Dong Aisheng [Wed, 27 May 2015 10:13:30 +0000 (18:13 +0800)]
mmc: sdhci-esdhc-imx: add imx6sx support
The imx6sx usdhc is derived from imx6sl, the difference is minor.
imx6sx have the errata ESDHC_FLAG_ERR004536 fixed.
So introduce a new compatible string for imx6sx to distinguish them.
Dong Aisheng [Wed, 27 May 2015 10:13:29 +0000 (18:13 +0800)]
mmc: sdhci-esdhc-imx: using specific compatible string in binding doc
Using specific compatible string in binding doc to make the binding
more clear.
It's also used to avoid checkpatch warning in the future like follows:
WARNING: DT compatible string "fsl,imx6sx-usdhc" appears un-documented --
check ./Documentation/devicetree/bindings/
+ { .compatible = "fsl,imx6sx-usdhc", .data = &usdhc_imx6sx_data, },
The uSDHC has an ADMA Length Mismatch errata ERR004536 which may
cause ADMA work abnormally. The errata has already been fixed for
i.MX6Q TO1.2 and i.MX6DL TO1.1 by enable the bit 7 in 0x6c register.
Unfortunately this fix is not included in i.MX6SL.
So we disable ADMA for i.MX6SL and use SDMA instead.
Dong Aisheng [Wed, 27 May 2015 10:13:26 +0000 (18:13 +0800)]
mmc: sdhci-esdhc-imx: merge the same register check into one place
In esdhc_writel_le() function, there's duplicated checking of the same
register as follows:
"if (unlikely(reg == SDHCI_INT_ENABLE || reg == SDHCI_SIGNAL_ENABLE))".
Merge them into one and remove the duplicated one.
Adrian Hunter [Fri, 6 Feb 2015 12:12:56 +0000 (14:12 +0200)]
mmc: core: Record card drive strength
In preparation for adding drive strength support
for eMMC, add drive_strength to struct mmc_card
to record the card drive strength for UHS-I modes
and HS200 / HS400. For eMMC this will be needed
when switching between HS200 and HS400.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Adrian Hunter [Fri, 6 Feb 2015 12:12:54 +0000 (14:12 +0200)]
mmc: core: Add 'card' to drive strength selection callback
In preparation for supporting also eMMC drive strength,
add the 'card' as a parameter so that the callback can
distinguish different types of cards if necessary.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Adrian Hunter [Fri, 6 Feb 2015 12:12:53 +0000 (14:12 +0200)]
mmc: core: Simplify card drive strength mask
Card drive strength selection uses a callback to
which a mask of supported drive strengths is passed.
Currently, the bits are checked against the values
in the SD specifications. That is not necessary
because the callback will anyway match the mask
against a valid value. Simplify by taking the mask
as is but still ensuring that the default mandatory
value (type B) is always supported.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Adrian Hunter [Fri, 6 Feb 2015 12:12:52 +0000 (14:12 +0200)]
mmc: core: Allow card drive strength to be different to host
Initialization of UHS-I modes for SD and SDIO cards
employs a callback to allow the host driver to
choose a drive strength value. Currently that
assumes the card drive strength and host driver
type must be the same value. Change to let the
callback make that decision and return both the
card drive strength and host driver type.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Adrian Hunter [Fri, 6 Feb 2015 12:12:51 +0000 (14:12 +0200)]
mmc: core: Reset driver type to default
IO state variable drv_type could be set during card
initialization. Consequently, it must be reset to the
default value when setting the initial state.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
mmc: sh_mmcif: calculate best clock with parent clock
MMCIF IP on R-Car series has parent clock which can be set several rate,
and it was not implemented on old SH-Mobile series (= SH-Mobile series
parent clock was fixed rate) R-Car series MMCIF can use more high speed
access if it setups parent clock. This patch adds parent clock setup
method. It will be used if DT has "max-frequency", and then, this driver
assumes it is booted on R-Car Gen2 or later SoC. Because SH-Mobile series
(which doesn't boot from DT) and R-Car series (which boots from DT) have
different divider.
mmc: sh_mmcif: add sh_mmcif_host_to_dev() macro and use it.
Current sh_mmcif driver is directly using &host->pd->dev in all place.
It is not big problem, but it is unreadable, and it can be cause of
future bug. This patch adds new sh_mmcif_host_to_dev() and use it.
Doug Anderson [Tue, 12 May 2015 21:46:11 +0000 (14:46 -0700)]
mmc: core: Increase delay for voltage to stabilize from 3.3V to 1.8V
Since the regulator used for the SDMMC IO voltage is not expected to
draw a lot of current, most systems will probably use an inexpensive
LDO for it. LDO regulators apparently have the feature that they
don't actively drive the voltage down--they wait for other components
in the system to drag the voltage down. Thus they will transition
faster under heavy loads and slower under light loads.
During an SDMMC voltage change from 3.3V to 1.8V, we are almost
certainly under a light load. To be specific:
* The regulator is hooked through pulls to CMD0-3 and DAT. Probably
the CMD pulls are something like 47K and the DAT is something like
10K.
* The card is supposed to be driving DAT0-3 low during voltage change
which will draw _some_ current, but not a lot.
* The regulator is also provided to the SDMMC host controller, but the
SDMMC host controller is in open drain mode during the voltage
change and so shouldn't be drawing much current.
In order to keep the SDMMC host working properly (or for noise
reasons), there might also be a capacitor attached to the SDMMC IO
regulator. This also will have the effect of slowing down transitions
of the regulator, especially under light loads.
From experimental evidence, we've seen the voltage change fail if the
card doesn't detect that the voltage fell to less than about 2.3V when
we turn on the clock. On one device (that admittedly had a 47K CMD
pullup instead of a 10K CMD pullup) we saw that the voltage was just
about 2.3V after 5ms and thus the voltage change would sometimes fail.
Doubling the delay gave margin and made the voltage change work 100%
of the time, despite the slightly weaker CMD pull.
At the moment submitting this as an RFC patch since my problem _could_
be fixed by increasing the pull strength (or using a smaller
capacitor). However being a little bit more lenient to strange
hardware could also be a good thing.
Signed-off-by: Doug Anderson <dianders@chromium.org> Acked-by: Mark Brown <broonie@kernel.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
mmc: dw_mmc: Use core to handle absent write protect line
Use the new MMC_CAP2_NO_WRITE_PROTECT to let the core handle the case where
no write protect line is present instead of having custom driver code to
handle it.
dw_mci_of_get_slot_quirks() is slightly refactored to directly modify the
mmc_host capabilities instead of returning a quirk mask.
mmc: cast unsigned int to typeof(sector_t) to avoid unexpected error
card->csd.capacity is defined as "unsigned int", and sector_t is defined as
"u64" or "unsigned long" (depends on CONFIG_LBDAF). Thus, sector_t data
might have strange data (see below). This patch cast it to typeof(sector_t)
Special thanks to coverity <http://www.coverity.com>
mmc: cast u8 to unsigned long long to avoid unexpected error
card->ext_csd.enhanced_area_offset is defined as "unsigned long long",
and, ext_csd[] is defined as u8.
unsigned long long data might have strange data if first bit of ext_csd[]
was 1. this patch cast it to (unsigned long long)
Special thanks to coverity <http://www.coverity.com>
Fabio Estevam [Sat, 9 May 2015 12:57:09 +0000 (09:57 -0300)]
mmc: sdhci-esdhc-imx: Do not break platform data boards
The only user of this driver that has not been converted to fully
device tree is the i.MX35 SoC.
There is a i.MX35-based board (mach-pcm043.c) that uses platform data
to pass wp_gpio and cd_gpio information.
Commit 8d86e4fcccf61ba ("mmc: sdhci-esdhc-imx: Call mmc_of_parse()")
broke the platform data case by removing mmc_gpio_request_ro() and
mmc_gpio_request_cd(), so restore the functionality for the non-dt
case.
Also, restore the check for ESDHC_CD_CONTROLLER so that we can still
support the "fsl,cd-controller" property.
mmc: dt: Allow to specify that no write protect signal is present
Allow to specify in the device-tree that no physical write-protect signal
is connected to a particular instance of a MMC controller. Setting the
property will cause the core will assume that the SD card is always
read-write.
The name for the new property is 'disable-wp' and was chosen based on the
property with the same function from the Synopsys designware mobile storage
host controller DT bindings specification.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Cc: Rob Herring <robh+dt@kernel.org> Cc: Pawel Moll <pawel.moll@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Ian Campbell <ijc+devicetree@hellion.org.uk> Cc: Kumar Gala <galak@codeaurora.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
mmc: Add support for disabling write-protect detection
It is not uncommon to see systems where there is no physical write-protect
signal (e.g. when using eMMC or microSD card slots). For some controllers,
which have a dedicated write-protection detection logic (like SDHCI
controllers), the get_ro() callback can return bogus data in such a case.
Instead of handling this on a per controller basis this patch adds a new
capability flag to the MMC core that can be set to specify that the result
of get_ro() is invalid. When the flag is set the core will not call
get_ro() and assume that the card is always read-write.
Adrian Hunter [Thu, 7 May 2015 10:10:22 +0000 (13:10 +0300)]
mmc: core: Flag re-tuning is needed on CRC errors
CRC errors could possibly be alleviated by
re-tuning so flag re-tuning needed in those cases.
Note this has no effect if re-tuning has not been
enabled.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Adrian Hunter [Thu, 7 May 2015 10:10:21 +0000 (13:10 +0300)]
mmc: sdhci: Change to new way of doing re-tuning
Make use of mmc core support for re-tuning instead
of doing it all in the sdhci driver.
This patch also changes to flag the need for re-tuning
always after runtime suspend when tuning has been used
at initialization. Previously it was only done if
the re-tuning timer was in use.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Adrian Hunter [Thu, 7 May 2015 10:10:20 +0000 (13:10 +0300)]
mmc: core: Add support for HS400 re-tuning
HS400 re-tuning must be done in HS200 mode. Add
the ability to switch from HS400 mode to HS200
mode before re-tuning and switch back to HS400
after re-tuning.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Adrian Hunter [Thu, 7 May 2015 10:10:14 +0000 (13:10 +0300)]
mmc: core: Add support for re-tuning before each request
At the start of each request, re-tune if needed and
then hold off re-tuning again until the request is done.
Note that though there is one function that starts
requests (mmc_start_request) there are two that wait for
the request to be done (mmc_wait_for_req_done and
mmc_wait_for_data_req_done). Also note that
mmc_wait_for_data_req_done can return even when the
request is not done (which allows the block driver
to prepare a newly arrived request while still
waiting for the previous request).
This patch ensures re-tuning is held for the duration
of a request. Subsequent patches will also hold
re-tuning at other times when it might cause a
conflict.
In addition, possibly a command is failing because
re-tuning is needed. Use mmc_retune_recheck() to check
re-tuning. At that point re-tuning is held, at least by
the request, so mmc_retune_recheck() flags host->retune_now
if the hold count is 1.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Adrian Hunter [Thu, 7 May 2015 10:10:13 +0000 (13:10 +0300)]
mmc: core: Enable / disable re-tuning
Enable re-tuning when tuning is executed and
disable re-tuning when card is no longer initialized.
In the case of SDIO suspend, the card can keep power.
In that case, re-tuning need not be disabled, but, if
a re-tuning timer is being used, ensure it is disabled
and assume that re-tuning will be needed upon resume
since it is not known how long the suspend will last.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Adrian Hunter [Thu, 7 May 2015 10:10:12 +0000 (13:10 +0300)]
mmc: host: Add facility to support re-tuning
Currently, there is core support for tuning during
initialization. There can also be a need to re-tune
periodically (e.g. sdhci) or to re-tune after the
host controller is powered off (e.g. after PM
runtime suspend / resume) or to re-tune in response
to CRC errors.
The main requirements for re-tuning are:
- ability to enable / disable re-tuning
- ability to flag that re-tuning is needed
- ability to re-tune before any request
- ability to hold off re-tuning if the card is busy
- ability to hold off re-tuning if re-tuning is in
progress
- ability to run a re-tuning timer
To support those requirements 7 members are added to struct
mmc_host:
unsigned int can_retune:1; /* re-tuning can be used */
unsigned int doing_retune:1; /* re-tuning in progress */
unsigned int retune_now:1; /* do re-tuning at next req */
int need_retune; /* re-tuning is needed */
int hold_retune; /* hold off re-tuning */
unsigned int retune_period; /* re-tuning period in secs */
struct timer_list retune_timer; /* for periodic re-tuning */
need_retune is an integer so it can be set without needing
synchronization. hold_retune is a integer to allow nesting.
Various simple functions are provided to set / clear those
variables.
Subsequent patches take those functions into use.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Weijun Yang [Mon, 27 Apr 2015 08:15:13 +0000 (08:15 +0000)]
mmc: sdhci-sirf: fix the tuning count in platform_execute_tuning
hardware has 16bit to record the tuning count, so fix it to 16384.
at the same time, tuned_phases[SIRF_TUNING_COUNT] is useless as the
array is never used, so move it to a variant.
Signed-off-by: Weijun Yang <Weijun.Yang@csr.com> Signed-off-by: Barry Song <Baohua.Song@csr.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
mmc: sh_mmcif: separate sh_mmcif_clk_update() into setup and prepare
Current sh_mmcif_clk_update() is called from probe() and set_ios(),
but, the purpose of later one is just clk_prepare_enable().
No need to setup mmc->f_max/f_min in many times.
This patch separe sh_mmcif_clk_update() into clk_prepare_enable()
and mmc->f_max/f_min setup.
mmc: sh_mmcif: remove unnecessary int clk from struct sh_mmcif_host
struct sh_mmcif_host has 1) int clk, 2) struct clock *hclk,
and host->clk = clk_get_rate(host->hclk).
This int clk is not necessary. Let's remove it.
And, current hclk is confusable naming. Let's rename it to clk.
Andreas Fenkart [Thu, 23 Apr 2015 11:15:42 +0000 (13:15 +0200)]
mmc: sdio: add reset callback to bus operations
Some drivers schedule automatic hw resets. An example is mwifiex,
which schedules a card reset if the command handler between driver
and card firmware becomes out of sync
Signed-off-by: Andreas Fenkart <afenkart@gmail.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Linus Torvalds [Sun, 24 May 2015 18:15:28 +0000 (11:15 -0700)]
Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"This is a set of five fixes: Two MAINTAINER email updates (urgent
because the non-avagotech emails will start bouncing) an lpfc big
endian oops fix, a 256 byte sector hang fix (to eliminate 256 byte
sectors) and a storvsc fix which could cause test unit ready failures
on bringup"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
MAINTAINERS: Revise lpfc maintainers for Avago Technologies ownership of Emulex
MAINTAINERS, be2iscsi: change email domain
sd: Disable support for 256 byte/sector disks
lpfc: Fix breakage on big endian kernels
storvsc: Set the SRB flags correctly when no data transfer is needed
Linus Torvalds [Sat, 23 May 2015 18:28:25 +0000 (11:28 -0700)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
Pull two Ceph fixes from Sage Weil:
"These fix an issue with the RBD notifications when there are topology
changes in the cluster"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
Revert "libceph: clear r_req_lru_item in __unregister_linger_request()"
libceph: request a new osdmap if lingering request maps to no osd
Linus Torvalds [Sat, 23 May 2015 18:14:10 +0000 (11:14 -0700)]
Merge branch 'for-linus-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
Pull btrfs fixes from Chris Mason:
"I fixed up a regression from 4.0 where conversion between different
raid levels would sometimes bail out without converting.
Filipe tracked down a race where it was possible to double allocate
chunks on the drive.
Mark has a fix for fiemap. All three will get bundled off for stable
as well"
* 'for-linus-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
Btrfs: fix regression in raid level conversion
Btrfs: fix racy system chunk allocation when setting block group ro
btrfs: clear 'ret' in btrfs_check_shared() loop
Linus Torvalds [Sat, 23 May 2015 00:34:24 +0000 (17:34 -0700)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"Radeon has two displayport fixes, one for a regression.
i915 regression flicker fix needed so 4.0 can get fixed.
A bunch of msm fixes and a bunch of exynos fixes, these two are
probably a bit larger than I'd like, but most of them seems pretty
good"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (29 commits)
drm/radeon: fix error flag checking in native aux path
drm/radeon: retry dcpd fetch
drm/msm/mdp5: fix incorrect parameter for msm_framebuffer_iova()
drm/exynos: dp: Lower level of EDID read success message
drm/exynos: cleanup exynos_drm_plane
drm/exynos: 'win' is always unsigned
drm/exynos: mixer: don't dump registers under spinlock
drm/exynos: Consolidate return statements in fimd_bind()
drm/exynos: Constify exynos_drm_crtc_ops
drm/exynos: Fix build breakage on !DRM_EXYNOS_FIMD
drm/exynos: mixer: Constify platform_device_id
drm/exynos: mixer: cleanup pixelformat handling
drm/exynos: mixer: also allow NV21 for the video processor
drm/exynos: mixer: remove buffer count handling in vp_video_buffer()
drm/exynos: plane: honor buffer offset for dma_addr
drm/exynos: fb: use drm_format_num_planes to get buffer count
drm/i915: fix screen flickering
drm/msm: fix locking inconsistencies in gpu->destroy()
drm/msm/dsi: Simplify the code to get the number of read byte
drm/msm: Attach assigned encoder to eDP and DSI connectors
...
1) Don't leak ipvs->sysctl_tbl, from Tommi Rentala.
2) Fix neighbour table entry leak in rocker driver, from Ying Xue.
3) Do not emit bonding notifications for unregistered interfaces, from
Nicolas Dichtel.
4) Set ipv6 flow label properly when in TIME_WAIT state, from Florent
Fourcot.
5) Fix regression in ipv6 multicast filter test, from Henning Rogge.
6) do_replace() in various footables netfilter modules is missing a
check for 0 counters in the datastructure provided by the user. Fix
from Dave Jones, and found with trinity.
7) Fix RCU bug in packet scheduler classifier module unloads, from
Daniel Borkmann.
8) Avoid deadlock in tcp_get_info() by using u64_sync. From Eric
Dumzaet.
9) Input packet processing can race with inetdev_destroy() teardown,
fix potential OOPS in ip_error() by explicitly testing whether the
inetdev is still attached. From Eric W Biederman.
10) MLDv2 parser in bridge multicast code breaks too early while
parsing. Fix from Thadeu Lima de Souza Cascardo.
11) Asking for settings on non-zero PHYID doesn't work because we do not
import the command structure from the user and use the PHYID
provided there. Fix from Arun Parameswaran.
12) Fix UDP checksums with IPV6 RAW sockets, from Vlad Yasevich.
13) Missing NF_TABLES depends for TPROXY etc can cause build failures,
fix from Florian Westphal.
14) Fix netfilter conntrack to handle RFC5961 challenge ACKs properly,
from Jesper Dangaard Brouer.
15) If netlink autobind retry fails, we have to reset the sockets portid
back to zero. From Herbert Xu.
16) VXLAN netns exit code unregisters using wrong device, from John W
Linville.
17) Add some USB device IDs to ath3k and btusb bluetooth drivers, from
Dmitry Tunin and Wen-chien Jesse Sung.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (44 commits)
bridge: fix lockdep splat
net: core: 'ethtool' issue with querying phy settings
bridge: fix parsing of MLDv2 reports
ARM: zynq: DT: Use the zynq binding with macb
net: macb: Disable half duplex gigabit on Zynq
net: macb: Document zynq gem dt binding
ipv4: fill in table id when replacing a route
cdc_ncm: Fix tx_bytes statistics
ipv4: Avoid crashing in ip_error
tcp: fix a potential deadlock in tcp_get_info()
net: sched: fix call_rcu() race on classifier module unloads
net: phy: Make sure phy_start() always re-enables the phy interrupts
ipv6: fix ECMP route replacement
ipv6: do not delete previously existing ECMP routes if add fails
Revert "netfilter: bridge: query conntrack about skb dnat"
netfilter: ensure number of counters is >0 in do_replace()
netfilter: nfnetlink_{log,queue}: Register pernet in first place
tcp: don't over-send F-RTO probes
tcp: only undo on partial ACKs in CA_Loss
net/ipv6/udp: Fix ipv6 multicast socket filter regression
...
Linus Torvalds [Fri, 22 May 2015 22:15:30 +0000 (15:15 -0700)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"Three small fixes that have been picked up the last few weeks.
Specifically:
- Fix a memory corruption issue in NVMe with malignant user
constructed request. From Christoph.
- Kill (now) unused blk_queue_bio(), dm was changed to not need this
anymore. From Mike Snitzer.
- Always use blk_schedule_flush_plug() from the io_schedule() path
when flushing a plug, fixing a !TASK_RUNNING warning with md. From
Shaohua"
* 'for-linus' of git://git.kernel.dk/linux-block:
sched: always use blk_schedule_flush_plug in io_schedule_out
nvme: fix kernel memory corruption with short INQUIRY buffers
block: remove export for blk_queue_bio
Linus Torvalds [Fri, 22 May 2015 21:49:55 +0000 (14:49 -0700)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:
"Updates for the input subsystem.
The main change is that we tell joydev not to touch "absolute mice",
such as VMware virtual mouse, as that produced bad result (cursor
stuck in upper right corner) with games"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: smtpe-ts - wait 50mS until polling for pen-up
Input: smtpe-ts - use msecs_to_jiffies() instead of HZ
Input: joydev - don't classify the vmmouse as a joystick
Input: vmmouse - do not reference non-existing version of X driver
Input: alps - fix finger jumps on lifting 2 fingers on v7 touchpad
Input: elantech - fix semi-mt protocol for v3 HW
Input: sx8654 - fix memory allocation check
Problem here is that br_forward_delay_timer_expired() is a timer
handler, calling br_ifinfo_notify() which assumes either rcu_read_lock()
or RTNL are held.
Simplest fix seems to add rcu read lock section.
Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: Josh Boyer <jwboyer@fedoraproject.org> Reported-by: Dominick Grift <dac.override@gmail.com> Cc: Vlad Yasevich <vyasevich@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
net: core: 'ethtool' issue with querying phy settings
When trying to configure the settings for PHY1, using commands
like 'ethtool -s eth0 phyad 1 speed 100', the 'ethtool' seems to
modify other settings apart from the speed of the PHY1, in the
above case.
The ethtool seems to query the settings for PHY0, and use this
as the base to apply the new settings to the PHY1. This is
causing the other settings of the PHY 1 to be wrongly
configured.
The issue is caused by the '_ethtool_get_settings()' API, which
gets called because of the 'ETHTOOL_GSET' command, is clearing
the 'cmd' pointer (of type 'struct ethtool_cmd') by calling
memset. This clears all the parameters (if any) passed for the
'ETHTOOL_GSET' cmd. So the driver's callback is always invoked
with 'cmd->phy_address' as '0'.
The '_ethtool_get_settings()' is called from other files in the
'net/core'. So the fix is applied to the 'ethtool_get_settings()'
which is only called in the context of the 'ethtool'.
Signed-off-by: Arun Parameswaran <aparames@broadcom.com> Reviewed-by: Ray Jui <rjui@broadcom.com> Reviewed-by: Scott Branden <sbranden@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
When more than a multicast address is present in a MLDv2 report, all but
the first address is ignored, because the code breaks out of the loop if
there has not been an error adding that address.
This has caused failures when two guests connected through the bridge
tried to communicate using IPv6. Neighbor discoveries would not be
transmitted to the other guest when both used a link-local address and a
static address.
This only happens when there is a MLDv2 querier in the network.
The fix will only break out of the loop when there is a failure adding a
multicast address.
The mdb before the patch:
dev ovirtmgmt port vnet0 grp ff02::1:ff7d:6603 temp
dev ovirtmgmt port vnet1 grp ff02::1:ff7d:6604 temp
dev ovirtmgmt port bond0.86 grp ff02::2 temp
After the patch:
dev ovirtmgmt port vnet0 grp ff02::1:ff7d:6603 temp
dev ovirtmgmt port vnet1 grp ff02::1:ff7d:6604 temp
dev ovirtmgmt port bond0.86 grp ff02::fb temp
dev ovirtmgmt port bond0.86 grp ff02::2 temp
dev ovirtmgmt port bond0.86 grp ff02::d temp
dev ovirtmgmt port vnet0 grp ff02::1:ff00:76 temp
dev ovirtmgmt port bond0.86 grp ff02::16 temp
dev ovirtmgmt port vnet1 grp ff02::1:ff00:77 temp
dev ovirtmgmt port bond0.86 grp ff02::1:ff00:def temp
dev ovirtmgmt port bond0.86 grp ff02::1:ffa1:40bf temp
Fixes: 08b202b67264 ("bridge br_multicast: IPv6 MLD support.") Reported-by: Rik Theys <Rik.Theys@esat.kuleuven.be> Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@redhat.com> Tested-by: Rik Theys <Rik.Theys@esat.kuleuven.be> Signed-off-by: David S. Miller <davem@davemloft.net>
Nathan Sullivan [Fri, 22 May 2015 14:22:10 +0000 (09:22 -0500)]
net: macb: Disable half duplex gigabit on Zynq
According to the Zynq TRM, gigabit half duplex is not supported. Add a
new cap and compatible string so Zynq can avoid advertising that mode.
Signed-off-by: Nathan Sullivan <nathan.sullivan@ni.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Nathan Sullivan [Fri, 22 May 2015 14:22:09 +0000 (09:22 -0500)]
net: macb: Document zynq gem dt binding
Signed-off-by: Nathan Sullivan <nathan.sullivan@ni.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Michal Kubeček [Fri, 22 May 2015 11:40:09 +0000 (13:40 +0200)]
ipv4: fill in table id when replacing a route
When replacing an IPv4 route, tb_id member of the new fib_alias
structure is not set in the replace code path so that the new route is
ignored.
Fixes: 0ddcf43d5d4a ("ipv4: FIB Local/MAIN table collapse") Signed-off-by: Michal Kubecek <mkubecek@suse.cz> Acked-by: Alexander Duyck <alexander.h.duyck@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Bjørn Mork [Fri, 22 May 2015 11:15:22 +0000 (13:15 +0200)]
cdc_ncm: Fix tx_bytes statistics
The tx_curr_frame_payload field is u32. When we try to calculate a
small negative delta based on it, we end up with a positive integer
close to 2^32 instead. So the tx_bytes pointer increases by about
2^32 for every transmitted frame.
Fix by calculating the delta as a signed long.
Cc: Ben Hutchings <ben.hutchings@codethink.co.uk> Reported-by: Florian Bruhin <me@the-compiler.org> Fixes: 7a1e890e2168 ("usbnet: Fix tx_bytes statistic running backward in cdc_ncm") Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
The following patchset contain Netfilter fixes for your net tree, they are:
1) Fix a race in nfnetlink_log and nfnetlink_queue that can lead to a crash.
This problem is due to wrong order in the per-net registration and netlink
socket events. Patch from Francesco Ruggeri.
2) Make sure that counters that userspace pass us are higher than 0 in all the
x_tables frontends. Discovered via Trinity, patch from Dave Jones.
3) Revert a patch for br_netfilter to rely on the conntrack status bits. This
breaks stateless IPv6 NAT transformations. Patch from Florian Westphal.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
projects / linux-beck.git / log