| Commit message (Collapse) | Author | Age |
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Conflicts:
drivers/devfreq/exynos4_bus.c
Sync with Linus' tree to be able to apply patches that are
against newer code (mvneta).
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator fixes from Mark Brown:
"Fairly small stuff - a build failure fix for ST platforms, an error
checking fix and an update to the MAINTAINERS file for Liam."
* tag 'regulator-3.8-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: tps80031: Use IS_ERR to check return value of regulator_register()
regulators: db8500: Fix compile failure for drivers/regulator/dbx500-prcmu.c
regulator: MAINTAINERS: update email address
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regulator_register() does not return NULL, it returns ERR_PTR on error.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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Building for the snowball board, I ran into this compile failure:
CC drivers/regulator/dbx500-prcmu.o
arm-test.git/drivers/regulator/dbx500-prcmu.c:119:11: error: 'THIS_MODULE' undeclared here (not in a function)
make[3]: *** [drivers/regulator/dbx500-prcmu.o] Error 1
make[2]: *** [drivers/regulator] Error 2
Commit 38e968380 "regulators/db8500: split off shared dbx500 code"
separated out the dbx500 code but did not copy over the required include
to linux/module.h.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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Pull dmraid fix from NeilBrown:
"Just one fix for md in 3.8
dmraid assess redundancy and replacements slightly inaccurately which
could lead to some degraded arrays failing to assemble."
* tag 'md-3.8-fixes' of git://neil.brown.name/md:
DM-RAID: Fix RAID10's check for sufficient redundancy
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Before attempting to activate a RAID array, it is checked for sufficient
redundancy. That is, we make sure that there are not too many failed
devices - or devices specified for rebuild - to undermine our ability to
activate the array. The current code performs this check twice - once to
ensure there were not too many devices specified for rebuild by the user
('validate_rebuild_devices') and again after possibly experiencing a failure
to read the superblock ('analyse_superblocks'). Neither of these checks are
sufficient. The first check is done properly but with insufficient
information about the possible failure state of the devices to make a good
determination if the array can be activated. The second check is simply
done wrong in the case of RAID10 because it doesn't account for the
independence of the stripes (i.e. mirror sets). The solution is to use the
properly written check ('validate_rebuild_devices'), but perform the check
after the superblocks have been read and we know which devices have failed.
This gives us one check instead of two and performs it in a location where
it can be done right.
Only RAID10 was affected and it was affected in the following ways:
- the code did not properly catch the condition where a user specified
a device for rebuild that already had a failed device in the same mirror
set. (This condition would, however, be caught at a deeper level in MD.)
- the code triggers a false positive and denies activation when devices in
independent mirror sets have failed - counting the failures as though they
were all in the same set.
The most likely place this error was introduced (or this patch should have
been included) is in commit 4ec1e369 - first introduced in v3.7-rc1.
Consequently this fix should also go in v3.7.y, however there is a
small conflict on the .version in raid_target, so I'll submit a
separate patch to -stable.
Cc: stable@vger.kernel.org
Signed-off-by: Jonathan Brassow <jbrassow@redhat.com>
Signed-off-by: NeilBrown <neilb@suse.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull IOMMU fix from Joerg Roedel:
"One fix for the AMD IOMMU driver to work around broken BIOSes found in
the field. Some BIOSes forget to enable a workaround for a hardware
problem which might cause the IOMMU to stop working under high load
conditions. The fix makes sure this workaround is enabled."
* tag 'iommu-fixes-v3.8-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
IOMMU, AMD Family15h Model10-1Fh erratum 746 Workaround
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The IOMMU may stop processing page translations due to a perceived lack
of credits for writing upstream peripheral page service request (PPR)
or event logs. If the L2B miscellaneous clock gating feature is enabled
the IOMMU does not properly register credits after the log request has
completed, leading to a potential system hang.
BIOSes are supposed to disable L2B micellaneous clock gating by setting
L2_L2B_CK_GATE_CONTROL[CKGateL2BMiscDisable](D0F2xF4_x90[2]) = 1b. This
patch corrects that for those which do not enable this workaround.
Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Acked-by: Borislav Petkov <bp@suse.de>
Cc: stable@vger.kernel.org
Signed-off-by: Joerg Roedel <joro@8bytes.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6
Pull MFD fixes from Samuel Ortiz:
"This is the first pull request for MFD fixes for 3.8
We have some build failure fixes (twl4030, vexpress, abx500 and
tps65910), some actual runtime oops and lockup fixes (rtsx, da9052),
and some more hypothetical NULL pointers dereferences fixes for
pcf50633 and max776xx.
Then we also have additional rtsx fixes for a correct switch output
voltage and clock divider correctness for rtl8411 (rtsx driver), and
irqdomain fix for db8550-prcmu, and some more cosmetic fixes for
arizona and wm5102."
* tag 'mfd-for-linus-3.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6:
mfd: rtsx: Fix oops when rtsx_pci_sdmmc is not probed
mfd: wm5102: Fix definition of WM5102_MAX_REGISTER
mfd: twl4030: Don't warn about uninitialized return code
mfd: da9052/53 lockup fix
mfd: rtsx: Add clock divider hook
mmc: rtsx: Call MFD hook to switch output voltage
mfd: rtsx: Add output voltage switch hook
mfd: Fix compile errors and warnings when !CONFIG_AB8500_BM
mfd: vexpress: Export global functions to fix build error
mfd: arizona: Check errors from regcache_sync()
mfd: tc3589x: Use simple irqdomain
mfd: pcf50633: Init pcf->dev before using it
mfd: max77693: Init max77693->dev before using it
mfd: max77686: Init max77686->dev before using it
mfd: db8500-prcmu: Fix irqdomain usage
mfd: tps65910: Select REGMAP_IRQ in Kconfig to fix build error
mfd: arizona: Disable control interface reporting for WM5102 and WM5110
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If rtsx_pci_sdmmc is not probed, function pointer pcr->slots[].card_event
will point to NULL, and thus rtsx_pci_card_detect will reference a NULL
pointer.
Check card_event pointer before referencing it can avoid kernel panic.
Signed-off-by: Wei WANG <wei_wang@realsil.com.cn>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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Updated in latest datasheet.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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If the twl4030_write_script function gets called with
a zero length argument, its return value does not
get set. We know that all scripts have a nonzero
length, but returning an error in case they ever
do is probably appropriate.
Without this patch, building omap2plus_defconfig results in:
drivers/mfd/twl4030-power.c: In function 'load_twl4030_script':
drivers/mfd/twl4030-power.c:414:5: error: 'err' may be used uninitialized in this function
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Cc: "Kristo, Tero" <t-kristo@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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An issue has been reported where the PMIC either locks up or fails to
respond following a system Reset. This could result in a second write
in which the bus writes the current content of the write buffer to address
of the last I2C access.
The failure case is where this unwanted write transfers incorrect data to
a critical register.
This patch fixes this issue to by following any read or write with a dummy read
to a safe register address. A safe register address is one where the contents
will not affect the operation of the system.
Signed-off-by: Ashish Jangam <ashish.jangam@kpitcummins.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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Add callback function conv_clk_and_div_n to convert between SSC clock
and its divider N.
For rtl8411, the formula to calculate SSC clock divider N is different
with the other card reader models.
Signed-off-by: Wei WANG <wei_wang@realsil.com.cn>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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Different card reader has different method to switch output voltage, so
we have to use the callback function provided by MFD driver to switch
output pad voltage.
Signed-off-by: Wei WANG <wei_wang@realsil.com.cn>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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Different card reader has different method to switch output voltage,
add this callback to let the card reader implement its individual switch
function.
This is needed as rtl8411 has a specific switch output voltage procedure.
Signed-off-by: Wei WANG <wei_wang@realsil.com.cn>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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drivers/mfd/ab8500-core.c:1015:21: error: ‘ab8500_bm_data’ undeclared here
include/linux/mfd/abx500/ab8500-bm.h:445:13: warning: ‘ab8500_fg_reinit’ defined but not used
include/linux/mfd/abx500/ab8500-bm.h:448:13: warning: ‘ab8500_charger_usb_state_changed’ defined but not used
include/linux/mfd/abx500/ab8500-bm.h:451:29: warning: ‘ab8500_btemp_get’ defined but not used
include/linux/mfd/abx500/ab8500-bm.h:455:12: warning: ‘ab8500_btemp_get_batctrl_temp’ defined but not used
include/linux/mfd/abx500/ab8500-bm.h:463:12: warning: ‘ab8500_fg_inst_curr_blocking’ defined but not used
include/linux/mfd/abx500/ab8500-bm.h:442:12: warning: ‘ab8500_fg_inst_curr_done’ defined but not used
include/linux/mfd/abx500/ab8500-bm.h:447:26: warning: ‘ab8500_fg_get’ defined but not used
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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Compiling vexpress client drivers as module results in error messages such as
ERROR: "__vexpress_config_func_get" [drivers/hwmon/vexpress.ko] undefined!
ERROR: "vexpress_config_func_put" [drivers/hwmon/vexpress.ko] undefined!
This is because the global functions in drivers/mfd/vexpress-config.c are not
exported. Fix it.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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If the control bus is unrelabile we may hit errors during regcache_sync(),
especially given that it tends to be one the most dense bursts of I/O in
many systems.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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This fixes a regression in the TC3589x driver introduced in
commit 15e27b1088245a2de3b7d09d39cd209212eb16af
"mfd: Provide the tc3589x with its own IRQ domain"
If a system with a TC3589x expander is booted and a base
IRQ is passed from platform data, a legacy domain will
be used. However, since the Ux500 is now switched to use
SPARSE_IRQ, no descriptors get allocated on-the-fly,
and we get a crash.
Fix this by switching to using the simple irqdomain that
will handle this uniformly and also allocates descriptors
explicitly.
Also fix two small whitespace errors in the vicinity while
we're at it.
Cc: stable@kernel.org
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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Current code uses pcf->dev in the dev_err call before setting it to
&client->dev. Fix it.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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Current code uses max77693->dev in the dev_err call before setting it to
&i2c->dev. Fix it.
This patch also includes below cleanups:
- Move checking pdata earlier and show dev_err if no platform data found.
- Remove unnecessary err_regmap goto label.
- Unregister i2c devices if regmap init for muic fails.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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Current code uses max77686->dev in the dev_err call before setting it to
&i2c->dev. Fix it.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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This fixes two issues with the DB8500 PRCMU irqdomain:
- You have to state the irq base 0 to get a linear domain
for the DT case from irq_domain_add_simple()
- The irqdomain was not used to translate the initial irq
request using irq_create_mapping() making the linear
case fail as it was lacking a proper descriptor.
I took this opportunity to fix two lines of whitespace
errors in related code as I was anyway messing around with
it.
Cc: stable@kernel.org
Acked-by Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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TPS65910 mfd driver uses functions that are only avaiable when
REGMAP_IRQ is enabled. So "select REGMAP_IRQ" is added to mfd
Kconfig to fix below build error:
drivers/built-in.o: In function `tps65910_irq_exit':
/media/anil/kernel/drivers/mfd/tps65910.c:265: undefined reference to `regmap_del_irq_chip'
drivers/built-in.o: In function `tps65910_irq_init':
/media/anil/kernel/drivers/mfd/tps65910.c:254: undefined reference to `regmap_add_irq_chip'
drivers/built-in.o: In function `tps65910_i2c_probe':
/media/anil/kernel/drivers/mfd/tps65910.c:509: undefined reference to `regmap_irq_get_domain'
make: *** [vmlinux] Error 1
Signed-off-by: AnilKumar Ch <anilkumar@ti.com>
Tested-by: Matt Porter <mporter@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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Rather than disabling the error reporting only for earlier revisions
unconditionally disable it.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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Pull networking updates from David Miller:
"Much more accumulated than I would have liked due to an unexpected
bout with a nasty flu:
1) AH and ESP input don't set ECN field correctly because the
transport head of the SKB isn't set correctly, fix from Li
RongQing.
2) If netfilter conntrack zones are disabled, we can return an
uninitialized variable instead of the proper error code. Fix from
Borislav Petkov.
3) Fix double SKB free in ath9k driver beacon handling, from Felix
Feitkau.
4) Remove bogus assumption about netns cleanup ordering in
nf_conntrack, from Pablo Neira Ayuso.
5) Remove a bogus BUG_ON in the new TCP fastopen code, from Eric
Dumazet. It uses spin_is_locked() in it's test and is therefore
unsuitable for UP.
6) Fix SELINUX labelling regressions added by the tuntap multiqueue
changes, from Paul Moore.
7) Fix CRC errors with jumbo frame receive in tg3 driver, from Nithin
Nayak Sujir.
8) CXGB4 driver sets interrupt coalescing parameters only on first
queue, rather than all of them. Fix from Thadeu Lima de Souza
Cascardo.
9) Fix regression in the dispatch of read/write registers in dm9601
driver, from Tushar Behera.
10) ipv6_append_data miscalculates header length, from Romain KUNTZ.
11) Fix PMTU handling regressions on ipv4 routes, from Steffen
Klassert, Timo Teräs, and Julian Anastasov.
12) In 3c574_cs driver, add necessary parenthesis to "x << y & z"
expression. From Nickolai Zeldovich.
13) macvlan_get_size() causes underallocation netlink message space,
fix from Eric Dumazet.
14) Avoid division by zero in xfrm_replay_advance_bmp(), from Nickolai
Zeldovich. Amusingly the zero check was already there, we were
just performing it after the modulus :-)
15) Some more splice bug fixes from Eric Dumazet, which fix things
mostly eminating from how we now more aggressively use high-order
pages in SKBs.
16) Fix size calculation bug when freeing hash tables in the IPSEC
xfrm code, from Michal Kubecek.
17) Fix PMTU event propagation into socket cached routes, from Steffen
Klassert.
18) Fix off by one in TX buffer release in netxen driver, from Eric
Dumazet.
19) Fix rediculous memory allocation requirements introduced by the
tuntap multiqueue changes, from Jason Wang.
20) Remove bogus AMD platform workaround in r8169 driver that causes
major problems in normal operation, from Timo Teräs.
21) virtio-net set affinity and select queue don't handle
discontiguous cpu numbers properly, fix from Wanlong Gao.
22) Fix a route refcounting issue in loopback driver, from Eric
Dumazet. There's a similar fix coming that we might add to the
macvlan driver as well.
23) Fix SKB leaks in batman-adv's distributed arp table code, from
Matthias Schiffer.
24) r8169 driver gives descriptor ownership back the hardware before
we're done reading the VLAN tag out of it, fix from Francois
Romieu.
25) Checksums not calculated properly in GRE tunnel driver fix from
Pravin B Shelar.
26) Fix SCTP memory leak on namespace exit."
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (101 commits)
dm9601: support dm9620 variant
SCTP: Free the per-net sysctl table on net exit. v2
net: phy: icplus: fix broken INTR pin settings
net: phy: icplus: Use the RGMII interface mode to configure clock delays
IP_GRE: Fix kernel panic in IP_GRE with GRE csum.
sctp: set association state to established in dupcook_a handler
ip6mr: limit IPv6 MRT_TABLE identifiers
r8169: fix vlan tag read ordering.
net: cdc_ncm: use IAD provided by the USB core
batman-adv: filter ARP packets with invalid MAC addresses in DAT
batman-adv: check for more types of invalid IP addresses in DAT
batman-adv: fix skb leak in batadv_dat_snoop_incoming_arp_reply()
net: loopback: fix a dst refcounting issue
virtio-net: reset virtqueue affinity when doing cpu hotplug
virtio-net: split out clean affinity function
virtio-net: fix the set affinity bug when CPU IDs are not consecutive
can: pch_can: fix invalid error codes
can: ti_hecc: fix invalid error codes
can: c_can: fix invalid error codes
r8169: remove the obsolete and incorrect AMD workaround
...
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dm9620 is a newer variant of dm9601 with more features (usb 2.0, checksum
offload, ..), but it can also be put in a dm9601 compatible mode, allowing
us to reuse the existing driver.
This does mean that the extended features like checksum offload cannot be
used, but that's hardly critical on a 100mbps interface.
Thanks to Sławek Wernikowski <slawek@wernikowski.net> for providing me
with a dm9620 based device to test.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch fixes the setting of the INTR pin that is
valid for IP101 A/G device and not for the IP1001.
Reported-by: Anunay Saxena <anunay.saxena@st.com>
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Like several other PHY devices which support RGMII, the IC+1001 allows
additional delays to by added to the RX_CLK and TX_CLK signals to
compensate for skew between the clock and data signals. Previously this
was always enabled, but this change makes use of the different RGMII
interface modes to allow the user to specify whether this should be
enabled.
Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Control of receive descriptor must not be returned to ethernet chipset
before vlan tag processing is done.
VLAN tag receive word is now reset both in normal and error path.
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Spotted-by: Timo Teras <timo.teras@iki.fi>
Cc: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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commit 9992c2e (net: cdc_ncm: workaround for missing CDC Union)
added code to lookup an IAD for the interface we are probing.
This is redundant. The USB core has already done the lookup
and saved the result in the USB interface struct. Use that
instead.
Cc: Greg Suarez <gsuarez@smithmicro.com>
Cc: Alexey Orishko <alexey.orishko@stericsson.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
John W. Linville says:
====================
This is a batch of fixes intende for the 3.8 stream.
Regarding the iwlwifi bits, Johannes says this:
"Please pull to get a single fix from Emmanuel for a bug I introduced due
to misunderstanding the code."
Regarding the mac80211 bits, Johannes says this:
"I have a few small fixes for you:
* some mesh frames would cause encryption warnings -- fixes from Bob
* scanning would pretty much break an association if we transmitted
anything to the AP while scanning -- fix from Stanislaw
* mode injection was broken by channel contexts -- fix from Felix
* FT roaming was broken: hardware crypto would get disabled by it"
Along with that, a handful of other fixes confined to specific drivers.
Avinash Patil fixes a typo in a NULL check in mwifiex.
Larry Finger fixes a build warning in rtlwifi. Seems safe...
Stanislaw Gruszka fixes iwlegacy to prevent microcode errors when
switching from IBSS mode to STA mode.
Felix Fietkau provides a trio of ath9k fixes related to proper tuning.
Please let me know if there are problems!
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem
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Add missing "!" as we are supposed to check "!card->adapter"
in PCIe suspend handler.
Cc: "3.2+" <stable@vger.kernel.org>
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Reviewed-by: Sergey V. <sftp.mtuci@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Chain swapping should only be enabled when the EEPROM chainmask is set to 5,
regardless of what the runtime chainmask is.
Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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The kbuild test robot reports the following warning with x86_64-randconfig-x955:
warning: (RTL8192CE && RTL8192SE && RTL8192DE && RTL8723AE && RTL8192CU) selects
RTLWIFI which has unmet direct dependencies (NETDEVICES && WLAN &&
(RTL8192CE || RTL8192CU || RTL8192SE || RTL8192DE))
This warning was introduced in commit a290593, "rtlwifi: Modify files for addition
of rtl8723ae", and is d ue to a missing dependence of RTLWIFI on RTL8723AE.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: kbuild test robot <fengguang.wu@intel.com>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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We do not correctly change interface type when switching from
IBSS mode to STA mode, that results in microcode errors.
Resolves:
https://bugzilla.redhat.com/show_bug.cgi?id=886946
Reported-by: Jaroslav Skarvada <jskarvad@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-fixes
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The rate scaling won't treat the information in a frame
with IEEE80211_TX_CTL_AMPDU set if IEEE80211_TX_STAT_AMPDU
is cleared. But all the frames coming from an AGG tx queue
have IEEE80211_TX_CTL_AMPDU set, and IEEE80211_TX_STAT_AMPDU
is set only if the frame was sent in an AMPDU.
This means that all the data in frames in AGG tx queues that
aren't sent as an AMPDU is thrown away.
This is even more harmful when in bad link conditions, the
frames are sent in an AMPDU and then finally sent as single
frame. So a lot of failures weren't reported and the rate
scaling got stuck in high rates leading to very poor
connectivity.
Fix that by clearing IEEE80211_TX_CTL_AMPDU when the frame
isn't part of an AMPDU.
This bug was introduced by
2eb81a40aa521035ff9c8c8309e482dff523f8c9
iwlwifi: don't clear CTL_AMPDU on frame status
This fix basically reverts the aforementioned commit.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Ben Greear reported crashes in ip_rcv_finish() on a stress
test involving many macvlans.
We tracked the bug to a dst use after free. ip_rcv_finish()
was calling dst->input() and got garbage for dst->input value.
It appears the bug is in loopback driver, lacking
a skb_dst_force() before calling netif_rx().
As a result, a non refcounted dst, normally protected by a
RCU read_lock section, was escaping this section and could
be freed before the packet being processed.
[<ffffffff813a3c4d>] loopback_xmit+0x64/0x83
[<ffffffff81477364>] dev_hard_start_xmit+0x26c/0x35e
[<ffffffff8147771a>] dev_queue_xmit+0x2c4/0x37c
[<ffffffff81477456>] ? dev_hard_start_xmit+0x35e/0x35e
[<ffffffff8148cfa6>] ? eth_header+0x28/0xb6
[<ffffffff81480f09>] neigh_resolve_output+0x176/0x1a7
[<ffffffff814ad835>] ip_finish_output2+0x297/0x30d
[<ffffffff814ad6d5>] ? ip_finish_output2+0x137/0x30d
[<ffffffff814ad90e>] ip_finish_output+0x63/0x68
[<ffffffff814ae412>] ip_output+0x61/0x67
[<ffffffff814ab904>] dst_output+0x17/0x1b
[<ffffffff814adb6d>] ip_local_out+0x1e/0x23
[<ffffffff814ae1c4>] ip_queue_xmit+0x315/0x353
[<ffffffff814adeaf>] ? ip_send_unicast_reply+0x2cc/0x2cc
[<ffffffff814c018f>] tcp_transmit_skb+0x7ca/0x80b
[<ffffffff814c3571>] tcp_connect+0x53c/0x587
[<ffffffff810c2f0c>] ? getnstimeofday+0x44/0x7d
[<ffffffff810c2f56>] ? ktime_get_real+0x11/0x3e
[<ffffffff814c6f9b>] tcp_v4_connect+0x3c2/0x431
[<ffffffff814d6913>] __inet_stream_connect+0x84/0x287
[<ffffffff814d6b38>] ? inet_stream_connect+0x22/0x49
[<ffffffff8108d695>] ? _local_bh_enable_ip+0x84/0x9f
[<ffffffff8108d6c8>] ? local_bh_enable+0xd/0x11
[<ffffffff8146763c>] ? lock_sock_nested+0x6e/0x79
[<ffffffff814d6b38>] ? inet_stream_connect+0x22/0x49
[<ffffffff814d6b49>] inet_stream_connect+0x33/0x49
[<ffffffff814632c6>] sys_connect+0x75/0x98
This bug was introduced in linux-2.6.35, in commit
7fee226ad2397b (net: add a noref bit on skb dst)
skb_dst_force() is enforced in dev_queue_xmit() for devices having a
qdisc.
Reported-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Tested-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add a cpu notifier to virtio-net, so that we can reset the
virtqueue affinity if the cpu hotplug happens. It improve
the performance through enabling or disabling the virtqueue
affinity after doing cpu hotplug.
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Eric Dumazet <erdnetdev@gmail.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: virtualization@lists.linux-foundation.org
Cc: netdev@vger.kernel.org
Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Split out the clean affinity function to virtnet_clean_affinity().
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Eric Dumazet <erdnetdev@gmail.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: virtualization@lists.linux-foundation.org
Cc: netdev@vger.kernel.org
Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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As Michael mentioned, set affinity and select queue will not work very
well when CPU IDs are not consecutive, this can happen with hot unplug.
Fix this bug by traversal the online CPUs, and create a per cpu variable
to find the mapping from CPU to the preferable virtual-queue.
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Eric Dumazet <erdnetdev@gmail.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: virtualization@lists.linux-foundation.org
Cc: netdev@vger.kernel.org
Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Errors in CAN protocol (location) are reported in data[3] of the can
frame instead of data[2].
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Olivier Sobrie <olivier@sobrie.be>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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Errors in CAN protocol (location) are reported in data[3] of the can
frame instead of data[2].
Cc: linux-stable <stable@vger.kernel.org>
Cc: Anant Gole <anantgole@ti.com>
Signed-off-by: Olivier Sobrie <olivier@sobrie.be>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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