Thanks to several earlier patches, usb_autosuspend_device() and
usb_autoresume_device() are never called with a second argument other
than 1. This patch (as819) removes the now-redundant argument.
It also consolidates some common code between those two routines,
putting it into a new subroutine called usb_autopm_do_device(). And
it includes a sizable kerneldoc update for the affected functions.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as818b) simplifies autosuspend processing by keeping track
of the number of unsuspended children of each USB hub. This will
permit us to avoid a good deal of unnecessary work all the time; we
will no longer have to create a bunch of workqueue entries to carry
out autosuspend requests, only to have them fail because one of the
hub's children isn't suspended.
The basic idea is simple. There already is a usage counter in the
usb_device structure for preventing autosuspends. The patch just
increments that counter for every unsuspended child. There's only one
tricky part: When a device disconnects we need to remember whether it
was suspended at the time (leave the counter alone) or not (decrement
the counter).
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as817) simplifies the remote-wakeup processing in the hub
driver. Now instead of using a specialized code path, it relies on
the standard USB resume routines. The hub_port_resume() function does
an initial get_port_status() to see whether the port has already
resumed itself (as it does when a remote-wakeup request is sent).
This will slow down handling of other resume events slightly, but not
enough to matter.
The patch also changes the hub_port_status() routine, making it return
an error if a short reply is received.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as816) changes an existing flag in the usb_device
structure to a bitflag, preparing the way for more bitflags to come
in the future.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Unlike UHCI, OHCI does not exert any DMA load on the system when no
devices are connected. Consequently there is no advantage to doing
an autostop other than the power savings, so we shouldn't compile the
necessary code unless CONFIG_PM is enabled.
This patch (as820) makes the root-hub suspend and resume routines
conditional on CONFIG_PM. It also prevents autostop from activating
if the device_may_wakeup flag isn't set; some people use this flag to
alert the driver about Resume-Detect bugs in the hardware.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as742b) adds autosuspend/autoresume support to the USB hub
driver. The largest aspect of the change is that we no longer need a
special flag for root hubs that want to be resumed. Now every hub is
autoresumed whenever khubd needs to access it.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as738b) fixes numerous problems in the controller/root-hub
suspend/resume/remote-wakeup support in ehci-hcd:
The bus_resume() routine should wake up only the ports that
were suspended by bus_suspend(). Ports that were already
suspended should remain that way.
The interrupt mask is used to detect loss of power in the
bus_resume() routine (if the mask is 0 then power was lost).
However bus_suspend() always sets the mask to 0. Instead the
mask should retain its normal value, with port-change-detect
interrupts disabled if remote wakeup is turned off.
The interrupt mask should be reset to its correct value at the
end of bus_resume() regardless of whether power was lost.
bus_resume() reinitializes the operational registers if power
was lost. However those registers are not in the aux power
well, hence they can lose their values whenever the controller
is put into D3. They should always be reinitialized.
When a port-change interrupt occurs and the root hub is
suspended, the interrupt handler should request a root-hub
resume instead of starting up the controller all by itself.
There's no need for the interrupt handler to request a
root-hub resume every time a suspended port sends a
remote-wakeup request.
The pci_resume() method doesn't need to check for connected
ports when deciding whether or not to reset the controller.
It can make that decision based on whether Vaux power was
maintained.
Even when the controller does not need to be reset,
pci_resume() must undo the effect of pci_suspend() by
re-enabling the interrupt mask.
If power was lost, pci_resume() must not call ehci_run().
At this point the root hub is still supposed to be suspended,
not running. It's enough to rewrite the command register and
set the configured_flag.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Might speed up some systems. If nothing else, a bad driver should not
take the whole USB subsystem down with it.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch is an update for Greg K-H's proposed usbfs2:
http://sourceforge.net/mailarchive/message.php?msg_id=19295229
It creates a dynamic major for USB endpoints and fixes
the endpoint minor calculation.
Signed-off-by: Sarah Bailey <saharabeara@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
there is an error path in the pegasus driver which can leave
the task in TASK_UNINTERRUPTIBLE. Depending on when it
schedules next, this can be bad.
Signed-off-by: Oliver Neukum <oliver@neukum.name>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
the latest update for asix.c reverted some endianness fixes. This
reinstates them.
Signed-off-by: Oliver Neukum <oliver@neukum.name>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
We do already have both the code and a config option, so why not build
this driver? ;-)
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Use canonical defines for the Apple USB device IDs.
Also add the Geyser IV devices missing in my previous patch.
Signed-off-by: Julien BLACHE <jb@jblache.org>
Acked-by: Dmitry Torokhov <dtor@insightbb.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Just digging through code and found these needless variable initializations. So here is the patch.
Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Make the pxa2xx_udc driver recognize a newer revision of the IXP425 chip.
Signed-off-by: Milan Svoboda <msvoboda@ra.rockwell.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Adds support for the DMC TSC-10 and TSC-25 usb touchscreen controllers.
Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Signed-off-by: Daniel Ritz <daniel.ritz@gmx.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch contains the following possible cleanups:
- make the needlessly global ftdi_release_platform_dev() static
- remove the unused usb_ftdi_elan_read_reg()
- proper prototypes for the following functions:
- usb_ftdi_elan_read_pcimem()
- usb_ftdi_elan_write_pcimem()
Note that the misplaced prototypes for the latter ones in
drivers/usb/host/u132-hcd.c were buggy. Depending on the calling
convention of the architecture calling one of them could have turned
your stack into garbage.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch makes the needlessly global "u132_hcd_wait" static.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
If at some point cypress_init() fails deregister
only the resources that were registered until that point.
Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Certain boards seem to like to issue false overcurrent notifications, for
example on ports that don't have anything connected to them. This looks
like a hardware error, at the level of noise to those ports' overcurrent
input signals (or non-debounced VBUS comparators). This surfaces to users
as truly massive amounts of syslog spam from khubd (which is appropriate
for real hardware problems, except for the volume from multiple ports).
Using this new "ignore_oc" flag helps such systems work more sanely, by
preventing such indications from getting to khubd (and spam syslog). The
downside is of course that true overcurrent errors will be masked; they'll
appear as spontaneous disconnects, without the diagnostics that will let
users troubleshoot issues like short circuited cables.
Note that the bulk of these reports seem to be with VIA southbridges, but
I think some were with Intel ones.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
EHCI hooks for high speed electrical tests of the root hub ports.
The expectation is that a usermode program actually triggers the test,
making the same control request it would make for an external hub.
Tests for peripheral upstream ports would issue a different request.
In all cases, the hardware needs re-initialization before it could
be used "normally" again (e.g. unplug/replug, rmmod/modprobe).
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The net2280 driver is too eager to send zero-length packets when
IN tokens are received on ep0. No such packet should be sent (the
driver should NAK) before the gadget driver has queued the proper
response. Otherwise deferred responses are impossible.
This patch (as823) makes net2280 avoid sending ZLPs for IN transfers
on ep0 until a response has been submitted, and avoids stalling when an
OUT packet is received before a request has been submitted for an OUT
transfer on ep0.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Possible memleak fix on error path. The changes:
- out_kfree2 and out_free_urb replaced
- missing scsi_host_put() added
Here it goes:
Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: Oliver Neukum <oliver@neukum.name>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The mass storage device from Digitech designed for Flash Cards, as found
on (for example) the GNX4 device has issues with residue, similar to the
bug report at http://kerneltrap.org/node/6297. This patch adds the
faulty storage device to unusual_devs.h, this not only reduces the noise
in dmesg but also increases the transfer speeds by a factor of 7x for me
(89kB/s -> 637kB/s).
T: Bus=02 Lev=02 Prnt=02 Port=01 Cnt=02 Dev#= 4 Spd=12 MxCh= 0
D: Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=1210 ProdID=0003 Rev= 1.00
S: Manufacturer=DigiTech HMG
S: Product=DigiTech Mass Storage
C:* #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr= 0mA
I: If#= 0 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50
Driver=usb-storage
E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms
E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms
Signed-off-by: Jaco Kroon <jaco@kroon.co.za>
Signed-off-by: Phil Dibowitz <phil@ipom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as821) fixes a compiler warning when CONFIG_PM isn't on
("usb_autosuspend_work" defined but not used).
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
> 2006/11/11, Adrian Bunk <bunk@stusta.de>:
> > The Coverity checker spotted the following in
> > drivers/usb/serial/aircable.c:
> >
> > <-- snip -->
> >
> > ...
> > static void aircable_read(void *params)
> > {
> > ...
Hi everyone,
Sorry for the long time response but here is the patch, I think this way should
work, if anyone has any suggestion let me know. What I do now is, in case I
don't have the tty available I reschedule the work, I have tried it and it
works with no problem, I even tried removing the device, and didn't find
anything strange.
Signed-off-by: Naranjo Manuel <naranjo.manuel@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
All the other root-hub suspend or resume log messages, in ohci-hcd or
any of the other host controller drivers, use the debug priority
level. This patch (as815) makes the one single exception behave like
all the rest.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
We should free urbs starting at [i-1] not [i].
Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch makes the needlessly global wacom_sys_irq() static.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Several functions in USB core overlap with global functions.
The linker appears to do the right thing, but it is bad practice and makes
debugging harder.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Minor cleanup/clarification in the ethernet gadget driver, using standard
calls to test for Ethernet multicast and broadcast addresses.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as809b) moves the declaration of the hub driver's private
data structure from hub.h into the hub.c source file. Lots of other
files import hub.h; they have no need to know about the details of the
hub driver's private data.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Fix STATUS_PACKETS_* macros, where "&&" was mistakenly used where
"&" should have.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: David Brownell <david-b@pacbell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as814) adds usb_autopm_set_interface() to the autosuspend
API. It also provides convenient wrapper routines,
usb_autopm_enable() and usb_autopm_disable(), for drivers that want
to specify directly whether autosuspend should be allowed.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as813) gathers together common code for USB interface
autosuspend/autoresume.
It also adds some simple checking at the time an autosuspend request
is made, to see whether the request will fail. This way we don't
add a workqueue entry when it would end up doing nothing.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
We have no benefits of having the usb_endpoint_* functions as functions,
but making them inline saves text and data segment sizes:
text data bss dec hex filename
14893634 3108770 1108840 19111244 1239d4c vmlinux.func
14893185 3108566 1108840 19110591 1239abf vmlinux.inline
This is the result of a 2.6.19-rc3 kernel compiled with GCC 4.1.1 without
CONFIG_MODULES, CONFIG_CC_OPTIMIZE_FOR_SIZE, CONFIG_REGPARM options set.
USB support is fully enabled (while most of the other drivers are not),
and that kernel has most of the USB code ported to use the endpoint
functions.
That happens because a call to those functions are expensive (in terms
of bytes), while the function's size is smaller or have the same 'size' of
the call.
Signed-off-by: Luiz Fernando N. Capitulino <lcapitulino@mandriva.com.br>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as811) removes some stale testing code from the root-hub
resume routine in ohci-hcd. It also adds a spin_lock_irq() call that
inadvertently got left out of an error pathway.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
replace open coded kmemdup() to save some screen space,
and allow inlining/not inlining to be triggered by gcc.
Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as808b) moves the Root Hub Status Change interrupt-disable
code in ohci-hcd back into the interrupt handler proper, to avoid the
chance of adverse interactions with mediocre hardware implementations.
It also deletes the root-hub status timer from within the interrupt-enable
routine. There's no need to poll for status any more once interrupts are
re-enabled.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as806) fixes a compiler warning when ohci-hcd is built
with CONFIG_PM turned off.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as804) makes USB driver matching ignore the interface
class, subclass, and protocol if the device class is Vendor Specific.
Drivers can override this policy by specifying a Vendor ID as part
of the match; then vendor-specific matches are allowed.
Linus Walleij has reported a problem this patch fixes. When a
particular mass-storage device is switched from mass-storage mode to
Media Transfer Protocol, the interface class remains set to mass-storage
and usb-storage binds to it erroneously, even though the device class
changes to Vendor-Specific.
This may cause a problem for some drivers until their match records can
be updated to include Vendor IDs. But if it does, then those records
were broken to begin with.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The USB HID driver doesn't include any code to handle a STALL on the
interrupt endpoint. While this may be uncommon, it does happen
sometimes. This patch (as805) adds a fix.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Wireless USB Host Controllers accept a large number of devices per
host, which shows up as a large number of ports in its root hub.
When the number of ports in a hub device goes over 16, the activation
of the hub fails with the cryptic message in klogd.
hub 2-0:1.0: activate --> -22
Following this further, it was seen that:
hub_probe()
hub_configure()
generates pipe number
pseudo allocates buffer 'maxp' bytes in size using usb_maxpacket()
The endpoint descriptor for a root hub interrupt endpoint is
declared in
drivers/usb/core/hcd.c:hs_rh_config_descriptor and declares it
to be size two (supporting 15 devices max).
hub_activate()
usb_hcd_submit_urb()
rh_urb_enqueue()
urb->pipe is neither int nor ctl, so it errors out
rh_queue_status()
Returns -EINVAL because the buffer length is smaller
than the minimum needed to report all the hub port
bits as in accordance with USB2.0[11.12.3]. There has
to be trunc((PORTS + 1 + 7) / 8) bytes of space at
least.
Alan Stern confirmed that the reason for reading maxpktsize and not
the right amount is because some hubs are known to return more data
and thus cause overflow.
So this patch simply changes the code to make the interrupt endpoint's
max packet size be at least the minimum required by USB_MAXCHILDREN
(instead of a fixed magic number) and add documentation for that. This
way we are always ahead of the limit.
Signed-off-by: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Current Wireless USB host hardware (Intel i1480 for example) allows up
to 22 devices to connect, thus bringing up the max number of children
in the WUSB Host Controller to 22 'fake' ports. Upcoming hardware
might raise that limit.
Makes almost no difference to go to 31, as the bit arrays are
byte-aligned (plus an extra bit in general), so 22 bits fit in 4 bytes
as 31 do.
As well, the only other array that depends on USB_MAXCHILDREN is
'struct usb_hub->indicator'. By declaring it 'u8' instead of 'enum
hub_led_mode', we reduce the size of each entry from 4 bytes (in i386)
to 1, which will add as we when are doubling USB_MAXCHILDREN
(with 16 the size of that array is 64 bytes, with 31 would be 128; by
using u8 that goes down to 31 bytes).
Signed-off-by: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
We need to jump to the part of just flushing the request
when we cannot claim the bus. Sending commands to a bus
we do not own will give unpredictable results.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
After mmc_block's remove function has exited, we must not
touch the card structure in any way. This means we not only
must remove the gendisk, we must also flush out any
remaning requests already queued up.
We previously removed the disk, but didn't flush it,
causing oops:es when removing a card in the middle of a
transfer.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
The SDHCI spec implies that is is incorrect to set a clock
frequency above 25 MHz without setting the high speed bit.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Modern SD cards support a clock speed of 50 MHz. Make sure we test for
this capability and do the song and dance required to activate it.
Activating high speed support actually modifies the TRAN_SPEED field
of the CSD. But as the spec says that the cards must report 50 MHz,
we might as well skip re-reading the CSD.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Several fixes for mmc_delay():
* Repair if-clause that was supposed to detect sub-hz delays.
* Change yield() to cond_resched() as yield() no longer has the
semantics we desire.
* mmc_delay() is used to guarantee protocol delays, so we cannot
return early (i.e. use _interruptable).
Based on patch by Amol Lad.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
This change adds support for the mmc4 4-bit wide-bus mode.
The mmc4 spec defines 8-bit and 4-bit transfer modes. As we do not support
any 8-bit hardware, this patch only adds support for the 4-bit mode, but
it can easily be built upon when the time comes.
The 4-bit mode is electrically compatible with SD's 4-bit mode but the
procedure for turning it on is different. This patch implements only
the essential parts of the procedure as defined by the spec. Two additional
steps are recommended but not compulsory. I am documenting them here so
that there's a record.
1) A bus-test mechanism is implemented using dedicated mmc commands which allow
for testing the functionality of the data bus at the electrical level. This is
pretty paranoid and they way the commands work is not compatible with the mmc
subsystem (they don't set valid CRC values).
2) MMC v4 cards can indicate they would like to draw more than the default
amount of current in wide-bus modes. We currently will never switch the card
into a higher draw mode. Supposedly, allowing the card to draw more current
will let it perform better, but the specs seem to indicate that the card will
function correctly without the mode change. Empirical testing supports this
interpretation.
Signed-off-by: Philip Langdale <philipl@overt.org>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
This adds support for the high-speed modes defined by mmc v4
(assuming the host controller is up to it). On a TI sdhci controller,
it improves read speed from 1.3MBps to 2.3MBps. The TI controller can
only go up to 24MHz, but everything helps. Another person has taken
this basic patch and used it on a Nokia 770 to get a bigger boost
because that controller can run at 48MHZ.
Signed-off-by: Philip Langdale <philipl@overt.org>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
PXA MMC driver supports not only PXA255 but also PXA250 and newer ones
Signed-off-by: Marcin Juszkiewicz <hrw@openembedded.org>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
This patch is part of Juha Yrjola's and Komal Shah's earlier patch to
make general code cleanups
Signed-off-by: Carlos Eduardo Aguiar <carlos.aguiar <at> indt.org.br>
Signed-off-by: Juha Yrjola <juha.yrjola <at> solidboot.com>
Signed-off-by: Komal Shah <komal_shah802003 <at> yahoo.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
This patch is part of Tony Lindgren's earlier patch to add
MMC_CAP_{MULTIWRITE,BYTEBLOCK} flags in omap.c
Signed-off-by: Carlos Eduardo Aguiar <carlos.aguiar <at> indt.org.br>
Signed-off-by: Tony Lindgren <tony <at> atomide.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
This patch is part of Juha Yrjola's earlier patch to add platform device
error handling and a BUG_ON to verify if host == NULL
Signed-off-by: Carlos Eduardo Aguiar <carlos.aguiar <at> indt.org.br>
Signed-off-by: Juha Yrjola <juha.yrjola <at> solidboot.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
This patch is part of Juha Yrjola's earlier patch to move register
definitions away from the header file and the header file is removed.
Signed-off-by: Carlos Eduardo Aguiar <carlos.aguiar <at> indt.org.br>
Signed-off-by: Juha Yrjola <juha.yrjola <at> solidboot.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
This patch is part of Juha Yrjola's earlier patch to change
OMAP_MMC_{READ,WRITE} macros to use the host pointer
Signed-off-by: Carlos Eduardo Aguiar <carlos.aguiar <at> indt.org.br>
Signed-off-by: Juha Yrjola <juha.yrjola <at> solidboot.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
This patch is part of Juha Yrjola's earlier patch to replace base
with virt_base and phys_base
Signed-off-by: Carlos Eduardo Aguiar <carlos.aguiar <at> indt.org.br>
Signed-off-by: Juha Yrjola <juha.yrjola <at> solidboot.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Now that mmc_host_ops can be constified, update the various drivers
to constify those method tables and shrink the writable data segment.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Replace kernel_thread() with kthread_run()/kthread_stop().
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
This patch modifies blk_rq_map/unmap_user() and the cdrom and scsi_ioctl.c
users so that it supports requests larger than bio by chaining them together.
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Correct a problem seen on later kernels running the NetPIPE application.
Specifically, NetPIPE would begin running very slowly at the 1533 packet
size. It was determined that Spidernet slowed with an idle DMA engine.
Signed-off-by: James K Lewis <jklewis@us.ibm.com>
Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
In an earlier patch, code was added to pad packets that were less that
ETH_ZLEN (60) bytes using the skb_pad function. This has caused hangs when
accessing certain NFS mounted file systems. This patch removes the check
and solves the NFS problem. The driver, with this patch, has been tested
extensively. Please apply.
Signed-off-by: James K Lewis <jklewis@us.ibm.com>
Cc: Stephen Hemminger <shemminger@osdl.org>
Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Bonding driver unconditionnaly dereference get_stats function pointer
for each of its slave device. This patch
- adds a check for NULL dev->get_stats pointer in bond_get_stats
- prints a notice when the bonding device enslave a device without
get_stats function.
Signed-off-by: Laurent Riffard <laurent.riffard@free.fr>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Confusingly NET_PCI is also set for for non-PCI EISA configurations where
building this driver will result in a build error due to a reference to
pci_release_regions.
While at it, remove the EXPERIMENTAL - in all its uglyness and despite
the sincerest attempts of the buggy hardware the driver is known to work.
Also limit the driver to the Atlas board - the only known system to ever
use the SAA9730 before Phillips ended the short live of the SAA9730.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Changes persistant -> persistent in actual C code. (part 1 changed
docs/comments).
Compile-tested.
Signed-off-by: Jan Engelhardt <jengelh@gmx.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Changes persistant -> persistent. www.dictionary.com does not know
persistant (with an A), but should it be one of those things you can
spell in more than one correct way, let me know.
Signed-off-by: Jan Engelhardt <jengelh@gmx.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
This patch converts a if () BUG(); construct to BUG_ON();
which occupies less space, uses unlikely and is safer when
BUG() is disabled.
Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
This patch converts a if () BUG(); construct to BUG_ON();
which occupies less space, uses unlikely and is safer when
BUG() is disabled.
Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Fix various .c/.h typos in comments (no code changes).
Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Fix various Kconfig typos.
Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
ib_ucm_cleanup_events() holds file_mutex while calling ib_destroy_cm_id().
This can deadlock since ib_destroy_cm_id() flushes event handlers, and
ib_ucm_event_handler() needs file_mutex, too. Therefore, drop the
file_mutex during the call to ib_destroy_cm_id().
Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
The ib_cm_establish() function is replaced with a more generic
ib_cm_notify(). This routine is used to notify the CM that failover
has occurred, so that future CM messages (LAP, DREQ) reach the remote
CM. (Currently, we continue to use the original path) This bumps the
userspace CM ABI.
New alternate path information is captured when a LAP message is sent
or received. This allows QP attributes to be initialized for the user
when a new path is loaded after failover occurs.
Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
ipoib_neigh_free() is sometimes called while neighbour is still alive,
so it might still have queued skbs. Fix skb leak in this case.
Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
SRP reallocates the IU buffers for tx_ring and rx_ring without freeing
the old buffers when it reconnects to a target. Fix this by keeping
the old IU buffers around.
Signed-off-by: Vu Pham <vu@mellanox.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Fix following problems in process_req() relating to cancellation:
- Function is wrongly doing another addr_remote() when cancelled,
which is not required.
- Make failure reporting immediate by using time_after_eq().
- On cancellation, -ETIMEDOUT was returned to the callback routine
instead of the more appropriate -ECANCELLED (users getting notified
may want to print/return this status, eg ucma_event_handler).
Signed-off-by: Krishna Kumar <krkumar2@in.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
It is possible to swap the CQs used for send_cq and recv_cq when
creating two different QPs. If these two QPs are then destroyed at
the same time, an AB-BA deadlock can occur because the CQ locks are
taken our of order. Fix this by always taking CQ locks in a fixed
order.
Signed-off-by: Krishna Kumar <krkumar2@in.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
When initializing an mthca SRQ, the log_srq_size field should be the
log of the number of SRQ WQEs, not the log of the number of bytes in
the SRQ.
This affects only mthca drivers for memfree HCAs which set the initial
srq wqe counter (in the SW2HW transition) to a non-zero value.
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This is a patch for ehca to fix a bug in prepare_sqe_to_rts(), which
used WQE address to iterate pending work requests. This might cause
an access violation since the queue pages can not be assumed to follow
each other consecutively. Thus, this patch introduces a few queue
functions to determine WQE offset based on its address and uses WQE
offset to iterate the pending work requests.
Signed-off-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
In iwcm_deref_id(), the comment says : "If the last reference is being
removed and iw_destroy_cm_id is waiting, wake up the waiting
thread". The second part of the comment, "and iw_destroy_cm_id is
waiting," is wrong, since this function either wakes the waiter
already waiting in iwcm_deref_id, or enables it (so that when
wait_for_completion() is performed later, it will immediately return).
Signed-off-by: Krishna Kumar <krkumar2@in.ibm.com>
Acked-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Remove unnecessary cm_id_priv argument to copy_private_data(), and
change text to reflect the code. Fix couple of typos in comments.
Signed-off-by: Krishna Kumar <krkumar2@in.ibm.com>
Acked-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
If we get IW_CM_EVENT_CONNECT_REQUEST message and encounter an error
(not in the LISTEN state, cannot create an id, cannot alloc
work_entry, etc), then the memory allocated by cm_event_handler() in
the event->private_data gets leaked. Since cm_work_handler has already
put the event on the work_free_list, this allocated memory is
leaked. High backlog value can allow DoS attacks.
Signed-off-by: Krishna Kumar <krkumar2@in.ibm.com>
Acked-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Possible memory corruption scenario: after putting the work entry back
on the work_free_list, we call process_event() which dereferences
work->event, which could have been modified to another value
meanwhile.
Signed-off-by: Krishna Kumar <krkumar2@in.ibm.com>
Acked-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
The amso1100 driver was missing a couple of __devinit/__devexit
annotations for init/cleanup functions that are called from
__devinit/__devexit functions.
Reported by Randy Dunlap <randy.dunlap@oracle.com>.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Commit b3b30f5e ("IB/mthca: Recover from catastrophic errors")
introduced some section mismatch breakage, because the error recovery
code tears down and reinitializes the device, which calls into lots of
code originally marked __devinit and __devexit from regular .text.
Fix this by getting rid of these now-incorrect section markers.
Reported by Randy Dunlap <randy.dunlap@oracle.com>.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Set the Scsi_Host's max_cmd_len from 12 (default) to 16 for
SRP. Otherwise scsi_dispatch_cmd() won't pass down certain commands
such as READ CAPACITY 16, required for supporting disks > 2TB.
Signed-off-by: Arne Redlich <arne.redlich@xiranet.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
The qp_access_flags are for remote access permissions only, so
IB_ACCESS_LOCAL_WRITE is an invalid value. Remove it from the values
set by cm_init_qp_init_attr() and cma_init_ib_qp().
Signed-off-by: Dotan Barak <dotanb@mellanox.co.il>
Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Replace open coded kmemdup() to save some screen space, and allow
inlining/not inlining to be triggered by gcc.
Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Rewrite cma_req_handler error handling case to encapsulate
common code.
Signed-off-by: Krishna Kumar <krkumar2@in.ibm.com>
Acked-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
In queue_req(), use time_after_eq() instead of time_after()
for following reasons :
- Improves insert time if multiple entries with same time are
present.
- set_timeout need not be called if entry with same time
is added to the list (and that happens to be the entry
with the smallest time), saving atomic/locking operations.
- Earlier entries with same time are deleted first (fifo).
Signed-off-by: Krishna Kumar <krkumar2@in.ibm.com>
Acked-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Remove redundant check of node_guid in cma_add_one().
Signed-off-by: Krishna Kumar <krkumar2@in.ibm.com>
Acked-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Optimize to test for an empty list first. This ends up simplifying
the code too.
Signed-off-by: Krishna Kumar <krkumar2@in.ibm.com>
Acked-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This changes the type of variable "i" in rtl8169_init_one()
from "unsigned int" to "int". "i" is checked for < 0 later,
which can never happen for "unsigned". This results in broken
error handling.
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Many LLDs are missing sht->slave_destroy. The method is mandatory to
support device warm unplugging (echo 1 > /sys/.../delete). Without
it, libata might access released scsi device.
Signed-off-by: Tejun Heo <htejun@gmail.com>
JMicron AHCI controllers set PORT_IRQ_IF_ERR on device errors. The
IRQ status bit indicates interface error or protocol mismatch and ahci
driver interprets it into AC_ERR_ATA_BUS. So, whenever an ATAPI
device raises check condition, ahci interprets it as ATA bus error and
thus resets it which, in turn, raises check condition thus creating a
reset loop and rendering the device unuseable.
This patch makes JMB controllers ignore PORT_IRQ_IF_ERR when
interpreting error condition.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Justin Tsai <justin@jmicron.com>
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev:
[PATCH] libata: Fixup ata_sas_queuecmd to handle __ata_scsi_queuecmd failure
[PATCH] ahci: AHCI mode SATA patch for Intel ICH9
[PATCH] libata: don't schedule EH on wcache on/off if old EH
When we sleep and wait for a suspended operation to be resumed, go
back and check until it's ready -- don't just continue after the first
time we're woken. This can cause file system corruption.
Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This reverts commit 4e1bbd846d.
Quoth Daniel Drake <dsd@gentoo.org>:
"A user reported that commit 4e1bbd846d
(Remove unneeded packed attributes) breaks the zd1211rw driver on ARM."
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This patch fixes the bug as reported in the kernel bug tracker
under the id 7244. The bug was simply that the interrupt lock has
been locked outside an interrupt without blocking the interrupt.
Signed-off-by: Ulrich Kunitz <kune@deine-taler.de>
Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Fixes ata_sas_queuecmd to properly handle a failure from
__ata_scsi_queuecmd.
Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This patch adds the Intel ICH9 AHCI controller DID's for SATA support.
Signed-off-by: Jason Gaston <jason.d.gaston@intel.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Do not schedule EH for revalidation on wcache on/off if old EH. Old
EH cannot handle it and will result in WARN_ON()'s and oops.
This closes bug #7412.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6:
[XFRM] STATE: Fix to respond error to get operation if no matching entry exists.
[NET]: Re-fix of doc-comment in sock.h
[6PACK]: Masking bug in 6pack driver.
[NET]: Fix kfifo_alloc() error check.
[UDP]: Make udp_encap_rcv use pskb_may_pull
[NETFILTER]: H.323 conntrack: fix crash with CONFIG_IP_NF_CT_ACCT
The tda10086 causes an oops (divide by zero) if a zero symbol rate is used;
this prevents this.
Signed-off-by: Andrew de Quincey <adq_dvb@lidskialf.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
The old code would accept any device on the same i2c address as the
saa711x chips as an saa711x. However, this fails with saa717x chips,
which use that same address and so are misdetected as a saa7111. Now
check whether the chip is really a saa711x model.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Sparse noticed a lock imbalance in read_from_buf(). Further inspection shows
that the lock should not be held when the function exits.
This adds a spin_unlock_irqrestore(), so that every exit path of the
read_from_buf() function is consistent. The unlock was missing on an error
path.
Signed-off-by: Ira W. Snyder <devel@irasnyder.com>
Signed-off-by: Hans J. Koch <koch@hjk-az.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
New module parameter diseqc_method for cards with subsystem-id 13c2:1003.
- 0: unreliable method, can be used by all board revisions (default)
- 1: reliable method, works for newer board layouts only
The parameter has no effect for cards with other subsystem-ids.
Signed-off-by: Oliver Endriss <o.endriss@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Fixes to DISEQC on these cards inadvertently broke normal tone/voltage
signalling. This restores the necessary function.
Signed-off-by: Andrew de Quincey <adq_dvb@lidskialf.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Looks like a broken masking to me, binary not is used where bitwise
not was intended.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This is a bug. When checking for ati_remote->outbuf we free freeing
ati_remote->inbuf so we end up freeing ati_remote->inbuf twice.
Also the checks for 'ati_remote->inbuf != NULL' and 'ati_remote->outbuf !=
NULL' are redundant as usb_buffer_free() does this.
Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Acked-by: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
The return value of platform_device_register_simple() should be checked by
IS_ERR().
This patch also fix misc_register() error case. Because misc_register()
returns error code.
Cc: Sebastien Bouchard <sebastien.bouchard@ca.kontron.com>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This patch removes a module_exit function that sgiioc4 should not have had.
It seems that the IDE layer doesn't support submodule unloading. sgiioc4 was
the only driver in drivers/ide/pci that had an exit function. After an
unload, the devices would stay around and the next attempt to reference would
crash...
Signed-off-by: Jeremy Higdon <jeremy@sgi.com>
Acked-by: "Bartlomiej Zolnierkiewicz" <bzolnier@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
dev->devt_attr is allocated in device_add() but it is never freed in
device_del() in the drivers/base/core.c file (reported by kmemleak).
Signed-off-by: Catalin Marinas <catalin.marinas@gmail.com>
Acked-by: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
The correct order is: NULL check before dereference
This was a guaranteed NULL dereference with debugging enabled since
rs5c372_sysfs_show_osc() does actually pass NULL...
Spotted by the Coverity checker.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
I got a lockdep warning when running "rtctest" so I though it'd be good
to see what was up.
- The warning was for rtc->irq_task_lock, gotten from rtc_update_irq()
by irq handlerss ... but in a handful of other cases, grabbed without
blocking IRQs.
- Some callers to rtc_update_irq() were not ensuring IRQs were blocked,
yet the routine expects that; make sure all callers block IRQs.
It would appear that RTC API tests haven't been part of anyone's kernel
regression test suite recently, at least not with lockdep running.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
The RTC framework has an irq_set_freq() method that should be used to manage
the periodic IRQ frequency, but the current ioctl logic doesn't know how to do
that. This patch teaches it how.
This means that drivers implementing irq_set_freq() will automatically support
RTC_IRQP_{READ,SET} ioctls; that logic doesn't need duplication within the
driver.
[akpm@osdl.org: export rtc_irq_set_freq]
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
processor_perflib.c::acpi_processor_ppc_notifier() check if the value
returned by the processor's _PPC method is 0 and return failed if so.
This is wrong since 0 indicate that the bios think the processor can go
to the highest frequency. This patch for example fix the HP NX 6125 to
allow its highest frequency to be available.
Signed-off-by: Bruno Ducrot <ducrot@poupinou.org>
Cc: "Pallipadi, Venkatesh" <venkatesh.pallipadi@intel.com>
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Not all graphic page remappers support physical addresses over the 4GB
mark for remapping, so while some do (the AMD64 GART always did, and I
just fixed the i965 to do so properly), we're safest off just forcing
GFP_DMA32 allocations to make sure graphics pages get allocated in the
low 32-bit address space by default.
AGP sub-drivers that really care, and can do better, could just choose
to implement their own allocator (or we could add another "64-bit safe"
default allocator for their use), but quite frankly, you're not likely
to care in practice.
So for now, this trivial change means that we won't be allocating pages
that we can't map correctly by mistake on x86-64.
[ On traditional 32-bit x86, this could never happen, because GFP_KERNEL
would never allocate any highmem memory anyway ]
Acked-by: Andi Kleen <ak@suse.de>
Acked-by: Dave Jones <davej@redhat.com>
Cc: Eric Anholt <eric@anholt.net>
Cc: Keith Packard <keithp@keithp.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This introduces a i965-specific "mask_memory()" function that knows
about the extended physical addresses that the i965 supports. This
allows us to correctly map in physical memory in the >4GB range into the
GTT.
Also simplify/clean-up the i965 case for the aperture sizing by just
returning the fixed 512kB size from "fetch_size()". We don't really
care that not all of the aperture may be visible - the only thing that
cares about the aperture size is the Intel "stolen memory" calculation,
which depends on the fixed size.
Cc: Keith Packard <keithp@keithp.com>
Cc: Eric Anholt <eric@anholt.net>
Cc: Dave Jones <davej@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6:
[TG3]: Add missing unlock in tg3_open() error path.
[IPV6]: Fix address/interface handling in UDP and DCCP, according to the scoping architecture.
[IRDA]: Lockdep fix.
[BLUETOOTH]: Fix unaligned access in hci_send_to_sock.
[XFRM]: nlmsg length not computed correctly in the presence of subpolicies
[XFRM]: Sub-policies broke policy events
[IGMP]: Fix IGMPV3_EXP() normalization bit shift value.
[Bluetooth] Ignore L2CAP config requests on disconnect
[Bluetooth] Always include MTU in L2CAP config responses
[Bluetooth] Check if RFCOMM session is still attached to the TTY
[Bluetooth] Handling pending connect attempts after inquiry
[Bluetooth] Attach low-level connections to the Bluetooth bus
[IPV6] IP6TUNNEL: Add missing nf_reset() on input path.
[IPV6] IP6TUNNEL: Delete all tunnel device when unloading module.
[IPV6] ROUTE: Do not enable router reachability probing in router mode.
[IPV6] ROUTE: Prefer reachable nexthop only if the caller requests.
[IPV6] ROUTE: Try to use router which is not known unreachable.
Sparse noticed a locking imbalance in tg3_open(). This patch adds an
unlock to one of the error paths, so that tg3_open() always exits
without the lock held.
Signed-off-by: Ira W. Snyder <kernel@irasnyder.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
ipath uses skb functions and won't build without CONFIG_NET.
Spotted by Randy Dunlap.
Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This is a quick hack to overcome the fact that SRCU currently does not
allow static initializers, and we need to sometimes initialize those
things before any other initializers (even "core" ones) can do so.
Currently we don't allow this at all for modules, and the only user that
needs is right now is cpufreq. As reported by Thomas Gleixner:
"Commit b4dfdbb3c7 ("[PATCH] cpufreq:
make the transition_notifier chain use SRCU breaks cpu frequency
notification users, which register the callback > on core_init
level."
Cc: Thomas Gleixner <tglx@timesys.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Arjan van de Ven <arjan@infradead.org>
Cc: Andrew Morton <akpm@osdl.org>,
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Fix printk format warnings:
drivers/char/ftape/zftape/zftape-buffers.c:87: warning: format '%d' expects type
'int', but argument 3 has type 'size_t'
drivers/char/ftape/zftape/zftape-buffers.c:104: warning: format '%d' expects type
'int', but argument 3 has type 'size_t'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Having unbound PCMCIA devices: doing a 'find /sys' after a 'rmmod pcmcia'
gives an oops because the pcmcia_device is not unregisterd from the driver
core.
fixes bugzilla #7481
Signed-off-by: Daniel Ritz <daniel.ritz@gmx.ch>
Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Pavol Gono <Palo.Gono@gmail.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This reverts commit 37605a6900.
Again.
This same bug has now been introduced twice: it was done earlier by
commit b8d35192c5, only to be reverted
last time in commit 72945b2b90.
We must NOT try to queue up notify handlers to another thread than the
normal ACPI execution thread, because the notifications on some systems
seem to just keep on accumulating until we run out of memory and/or
threads.
Keeping events within the one deferred execution thread automatically
throttles the events properly.
At least the Compaq N620c will lock up completely on the first thermal
event without this patch reverted.
Cc: David Brownell <david-b@pacbell.net>
Cc: Len Brown <len.brown@intel.com>
Cc: Alexey Starikovskiy <alexey.y.starikovskiy@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
a number of small patches:
- include notifier.h include file
- re-arrange prototype functions
- remove =0 initializations
- change printk logging levels to what's used in other drivers
- /dev/watchdog is a VFS so use nonseekable_open
- Style: Instead of "if (constant op function_or_variable)"
we prefer "if (function_or_variable op constant)"
- arg is a __user pointer
- use MAX_TIMEOUT_SECONDS instead of 32 in WDIOC_SETTIMEOUT
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Locate parameter descriptions close to parameter definition -
not in bottom of file.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
This is a driver for the on-chip watchdog device found on some
MIPS RM9000 processors.
Signed-off-by: Thomas Koeller <thomas.koeller@baslerweb.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
I moved to a different town and my old snail-mail address is invalid
now. Also, there's no need at all to have any address like that in
the sources, so remove it completely.
Signed-off-by: Jan-Benedict Glaw <jbglaw@lug-owl.de>
Benh points out that the msgs[0].flags entry never got initialized, and
since it's an automatic stack allocation, it could have any random
value, which is bad.
Rewrite the initializer to explicitly initialize all fields of the small
i2c_msg structure array we generate. Just to keep it all obvious, let's
handle msgs[1].buf in the same initializer while we're at it, instead of
initializing that one separately later.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
When radeonfb was changed to use the new "generic" ddc, a bit of
code initializing the GPIO lines was lost, causing it to not work
if the firmware didn't configure them properly, which seems to
happen on some cards.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6:
aoe: Add forgotten NULL at end of attribute list in aoeblk.c
debugfs: check return value correctly
W1: ioremap balanced with iounmap
This caused the system to stall when the aoe module was loaded. The
error was introduced in commit 4ca5224f3e
Signed-off-by: Dennis Stosberg <dennis@stosberg.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
ioremap must be balanced with iounmap in error path.
Please consider for 2.6.19.
Signed-off-by: Amol Lad <amol@verismonetworks.com>
Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Adds support for HTC Smart Phones in modem mode (as opposed to sync
mode). Loads and works with pppd on my T-Mobile SDA.
Signed-off-by: Alex Sanks <alex@sanks.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
usb_get_device_descriptor() used to convert several descriptor fields to host
CPU's byte order. Now that it doesn't convert them anymore, update the
documentation to reflect this.
Signed-off-by: Laurent Pinchart <laurent.pinchart@skynet.be>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
For some reason the unusual_devs.h entry for Sony Ericsson P990i had
three identical copies in a wrong place in the file in addition to the
correct entry.
Signed-off-by: Sergey Vlasov <vsu@altlinux.ru>
Signed-off-by: Phil Dibowitz <phil@ipom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The new Core2 Duo MacBook Pro have a new keyboard+trackpad device.
The following patch adds the needed HID quirk for the Fn key.
Signed-off-by: Julien BLACHE <jb@jblache.org>
Signed-off-by: Vojtech Pavlik <vojtech@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
USB Storage: this patch adds support for Sony Ericsson P990i
Signed-off-by: Jan Mate <mate@fiit.stuba.sk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
similar to the version in adbhid_input_register(): The '<>' key and the
'^°' key on a german keyboard is swapped. Provide correct keys to
userland, external USB keyboards will not work correctly when the
'badmap'/'goodmap' workarounds from xkeyboard-config are used.
It is expected that distributions drop the badmap/goodmap part from
keycodes/macintosh in the xkeyboard-config package.
This is probably 2.6.18.x material, if major distros settle on 2.6.18.
Signed-off-by: Olaf Hering <olh@suse.de>
Cc: Dmitry Torokhov <dtor@mail.ru>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
When a suspended OHCI controller sees a port's status change, it sets
both the Root-Hub-Status-Change and the Resume-Detect bits in the
Interrupt Status register. Processing both these bits, the driver
tries to resume the root hub twice!
This patch (as807) fixes the bug by ignoring RD if RHSC is set. It
also prints a slightly more informative log message when a
remote-wakeup event occurs.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Recently this entry's bcd scope was narrowed so as not to falsly apply
to bcd's other than 0x0110. But while it breaks those of a larger bcd,
it is still needed for those of a smaller bcd - so this changes the
lower bcd limit to 0x0000.
Signed-off-by: Phil Dibowitz <phil@ipom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Please add a usb pid to the ftdi_sio driver. The pid is used by dmx4all
dmx-interfaces (for stage lighting).
The interfaces are using the usb-id 0403:c850. I added the id to the driver
and it works perfectly. I added a patch for linux 2.6.18.1, too.
From: Frank Sievertsen <frank@sievertsen.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Adds the vendor and prodcut id for a RFID construction kit from the
Elektor Electronics magazine, september 2006.
From: Kjell Myksvoll <kmyksvo@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as822) prevents the OHCI autostop mechanism from kicking in
if the root hub is not able or not allowed to issue wakeup requests.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
IPoIB assumes that high (reserved) octet in the hardware address is 0,
and copies it into the QPN. This violates RFC 4391 (which requires
that the high 8 bits are ignored on receive), and will result in an
invalid QPN being used when interoperating with IPoIB connected mode.
Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6:
[TG3]: Disable TSO on 5906 if CLKREQ is enabled.
[TCP]: Fix up sysctl_tcp_mem initialization.
[NETFILTER]: ip6_tables: use correct nexthdr value in ipv6_find_hdr()
[NETFILTER]: ip6_tables: fixed conflicted optname for getsockopt
[NETFILTER]: Use pskb_trim in {ip,ip6,nfnetlink}_queue
[NETFILTER]: nfnetlink_log: fix byteorder of NFULA_SEQ_GLOBAL
[TG3]: Increase 5906 firmware poll time.
ATAPI devices transfer fixed number of bytes for CDBs (12 or 16). Some
ATAPI devices choke when shorter CDB is used and the left bytes contain
garbage. Block SG_IO cleared left bytes but SCSI SG_IO didn't. This patch
makes SCSI SG_IO clear it and simplify CDB clearing in block SG_IO.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Mathieu Fluhr <mfluhr@nero.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Douglas Gilbert <dougg@torque.net>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Cc: <stable@kernel.org>
Acked-by: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
platform_device_register_simple() returns error code as pointer when it
fails. The return value should be checked by IS_ERR().
Cc: Abhay Salunke <abhay_salunke@dell.com>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Matt Domsch <Matt_Domsch@dell.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
The PCI Express and Hypertransport chip-specific source files should only
be built when the kernel has the capability of actually compiling them.
This fixes the driver build on, for example, ia64.
Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Roland Dreier <rolandd@cisco.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Finally add the third PowerBook Wallstreet 233MHz model to the list of
known display resolutions.
Without this change, a 640x480 video mode is used. A workaround so far was
to boot with 'video=atyfb:vmode:14'
Signed-off-by: Olaf Hering <olaf@aepfle.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Cc: Solomon Peachy <pizza@shaftnet.org>
Cc: James Simmons <jsimmons@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Make the drivers' names less generic to avoid possible confusion in future,
as was requested by Russell King.
Signed-off-by: Vitaly Wool <vwool@ru.mvista.com>
Acked-by: James Simmons <jsimmons@infradead.org>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Due to hardware errata, TSO must be disabled if the PCI Express clock
request is enabled on 5906. The chip may hang when transmitting TSO
frames if CLKREQ is enabled.
Update version to 3.69.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Newer 5906 bootcode needs about 7ms to finish resetting so the poll
firmware loop was changed to maximum 20ms.
Signed-off-by: Gary Zambrano <zambrano@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Acked-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
The windfarm code, in it's current incarnation, uses request_module() to
load the various submodules it needs for a given platform so that only
the main platform control module needs to be modprobed. However, it was
missing various bits. This fixes it. In the future, we'll use some
hotplug mecanisms to try to get all of this auto-loaded on the platforms
where it matters but that isn't ready yet.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
port is dereferenced even if it is NULL. Dereference it _after_ the
check if (!port)... Thanks Eric <ef87@yahoo.com> for reporting this.
This fixes
http://bugzilla.kernel.org/show_bug.cgi?id=7527
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
When building a monolithic kernel, the load order of drivers does not
work for SAS libata users, resulting in a kernel oops.
Convert libata to use subsys_initcall instead of module_init, which
ensures that libata gets loaded before any LLDD.
This is the same thing that scsi core does to solve the problem. The
load order problem was observed on ipr SAS adapters and should exist for
other SAS users as well.
Signed-off-by: Brian King <brking@us.ibm.com>
Acked-by: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Fix binary/logical operator typo which leads to unreachable code. Noticed
while looking at other issues; I don't have the relevant hardware to test
this.
Signed-off-by: Nathan Lynch <ntl@pobox.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Acked-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Stray bracket in debug code.
Signed-off-by: Nicolas Kaiser <nikai@nikai.net>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Fix http://bugzilla.kernel.org/show_bug.cgi?id=7264
We need to target this quirk a little more tightly, using the T20 DMI string.
Cc: Pavel Kysilka <goldenfish@bsys.cz>
Acked-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Daniel Ritz <daniel.ritz@gmx.ch>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
A curious thing happens, however, when ata_qc_new_init fails to get
an ata_queued_cmd:
First, ata_qc_new_init handles the failure like this:
cmd->result = (DID_OK << 16) | (QUEUE_FULL << 1);
done(cmd);
Then, we return to ata_scsi_translate and do this:
err_mem:
cmd->result = (DID_ERROR << 16);
done(cmd);
It appears to me that first we set a status code indicating that we're
ok but the device queue is full and finish the command, but then
we blow away that status code and replace it with an error flag and
finish the command a second time! That does not seem to be desirable
behavior since we merely want the I/O to wait until a command slot
frees up, not send errors up the block layer.
In the err_mem case, we should simply exit out of ata_scsi_translate
instead.
Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Helps for PATA but SATA bridged devices lie and always set all the bits
so will need the error handling fixes from Tejun.
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc:
MMC: Do not set unsupported bits in OCR response
MMC: Poll card status after rescanning cards
* 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband:
IB/mad: Fix race between cancel and receive completion
RDMA/amso1100: Fix && typo
RDMA/amso1100: Fix unitialized pseudo_netdev accessed in c2_register_device
IB/ehca: Activate scaling code by default
IB/ehca: Use named constant for max mtu
IB/ehca: Assure 4K alignment for firmware control blocks
