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Fix another place in the code where logic dealing with the t4_cqe was
using the wrong QID. This fixes the counting logic so that it tests
against the SQ QID instead of the RQ QID when counting RCQES.
Signed-off by: Jonathan Lallinger <jonathan@ogc.us>
Signed-off by: Steve Wise <swise@ogc.us>
Signed-off-by: Roland Dreier <roland@purestorage.com>
We weren't filling in the transfer length of the
flush cache command (it transfers 4 bytes of zeroes).
Firmware didn't seem to be bothered by this, but it
should be fixed.
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
IRQF_SHARED is required for older controllers that don't support MSI(X)
and which may end up sharing an interrupt.
Also remove deprecated IRQF_DISABLED.
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
SMPS regulator voltage control differs from the one of the LDO ones.
Current TWL code was using LDO regulator ops for controlling the SMPS
regulators, which fails. This was fixed fixed by adding separate
regulator type which uses correct logic and calculations for the
voltage levels.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@kernel.org
Revert a hunk in drivers/net/wireless/ath/ath9k/hw.c introduced by
commit 2577c6e8f2320f1d2f09be122efef5b9118efee4 (ath9k_hw: Add
support for AR946/8x chipsets) that caused a nasty regression to
appear on my Acer Ferrari One (the box locks up entirely at random
times after the wireless has been started without any way to get
debug information out of it).
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Julian Sikorski reports NEC uPD720200 does not work stable after suspend
and resume. Re-initialize the host in xhci_resume().
This should be backported to stable kernels as old as 2.6.37. The
kernel will need to include
commit c877b3b2ad5cb9d4fe523c5496185cc328ff3ae9
"xhci: Add reset on resume quirk for asrock p67 host"
for this patch to work.
Signed-off-by: Andiry Xu <andiry.xu@amd.com>
Reported-by: Julian Sikorski <belegdol@gmail.com>
Tested-by: Julian Sikorski <belegdol@gmail.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
This is caused by dereferencing 'rdev' after device_unregister() in
the regulator_unregister() function. 'rdev' is freed by
device_unregister(), so it must not be dereferenced after this call.
[Edited commit message for legibility -- broonie]
Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
In current implementation, the pointer ri is not NULL if no id is matched.
Fix it by checking i == ARRAY_SIZE(aat2870_regulators) if no id is matched.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@kernel.org
To perform PHY calibration and set a different EA value by chip ID,
Whenever the NIC chip power on, ie booting or resuming, we need to
force HW to calibrate PHY parameter again, and also set a proper EA
value which gather from experiment.
Those procedures help to reduce compatible issues(NIC is unable to link
up in some special case) in giga speed.
Signed-off-by: AriesLee <AriesLee@jmicron.com>
Signed-off-by: Guo-Fu Tseng <cooldavid@cooldavid.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
* 'fbdev-for-linus' of git://github.com/schandinat/linux-2.6:
viafb: correct sync polarity for OLPC DCON
video:da8xx-fb: Disable and reset sequence on version2 of LCDC
OMAPDSS: DISPC: skip scaling calculations when not scaling
OMAPFB: fix compilation warnings due to missing include
OMAPDSS: HDMI: fix returned HDMI pixel clock
Revert a hunk in drivers/net/wireless/ath/ath9k/hw.c introduced by
commit 2577c6e8f232 ("ath9k_hw: Add support for AR946/8x chipsets") that
caused a nasty regression to appear on my Acer Ferrari One (the box
locks up entirely at random times after the wireless has been started
without any way to get debug information out of it).
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
There is a potential integer overflow in do_insnlist_ioctl() if
userspace passes in a large insnlist.n_insns. The call to kmalloc()
would allocate a small buffer, leading to a memory corruption.
The bug was reported by Dan Carpenter <dan.carpenter@oracle.com>
and Haogang Chen <haogangchen@gmail.com>. The patch was suggested by
Ian Abbott <abbotti@mev.co.uk> and Lars-Peter Clausen <lars@metafoo.de>.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Reported-by: Haogang Chen <haogangchen@gmail.com>.
Cc: Ian Abbott <abbotti@mev.co.uk>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Xi Wang <xi.wang@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This reverts commit e384a41141949843899affcf51f4e6e646c1fe9f.
It's not the correct way to solve this issue.
Acked-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
qset->qh.link is an __le64 field and we should be using cpu_to_le64()
to fill it.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Kingston DT 101 G2 replies a wrong tag while transporting, add an
unusal_devs entry to ignore the tag validation.
Signed-off-by: Qinglin Ye <yestyle@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
There is an integer overflow here that could cause memory corruption
on 32 bit systems.
insnlist.n_insns could be a very high value size calculation for
kmalloc() could overflow resulting in a smaller "insns" than
expected. In the for (i = 0; i < insnlist.n_insns; i++) {... loop
we would read past the end of the buffer, possibly corrupting memory
as well.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
After sleeping on a wait queue, signal_pending(current) should be
checked (not before sleeping).
Acked-by: Alessandro Rubini <rubini@gnudd.com>
Signed-off-by: Federico Vaga <federico.vaga@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
In comedi_fops, mmap_count is decremented at comedi_vm_ops->close but
it is not incremented at comedi_vm_ops->open. This may result in a negative
counter. The patch introduces the open method to keep the counter
consistent.
The bug was triggerd by this sample code:
mmap(0, ...., comedi_fd);
fork();
exit(0);
Acked-by: Alessandro Rubini <rubini@gnudd.com>
Signed-off-by: Federico Vaga <federico.vaga@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This fixes kernel oops when an USB DAQ device is plugged out while it's
communicating with the userspace software.
Signed-off-by: Bernd Porr <berndporr@f2s.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Interrupts must be disabled prior to calling usb_hcd_unlink_urb_from_ep.
If interrupts are not disabled, it can potentially lead to a deadlock.
The deadlock is readily reproduceable on a slower (ARM based) device
such as the TI Pandaboard.
Signed-off-by: Bart Westgeest <bart@elbrys.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
commit 798681bf "ARM: 7158/1: add new MFP implement for NUC900"
adds subname parameter for mfp_set_groupg.
Thus add subname parameter to the callers.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Wan Zongshun <mcuos.com@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Fix build failure in staging iio driver:
.../drivers/staging/iio/industrialio-core.c: In function 'iio_event_getfd':
.../drivers/staging/iio/industrialio-core.c:262:32: error:
'ev_int' undeclared (first use in this function)
Also convert the rest of the function to use the new variable.
Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
We're trying to check if any options are defined which isn't wha the
existing code does due to confusing & and &&.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 88491d8103498a6166f70d5999902fec70924314 ("drivers/net: Kconfig
& Makefile cleanup") changed the type of these options to bool, but
they select code that could (and still can) be built as modules.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch converts the drivers in drivers/hwmon/* to use the
module_platform_driver() macro which makes the code smaller and a bit
simpler.
Cc: Donggeun Kim <dg77.kim@samsung.com>
Cc: Simon Guinot <sguinot@lacie.com>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: MyungJoo Ham <myungjoo.ham@samsung.com>
Cc: Ben Dooks <ben@simtec.co.uk>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: J Keerthy <j-keerthy@ti.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
In ancient times it was necessary to manually initialize the bus field of an
spi_driver to spi_bus_type. These days this is done in spi_register_driver(),
so we can drop the manual assignment.
The patch was generated using the following coccinelle semantic patch:
// <smpl>
@@
identifier _driver;
@@
struct spi_driver _driver = {
.driver = {
- .bus = &spi_bus_type,
},
};
// </smpl>
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: lm-sensors@lm-sensors.org
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
The loop driver does not support discard if encryption is enabled,
fix the comment.
Signed-off-by: Dave Young <dyoung@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
compatible in dts has been changed, so the driver needs to be updated
accordingly.
Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* git://github.com/rustyrussell/linux:
virtio-pci: make reset operation safer
virtio-mmio: Correct the name of the guest features selector
virtio: add HAS_IOMEM dependency to MMIO platform bus driver
virtio pci device reset actually just does an I/O
write, which in PCI is really posted, that is it
can complete on CPU before the device has received it.
Further, interrupts might have been pending on
another CPU, so device callback might get invoked after reset.
This conflicts with how drivers use reset, which is typically:
reset
unregister
a callback running after reset completed can race with
unregister, potentially leading to use after free bugs.
Fix by flushing out the write, and flushing pending interrupts.
This assumes that device is never reset from
its vq/config callbacks, or in parallel with being
added/removed, document this assumption.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Fix this compile error on s390:
CC [M] drivers/virtio/virtio_mmio.o
drivers/virtio/virtio_mmio.c: In function 'vm_get_features':
drivers/virtio/virtio_mmio.c:107:2: error: implicit declaration of function 'writel'
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Acked-by: Pawel Moll <pawel.moll@arm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Use round_jiffies_relative to align the ehea workqueue and avoid
extra wakeups.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Now that we enable multiqueue by default the ehea driver is using
quite a lot of memory for its buffer pools. With 4 queues we
consume 64MB in the jumbo packet ring, 16MB in the medium packet
ring and 16MB in the tiny packet ring.
We should only fill the jumbo ring once the MTU is increased but
for now halve it's size so it consumes 32MB. Also reduce the tiny
packet ring, with 4 queues we had 16k entries which is overkill.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
When transmiting a fragmented skb, qlge fills a descriptor with the
fragment addresses, after DMA-mapping them. If there are more than eight
fragments, it will use the eighth descriptor as a pointer to an external
list. After mapping this external list, called OAL to a structure
containing more descriptors, it fills it with the extra fragments.
However, considering that systems with pages larger than 8KiB would have
less than 8 fragments, which was true before commit a715dea3c8e, it
defined a macro for the OAL size as 0 in those cases.
Now, if a skb with more than 8 fragments (counting skb->data as one
fragment), this would start overwriting the list of addresses already
mapped and would make the driver fail to properly unmap the right
addresses on architectures with pages larger than 8KiB.
Besides that, the list of mappings was one size too small, since it must
have a mapping for the maxinum number of skb fragments plus one for
skb->data and another for the OAL. So, even on architectures with page
sizes 4KiB and 8KiB, a skb with the maximum number of fragments would
make the driver overwrite its counter for the number of mappings, which,
again, would make it fail to unmap the mapped DMA addresses.
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix port identify test on 5461x PHY by driving LEDs through MDIO.
Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci:
PCI hotplug: shpchp: don't blindly claim non-AMD 0x7450 device IDs
PCI: pciehp: wait 100 ms after Link Training check
PCI: pciehp: wait 1000 ms before Link Training check
PCI: pciehp: Retrieve link speed after link is trained
PCI: Let PCI_PRI depend on PCI
PCI: Fix compile errors with PCI_ATS and !PCI_IOV
PCI / ACPI: Make acpiphp ignore root bridges using PCIe native hotplug
Reported issues when using dev_kfree_skb() on UP systems and
systems with low numbers of cores. dev_kfree_skb_irq() will
properly save IRQ state before freeing the skb.
Tested on 3.1.1 and 3.2_rc2
Example of reproducible trace of kernel 3.1.1
------------[ cut here ]------------
WARNING: at kernel/softirq.c:159 local_bh_enable+0x32/0x79()
...
Pid: 0, comm: swapper Not tainted 3.1.1-gentoo #1
Call Trace:
[<c1022970>] warn_slowpath_common+0x65/0x7a
[<c102699e>] ? local_bh_enable+0x32/0x79
[<c1022994>] warn_slowpath_null+0xf/0x13
[<c102699e>] local_bh_enable+0x32/0x79
[<c134bfd8>] destroy_conntrack+0x7c/0x9b
[<c134890b>] nf_conntrack_destroy+0x1f/0x26
[<c132e3a6>] skb_release_head_state+0x74/0x83
[<c132e286>] __kfree_skb+0xb/0x6b
[<c132e30a>] consume_skb+0x24/0x26
[<c127c925>] b44_poll+0xaa/0x449
[<c1333ca1>] net_rx_action+0x3f/0xea
[<c1026a44>] __do_softirq+0x5f/0xd5
[<c10269e5>] ? local_bh_enable+0x79/0x79
<IRQ> [<c1026c32>] ? irq_exit+0x34/0x8d
[<c1003628>] ? do_IRQ+0x74/0x87
[<c13f5329>] ? common_interrupt+0x29/0x30
[<c1006e18>] ? default_idle+0x29/0x3e
[<c10015a7>] ? cpu_idle+0x2f/0x5d
[<c13e91c5>] ? rest_init+0x79/0x7b
[<c15c66a9>] ? start_kernel+0x297/0x29c
[<c15c60b0>] ? i386_start_kernel+0xb0/0xb7
---[ end trace 583f33bb1aa207a9 ]---
Signed-off-by: Xander Hover <LKML@hover.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
