23 Mar, 2011
22 commits
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In systems with multiple framebuffer devices, one of the devices might be
blanked while another is unblanked. In order for the backlight blanking
logic to know whether to turn off the backlight for a particular
framebuffer's blanking notification, it needs to be able to check if a
given framebuffer device corresponds to the backlight.This plumbs the check_fb hook from core backlight through the
pwm_backlight helper to allow platform code to plug in a check_fb hook.Signed-off-by: Robert Morell
Cc: Richard Purdie
Cc: Arun Murthy
Cc: Linus Walleij
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The following symbols are needlessly defined global: jornada_bl_init,
jornada_bl_exit, jornada_lcd_init, jornada_lcd_exit.Make them static.
Signed-off-by: Axel Lin
Acked-by: Kristoffer Ericson
Cc: Richard Purdie
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
apple_bl uses ACPI interfaces (data & code), so it should depend on ACPI.
drivers/video/backlight/apple_bl.c:142: warning: 'struct acpi_device' declared inside parameter list
drivers/video/backlight/apple_bl.c:142: warning: its scope is only this definition or declaration, which is probably not what you want
drivers/video/backlight/apple_bl.c:201: warning: 'struct acpi_device' declared inside parameter list
drivers/video/backlight/apple_bl.c:215: error: variable 'apple_bl_driver' has initializer but incomplete type
drivers/video/backlight/apple_bl.c:216: error: unknown field 'name' specified in initializer
...Signed-off-by: Randy Dunlap
Acked-by: Matthew Garrett
Cc: Richard Purdie
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
It works on hardware other than Macbook Pros, and it works on GPUs other
than Nvidia. It should even work on iMacs, so change the name to match
reality more precisely and include an alias so existing users don't get
confused.Signed-off-by: Matthew Garrett
Acked-by: Richard Purdie
Cc: Mourad De Clerck
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The SMI-based backlight control functionality may fail to work if the
system is running under EFI rather than BIOS. Check that the hardware
responds as expected, and exit if it doesn't.Signed-off-by: Matthew Garrett
Acked-by: Richard Purdie
Cc: Mourad De Clerck
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This driver only has to deal with two different classes of hardware, but
right now it needs new DMI entries for every new machine. It turns out
that there's an ACPI device that uniquely identifies Apples with backlights,
so this patch reworks the driver into an ACPI one, identifies the hardware
by checking the PCI vendor of the root bridge and strips out all the DMI
code. It also changes the config text to clarify that it works on devices
other than Macbook Pros and GPUs other than nvidia.Signed-off-by: Matthew Garrett
Acked-by: Richard Purdie
Cc: Mourad De Clerck
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Dual-GPU machines may provide more than one ACPI backlight interface. Tie
the backlight device to the GPU in order to allow userspace to identify
the correct interface.Signed-off-by: Matthew Garrett
Cc: Richard Purdie
Cc: Chris Wilson
Cc: David Airlie
Cc: Alex Deucher
Cc: Ben Skeggs
Cc: Zhang Rui
Cc: Len Brown
Cc: Jesse Barnes
Tested-by: Sedat Dilek
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
We may eventually end up with per-connector backlights, especially with
ddcci devices. Make sure that the parent node for the backlight device is
the connector rather than the PCI device.Signed-off-by: Matthew Garrett
Cc: Richard Purdie
Cc: Chris Wilson
Cc: David Airlie
Cc: Alex Deucher
Acked-by: Ben Skeggs
Cc: Zhang Rui
Cc: Len Brown
Cc: Jesse Barnes
Tested-by: Sedat Dilek
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Allows e.g. power management daemons to control the backlight level. Inspired
by the corresponding code in radeonfb.[mjg@redhat.com: updated to add backlight type and make the connector the parent device]
Signed-off-by: Michel Dänzer
Signed-off-by: Matthew Garrett
Cc: Richard Purdie
Cc: Chris Wilson
Cc: David Airlie
Acked-by: Alex Deucher
Cc: Ben Skeggs
Cc: Zhang Rui
Cc: Len Brown
Cc: Jesse Barnes
Tested-by: Sedat Dilek
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
There may be multiple ways of controlling the backlight on a given
machine. Allow drivers to expose the type of interface they are
providing, making it possible for userspace to make appropriate policy
decisions.Signed-off-by: Matthew Garrett
Cc: Richard Purdie
Cc: Chris Wilson
Cc: David Airlie
Cc: Alex Deucher
Cc: Ben Skeggs
Cc: Zhang Rui
Cc: Len Brown
Cc: Jesse Barnes
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Don't allow everybody to change LED settings.
Signed-off-by: Vasiliy Kulikov
Cc: Richard Purdie
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Don't allow everybody to change LED settings.
Signed-off-by: Vasiliy Kulikov
Cc: Richard Purdie
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add a ld9040 amoled panel driver.
Signed-off-by: Donghwa Lee
Signed-off-by: Kyungmin Park
Signed-off-by: Inki Dae
Cc: Richard Purdie
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
And fix a typo.
Signed-off-by: Uwe Kleine-König
Cc: Lars-Peter Clausen
Cc: Richard Purdie
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Simple backlight driver for National Semiconductor LM3530. Presently only
manual mode is supported, PWM and ALS support to be added.Signed-off-by: Shreshtha Kumar Sahu
Cc: Linus Walleij
Cc: Richard Purdie
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
There is a move to deprecate bus-specific PM operations and move to using
dev_pm_ops instead in order to reduce the amount of boilerplate code in
buses and facilitiate updates to the PM core. Do this move for the bs2802
driver.[akpm@linux-foundation.org: fix warnings]
Signed-off-by: Mark Brown
Cc: Kim Kyuwon
Cc: Kim Kyuwon
Cc: Richard Purdie
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
* git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
rbd: use watch/notify for changes in rbd header
libceph: add lingering request and watch/notify event framework
rbd: update email address in Documentation
ceph: rename dentry_release -> d_release, fix comment
ceph: add request to the tail of unsafe write list
ceph: remove request from unsafe list if it is canceled/timed out
ceph: move readahead default to fs/ceph from libceph
ceph: add ino32 mount option
ceph: update common header files
ceph: remove debugfs debug cruft
libceph: fix osd request queuing on osdmap updates
ceph: preserve I_COMPLETE across rename
libceph: Fix base64-decoding when input ends in newline. -
Using delayed-work for tty flip buffers ends up causing us to wait for
the next tick to complete some actions. That's usually not all that
noticeable, but for certain latency-critical workloads it ends up being
totally unacceptable.As an extreme case of this, passing a token back-and-forth over a pty
will take two ticks per iteration, so even just a thousand iterations
will take 8 seconds assuming a common 250Hz configuration.Avoiding the whole delayed work issue brings that ping-pong test-case
down to 0.009s on my machine.In more practical terms, this latency has been a performance problem for
things like dive computer simulators (simulating the serial interface
using the ptys) and for other environments (Alan mentions a CP/M emulator).Reported-by: Jef Driesen
Acked-by: Greg KH
Acked-by: Alan Cox
Signed-off-by: Linus Torvalds -
Send notifications when we change the rbd header (e.g. create a snapshot)
and wait for such notifications. This allows synchronizing the snapshot
creation between different rbd clients/rools.Signed-off-by: Yehuda Sadeh
Signed-off-by: Sage Weil -
* 'for-linus/2639/i2c-2' of git://git.fluff.org/bjdooks/linux:
i2c-pxa2xx: Don't clear isr bits too early
i2c-pxa2xx: Fix register offsets
i2c-pxa2xx: pass of_node from platform driver to adapter and publish
i2c-pxa2xx: check timeout correctly
i2c-pxa2xx: add support for shared IRQ handler
i2c-pxa2xx: Add PCI support for PXA I2C controller
ARM: pxa2xx: reorganize I2C files
i2c-pxa2xx: use dynamic register layout
i2c-mxs: set controller to pio queue mode after reset
i2c-eg20t: support new device OKI SEMICONDUCTOR ML7213 IOH
i2c/busses: Add support for Diolan U2C-12 USB-I2C adapter -
Ensure that we kill discard requests after logical block provisioning
has been disabled in sysfs.Signed-off-by: Martin K. Petersen
Reported-by: Geert Uytterhoeven
Reviewed-by: Jeff Moyer
Signed-off-by: Linus Torvalds -
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (33 commits)
IPVS: Use global mutex in ip_vs_app.c
ipvs: fix a typo in __ip_vs_control_init()
veth: Fix the byte counters
net ipv6: Fix duplicate /proc/sys/net/ipv6/neigh directory entries.
macvlan: Fix use after free of struct macvlan_port.
net: fix incorrect spelling in drop monitor protocol
can: c_can: Do basic c_can configuration _before_ enabling the interrupts
net/appletalk: fix atalk_release use after free
ipx: fix ipx_release()
snmp: SNMP_UPD_PO_STATS_BH() always called from softirq
l2tp: fix possible oops on l2tp_eth module unload
xfrm: Fix initialize repl field of struct xfrm_state
netfilter: ipt_CLUSTERIP: fix buffer overflow
netfilter: xtables: fix reentrancy
netfilter: ipset: fix checking the type revision at create command
netfilter: ipset: fix address ranges at hash:*port* types
niu: Rename NIU parent platform device name to fix conflict.
r8169: fix a bug in rtl8169_init_phy()
bonding: fix a typo in a comment
ftmac100: use resource_size()
...
22 Mar, 2011
18 commits
-
Commit 44540960 "veth: move loopback logic to common location" introduced
a bug in the packet counters. I don't understand why that happened as it
is not explained in the comments and the mut check in dev_forward_skb
retains the assumption that skb->len is the total length of the packet.I just measured this emperically by setting up a veth pair between two
noop network namespaces setting and attempting a telnet connection between
the two. I saw three packets in each direction and the byte counters were
exactly 14*3 = 42 bytes high in each direction. I got the actual
packet lengths with tcpdump.So remove the extra ETH_HLEN from the veth byte count totals.
Signed-off-by: Eric W. Biederman
Signed-off-by: David S. Miller -
When the macvlan driver was extended to call unregisgter_netdevice_queue
in 23289a37e2b127dfc4de1313fba15bb4c9f0cd5b, a use after free of struct
macvlan_port was introduced. The code in dellink relied on unregister_netdevice
actually unregistering the net device so it would be safe to free macvlan_port.Since unregister_netdevice_queue can just queue up the unregister instead of
performing the unregiser immediately we free the macvlan_port too soon and
then the code in macvlan_stop removes the macaddress for the set of macaddress
to listen for and uses memory that has already been freed.To fix this add a reference count to track when it is safe to free the macvlan_port
and move the call of macvlan_port_destroy into macvlan_uninit which is guaranteed
to be called after the final macvlan_port_close.Signed-off-by: Eric W. Biederman
Signed-off-by: David S. Miller -
I ran into some trouble while testing the SocketCAN driver for the BOSCH
C_CAN controller. The interface is not correctly initialized, if I put
some CAN traffic on the line, _while_ the interface is being started
(which means: the interface doesn't come up correcty, if there's some RX
traffic while doing 'ifconfig can0 up').The current implementation enables the controller interrupts _before_
doing the basic c_can configuration. I think, this should be done the
other way round.The patch below fixes things for me.
Signed-off-by: Jan Altenberg
Acked-by: Kurt Van Dijck
Acked-by: Wolfgang Grandegger
Signed-off-by: David S. Miller -
isr is passed later into i2c_pxa_irq_txempty and
i2c_pxa_irq_rxfull and they may use some other bits
than irq sources.Signed-off-by: Vasily Khoruzhick
Signed-off-by: Ben Dooks -
…r-2639/i2c/i2c-imx' into for-linus/2639/i2c-2
-
This patch reduces the number of sequential pointer derefs in
drivers/scsi/scsi_error.cThis has been submitted a number of times over a couple of years. I
believe this version adresses all comments it has gathered over time.
Please apply or reject with a reason.The benefits are:
- makes the code easier to read. Lots of sequential derefs of the same
pointers is not easy on the eye.- theoretically at least, just dereferencing the pointers once can
allow the compiler to generally slightly faster code, so in theory
this could also be a micro speed optimization.- reduces size of object file (tiny effect: on x86-64, in at least one
configuration, the text size decreased from 9439 bytes to 9400)- removes some pointless (mostly trailing) whitespace.
Signed-off-by: Jesper Juhl
Signed-off-by: Linus Torvalds -
Remove incorrect Matrox G200eV support that was previously added by
commit e3a1938805d2e81b27d3d348788644f3bad004f2A serious issue with the incorrect G200eV support that reproduces on the
Matrox G200eV equipped IBM x3650 M2 is the total lack of text (login
banner, login prompt, etc) on the console when X is not running and
total lack of text on all of the virtual consoles after X is started.Any concerns that the incorrect code (upstream since October 2008) has
been successfully used on non-IBM G200eV equipped system(s) appear to be
unwarranted. In addition to the serious/non-intermittent nature of
issues that have been spotted on IBM systems, complete removal of the
incorrect code is clearly supported by the following Matrox (Yannick
Heneault) provided input:
"It impossible that this patch should have work on a system.
The patch only declare the G200eV as a regular G200 which is
not case. Many registers are different, including at least the
PLL programming sequence. If the G200eV is programmed like a
regular G200, it will not display anything."v1 - Initial patch that removed the incorrect code for _all_
G200eV equipped systems.
v2 - Darrick Wong provided patch that blacklisted the incorrect
code on G200eV equipped IBM systems leaving it enabled on
all G200eV equipped non-IBM systems.
v3 - Same code changes included with v1 plus additional
justification for complete removal of the incorrect code.Signed-off-by: Gary Hade
Cc: Darrick J. Wong
Cc: Krzysztof Helt
Cc: Petr Vandrovec
Cc: Andrew Morton
Cc: Linus Torvalds
Cc: Yannick Heneault
Cc: Christian Toutant
Signed-off-by: Linus Torvalds -
* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
hwmon: (ads1015) Make gain and datarate configurable
hwmon: (ads1015) Drop dynamic attribute group
hwmon: Add support for Texas Instruments ADS1015
hwmon: New driver for SMSC SCH5627
hwmon: (abituguru*) Update my email address
hwmon: (lm75) Speed up detection
hwmon: (lm75) Add detection of the National Semiconductor LM75A
hp_accel: Fix driver name
Move lis3lv02d drivers to drivers/misc
Move hp_accel to drivers/platform/x86
Let Kconfig handle lis3lv02d dependencies
hwmon: (sht15) Fix integer overflow in humidity calculation
hwmon: (sht15) Spelling fix
hwmon: (w83795) Document pin mapping -
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
firewire: core: ignore link-active bit of new nodes, fix device recognition
firewire: sbp2: revert obsolete 'fix stall with "Unsolicited response"'
firewire: core: increase default SPLIT_TIMEOUT value
firewire: ohci: Misleading kfree in ohci.c::pci_probe/remove
firewire: ohci: omit IntEvent.busReset check rom AT queueing
firewire: ohci: prevent starting of iso contexts with empty queue
firewire: ohci: prevent iso completion callbacks after context stop
firewire: core: rename some variables
firewire: nosy: should work on Power Mac G4 PCI too
firewire: core: fix card->reset_jiffies overflow
firewire: cdev: remove unneeded reference
firewire: cdev: always wait for outbound transactions to complete
firewire: cdev: remove unneeded idr_find() from complete_transaction()
firewire: ohci: log dead DMA contexts -
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6:
[PARISC] Convert to new irq_chip functions
[PARISC] fix per-cpu flag problem in the cpu affinity checkers
[PARISC] fix vmap flush/invalidate
eliminate special FLUSH flag from page table
parisc: flush pages through tmpalias space -
Configuration for ads1015 gain and datarate is possible via
devicetree or platform data.This is a followup patch to previous ads1015 patches on Jean Delvares
tree.Signed-off-by: Dirk Eibach
Signed-off-by: Jean Delvare -
It is cheaper to handle attributes individually.
Signed-off-by: Jean Delvare
Acked-by: Dirk Eibach -
Signed-off-by: Dirk Eibach
Signed-off-by: Jean Delvare -
SMSC SCH5627 Super I/O chips include complete hardware monitoring
capabilities. They can monitor up to 5 voltages, 4 fans and 8
temperatures.The hardware monitoring part of the SMSC SCH5627 is accessed by talking
through an embedded microcontroller. An application note describing the
protocol for communicating with the microcontroller is available upon
request. Please mail me if you want a copy.Signed-off-by: Hans de Goede
Signed-off-by: Jean Delvare -
Signed-off-by: Hans de Goede
Signed-off-by: Jean Delvare -
Make the LM75/LM75A device detection faster:
* Don't read the current temperature value when we don't use it.
* Check for unused bits in the configuration register as soon as we
have read its value.
* Don't use word reads, not all devices support this, and some which
don't misbehave when you try.
* Check for cycling register values every 40 register addresses
instead of every 8, it's 5 times faster and just as efficient.Some of these improvements come straight from the user-space
sensors-detect script, so both detection routines are in line now.Signed-off-by: Jean Delvare
Cc: Len Sorensen
Acked-by: Guenter Roeck -
Add support for detection of the National Semiconductor LM75A using the ID
register value.Signed-off-by: Len Sorensen
Signed-off-by: Jean Delvare -
I suspect that the "lis3lv02d" driver name is a legacy from before
the split into several modules. Use a specific name for the hp_accel
driver, for better error messages and easier investigation of issues.Signed-off-by: Jean Delvare
Acked-by: Guenter Roeck
Acked-by: Eric Piel
Acked-by: Jonathan Cameron
Tested-by: Eric Piel
Tested-by: Takashi Iwai
