e9b9197 vgaarb: convert pr_devel() to pr_debug()
We want to be able to use CONFIG_DYNAMIC_DEBUG in arbiter code, switch
the few existing pr_devel() calls to pr_debug().

Also, add one more debug information regarding decoding count.

Signed-off-by: Tiago Vignatti <tiago.vignatti@nokia.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-06-03 13:13:33 +10:00
Alex Deucher
84d88f4c92 drm/radeon/kms/pm: voltage fixes
- Enable GPIO voltage for non pm modes as well so resetting
the default voltage works.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-06-03 13:13:31 +10:00
Alex Deucher
92645879d0 drm/radeon/kms/pm: radeon_set_power_state fixes
- wait for vbl for both profile and dynpm
- unify profile and dynpm code paths more
- call pm_misc before of after clocks to make
sure voltage is changed in the proper order.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-06-03 13:13:30 +10:00
Alex Deucher
c5e8ce61d6 drm/radeon/kms/pm: patch default power state with default clocks/voltages on r6xx+
The default power state does not always match the default clocks and voltage
for a particular card.  The information in the firmware info table is correct
and should be used in preference to the info the default power state.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-06-03 13:13:29 +10:00
Alex Deucher
9349d5cc92 drm/radeon/kms/pm: enable SetVoltage on r7xx/evergreen
I missed these in the r6xx commit.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-06-03 13:13:28 +10:00
Alex Deucher
7ac9aa5a1f drm/radeon/kms/pm: add support for SetVoltage cmd table (V2)
- This enables voltage adjustment on r6xx+ and certain
r5xx asics.
- Voltage drop support is already available for most
r1xx-r5xx asics.

V2: endian fix for voltage table.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-06-03 13:13:24 +10:00
Anatolij Gustschin
b74dbf2aed of/watchdog: gef_wdt.c: fix build breakage
Fixes build error caused by the OF device_node
pointer being moved into struct device

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-06-02 21:02:41 -06:00
Anatolij Gustschin
a26f95fed3 of/edac: fix build breakage in drivers
Fixes build errors in EDAC drivers caused by the OF
device_node pointer being moved into struct device

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-06-02 21:02:41 -06:00
Anatolij Gustschin
4eecb17825 of/net: fs_enet/mii-bitbang.c: fix build breakage
Fixes build error caused by the OF device_node
pointer being moved into struct device

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-06-02 21:02:40 -06:00
Anatolij Gustschin
3ed3880230 of/usb: fsl_qe_udc.c: fix build breakage
Fixes build error caused by the OF device_node
pointer being moved into struct device

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-06-02 21:02:40 -06:00
Anatolij Gustschin
7cea8cc470 of/crypto: crypto4xx_core.c: fix build breakage
Fixes build error caused by the OF device_node
pointer being moved into struct device

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-06-02 21:02:39 -06:00
Anatolij Gustschin
05c02542c2 of/dma: fix build breakage in ppc4xx adma driver
Fixes build error caused by the OF device_node
pointer being moved into struct device

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-06-02 21:02:39 -06:00
Anatolij Gustschin
c8a4d0fd2a of/mtd: nand: fix build breakage in drivers
Fixes build errors in drivers caused by the OF device_node
pointer being moved into struct device

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-06-02 21:02:38 -06:00
Anatolij Gustschin
d4b8b2c2c0 of/video: fix build breakage in FB drivers
Fixes build errors in a number of framebuffer drivers caused
by the OF device_node pointer being moved into struct device

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-06-02 21:02:38 -06:00
Anatolij Gustschin
2005ce3521 of/pcmcia: m8xx_pcmcia.c: Fix build failures
Fixes build errors caused by the:
- OF device_node pointer being moved into struct device
- typo in match_table field in the struct device_driver
  (which shoud be of_match_table)

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-06-02 21:02:38 -06:00
Mikulas Patocka
a57ee62749 Fix colors for Mach64
Use the same color-calculating algorithm as in atyfb_imageblit in this
driver or in generic cfb_fillrect.

This patch fixes bad colors when using an accelerator in 15-bit and
16-bit modes.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-06-02 14:41:12 -07:00
Grant Likely
295bdd9c52 of/rtc: rtc-mpc5121.c: Fix build failures
Fixes build errors caused by the:
- OF device_node pointer being moved into struct device
- removal of the match_table field from struct of_platform_driver

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
CC: Paul Gortmaker <p_gortmaker@yahoo.com>
CC: Alessandro Zummo <a.zummo@towertech.it>
CC: Wolfgang Denk <wd@denx.de>
CC: Tejun Heo <tj@kernel.org>
CC: Anatolij Gustschin <agust@denx.de>
CC: rtc-linux@googlegroups.com
CC: devicetree-discuss@lists.ozlabs.org
2010-06-02 14:06:09 -06:00
Anatolij Gustschin
b4a75c91b8 of/dma: mpc512x_dma.c: Fix build failures
Fixes build errors caused by the:
 - OF device_node pointer being moved into struct device
 - removal of the match_table field from struct of_platform_driver

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-06-02 13:45:08 -06:00
Anatolij Gustschin
14acbbf8ba of/mtd/nand: mpc5121_nfc.c: Fix build failures
Fixes build errors caused by the:
 - OF device_node pointer being moved into struct device
 - removal of the match_table field from struct of_platform_driver

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-06-02 13:45:07 -06:00
Anatolij Gustschin
ef7f2e831c of/spi: mpc512x_psc_spi.c: Fix build failures
Fixes build errors caused by the:
 - OF device_node pointer being moved into struct device
 - removal of the match_table field from struct of_platform_driver

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-06-02 13:45:06 -06:00
Michael Guntsche
de2b606c24 watchdog: Fix build failure with OF changes
commit 61c7a080a5 ( of: Always use
'struct device.of_node' to get device node pointer.) missed
drivers/watchdog/mpc8xxx_wdt.c. This patch fixes it

Signed-off-by: Michael Guntsche <mike@it-loops.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-06-02 13:45:05 -06:00
Grant Likely
b53550781b of/spi: Fix build failure on spi_ppc4xx.c
This patch fixes a build error caused by the OF device_node pointer
being moved into struct device.

Fixes bug introduced by commit 61c7a080a5
(of: Always use 'struct device.of_node' to get device node pointer)

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
CC: Sean MacLennan <smaclennan@pikatech.com>
CC: spi-devel-general@lists.sourceforge.net
CC: devicetree-discuss@lists.ozlabs.org
2010-06-02 13:38:33 -06:00
Grant Likely
ffabc9a6e8 of/usb: fix build error due to of_node pointer move
Fix driver to use new location of of_node pointer (introduced by commit
use new location of of_node pointer (introduced by commit
61c7a080a5a061c976988fd4b844dfb468dda255; of: Always use 'struct
device.of_node' to get device node pointer)

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Reported-by: John Linn <john.linn@xilinx.com>
CC: Greg Kroah-Hartman <gregkh@suse.de>
CC: Alan Stern <stern@rowland.harvard.edu>
CC: linux-usb@vger.kernel.org
CC: devicetree-discuss@lists.ozlabs.org
2010-06-02 13:35:02 -06:00
Tejun Heo
d8d9129ea2 libata: implement on-demand HPA unlocking
Implement ata_scsi_unlock_native_capacity() which will be called
through SCSI layer when block layer notices that partitions on a
device extend beyond the end of the device.  It requests EH to unlock
HPA, waits for completion and returns the current device capacity.

This allows libata to unlock HPA on demand instead of having to decide
whether to unlock upfront.  Unlocking on demand is safer than
unlocking by upfront because some BIOSes write private data to the
area beyond HPA limit.  This was suggested by Ben Hutchings.

Signed-off-by: Tejun Heo <tj@kernel.org>
Suggested-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2010-06-02 13:50:10 -04:00
Tejun Heo
68939ce5fc libata: use the enlarged capacity after late HPA unlock
After late HPA unlock, libata kept using the original capacity
ignoring the new larger native capacity.  Enlarging device on the fly
doesn't cause any harm.  Use the larger native capacity instead.  This
will enable on-demand HPA unlocking.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2010-06-02 13:50:07 -04:00
Tejun Heo
72ec24bd77 SCSI: implement sd_unlock_native_capacity()
Implement sd_unlock_native_capacity() method which calls into
hostt->unlock_native_capacity() if implemented.  This will be invoked
by block layer if partitions extend beyond the end of the device and
can be used to implement, for example, on-demand ATA host protected
area unlocking.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2010-06-02 13:50:04 -04:00
Stefan Richter
ed4e2f801c libata-sff: trivial corrections to Kconfig help text
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2010-06-02 13:50:00 -04:00
Tejun Heo
f3faf8fc3f sata_nv: don't diddle with nIEN on mcp55
On mcp55, nIEN gets stuck once set and liteon blueray rom iHOS104-08
violates ATA specification and fails to set I on D2H Reg FIS if nIEN
is set when the command was issued.  When the other party is following
the spec, both devices can work fine but when the two flaws are put
together, they can't talk to each other.

mcp55 has its own IRQ masking mechanism and there's no reason to mess
with nIEN in the first place.  Fix it by dropping nIEN diddling from
nv_mcp55_freeze/thaw().

This was originally reported by Cengiz.  Although Cengiz hasn't
verified the fix yet, I could reproduce this problem and verfiy the
fix.  Even if Cengiz is experiencing different or additional problems,
this patch is needed.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Cengiz Günay <cgunay@emory.edu>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2010-06-02 13:49:57 -04:00
Tejun Heo
8b27ff4cf6 sata_via: magic vt6421 fix for transmission problems w/ WD drives
vt6421 has problems talking to recent WD drives.  It causes a lot of
transmission errors while high bandwidth transfer as reported in the
following bugzilla entry.

  https://bugzilla.kernel.org/show_bug.cgi?id=15173

Joseph Chan provided the following fix.  I don't have any idea what it
does but I can verify the issue is gone with the patch applied.

Signed-off-by: Tejun Heo <tj@kernel.org>
Originally-from: Joseph Chan <JosephChan@via.com.tw>
Reported-by: Jorrit Tijben <sjorrit@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2010-06-02 13:49:50 -04:00
Eric Bénard
e3fe8558c7 net/fec: fix pm to survive to suspend/resume
* in the actual driver, calling fec_stop and fec_enet_init doesn't
allow to have a working network interface at resume (where a
ifconfig down and up is required to recover the interface)
* by using fec_enet_close and fec_enet_open, this patch solves this
problem and handle the case where the link changed between suspend
and resume
* this patch also disable clock at suspend and reenable it at resume

Signed-off-by: Eric Bénard <eric@eukrea.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-02 06:13:34 -07:00
Phil Sutter
b1011b375b korina: count RX DMA OVR as rx_fifo_error
This way, RX DMA overruns (actually being caused by overrun of the
512byte input FIFO) show up in ifconfig output. The rx_fifo_errors
counter is unused otherwise.

Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-02 06:12:19 -07:00