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linux/vhost.h was included twice.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Move to circular buffers management macro and correct an error
with circular buffer initial condition.
Without this patch, the macb_tx_ring_avail() function was
not reporting the proper ring availability at startup:
macb macb: eth0: BUG! Tx Ring full when queue awake!
macb macb: eth0: tx_head = 0, tx_tail = 0
And hanginig forever...
I remove the macb_tx_ring_avail() function and use the
proven macros from circ_buf.h. CIRC_CNT() is used in the
"consumer" part of the driver: macb_tx_interrupt() to match
advice from Documentation/circular-buffers.txt.
Reported-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Tested-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Remove BUG_ONs or convert to WARN_ON_ONCE/WARN_ONs since a failure within a
networking device driver is no reason to shut down the entire machine.
Signed-off-by: Stefan Raspl <raspl@linux.vnet.ibm.com>
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Reviewed-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Trace all supported and enabled card features to s390dbf.
Signed-off-by: Stefan Raspl <raspl@linux.vnet.ibm.com>
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Reviewed-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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So far, virtual NICs whether attached to a VSWITCH or a guest LAN were always
displayed as guest LANs in the device driver attributes and messages, while
in fact it is a virtual NIC.
Signed-off-by: Stefan Raspl <raspl@linux.vnet.ibm.com>
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Reviewed-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Remove BUG_ON's in claw driver, since the checked error conditions
are null pointer accesses.
Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Remove BUG_ON's in ctcm driver, since the checked error conditions
are null pointer accesses.
Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Eliminate a variable that is never modified.
Signed-off-by: Stefan Raspl <raspl@linux.vnet.ibm.com>
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Reviewed-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Allow an unpriviled user who has created a user namespace, and then
created a network namespace to effectively use the new network
namespace, by reducing capable(CAP_NET_ADMIN) calls to
ns_capable(net->user_ns,CAP_NET_ADMIN) calls.
Allow setting of the tun iff flags.
Allow creating of tun devices.
Allow adding a new queue to a tun device.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Serge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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qlcnic_hw.c:1337:17: warning: cast removes address space of expression
qlcnic_hw.c:1337:17: warning: incorrect type in argument 2 (different address spaces)
qlcnic_hw.c:1337:17: expected void volatile [noderef] <asn:2>*addr
qlcnic_hw.c:1337:17: got void *<noident>
qlcnic_hw.c:1337:17: warning: cast removes address space of expression
qlcnic_hw.c:1337:17: warning: incorrect type in argument 1 (different address spaces)
qlcnic_hw.c:1337:17: expected void const volatile [noderef] <asn:2>*addr
qlcnic_hw.c:1337:17: got void *<noident>
The above warnings are originating from the macros QLCNIC_RD_DUMP_REG and
QLCNIC_WR_DUMP_REG.
The warnings are fixed and macros are replaced with equivalent functions
in the only file from where it is called.
The following warnings are fixed by making the functions static.
qlcnic_hw.c:543:5: warning: symbol 'qlcnic_set_fw_loopback' was not declared. Should it be static?
qlcnic_init.c:1853:6: warning: symbol 'qlcnic_process_rcv_diag' was not declared. Should it be static?
Signed-off-by: Sony Chacko <sony.chacko@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Fix the following warnings:
qlcnic_main.c: In function 'qlcnic_update_cmd_producer':
qlcnic_main.c:119:51: warning: unused parameter 'adapter' [-Wunused-parameter]
qlcnic_main.c:119: warning: unused parameter adapter
qlcnic_init.c: In function qlcnic_process_lro
qlcnic_init.c:1586: warning: unused parameter sds_ring
qlcnic_init.c: In function qlcnic_process_rcv_diag
qlcnic_init.c:1854: warning: unused parameter sds_ring
qlcnic_init.c: In function qlcnic_fetch_mac
qlcnic_init.c:1938: warning: unused parameter adapter
warning: 'pci_using_dac' may be used uninitialized in this function [-Wmaybe-uninitialized]
qlcnic_main.c:1569:10: note: 'pci_using_dac' was declared here
Signed-off-by: Sony Chacko <sony.chacko@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In commit a24006ed12616bde1bbdb26868495906a212d8dc ('ptp: Enable clock
drivers along with associated net/PHY drivers') I wrongly made
PTP_1588_CLOCK_PCH depend on PCH_GBE. The dependency is really the
other way around. Therefore make PCH_GBE select PTP_1588_CLOCK_PCH
and remove the 'default y' from the latter.
Reported-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Acked-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch removes addrexceeded member from vxlan_dev struct as it is unused.
Signed-off-by: Rami Rosen <ramirose@gmail.com>
Acked-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Minor line offset auto-merges.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Merge misc fixes from Andrew Morton.
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (12 patches)
revert "mm: fix-up zone present pages"
tmpfs: change final i_blocks BUG to WARNING
tmpfs: fix shmem_getpage_gfp() VM_BUG_ON
mm: highmem: don't treat PKMAP_ADDR(LAST_PKMAP) as a highmem address
mm: revert "mm: vmscan: scale number of pages reclaimed by reclaim/compaction based on failures"
rapidio: fix kernel-doc warnings
swapfile: fix name leak in swapoff
memcg: fix hotplugged memory zone oops
mips, arc: fix build failure
memcg: oom: fix totalpages calculation for memory.swappiness==0
mm: fix build warning for uninitialized value
mm: add anon_vma_lock to validate_mm()
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Fix rapidio kernel-doc warnings:
Warning(drivers/rapidio/rio.c:415): No description found for parameter 'local'
Warning(drivers/rapidio/rio.c:415): Excess function parameter 'lstart' description in 'rio_map_inb_region'
Warning(include/linux/rio.h:290): No description found for parameter 'switches'
Warning(include/linux/rio.h:290): No description found for parameter 'destid_table'
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Matt Porter <mporter@kernel.crashing.org>
Acked-by: Alexandre Bounine <alexandre.bounine@idt.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Pull networking updates from David Miller:
1) tx_filtered/ps_tx_buf queues need to be accessed with the SKB queue
lock, from Arik Nemtsov.
2) Don't call 802.11 driver's filter configure method until it's
actually open, from Felix Fietkau.
3) Use ieee80211_free_txskb otherwise we leak control information.
From Johannes Berg.
4) Fix memory leak in bluetooth UUID removal,f rom Johan Hedberg.
5) The shift mask trick doesn't work properly when 'optname' is out of
range in do_ip_setsockopt(). Use a straightforward switch statement
instead, the compiler emits essentially the same code but without
the missing range check. From Xi Wang.
6) Fix when we call tcp_replace_ts_recent() otherwise we can
erroneously accept a too-high tsval. From Eric Dumazet.
7) VXLAN bug fixes, mostly to do with VLAN header length handling, from
Alexander Duyck.
8) Missing return value initialization for IPV6_MINHOPCOUNT socket
option handling. From Hannes Frederic.
9) Fix regression in tasklet handling in jme/ksz884x/xilinx drivers,
from Xiaotian Feng.
10) At smsc911x driver init time, we don't know if the chip is in word
swap mode or not. However we do need to wait for the control
register's ready bit to be set before we program any other part of
the chip. Adjust the wait loop to account for this. From Kamlakant
Patel.
11) Revert erroneous MDIO bus unregister change to mdio-bitbang.c
12) Fix memory leak in /proc/net/sctp/, from Tommi Rantala.
13) tilegx driver registers IRQ with NULL name, oops, from Simon Marchi.
14) TCP metrics hash table kzalloc() based allocation can fail, back
down to using vmalloc() if it does. From Eric Dumazet.
15) Fix packet steering out-of-order delivery regression, from Tom
Herbert.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (40 commits)
net-rps: Fix brokeness causing OOO packets
tcp: handle tcp_net_metrics_init() order-5 memory allocation failures
batman-adv: process broadcast packets in BLA earlier
batman-adv: don't add TEMP clients belonging to other backbone nodes
batman-adv: correctly pass the client flag on tt_response
batman-adv: fix tt_global_entries flags update
tilegx: request_irq with a non-null device name
net: correct check in dev_addr_del()
tcp: fix retransmission in repair mode
sctp: fix /proc/net/sctp/ memory leak
Revert "drivers/net/phy/mdio-bitbang.c: Call mdiobus_unregister before mdiobus_free"
net/smsc911x: Fix ready check in cases where WORD_SWAP is needed
drivers/net: fix tasklet misuse issue
ipv4/ip_vti.c: VTI fix post-decryption forwarding
brcmfmac: fix typo in CONFIG_BRCMISCAN
vxlan: Update hard_header_len based on lowerdev when instantiating VXLAN
vxlan: fix a typo.
ipv6: setsockopt(IPIPPROTO_IPV6, IPV6_MINHOPCOUNT) forgot to set return value
doc/net: Fix typo in netdev-features.txt
vxlan: Fix error that was resulting in VXLAN MTU size being 10 bytes too large
...
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"We've been sitting on this longer than we meant to due to travel and
other activities, but the number of patches is luckily not that high.
Biggest changes are from a batch of OMAP bugfixes, but there are a few
for the broader set of SoCs too (bcm2835, pxa, highbank, tegra, at91
and i.MX).
The OMAP patches contain some fixes for MUSB/PHY on omap4 which ends
up being a bit on the large side but needed for legacy (non-DT)
platforms. Beyond that there are a handful of hwmod/pm changes.
So, fairly noncontroversial stuff all in all, and as usual around this
time the fixes are well targeted at specific problems."
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: imx: ehci: fix host power mask bit
ARM i.MX: fix error-valued pointer dereference in clk_register_gate2()
ARM: at91/usbh: fix overcurrent gpio setup
ARM: at91/AT91SAM9G45: fix crypto peripherals irq issue due to sparse irq support
ARM: boot: Fix usage of kecho
ARM: OMAP: ocp2scp: create omap device for ocp2scp
ARM: OMAP4: add _dev_attr_ to ocp2scp for representing usb_phy
drivers: bus: ocp2scp: add pdata support
irqchip: irq-bcm2835: Add terminating entry for of_device_id table
ARM: highbank: retry wfi on reset request
ARM: OMAP4: PM: fix regulator name for VDD_MPU
ARM: OMAP4: hwmod data: do not enable or reset the McPDM during kernel init
ARM: OMAP2+: hwmod: add flag to prevent hwmod code from touching IP block during init
ARM: dt: tegra: fix length of pad control and mux registers
ARM: OMAP: hwmod: wait for sysreset complete after enabling hwmod
ARM: OMAP2+: clockdomain: Fix OMAP4 ISS clk domain to support only SWSUP
ARM: pxa/spitz_pm: Fix hang when resuming from STR
ARM: pxa: hx4700: Fix backlight PWM device number
ARM: OMAP2+: PM: add missing newline to VC warning message
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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem
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git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
Pull HID fix from Jiri Kosina:
"This has a build fix for architectures where memcmp() is macro, from
Jiri Slaby"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
HID: microsoft: do not use compound literal - fix build
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg Kroah-Hartman:
"Here are some USB fixes for the 3.7 tree.
Nothing huge here, just a number of tiny bugfixes resolving issues
that have been found, and two reverts of patches that were found to
have caused problems.
All of these have been in linux-next already.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'usb-3.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
Revert "USB/host: Cleanup unneccessary irq disable code"
USB: option: add Alcatel X220/X500D USB IDs
USB: option: add Novatel E362 and Dell Wireless 5800 USB IDs
USB: keyspan: fix typo causing GPF on open
USB: fix build with XEN and EARLY_PRINTK_DBGP enabled but USB_SUPPORT disabled
USB: usb_wwan: fix bulk-urb allocation
usb: otg: Fix build errors if USB_MUSB_OMAP2PLUS is selected as module
usb: musb: ux500: fix 'musbid' undeclared error in ux500_remove()
Revert "usb: musb: use DMA mode 1 whenever possible"
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull TTY fixes from Greg Kroah-Hartman:
"Here are two TTY driver fixes for 3.7-rc5.
They resolve a bug in the hvc driver that has been reported, and fix a
problem with the list of device ids in the max310x serial driver.
Both have been in linux-next for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'tty-3.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
tty: serial: max310x: Add terminating entry for spi_device_id table
TTY: hvc_console, fix port reference count going to zero prematurely
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging tree fix from Greg Kroah-Hartman:
"Here is a single patch, a revert of an android driver patch, that
resolves a bug that has been reported in the Android alarm driver.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'staging-3.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
Revert "Staging: Android alarm: IOCTL command encoding fix"
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fixes
From Sascha Hauer <s.hauer@pengutronix.de>:
ARM i.MX fixes for 3.7-rc
* tag 'imx-fixes-rc' of git://git.pengutronix.de/git/imx/linux-2.6:
ARM: imx: ehci: fix host power mask bit
ARM i.MX: fix error-valued pointer dereference in clk_register_gate2()
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 patches from Martin Schwidefsky:
"Some more bug fixes and a config change.
The signal bug is nasty, if the clock_gettime vdso function is
interrupted by a signal while in access-register-mode we end up with
an endless signal loop until the signal stack is full. The config
change is for aligned struct pages, gives us 8% improvement with
hackbench."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/3215: fix tty close handling
s390/mm: have 16 byte aligned struct pages
s390/gup: fix access_ok() usage in __get_user_pages_fast()
s390/gup: add missing TASK_SIZE check to get_user_pages_fast()
s390/topology: fix core id vs physical package id mix-up
s390/signal: set correct address space control
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Pull drm fixes from Dave Airlie:
"All pretty normal: one TTM oops fix, one radeon, a few intel and a
vmwgfx fix."
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/ttm: remove unneeded preempt_disable/enable
ttm: Clear the ttm page allocated from high memory zone correctly
vmwgfx: return an -EFAULT if copy_to_user() fails
drm/radeon: fix logic error in atombios_encoders.c
drm/i915: do not ignore eDP bpc settings from vbt
drm/i915/sdvo: clean up connectors on intel_sdvo_init() failures
drm/i915/crt: fix DPMS standby and suspend mode handling
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This patch simply makes the tilegx net driver call request_irq with a
non-null name. It makes the output in /proc/interrupts more obvious, but
also helps tools that don't expect to find null there.
Signed-off-by: Simon Marchi <simon.marchi@polymtl.ca>
Acked-by: Chris Metcalf <cmetcalf@tilera.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://people.freedesktop.org/~danvet/drm-intel into drm-fixes
Daniel writes:
Just a few small things to fix regressions, somehow all patches from Jani:
- Fix dpms confusion about which platforms support intermediate modes on
vga.
- Revert the "ignore vbt for eDP bpc" patch, it breaks machines. This will
annoy mbp retina owners again, but windows machines seem to _really_
depend upon this. We can try to quirk the mbp retinas again in 3.8 and
backport the patch.
- Fix connector leaks when the sdvo setup failed, resulted in an OOPS
later on when trying to probe that connector (with it's encoder kfree'd
already).
* 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel:
drm/i915: do not ignore eDP bpc settings from vbt
drm/i915/sdvo: clean up connectors on intel_sdvo_init() failures
drm/i915/crt: fix DPMS standby and suspend mode handling
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into drm-fixes
Just a single radeon fix from Alex.
* 'drm-fixes-3.7' of git://people.freedesktop.org/~agd5f/linux:
drm/radeon: fix logic error in atombios_encoders.c
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It is unnecessary to disable preemption explicitly while calling
copy_highpage(). Because copy_highpage() will do it again through
kmap_atomic/kunmap_atomic.
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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The TTM page can be allocated from high memory. In such case it is
wrong to use the page_address(page) as the virtual address for the high memory
page.
bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=50241
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Cc: stable@vger.kernel.org
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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copy_to_user() returns the number of bytes remaining to be copied, but
we want to return a negative error code here. I fixed a couple of these
last year, but I missed this one.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Marc Kleine-Budde says:
====================
this pull request is for net-next, for the v3.8 release cycle. Muhammad
Ghias added support another board to the plx_pci sja1000 driver.
Matthias Fuchs improved the esd_usb2 driver with listen-only mode and
CAN-USB/Micro support. Andreas Larsson contributed a driver for the
GRHCAN CAN IP-Core
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch re-enables Energy Detect Power Down (EDPD) mode for the
LAN8710/LAN8720. EDPD mode was disabled in a previous commit,
(b629820d18fa65cc598390e4b9712fd5f83ee693), because it was causing the
PHY to not be able to detect a link when cold started without a cable
connected.
The LAN8710/LAN8720 requires a minimum of 2 link pulses within 64ms of
each other in order to set the ENERGYON bit and exit EDPD mode. If a
link partner does send the pulses within this interval, the PHY will
remained powered down.
This workaround will manually toggle the PHY on/off upon calls to
read_status in order to generate link test pulses if the link is down.
If a link partner is present, it will respond to the pulses, which will
cause the ENERGYON bit to be set and will cause the EDPD mode to be
exited.
Signed-off-by: Patrick Trantham <patrick.trantham@fuel7.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This driver supports GRCAN and CRHCAN CAN controllers available in the GRLIB
VHDL IP core library.
Signed-off-by: Andreas Larsson <andreas@gaisler.com>
Acked-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
Pill i2c fixes from Jean Delvare.
Well, "fixes".. The biggest patch here is actually Jan marking Wolfram
Sang as the main i2c subsystem maintainer, with Jan staying on as the PC
controller maintainer.
* 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
i2c-mux-pinctrl: Fix probe error path
MAINTAINERS: i2c: 7 years, this is it
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator fixes from Mark Brown:
"A few fixes for teardown issues that will be rarely seen, plus a fix
for a silly bug in regulator_is_supported_voltage() which shows how
often the answer to the question should be false.
The supported voltage commit is very new as I just edited to add a Cc
to stable, the code itself has been in -next."
* tag 'regulator-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: fix voltage check in regulator_is_supported_voltage()
regulator: core: Avoid deadlock when regulator_register fails
Regulator: core: Unregister when gpio request fails.
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The return value of wait_for_completion_timeout() is always
>= 0 with unsigned int type.
So the condition "ret < 0" or "ret >= 0" is pointless.
Signed-off-by: liu chuansheng <chuansheng.liu@intel.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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This patch extends the esd_usb2 driver to support the
tiny CAN-USB/Micro CAN/USB interface.
Signed-off-by: Matthias Fuchs <matthias.fuchs@esd.eu>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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Add listen-only mode for esd_usb2 driver.
Signed-off-by: Matthias Fuchs <matthias.fuchs@esd.eu>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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Opto CAN board
Patch adds support for CANpro/104-Plus Opto CAN board. Board uses PLX9030
bridge and two NXP SJA1000 CAN controllers. Patch is generated and tested with
kernel 3.6.1.
Signed-off-by: Muhammad Ghias <mghias@connecttech.com>
Acked-by: Wolfgang Grandegger <wg@grandegger.com>
[mkl: minor adjustments to commit message]
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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The 3215 console always has the RAW3215_FIXED flag set, which causes
raw3215_shutdown() not to wait for outstanding I/O requests if an attached
tty gets closed.
The flag however can be simply removed, so we can guarantee that all requests
belonging to the tty have been processed when the tty is closed.
However the tasklet that belongs to the 3215 device may be scheduled even if
there is no tty attached anymore, since we have a race between console and tty
processing.
Thefore unconditional tty_wakekup() in raw3215_wakeup() can cause the following
NULL pointer dereference:
3.465368 Unable to handle kernel pointer dereference at virtual kernel address (null)
3.465448 Oops: 0004 #1 SMP
3.465454 Modules linked in:
3.465459 CPU: 1 Not tainted 3.6.0 #1
3.465462 Process swapper/1 (pid: 0, task: 000000003ffa4428, ksp: 000000003ffb7ce0)
3.465466 Krnl PSW : 0404100180000000 0000000000162f86 (__wake_up+0x46/0xb8)
3.465480 R:0 T:1 IO:0 EX:0 Key:0 M:1 W:0 P:0 AS:0 CC:1 PM:0 EA:3
Krnl GPRS: fffffffffffffffe 0000000000000000 0000000000000160 0000000000000001
3.465492 0000000000000001 0000000000000004 0000000000000004 000000000096b490
3.465499 0000000000000001 0000000000000100 0000000000000001 0000000000000001
3.465506 070000003fc87d60 0000000000000160 000000003fc87d68 000000003fc87d00
3.465526 Krnl Code: 0000000000162f76: e3c0f0a80004 lg %r12,168(%r15)
0000000000162f7c: 58000370 l %r0,880
#0000000000162f80: c007ffffffff00 xilf %r0,4294967295
>0000000000162f86: ba102000 cs %r1,%r0,0(%r2)
0000000000162f8a: 1211 ltr %r1,%r1
0000000000162f8c: a774002f brc 7,162fea
0000000000162f90: b904002d lgr %r2,%r13
0000000000162f94: b904003a lgr %r3,%r10
3.465597 Call Trace:
3.465599 (<0400000000000000> 0x400000000000000)
3.465602 <000000000048c77e> raw3215_wakeup+0x2e/0x40
3.465607 <0000000000134d66> tasklet_action+0x96/0x168
3.465612 <000000000013423c> __do_softirq+0xd8/0x21c
3.465615 <0000000000134678> irq_exit+0xa8/0xac
3.465617 <000000000046c232> do_IRQ+0x182/0x248
3.465621 <00000000005c8296> io_return+0x0/0x8
3.465625 <00000000005c7cac> vtime_stop_cpu+0x4c/0xb8
3.465629 (<0000000000194e06> tick_nohz_idle_enter+0x4e/0x74)
3.465633 <0000000000104760> cpu_idle+0x170/0x184
3.465636 <00000000005b5182> smp_start_secondary+0xd6/0xe0
3.465641 <00000000005c86be> restart_int_handler+0x56/0x6c
3.465643 <0000000000000000> 0x0
3.465645 Last Breaking-Event-Address:
3.465647 <0000000000403136> tty_wakeup+0x46/0x98
3.465652
3.465654 Kernel panic - not syncing: Fatal exception in interrupt
01: HCPGIR450W CP entered; disabled wait PSW 00020001 80000000 00000000 0010F63C
The easiest solution is simply to check if tty is NULL in the tasklet.
If it is NULL nothing is to do (no tty attached), otherwise tty_wakeup()
can be called, since we hold a reference to the tty.
This is not nice... but it is a small patch and it works.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Add hardware checksum statistic counters to the ring structures and
then during packet processing update those counters instead of the
global counters in the adapter structure. Only update the adapter
structure counters when all other statistics are gathered in the
ixgbevf_update_stats() function.
Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=50431
Reported-by: David Binderman <dcb314@hotmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
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Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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The spinlocks are not required during reset. There won't be any
contention for the mailbox resource.
Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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The function pointers will always be set - there is no good reason to
check them. Also just remove get_bus_info() call as the VF has no bus
info to report.
Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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It is unused - remove it.
Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Remove dereference of hw pointer from adapter structure since a pointer
to the hw structure has already been allocated off the stack. Also clean
up useless parenthesis.
Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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