23 Jul, 2010
1 commit
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Workqueue can now handle high concurrency. Convert drm_crtc_helper to
use system_nrt_wq instead of slow-work. The conversion is mostly
straight forward. One difference is that drm_helper_hpd_irq_event()
no longer blocks and can be called from any context.Signed-off-by: Tejun Heo
Acked-by: David Airlie
Cc: dri-devel@lists.freedesktop.org
02 Jul, 2010
1 commit
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libata has two concurrency related limitations.
a. ata_wq which is used for polling PIO has single thread per CPU. If
there are multiple devices doing polling PIO on the same CPU, they
can't be executed simultaneously.b. ata_aux_wq which is used for SCSI probing has single thread. In
cases where SCSI probing is stalled for extended period of time
which is possible for ATAPI devices, this will stall all probing.#a is solved by increasing maximum concurrency of ata_wq. Please note
that polling PIO might be used under allocation path and thus needs to
be served by a separate wq with a rescuer.#b is solved by using the default wq instead and achieving exclusion
via per-port mutex.Signed-off-by: Tejun Heo
Acked-by: Jeff Garzik
29 Jun, 2010
2 commits
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ACPI works need to be executed on cpu0 and acpi/osl.c achieves this by
creating singlethread workqueue and then binding it to cpu0 from a
work which is quite unorthodox. Make it create regular workqueues and
use queue_work_on() instead. This is in preparation of concurrency
managed workqueue and the extra workers won't be a problem after it's
implemented.Signed-off-by: Tejun Heo
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Upcoming workqueue updates will no longer guarantee fixed workqueue to
worker kthread association, so giving RT priority to the irq worker
won't work. Use kthread_worker which guarantees specific kthread
association instead. This also makes setting the priority cleaner.Signed-off-by: Tejun Heo
Cc: Andy Walls
Cc: Andrew Morton
Cc: ivtv-devel@ivtvdriver.org
Cc: linux-media@vger.kernel.org
12 Jun, 2010
8 commits
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
wimax/i2400m: fix missing endian correction read in fw loader
net8139: fix a race at the end of NAPI
pktgen: Fix accuracy of inter-packet delay.
pkt_sched: gen_estimator: add a new lock
net: deliver skbs on inactive slaves to exact matches
ipv6: fix ICMP6_MIB_OUTERRORS
r8169: fix mdio_read and update mdio_write according to hw specs
gianfar: Revive the driver for eTSEC devices (disable timestamping)
caif: fix a couple range checks
phylib: Add support for the LXT973 phy.
net: Print num_rx_queues imbalance warning only when there are allocated queues -
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
PCI: clear bridge resource range if BIOS assigned bad one
PCI: hotplug/cpqphp, fix NULL dereference
Revert "PCI: create function symlinks in /sys/bus/pci/slots/N/"
PCI: change resource collision messages from KERN_ERR to KERN_INFO -
There are devices out there which are PCI Hot-plug controllers with
compaq PCI IDs, but are not bridges, hence have pdev->subordinate
NULL. But cpqphp expects the pointer to be non-NULL.Add a check to the probe function to avoid oopses like:
BUG: unable to handle kernel NULL pointer dereference at 00000050
IP: [] cpqhpc_probe+0x951/0x1120 [cpqphp]
*pdpt = 0000000033779001 *pde = 0000000000000000
...The device here was:
00:0b.0 PCI Hot-plug controller [0804]: Compaq Computer Corporation PCI Hotplug Controller [0e11:a0f7] (rev 11)
Subsystem: Compaq Computer Corporation Device [0e11:a2f8]Signed-off-by: Jiri Slaby
Cc: Greg KH
Signed-off-by: Jesse Barnes -
This reverts commit 75568f8094eb0333e9c2109b23cbc8b82d318a3c.
Since they're just a convenience anyway, remove these symlinks since
they're causing duplicate filename errors in the wild.Acked-by: Alex Chiang
Signed-off-by: Jesse Barnes -
We can often deal with PCI resource issues by moving devices around. In
that case, there's no point in alarming the user with messages like these.
There are many bug reports where the message itself is the only problem,
e.g., https://bugs.launchpad.net/ubuntu/+source/linux/+bug/413419 .Signed-off-by: Bjorn Helgaas
Signed-off-by: Jesse Barnes -
i2400m_fw_hdr_check() was accessing hardware field
bcf_hdr->module_type (little endian 32) without converting to host
byte sex.Reported-by: Данилин Михаил
Signed-off-by: Inaky Perez-Gonzalez
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* 'urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6:
pcmcia: avoid validate_cis failure on CIS override
pcmcia: dev_node removal bugfix
pcmcia: yenta_socket.c Remove extra #ifdef CONFIG_YENTA_TI
pcmcia: only keep saved I365_CSCINT flag if there is no PCI irq
11 Jun, 2010
3 commits
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fix a race at the end of NAPI complete processing, it had
better do __napi_complete() first before re-enable interrupt.Signed-off-by:Figo.zhang
Signed-off-by: David S. Miller
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The data in the cmd_block buffers may reach the main memory after the
writel() to the device ports. This patch introduces two calls to wmb()
to ensure the relative ordering.Signed-off-by: Catalin Marinas
Tested-by: Colin Tuckley
Cc: Tejun Heo
Cc: Jeff Garzik
Signed-off-by: Jeff Garzik -
cb->atapi.cdb is an array of 16 u8 elements. The call too memset()
would set the first part of the sge array to zero as well. It's not
a packed struct.This one has been around for five years. I found it with Smatch. I
think the reason no one has seen it before is because we normally call
sil24_fill_sg() and that overwrites sge with proper information?Signed-off-by: Dan Carpenter
Signed-off-by: Jeff Garzik
10 Jun, 2010
6 commits
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Realtek confirmed that a 20us delay is needed after mdio_read and
mdio_write operations. Reduce the delay in mdio_write, and add it
to mdio_read too. Also add a comment that the 20us is from hw specs.Signed-off-by: Timo Teräs
Acked-by: Francois Romieu
Signed-off-by: David S. Miller -
Since commit cc772ab7cdcaa24d1fae332d92a1602788644f7a ("gianfar: Add
hardware RX timestamping support"), the driver no longer works on
at least MPC8313ERDB and MPC8568EMDS boards (and possibly much more
boards as well).That's how MPC8313 Reference Manual describes RCTRL_TS_ENABLE bit:
Timestamp incoming packets as padding bytes. PAL field is set
to 8 if the PAL field is programmed to less than 8. Must be set
to zero if TMR_CTRL[TE]=0.I see that the commit above sets this bit, but it doesn't handle
TMR_CTRL. Manfred probably had this bit set by the firmware for
his boards. But obviously this isn't true for all boards in the
wild.Also, I recall that Freescale BSPs were explicitly disabling the
timestamping because of a performance drop.For now, the best way to deal with this is just disable the
timestamping, and later we can discuss proper device tree bindings
and implement enabling this feature via some property.Signed-off-by: Anton Vorontsov
Signed-off-by: David S. Miller -
This patch implements a work around for Erratum 5, "3.3 V Fiber Speed
Selection." If the hardware wiring does not respect this erratum, then
fiber optic mode will not work properly.Signed-off-by: Richard Cochran
Signed-off-by: David S. Miller -
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (21 commits)
mac80211: fix deauth before assoc
iwlwifi: add missing rcu_read_lock
mac80211: fix function pointer check
wireless: remove my name from the maintainer list
ath5k: fix NULL pointer in antenna configuration
p54usb: Add device ID for Dell WLA3310 USB
wl1251: fix a memory leak in probe
ipmr: dont corrupt lists
8139too: fix buffer overrun in rtl8139_init_board
asix: check packet size against mtu+ETH_HLEN instead of ETH_FRAME_LEN
r8169: fix random mdio_write failures
ip6mr: fix a typo in ip6mr_for_each_table()
iwlwifi: move sysfs_create_group to post request firmware
iwlwifi: add name to Maintainers list
iwl3945: fix internal scan
iwl3945: enable stuck queue detection on 3945
ipv6: avoid high order allocations
ath5k: retain promiscuous setting
ath5k: depend on CONFIG_PM_SLEEP for suspend/resume functions
mac80211: process station blockack action frames from work
... -
* 'msm-urgent' of git://codeaurora.org/quic/kernel/dwalker/linux-msm:
mmc: msm: fix compile error on MSM7x30
msm: dma: add completion.h header
09 Jun, 2010
10 commits
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MSM7x30 isn't supported in this driver yet. If ones tried to compile it in
with MSM7x30 configure you get,linux-2.6/drivers/mmc/host/msm_sdcc.c: In function 'msmsdcc_fifo_addr':
linux-2.6/drivers/mmc/host/msm_sdcc.c:165: error: 'MSM_SDC1_PHYS' undeclared (first use in this function)
linux-2.6/drivers/mmc/host/msm_sdcc.c:165: error: (Each undeclared identifier is reported only once
linux-2.6/drivers/mmc/host/msm_sdcc.c:165: error: for each function it appears in.)
linux-2.6/drivers/mmc/host/msm_sdcc.c:167: error: 'MSM_SDC2_PHYS' undeclared (first use in this function)
linux-2.6/drivers/mmc/host/msm_sdcc.c:169: error: 'MSM_SDC3_PHYS' undeclared (first use in this function)
linux-2.6/drivers/mmc/host/msm_sdcc.c:171: error: 'MSM_SDC4_PHYS' undeclared (first use in this function)So we add a Kconfig check to prevent this.
Signed-off-by: Daniel Walker
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10, 233 is allocated officially to /dev/kmview which is shipping in
Ubuntu and Debian distributions. vhost_net seem to have borrowed it
without making a proper request and this causes regressions in the other
distributions.vhost_net can use a dynamic minor so use that instead. Also update the
file with a comment to try and avoid future misunderstandings.cc: stable@kernel.org
Signed-off-by: Alan Cox
[ We should have caught this before 2.6.34 got released. - Linus ]
Signed-off-by: Linus Torvalds -
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
firewire: core: check for 1394a compliant IRM, fix inaccessibility of Sony camcorder -
This reverts commit cfecde435dda78248d6fcdc424bed68d5db6be0b, since it
seems to cause some systems to not come up with any video output at all
(or video that only comes on when X starts up).Fixes bugzilla:
http://bugzilla.kernel.org/show_bug.cgi?id=16163
Reported-and-tested-by: David John
Tested-by: Nick Bowler
Acked-by: Carl Worth
Signed-off-by: Linus Torvalds -
* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (23 commits)
drm/radeon: don't poll tv dac if crtc2 is in use.
drm/radeon: reset i2c valid to avoid incorrect tv-out polling.
drm/nv50: fix iommu errors caused by device reading from address 0
drm/nouveau: off by one in init_i2c_device_find()
nouveau: off by one in nv50_gpio_location()
drm/nouveau: completely fail init if we fail to map the PRAMIN BAR
drm/nouveau: match U/DP script against SOR link
drm/radeon/kms/pm: resurrect printing power states
drm/radeon/kms: add trivial debugging for voltage
drm/radeon/kms/r600+: use voltage from requested clock mode (v3)
drm/radeon/kms/pm: track current voltage (v2)
drm/radeon/kms/pm: Disable voltage adjust on RS780/RS880
drm/radeon/kms: fix typo in printing the HPD info
drm/radeon/kms/pm: add mid profile
drm/radeon/kms/pm: Misc fixes
drm/radeon/kms/combios: fix typo in voltage fix
drm/radeon/kms/evergreen: set accel_enabled
drm/vmwgfx: return -EFAULT for copy_to_user errors
drm/drm_crtc: return -EFAULT on copy_to_user errors
drm/fb: use printk to print out the switching to text mode error.
... -
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6:
[S390] Update default configuration.
[S390] arch/s390/kvm: Use GFP_ATOMIC when a lock is held
[S390] kprobes: add parameter check to module_free()
[S390] appldata/extmem/kvm: add missing GFP_KERNEL flag -
* 'bkl/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing:
hp_sdc_rtc: fix broken ioctl conversion -
Commit 55929332c92 "drivers: Push down BKL into various drivers"
introduced a regression in hp_sdc_rtc, caused by a missing
change of the .unlocked_ioctl pointer to the newly introduced
function.Fixes:
drivers/input/misc/hp_sdc_rtc.c:681: warning: initialization from
incompatible pointer type
drivers/input/misc/hp_sdc_rtc.c:665: warning:
‘hp_sdc_rtc_unlocked_ioctl’ defined but not usedReported-by: Geert Uytterhoeven
Signed-off-by: Arnd Bergmann
Acked-by: Geert Uytterhoeven
Signed-off-by: Frederic Weisbecker -
Using ieee80211_find_sta() needs to be under
RCU read lock, which iwlwifi currently misses,
so fix it.Cc: stable@kernel.org
Reported-by: Miles Lane
Signed-off-by: Johannes Berg
Acked-by: Reinette Chatre
Tested-by: Miles Lane
Signed-off-by: John W. Linville -
Add missing GFP flag to memory allocations. The part in cio only
changes a comment.Signed-off-by: Heiko Carstens
Signed-off-by: Martin Schwidefsky
08 Jun, 2010
9 commits
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So when we added output polling, we'd suddenly use this code more often, and the fact that it always takes over crtc2 and messes with it during probing isn't what we really want to be happening. A more complete fix would to change it to use whatever crtc was free at the time, but for now lets stay simple and just don't poll if crtc2 is already in use.
Although a more correct fix was found I suspect we should do this as well, until we get a chance to readdres the tv out polling issues.
Reported-by: Torsten Kaiser
Signed-off-by: Dave Airlie -
We really don't want to be polling tv-out but since we weren't forcing the
i2c lines to invalid (tv-out has no DDC), we were adding tv connectors to the
polling setup and this was causing blinking on secondary displays.This fixes the regression Torsten reported.
Reported-by: Torsten Kaiser
Tested-by: Torsten Kaiser
Signed-off-by: Dave Airlie -
Signed-off-by: Ben Skeggs
Signed-off-by: Dave Airlie -
dcb->i2c[] has DCB_MAX_NUM_I2C_ENTRIES entries.
Signed-off-by: Dan Carpenter
Signed-off-by: Ben Skeggs
Signed-off-by: Dave Airlie -
If "gpio->line" is 32 then "nv50_gpio_reg[gpio->line >> 3]" reads past the
end of the array.Signed-off-by: Dan Carpenter
Signed-off-by: Ben Skeggs
Signed-off-by: Dave Airlie -
On cards where there's a specific BAR for PRAMIN, we used to try and fall
back to the "legacy" aperture within the mmio BAR.This is doomed to cause problems, so lets just fail completely as there's
obviously something else very wrong anyway.Signed-off-by: Ben Skeggs
Signed-off-by: Dave Airlie -
It appears version 0x21 'U' and 'd' tables require us to take the SOR link
into account when selecting the appropriate table for a particular output.Signed-off-by: Ben Skeggs
Signed-off-by: Dave Airlie -
* git://git.infradead.org/~dwmw2/mtd-2.6.35:
jffs2: update ctime when changing the file's permission by setfacl
jffs2: Fix NFS race by using insert_inode_locked()
jffs2: Fix in-core inode leaks on error paths
mtd: Fix NAND submenu
mtd/r852: update card detect early.
mtd/r852: Fixes in case of DMA timeout
mtd/r852: register IRQ as last step
drivers/mtd: Use memdup_user
docbook: make mtd nand module init static -
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
ahci: redo stopping DMA engines on empty ports
sata_sil24: fix kernel panic on ARM caused by unaligned access in sata_sil24
ahci: add pci quirk for JMB362
sata_via: explain the magic fix
