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Adrian Hunter [Wed, 21 Oct 2015 08:15:46 +0000 (11:15 +0300)]
mmc: sdhci-acpi: Add more ACPI HIDs for Intel controllers
Add ACPI HIDs for Intel host controllers including one
supporting HS400.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Adrian Hunter [Wed, 21 Oct 2015 08:15:45 +0000 (11:15 +0300)]
mmc: sdhci-pci: Add more PCI IDs for Intel controllers
Add PCI IDs for Intel host controllers
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Shawn Lin [Wed, 16 Sep 2015 06:43:01 +0000 (14:43 +0800)]
arm: lpc18xx_defconfig: remove CONFIG_MMC_DW_IDMAC
DesignWare MMC Controller's transfer mode should be decided
at runtime instead of compile-time. So we remove this config
option and read dw_mmc's register to select DMA master.
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Acked-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Shawn Lin [Wed, 16 Sep 2015 06:42:49 +0000 (14:42 +0800)]
arm: hisi_defconfig: remove CONFIG_MMC_DW_IDMAC
DesignWare MMC Controller's transfer mode should be decided
at runtime instead of compile-time. So we remove this config
option and read dw_mmc's register to select DMA master.
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Acked-by: Wei Xu <xuwei5@hisilicon.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Shawn Lin [Wed, 16 Sep 2015 06:42:37 +0000 (14:42 +0800)]
arm: exynos_defconfig: remove CONFIG_MMC_DW_IDMAC
DesignWare MMC Controller's transfer mode should be decided
at runtime instead of compile-time. So we remove this config
option and read dw_mmc's register to select DMA master.
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Acked-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Shawn Lin [Wed, 16 Sep 2015 06:42:20 +0000 (14:42 +0800)]
arc: axs10x_defconfig: remove CONFIG_MMC_DW_IDMAC
DesignWare MMC Controller's transfer mode should be decided
at runtime instead of compile-time. So we remove this config
option and read dw_mmc's register to select DMA master.
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Shawn Lin [Wed, 16 Sep 2015 06:42:05 +0000 (14:42 +0800)]
mips: pistachio_defconfig: remove CONFIG_MMC_DW_IDMAC
DesignWare MMC Controller's transfer mode should be decided
at runtime instead of compile-time. So we remove this config
option and read dw_mmc's register to select DMA master.
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Acked-by: Govindraj Raja <govindraj.raja@imgtec.com>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Shawn Lin [Wed, 16 Sep 2015 06:41:50 +0000 (14:41 +0800)]
Documentation: synopsys-dw-mshc: add bindings for idmac and edmac
synopsys-dw-mshc supports three types of transfer mode. We add
bindings and description for how to use them at runtime.
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Shawn Lin [Wed, 16 Sep 2015 06:41:37 +0000 (14:41 +0800)]
mmc: dw_mmc: use macro for HCON register operations
This patch add some macros for HCON register operations
to make code more readable.
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Shawn Lin [Wed, 16 Sep 2015 06:41:23 +0000 (14:41 +0800)]
mmc: dw_mmc: Add external dma interface support
DesignWare MMC Controller can supports two types of DMA
mode: external dma and internal dma. We get a RK312x platform
integrated dw_mmc and ARM pl330 dma controller. This patch add
edmac ops to support these platforms. I've tested it on RK31xx
platform with edmac mode and RK3288 platform with idmac mode.
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
yangbo lu [Fri, 16 Oct 2015 07:44:03 +0000 (15:44 +0800)]
mmc: sdhci-of-esdhc: avoid writing power control register
The eSDHC doesn't have a standard power control register, so when
writing this register in stack we should do nothing to avoid
incorrect operation.
Signed-off-by: Yangbo Lu <yangbo.lu@freescale.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Sergei Shtylyov [Thu, 15 Oct 2015 22:40:16 +0000 (01:40 +0300)]
DT: mmc: sh_mmcif: document R8A7794 support
Renesas R8A7794 SoC also has the MMCIF controller.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Sergei Shtylyov [Thu, 15 Oct 2015 22:39:39 +0000 (01:39 +0300)]
DT: mmc: sh_mmcif: fix "compatible" property text
The "compatible" property text contradicts even the example given in the MMCIF
binding document itself; moreover, the Renesas MMCIF driver only matches on
the generic "compatible" string and doesn't look for the SoC specific strings
at all. Thus describe "renesas,sh-mmcif" as a fallback value.
Fixes:
b4c27763d749 ("mmc: sh_mmcif: Document DT bindings")
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Sergei Shtylyov [Wed, 14 Oct 2015 20:53:03 +0000 (23:53 +0300)]
mmc: skip reclaiming host on mmc_add_card() error
There's little sense in releasing the host on mmc_add_card() error
immediately after reclaiming it, so reclaim the host only in case
of success.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Luis de Bethencourt [Sat, 10 Oct 2015 16:08:32 +0000 (17:08 +0100)]
mmc: android-goldfish: Allow compiling the driver with COMPILE_TEST
The driver depends on GOLDFISH but there isn't a build dependency
so it's a good idea to allow the driver to always be built when the
COMPILE_TEST option is enabled.
That way, the driver can be built with a config generated by make
allyesconfig and check if a patch would break the build.
Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Heiko Stuebner [Mon, 12 Oct 2015 12:48:30 +0000 (14:48 +0200)]
ARM: dts: rockchip: add tuning related settings to veyron devices
This allows the tuning code to run and use higher speeds on capable cards.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Alexandru M Stan [Mon, 12 Oct 2015 12:48:29 +0000 (14:48 +0200)]
ARM: dts: rockchip: Add drive/sample clocks for rk3288 dw_mmc devices
The drive/sample clocks can be phase shifted. The drive clock
could be used in a future patch to adjust hold times. The sample
clock is used for tuning.
Signed-off-by: Alexandru M Stan <amstan@chromium.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Alexandru M Stan [Mon, 12 Oct 2015 12:48:28 +0000 (14:48 +0200)]
mmc: dw_mmc-rockchip: MMC tuning with the clock phase framework
This algorithm will try 1 degree increments, since there's no way to tell
what resolution the underlying phase code uses. As an added bonus, doing
many tunings yields better results since some tests are run more than once
(ex: if the underlying driver uses 45 degree increments, the tuning code
will try the same angle more than once).
It will then construct a list of good phase ranges (even ranges that cross
360/0), will pick the biggest range then it will set the sample_clk to the
middle of that range.
We do not touch ciu_drive (and by extension define default-drive-phase).
Drive phase is mostly used to define minimum hold times, while one could
write some code to determine what phase meets the minimum hold time (ex 10
degrees) this will not work with the current clock phase framework (which
floors angles, so we'll get 0 deg, and there's no way to know what
resolution the floors happen at). We assume that the default drive angles
set by the hardware are good enough.
If a device has device specific code (like exynos) then that will still
take precedence, otherwise this new code will execute. If the device wants
to tune, but has no sample_clk defined we'll return EIO with an error
message.
Signed-off-by: Alexandru M Stan <amstan@chromium.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Alexandru M Stan [Mon, 12 Oct 2015 12:48:27 +0000 (14:48 +0200)]
mmc: dw_mmc-rockchip: dt-binding: Add tuning related things
Add ciu_drive, ciu_sample clocks and default-sample-phase. This will later
be used by tuning code.
We do not touch ciu_drive (and by extension define default-drive-phase).
Drive phase is mostly used to define minimum hold times, while one could
write some code to determine what phase meets the minimum hold time
(ex 10 degrees) this will not work with the current clock phase framework
(which floors angles, so we'll get 0 deg, and there's no way to know what
resolution the floors happen at). We assume that the default drive angles
set by the hardware are good enough.
Signed-off-by: Alexandru M Stan <amstan@chromium.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Douglas Anderson [Mon, 12 Oct 2015 12:48:26 +0000 (14:48 +0200)]
mmc: dw_mmc: Use mmc_regulator_set_vqmmc in start_signal_voltage_switch
We've introduced a new helper in the MMC core:
mmc_regulator_set_vqmmc(). Let's use this in dw_mmc. Using this new
helper has some advantages:
1. We get the mmc_regulator_set_vqmmc() behavior of trying to match
VQMMC and VMMC when the signal voltage is 3.3V. This ensures max
compatibility.
2. We get rid of a few more warnings when probing unsupported
voltages.
3. We get rid of some non-dw_mmc specific code in dw_mmc.
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Douglas Anderson [Mon, 12 Oct 2015 12:48:25 +0000 (14:48 +0200)]
mmc: core: Add mmc_regulator_set_vqmmc()
This adds logic to the MMC core to set VQMMC. This is expected to be
called by MMC drivers like dw_mmc as part of (or instead of) their
start_signal_voltage_switch() callback.
A few notes:
* When setting the signal voltage to 3.3V we do our best to make VQMMC
and VMMC match. It's been reported that this makes some old cards
happy since they were tested back in the day before UHS when VQMMC
and VMMC were provided by the same regulator. A nice side effect of
this is that we don't end up on the hairy edge of VQMMC (2.7V),
which some EEs claim is a little too close to the minimum for
comfort.
This is done in two steps. At first we try to find a VQMMC within
a 0.3V tolerance of VMMC and if this is not supported by the
supplying regulator we try to find a suitable voltage within the
whole 2.7V-3.6V area of the spec.
* The two step approach is currently necessary, as the used
regulator_set_voltage_triplet(min, target, max) uses a simple
implementation that just tries two basic steps:
regulator_set_voltage(target, max);
regulator_set_voltage(min, target);
So with only one step with 2.7-3.6V borders, if a suitable voltage
is a bit below VMMC, we would directly get the lowest 2.7V
which some boards (like Rockchips) don't like at all.
* When setting the signal voltage to 1.8V or 1.2V we aim for that
specific voltage instead of picking the lowest one in the range.
* We very purposely don't print errors in mmc_regulator_set_vqmmc().
There are cases where the MMC core will try several different
voltages and we don't want to pollute the logs.
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Heiko Stuebner [Mon, 12 Oct 2015 16:00:54 +0000 (18:00 +0200)]
mmc: core: move ocr-bit to voltage translation into separate function
We will shortly need the calculation of an ocr-bit to the actual
voltage in a second place too, so move it from mmc_regulator_set_ocr
to a common function mmc_ocrbitnum_to_vdd to make that possible.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Ulf Hansson [Fri, 2 Oct 2015 08:56:11 +0000 (10:56 +0200)]
mmc: core: Remove MMC_CLKGATE
MMC_CLKGATE was once invented to save power by gating the bus clock at
request inactivity. At that time it served its purpose. The modern way to
deal with power saving for these scenarios, is by using runtime PM.
Nowadays, several host drivers have deployed runtime PM, but for those
that haven't and which still cares power saving at request inactivity,
it's certainly time to deploy runtime PM as it has been around for several
years now.
To simplify code to mmc core and thus decrease maintenance efforts, this
patch removes all code related to MMC_CLKGATE.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
yangbo lu [Thu, 8 Oct 2015 10:36:57 +0000 (18:36 +0800)]
mmc: sdhci-of-esdhc: add quirk SDHCI_QUIRK_BROKEN_TIMEOUT_VAL for ls1021a
Signed-off-by: Yangbo Lu <yangbo.lu@freescale.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
yangbo lu [Thu, 8 Oct 2015 10:36:47 +0000 (18:36 +0800)]
mmc: kconfig: reconfigure MMC_SDHCI_OF_ESDHC option
Freescale eSDHC driver now supports both little-endian and
big-endian mode eSDHC IPs for ARM and PPC. So, MMC_SDHCI_OF_ESDHC
option needs to be reconfigured.
Signed-off-by: Yangbo Lu <yangbo.lu@freescale.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
yangbo lu [Thu, 8 Oct 2015 10:36:36 +0000 (18:36 +0800)]
mmc: sdhci-of-esdhc: support both BE and LE host controller
To support little endian eSDHC controller, we redefine both BE and
LE IO accessors. In the new accessors, use ioread*/iowrite* instead
of in_be32/out_be32 and will select accessors according to endian
mode in probe function.
Signed-off-by: Yangbo Lu <yangbo.lu@freescale.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
yangbo lu [Thu, 8 Oct 2015 10:36:23 +0000 (18:36 +0800)]
mmc: dt: add DT binding for little-endian eSDHC host controller
Signed-off-by: Yangbo Lu <yangbo.lu@freescale.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Adrian Hunter [Tue, 6 Oct 2015 07:26:21 +0000 (10:26 +0300)]
mmc: sdhci-pci: Add another PCI ID for an Intel eMMC host controller
Add another PCI ID for an Intel eMMC host controller.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Douglas Anderson [Wed, 30 Sep 2015 14:07:38 +0000 (16:07 +0200)]
clk: rockchip: Make calculations use rounding
Let's use DIV_ROUND_CLOSEST for rounding, not just truncating
division. This lets us get closer to the right rate.
Before this:
set_phase(86) delay_nums=26 reg[0xf000420c]=0x468 actual_degrees=83
set_phase(89) delay_nums=27 reg[0xf000420c]=0x46c actual_degrees=86
After this:
set_phase(86) delay_nums=27 reg[0xf000420c]=0x46c actual_degrees=86
set_phase(89) delay_nums=28 reg[0xf000420c]=0x470 actual_degrees=90
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Douglas Anderson [Wed, 30 Sep 2015 14:07:37 +0000 (16:07 +0200)]
clk: rockchip: Allow more precision for some mmc clock phases
Because of the inexact nature of the extra MMC delay elements (it's
not possible to keep the phase monotonic and to also make phases (mod
90) > 70), we previously only allowed phases (mod 90) of 22.5, 45,
and 67.5.
But it's not the end of the world if the MMC clock phase goes
non-monotonic. At most we'll be 25 degrees off. It's way better to
test more phases to look for bad ones than to be 25 degrees off, because
in the case of MMC really the point is to find bad phases and get as far
asway from the as possible. If we get to test extra phases by going
slightly non-monotonic then that might be fine. Worst case we would
end up at a phases that's slight differnt than the one we wanted, but
at least we'd still be quite far away from the a bad phase.
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Fold in more precise variance-values of 44-77 instead of 40-80.
Fold in the actual removal of the monotonic requirement and adapt
patch message accordingly.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
kbuild test robot [Mon, 5 Oct 2015 20:01:04 +0000 (04:01 +0800)]
mmc: sdhci-pci: fix simple_return.cocci warnings
drivers/mmc/host/sdhci-pci-core.c:447:1-4: WARNING: end returns can be simpified
Simplify a trivial if-return sequence. Possibly combine with a
preceding function call.
Generated by: scripts/coccinelle/misc/simple_return.cocci
CC: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Ben Hutchings [Mon, 5 Oct 2015 19:31:58 +0000 (20:31 +0100)]
mmc: sdhci-pci: Make sdhci_pci_o2_fujin2_pci_init() static
It has no external callers.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Ben Hutchings [Mon, 5 Oct 2015 19:31:18 +0000 (20:31 +0100)]
mmc: sdhci-pci: Build o2micro support in the same module
sdhci-pci-o2micro.c contains no initialisation and its functions are only
called from shdci-pci.c, so there is no reason for it to be a separate
module, let alone or for it to always be built-in.
- Rename sdhci-pci.c to sdhci-pci-core.c so that the sdhci-pci module
can be built from multiple source files
- Add sdhci-pci-o2micro.c to it
- Remove redundant exports
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Weijun Yang [Sun, 4 Oct 2015 12:04:13 +0000 (12:04 +0000)]
mmc: sirf: fix the capbility to support DDR50
According to hardware spec, validate DDR50 mode
for SDXC.
Signed-off-by: Weijun Yang <york.yang@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Weijun Yang [Sun, 4 Oct 2015 12:04:12 +0000 (12:04 +0000)]
mmc: sdhci: enable tuning for DDR50
CMD19 tuning is also available for DDR50 mode.
Signed-off-by: Weijun Yang <york.yang@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Weijun Yang [Sun, 4 Oct 2015 12:04:11 +0000 (12:04 +0000)]
mmc: core: enable CMD19 tuning for DDR50 mode
As SD Specifications Part1 Physical Layer Specification Version
3.01 says, CMD19 tuning is available for unlocked cards in transfer
state of 1.8V signaling mode. The small difference between v3.00
and 3.01 spec means that CMD19 tuning is also available for DDR50
mode.
Signed-off-by: Weijun Yang <york.yang@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Grant Grundler [Thu, 24 Sep 2015 01:30:33 +0000 (18:30 -0700)]
mmc: block: copy resp[] data on err for MMC_IOC_MULTI_CMD
MMC_IOC_CMD and MMC_IOC_MULTI_CMD ioctl() code currently bails on
any eMMC errors. However, in case there is any resp[] data, we
should attempt to copy resp[] back to user space. The user app
can then determine which command(s) failed in the MMC_IOC_MULTI_CMD
case AND/OR report better diagnostics in both cases.
Gwendal Grignou provided the idea and it was previously implemented
and tested on v3.18 ChromeOS kernel:
https://chromium-review.googlesource.com/#/c/299956
Signed-off-by: Grant Grundler <grundler@chromium.org>
Reviewed-by: Hyung Taek Ryoo <hryoo@nvidia.com>
Reviewed-by: Gwendal Grignou <gwendal@chromium.org>
Tested-by: David Riley <davidriley@chromium.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Shawn Lin [Thu, 24 Sep 2015 00:13:43 +0000 (08:13 +0800)]
mmc: debugfs: implement ios show for SDR12 and SDR25
This patch add MMC_TIMING_UHS_SDR12 and MMC_TIMING_UHS_SDR25
for mmc_ios_show to show the ios->timing if mmc card runs under
these two modes.
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Hans de Goede [Tue, 22 Sep 2015 15:30:26 +0000 (17:30 +0200)]
mmc: sunxi: Add card busy detection
Some sdio wifi modules have not been working reliable with the sunxi-mmc
host code. This turns out to be caused by starting new io-rw commands while
the card signals that it is still busy processing a previous command.
This commit adds card-busy detection to the sunxi-mmc driver which together
with recent core changes to check card-busy before starting io-rw commands
fixes the wifi reliability issues on the Cubietruck and other sunxi boards
using sdio wifi.
Reported-by: Eugene K <sigintmailru@gmail.com>
Suggested-by: Eugene K <sigintmailru@gmail.com>
Cc: Eugene K <sigintmailru@gmail.com>
Cc: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Hans de Goede [Tue, 22 Sep 2015 15:30:25 +0000 (17:30 +0200)]
mmc: Wait for card_busy before starting sdio requests
Some sdio wifi chips will not work properly if we try to start new
sdio-rw requests while the device is signalling that it is busy.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Hans de Goede [Tue, 22 Sep 2015 15:30:24 +0000 (17:30 +0200)]
mmc: Add mmc_is_io_op helper function
Add a helper function to check if an opcode is a sd-io-rw-* opcode.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Jon Hunter [Tue, 22 Sep 2015 09:27:53 +0000 (10:27 +0100)]
mmc: block: Add new ioctl to send multi commands
Certain eMMC devices allow vendor specific device information to be read
via a sequence of vendor commands. These vendor commands must be issued
in sequence and an atomic fashion. One way to support this would be to
add an ioctl function for sending a sequence of commands to the device
atomically as proposed here. These multi commands are simple array of
the existing mmc_ioc_cmd structure.
The structure passed via the ioctl uses a __u64 type to specify the number
of commands (so that the structure is aligned on a 64-bit boundary) and a
zero length array as a header for list of commands to be issued. The
maximum number of commands that can be sent is determined by
MMC_IOC_MAX_CMDS (which defaults to 255 and should be more than
sufficient).
This based upon work by Seshagiri Holi <sholi@nvidia.com>.
Signed-off-by: Seshagiri Holi <sholi@nvidia.com>
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Yangbo Lu [Wed, 16 Sep 2015 06:36:10 +0000 (14:36 +0800)]
mmc: sdhci-pltfm: enable interrupt mode to detect card for ls1021a
Enable interrupt mode to detect card instead of polling mode for
ls1021a by removing the quirk SDHCI_QUIRK_BROKEN_CARD_DETECTION.
This could improve data transferring performance and avoid the call
trace caused by polling card status sometime.
Signed-off-by: Yangbo Lu <yangbo.lu@freescale.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Javier Martinez Canillas [Mon, 21 Sep 2015 12:14:54 +0000 (14:14 +0200)]
mmc: pwrseq_simple: use GPIO descriptors array API
The simple power sequence provider sets a value for multiple GPIOs in one
go so it is better to use the API already provided by the GPIO descriptor
API instead of open coding the same logic.
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Chaotian Jing [Tue, 22 Sep 2015 06:00:44 +0000 (14:00 +0800)]
mmc: mediatek: Add MMC_CAP_RUNTIME_RESUME support
Add MMC_CAP_RUNTIME_RESUME support to save resume time
Drop unnecessary SDC_ARG write
Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Shawn Lin [Tue, 22 Sep 2015 01:20:08 +0000 (09:20 +0800)]
mmc: debugfs: implement ios show for driver type
This patch add ios->drv_type for mmc_ios_show to show the
card's driver type.
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Luis de Bethencourt [Thu, 17 Sep 2015 21:50:25 +0000 (23:50 +0200)]
mmc: omap: Fix module autoload for OF platform driver
This platform driver has a OF device ID table but the OF module
alias information is not created so module autoloading won't work.
Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Luis de Bethencourt [Thu, 17 Sep 2015 21:49:59 +0000 (23:49 +0200)]
mmc: moxart: Fix module autoload for OF platform driver
This platform driver has a OF device ID table but the OF module
alias information is not created so module autoloading won't work.
Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Tobias Klauser [Thu, 17 Sep 2015 13:09:54 +0000 (15:09 +0200)]
mmc: sdhci-pltfm: Use of_property_read_u32 instead of open-coding it
Use of_property_read_u32 instead of of_get_property with return value
checks and endianness conversion.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Javier Martinez Canillas [Wed, 16 Sep 2015 09:12:07 +0000 (11:12 +0200)]
mmc: mmc_spi: Export OF module alias information
Drivers needs to export the OF id table and this be built into
the module or udev won't have the necessary information to autoload
the driver module when the device is registered via OF.
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Dan Carpenter [Wed, 16 Sep 2015 06:19:49 +0000 (09:19 +0300)]
mmc: sdhci-of-at91: remove a line of dead code
The goto is correct and the unreachable "return -EINVAL" should be
removed.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Haibo Chen [Tue, 15 Sep 2015 10:32:58 +0000 (18:32 +0800)]
mmc: sdhci: call sdhci_init() before request irq
sdhci_init() will clear all irqs and set the needed irqs. So
logically sdhci_init() should be called before request irq.
If not, some irqs may be triggled and handled wrongly. Take
the following into consideration, after request irq, if
SDIO card interrupt enabled, a sd card in the sd slot will
trigger a mass of interrupt(SDHCI_INT_CARD_INT), because at
this time, the vmmc-regulator still not restore, no voltage
supply for the sd card, so the pin of data0~data3 change and
keep low, interrupt(SDHCI_INT_CARD_INT) will rise up ceaselessly.
Due to we already reguest irq, system will be busy in handling
this endless irq, can't response to other event.
So we should call sdhci_init() before request irq in sd resume.
Signed-off-by: Haibo Chen <haibo.chen@freescale.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Javier Martinez Canillas [Wed, 16 Sep 2015 09:53:20 +0000 (11:53 +0200)]
mmc: sdhci-bcm-kona: fix logic to check for 8-bit data width
The driver prints if the data width is 8-bit but it's using a
binary OR instead of a binary AND so it will always report as
"is_8bit=Y" regardless of the flags in host->mmc->caps.
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Reviewed-by: Ray Jui <rjui@broadcom.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Javier Martinez Canillas [Mon, 14 Sep 2015 12:00:35 +0000 (14:00 +0200)]
mmc: pwrseq: use gpiod_get() instead of index 0
The gpiod_get() function expands to gpiod_get_index() with index 0
so it's better to use it since is easier to read and more concise.
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Ulf Hansson [Tue, 15 Sep 2015 13:19:45 +0000 (15:19 +0200)]
mmc: core: Convert __mmc_switch() into an internal core function
As there are no users of the __mmc_switch() API, except for the mmc core
itself, let's convert it from an exported function into an internal.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Javier Martinez Canillas [Wed, 16 Sep 2015 09:30:04 +0000 (11:30 +0200)]
mmc: vub300: Remove unneded semicolons
They aren't needed and are just creating null statements so remove it.
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Javier Martinez Canillas [Wed, 16 Sep 2015 09:30:03 +0000 (11:30 +0200)]
mmc: wbsd: Remove unneded semicolon
It's not needed an is just creating a null statement, so remove it.
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Yousong Zhou [Wed, 9 Sep 2015 16:33:16 +0000 (00:33 +0800)]
mmc: sd: Remove superfluous error code assignment
Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Ulf Hansson [Fri, 11 Sep 2015 12:41:55 +0000 (14:41 +0200)]
mmc: core: Keep host claimed while invoking mmc_power_off|up()
As mmc_claim_host() invokes pm_runtime_get_sync() for the mmc host device,
it's important that the host is kept claimed for *all* accesses to it via
the host_ops callbacks.
In some code paths for SDIO, particularly related to the PM support,
mmc_power_off|up() is invoked without keeping the host claimed. Let's fix
these.
Moreover, mmc_start|stop_host() also invokes mmc_power_off|up() without
claiming the host, let's fix these as well.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Michele Curti [Sat, 5 Sep 2015 06:49:52 +0000 (08:49 +0200)]
mmc: sdhci-acpi: detect sd card reader on asus x205ta
Add an entry to the sdhci_acpi_uids list to detect the SD card
reader on the Asus X205Ta laptop.
dstd table:
Device (SDHC)
{
Name (_ADR, Zero) // _ADR: Address
Name (_HID, "PNP0FFF") // _HID: Hardware ID
Name (_CID, "PNP0D40" /* SDA Standard Compliant SD Host Controller */)
Name (_DDN, "Intel(R) SD Card Controller -
80860F16") // _DDN: DOS Dev
Name (_UID, 0x03) // _UID: Unique ID
Name (RDEP, Package (0x02)
Signed-off-by: Michele Curti <michele.curti@gmail.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Linus Torvalds [Sun, 25 Oct 2015 01:39:47 +0000 (10:39 +0900)]
Linux 4.3-rc7
Linus Torvalds [Fri, 23 Oct 2015 22:52:59 +0000 (07:52 +0900)]
Merge tag 'usb-4.3-rc7' of git://git./linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are three xhci driver fixes for reported issues for 4.3-rc7
All have been in linux-next for a while with no problems"
* tag 'usb-4.3-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
xhci: Add spurious wakeup quirk for LynxPoint-LP controllers
xhci: handle no ping response error properly
xhci: don't finish a TD if we get a short transfer event mid TD
Linus Torvalds [Fri, 23 Oct 2015 22:52:09 +0000 (07:52 +0900)]
Merge tag 'tty-4.3-rc7' of git://git./linux/kernel/git/gregkh/tty
Pull tty/serial fixes from Greg KH:
"Here are two fixes that resolve reported issues, one with the 8250
driver, and the other with the generic fbcon driver.
Both have been in linux-next for a while"
* tag 'tty-4.3-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
fbcon: initialize blink interval before calling fb_set_par
Revert "serial: 8250_dma: don't bother DMA with small transfers"
Linus Torvalds [Fri, 23 Oct 2015 22:51:13 +0000 (07:51 +0900)]
Merge tag 'staging-4.3-rc7' of git://git./linux/kernel/git/gregkh/staging
Pull staging driver fixes from Greg KH:
"Here are four iio driver fixes for 4.3-rc7, fixing some reported
issues. All of these have been in linux-next for a while"
* tag 'staging-4.3-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
iio: mxs-lradc: Fix temperature offset
iio: accel: sca3000: memory corruption in sca3000_read_first_n_hw_rb()
iio: st_accel: fix interrupt handling on LIS3LV02
iio: adc: twl4030: Fix ADC[3:6] readings
Linus Torvalds [Fri, 23 Oct 2015 22:28:05 +0000 (07:28 +0900)]
Merge tag 'for-linus' of git://git./linux/kernel/git/dledford/rdma
Pull infiniband fixes from Doug Ledford:
"It's late in the game, I know, but these fixes seemed important enough
to warrant a late pull request. They all involve oopses or use after
frees or corruptions.
Six serious fixes:
- Hold the mutex around the find and corresponding update of our gid
- The ifa list is rcu protected, copy its contents under rcu to avoid
using a freed structure
- On error, netdev might be null, so check it before trying to
release it
- On init, if workqueue alloc fails, fail init
- The new demux patches exposed a bug in mlx5 and ipath drivers, we
need to use the payload P_Key to determine the P_Key the packet
arrived on because the hardware doesn't tell us the truth
- Due to a couple convoluted error flows, it is possible for the CM
to trigger a use_after_free and a double_free of rb nodes. Add two
checks to prevent that. This code has worked for 10+ years. It is
likely that some of the recent changes have caused this issue to
surface. The current patch will protect us from nasty events for
now while we track down why this is just now showing up"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma:
IB/cm: Fix rb-tree duplicate free and use-after-free
IB/cma: Use inner P_Key to determine netdev
IB/ucma: check workqueue allocation before usage
IB/cma: Potential NULL dereference in cma_id_from_event
IB/core: Fix use after free of ifa
IB/core: Fix memory corruption in ib_cache_gid_set_default_gid
Linus Torvalds [Fri, 23 Oct 2015 22:23:52 +0000 (07:23 +0900)]
Merge tag 'dm-4.3-fixes-4' of git://git./linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:
"Three stable fixes (two in btree code used by DM thinp and one to
properly store flags in DM cache metadata's superblock)"
* tag 'dm-4.3-fixes-4' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm cache: the CLEAN_SHUTDOWN flag was not being set
dm btree: fix leak of bufio-backed block in btree_split_beneath error path
dm btree remove: fix a bug when rebalancing nodes after removal
Linus Torvalds [Fri, 23 Oct 2015 22:20:57 +0000 (07:20 +0900)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-block
Pull block layer fixes from Jens Axboe:
"A final set of fixes for 4.3.
It is (again) bigger than I would have liked, but it's all been
through the testing mill and has been carefully reviewed by multiple
parties. Each fix is either a regression fix for this cycle, or is
marked stable. You can scold me at KS. The pull request contains:
- Three simple fixes for NVMe, fixing regressions since 4.3. From
Arnd, Christoph, and Keith.
- A single xen-blkfront fix from Cathy, fixing a NULL dereference if
an error is returned through the staste change callback.
- Fixup for some bad/sloppy code in nbd that got introduced earlier
in this cycle. From Markus Pargmann.
- A blk-mq tagset use-after-free fix from Junichi.
- A backing device lifetime fix from Tejun, fixing a crash.
- And finally, a set of regression/stable fixes for cgroup writeback
from Tejun"
* 'for-linus' of git://git.kernel.dk/linux-block:
writeback: remove broken rbtree_postorder_for_each_entry_safe() usage in cgwb_bdi_destroy()
NVMe: Fix memory leak on retried commands
block: don't release bdi while request_queue has live references
nvme: use an integer value to Linux errno values
blk-mq: fix use-after-free in blk_mq_free_tag_set()
nvme: fix 32-bit build warning
writeback: fix incorrect calculation of available memory for memcg domains
writeback: memcg dirty_throttle_control should be initialized with wb->memcg_completions
writeback: bdi_writeback iteration must not skip dying ones
writeback: fix bdi_writeback iteration in wakeup_dirtytime_writeback()
writeback: laptop_mode_timer_fn() needs rcu_read_lock() around bdi_writeback iteration
nbd: Add locking for tasks
xen-blkfront: check for null drvdata in blkback_changed (XenbusStateClosing)
Linus Torvalds [Fri, 23 Oct 2015 22:19:33 +0000 (07:19 +0900)]
Merge branch 'for-linus' of git://git./linux/kernel/git/sage/ceph-client
Pull Ceph fixes from Sage Weil:
"Two fixes.
One is a stopgap to prevent a stack blowout when users have a deep
chain of image clones. (We'll rewrite this code to be non-recursive
for the next window, but in the meantime this is a simple fix that
avoids a crash.)
The second fixes a refcount underflow"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
rbd: prevent kernel stack blow up on rbd map
rbd: don't leak parent_spec in rbd_dev_probe_parent()
Linus Torvalds [Fri, 23 Oct 2015 22:17:58 +0000 (07:17 +0900)]
Merge branch 'for-linus-4.3' of git://git./linux/kernel/git/mason/linux-btrfs
Pull btrfs fixes from Chris Mason:
"I have two more small fixes this week:
Qu's fix avoids unneeded COW during fallocate, and Christian found a
memory leak in the error handling of an earlier fix"
* 'for-linus-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
btrfs: fix possible leak in btrfs_ioctl_balance()
btrfs: Avoid truncate tailing page if fallocate range doesn't exceed inode size
Joe Thornber [Thu, 22 Oct 2015 17:10:55 +0000 (18:10 +0100)]
dm cache: the CLEAN_SHUTDOWN flag was not being set
If the CLEAN_SHUTDOWN flag is not set when a cache is loaded then all cache
blocks are marked as dirty and a full writeback occurs.
__commit_transaction() is responsible for setting/clearing
CLEAN_SHUTDOWN (based the flags_mutator that is passed in).
Fix this issue, of the cache's on-disk flags being wrong, by making sure
__commit_transaction() does not reset the flags after the mutator has
altered the flags in preparation for them being serialized to disk.
before:
sb_flags = mutator(le32_to_cpu(disk_super->flags));
disk_super->flags = cpu_to_le32(sb_flags);
disk_super->flags = cpu_to_le32(cmd->flags);
after:
disk_super->flags = cpu_to_le32(cmd->flags);
sb_flags = mutator(le32_to_cpu(disk_super->flags));
disk_super->flags = cpu_to_le32(sb_flags);
Reported-by: Bogdan Vasiliev <bogdan.vasiliev@gmail.com>
Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org
Mike Snitzer [Thu, 22 Oct 2015 14:56:40 +0000 (10:56 -0400)]
dm btree: fix leak of bufio-backed block in btree_split_beneath error path
btree_split_beneath()'s error path had an outstanding FIXME that speaks
directly to the potential for _not_ cleaning up a previously allocated
bufio-backed block.
Fix this by releasing the previously allocated bufio block using
unlock_block().
Reported-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Acked-by: Joe Thornber <thornber@redhat.com>
Cc: stable@vger.kernel.org
Joe Thornber [Wed, 21 Oct 2015 17:36:49 +0000 (18:36 +0100)]
dm btree remove: fix a bug when rebalancing nodes after removal
Commit
4c7e309340ff ("dm btree remove: fix bug in redistribute3") wasn't
a complete fix for redistribute3().
The redistribute3 function takes 3 btree nodes and shares out the entries
evenly between them. If the three nodes in total contained
(MAX_ENTRIES * 3) - 1 entries between them then this was erroneously getting
rebalanced as (MAX_ENTRIES - 1) on the left and right, and (MAX_ENTRIES + 1) in
the center.
Fix this issue by being more careful about calculating the target number
of entries for the left and right nodes.
Unit tested in userspace using this program:
https://github.com/jthornber/redistribute3-test/blob/master/redistribute3_t.c
Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org
Ilya Dryomov [Sun, 11 Oct 2015 17:38:00 +0000 (19:38 +0200)]
rbd: prevent kernel stack blow up on rbd map
Mapping an image with a long parent chain (e.g. image foo, whose parent
is bar, whose parent is baz, etc) currently leads to a kernel stack
overflow, due to the following recursion in the reply path:
rbd_osd_req_callback()
rbd_obj_request_complete()
rbd_img_obj_callback()
rbd_img_parent_read_callback()
rbd_obj_request_complete()
...
Limit the parent chain to 16 images, which is ~5K worth of stack. When
the above recursion is eliminated, this limit can be lifted.
Fixes: http://tracker.ceph.com/issues/12538
Cc: stable@vger.kernel.org # 3.10+, needs backporting for < 4.2
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Josh Durgin <jdurgin@redhat.com>
Ilya Dryomov [Sun, 11 Oct 2015 17:38:00 +0000 (19:38 +0200)]
rbd: don't leak parent_spec in rbd_dev_probe_parent()
Currently we leak parent_spec and trigger a "parent reference
underflow" warning if rbd_dev_create() in rbd_dev_probe_parent() fails.
The problem is we take the !parent out_err branch and that only drops
refcounts; parent_spec that would've been freed had we called
rbd_dev_unparent() remains and triggers rbd_warn() in
rbd_dev_parent_put() - at that point we have parent_spec != NULL and
parent_ref == 0, so counter ends up being -1 after the decrement.
Redo rbd_dev_probe_parent() to fix this.
Cc: stable@vger.kernel.org # 3.10+, needs backporting for < 4.2
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Alex Elder <elder@linaro.org>
Linus Torvalds [Fri, 23 Oct 2015 13:34:32 +0000 (22:34 +0900)]
Merge branch 'x86-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
"Misc fixes: two KASAN fixes, two EFI boot fixes, two boot-delay
optimization fixes, and a fix for a IRQ handling hang observed on
virtual platforms"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mm, kasan: Silence KASAN warnings in get_wchan()
compiler, atomics, kasan: Provide READ_ONCE_NOCHECK()
x86, kasan: Fix build failure on KASAN=y && KMEMCHECK=y kernels
x86/smpboot: Fix CPU #1 boot timeout
x86/smpboot: Fix cpu_init_udelay=10000 corner case boot parameter misbehavior
x86/ioapic: Disable interrupts when re-routing legacy IRQs
x86/setup: Extend low identity map to cover whole kernel range
x86/efi: Fix multiple GOP device support
Linus Torvalds [Fri, 23 Oct 2015 13:31:39 +0000 (22:31 +0900)]
Merge branch 'sched-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull scheduler fixes from Ingo Molnar:
"Misc fixes all around the map: an instrumentation fix, a nohz
usability fix, a lockdep annotation fix and two task group scheduling
fixes"
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/core: Add missing lockdep_unpin() annotations
sched/deadline: Fix migration of SCHED_DEADLINE tasks
nohz: Revert "nohz: Set isolcpus when nohz_full is set"
sched/fair: Update task group's load_avg after task migration
sched/fair: Fix overly small weight for interactive group entities
sched, tracing: Stop/start critical timings around the idle=poll idle loop
Linus Torvalds [Fri, 23 Oct 2015 13:10:51 +0000 (22:10 +0900)]
Merge branch 'akpm' (patches from Andrew)
Merge fixes from Andrew Morton:
"9 fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
ocfs2/dlm: unlock lockres spinlock before dlm_lockres_put
fault-inject: fix inverted interval/probability values in printk
lib/Kconfig.debug: disable -Wframe-larger-than warnings with KASAN=y
mm: make sendfile(2) killable
thp: use is_zero_pfn() only after pte_present() check
mailmap: update Javier Martinez Canillas' email
MAINTAINERS: add Sergey as zsmalloc reviewer
mm: cma: fix incorrect type conversion for size during dma allocation
kmod: don't run async usermode helper as a child of kworker thread
Peter Zijlstra [Fri, 23 Oct 2015 09:50:08 +0000 (11:50 +0200)]
sched/core: Add missing lockdep_unpin() annotations
Luca and Wanpeng reported two missing annotations that led to
false lockdep complaints. Add the missing annotations.
Reported-by: Luca Abeni <luca.abeni@unitn.it>
Reported-by: Wanpeng Li <wanpeng.li@hotmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Juri Lelli <juri.lelli@arm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes:
cbce1a686700 ("sched,lockdep: Employ lock pinning")
Link: http://lkml.kernel.org/r/20151023095008.GY17308@twins.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Linus Torvalds [Fri, 23 Oct 2015 09:49:51 +0000 (18:49 +0900)]
Merge tag 'powerpc-4.3-5' of git://git./linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
- Revert "Use the POWER8 Micro Partition Prefetch Engine in KVM HV on
POWER8" from Paul
- Handle irq_happened flag correctly in off-line loop from Paul
- Validate rtas.entry before calling enter_rtas() from Vasant
* tag 'powerpc-4.3-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/rtas: Validate rtas.entry before calling enter_rtas()
powerpc/powernv: Handle irq_happened flag correctly in off-line loop
powerpc: Revert "Use the POWER8 Micro Partition Prefetch Engine in KVM HV on POWER8"
Linus Torvalds [Fri, 23 Oct 2015 09:38:00 +0000 (18:38 +0900)]
Merge tag 'fixes-for-linus' of git://git./linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Arnd Bergmann:
"Most of the changes this time are for incorrect device nodes in
various ways, on on imx, berlin, exynos, ux500, uniphier, omap and
meson.
Chen-Yu Tsai now co-maintains mach-sunxi (Allwinner).
Other bug fixes include
- a partial revert of a broken tegra gpio patch
- irq affinity for arm ccn
- suspend on one Armada 385 machine
- enable ZONE_DMA to avoid an OMAP crash for over 2GB RAM
- turning on a regulator on beagleboard-x15 for HDMI
- making the omap gpmc debug code visible
- setup of orion network switch
- a rare build regression for pxa"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (22 commits)
ARM: OMAP2+: Fix imprecise external abort caused by bogus SRAM init
thermal: exynos: Fix register read in TMU
ARM: OMAP2+: Fix oops with LPAE and more than 2GB of memory
ARM: tegra: Comment out gpio-ranges properties
ARM: dts: uniphier: fix IRQ number for devices on PH1-LD6b ref board
drivers/perf: arm_pmu: avoid CPU device_node reference leak
bus: arm-ccn: Fix irq affinity setting on CPU migration
bus: arm-ccn: Handle correctly no-more-cpus case
ARM: mvebu: correct a385-db-ap compatible string
ARM: meson6: DTS: Fix wrong reg mapping and IRQ numbers
MAINTAINERS: Update Allwinner entry and add new maintainer
ARM: ux500: modify initial levelshifter status
ARM: pxa: fix pxa3xx DFI lockup hack
Documentation: ARM: List new omap MMC requirements
memory: omap-gpmc: dump "before" state before first modification
memory: omap-gpmc: Fix unselectable debug option for GPMC
ARM: dts: am57xx-beagle-x15: set VDD_SD to always-on
ARM: dts: Fix audio card detection on Peach boards
ARM: EXYNOS: Fix double of_node_put() when parsing child power domains
ARM: orion: Fix DSA platform device after mvmdio conversion
...
Linus Torvalds [Fri, 23 Oct 2015 09:32:29 +0000 (18:32 +0900)]
Merge tag 'for-linus' of git://git./virt/kvm/kvm
Pull KVM bugfixes from Paolo Bonzini:
"Bug fixes for ARM, mostly 4.3 regressions related to virtual interrupt
controller changes"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
arm/arm64: KVM: Fix disabled distributor operation
arm/arm64: KVM: Clear map->active on pend/active clear
arm/arm64: KVM: Fix arch timer behavior for disabled interrupts
KVM: arm: use GIC support unconditionally
KVM: arm/arm64: Fix memory leak if timer initialization fails
KVM: arm/arm64: Do not inject spurious interrupts
Linus Torvalds [Fri, 23 Oct 2015 09:24:33 +0000 (18:24 +0900)]
Merge tag 'trace-fixes-v4.3-rc6' of git://git./linux/kernel/git/rostedt/linux-trace
Pull tracing fixes from Steven Rostedt:
"Running tests on other changes, the system locked up due to lots of
warnings. It was caused by the stack tracer triggering a warning
about using rcu_dereference() when RCU was not watching. This can
happen due to the fact that the stack tracer uses the function tracer
to check each function, and there are functions that may be called and
traced when RCU stopped watching. Namely when a function is called
just before going idle or to userspace and after RCU stopped watching
that current CPU.
The first patch makes sure that RCU is watching when the stack tracer
uses RCU. The second patch is to make sure that the stack tracer does
not get called by functions in NMI, as it's not NMI safe"
* tag 'trace-fixes-v4.3-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracing: Do not allow stack_tracer to record stack in NMI
tracing: Have stack tracer force RCU to be watching
Linus Torvalds [Fri, 23 Oct 2015 09:21:55 +0000 (18:21 +0900)]
Merge tag 'sound-4.3-rc7' of git://git./linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"There is nothing to worry you much, only a few small & stable patches
are found for usual stuff, HD-audio (a Lenovo laptop quirk, a fix for
minor error handling) and ASoC (trivial fixes for RT298 and WM
codecs).
The only remaining major change is the fix for ASoC SX_TLV control
that was overseen during refactoring, but the fix itself is trivial
and safe"
* tag 'sound-4.3-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ASoC: wm8962: mark cache_dirty flag after software reset in pm_resume
ASoC: rt298: fix wrong setting of gpio2_en
ASoC: wm8904: Correct number of EQ registers
ALSA: hda - Fix deadlock at error in building PCM
ASoC: Add info callback for SX_TLV controls
ASoC: rt298: correct index default value
ALSA: hda - Fix inverted internal mic on Lenovo G50-80
ALSA: hdac: Explicitly add io.h
Linus Torvalds [Fri, 23 Oct 2015 09:15:20 +0000 (18:15 +0900)]
Merge tag 'media/v4.3-4' of git://git./linux/kernel/git/mchehab/linux-media
Pull media fixes from Mauro Carvalho Chehab:
"Some regression fixes and potential security issues:
- netup_unidvb: fix potential crash when spi is NULL
- rtl28xxu: fix control message flaws
- m88ds3103: fix a regression on Kernel 4.2
- c8sectpfe: fix some issues on this new driver
- v4l2-flash-led-class: fix a Kbuild dependency
- si2157 and si2158: check for array boundary when uploading firmware
files
- horus3a and lnbh25: fix some building troubles when some options
aren't selected
- ir-hix5hd2: drop the use of IRQF_NO_SUSPEND"
* tag 'media/v4.3-4' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
[media] m88ds3103: use own reg update_bits() implementation
[media] rtl28xxu: fix control message flaws
[media] v4l2-flash-led-class: Add missing VIDEO_V4L2 Kconfig dependency
[media] netup_unidvb: fix potential crash when spi is NULL
[media] si2168: Bounds check firmware
[media] si2157: Bounds check firmware
[media] ir-hix5hd2: drop the use of IRQF_NO_SUSPEND
[media] c8sectpfe: fix return of garbage
[media] c8sectpfe: fix ininitialized error return on firmware load failure
[media] lnbh25: Fix lnbh25_attach() function return type
[media] horus3a: Fix horus3a_attach() function parameters
Linus Torvalds [Fri, 23 Oct 2015 09:08:22 +0000 (18:08 +0900)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"I've been a bit slow gathering these:
- drm/mst: one mutex leak in a fail path
- radeon: two oops fixes, one dpm fix
- i915: one messy set of fixes, where we revert the original fix, and
pull back the proper set of fixes from -next on top.
- nouveau: one fix for an illegal buffer placement.
Doesn't look too bad, hopefully shouldn't be too much more"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/nouveau/gem: return only valid domain when there's only one
drm: fix mutex leak in drm_dp_get_mst_branch_device
drm/amdgpu: add missing dpm check for KV dpm late init
drm/amdgpu/dpm: don't add pwm attributes if DPM is disabled
drm/radeon/dpm: don't add pwm attributes if DPM is disabled
drm/i915: Add primary plane to mask if it's visible
drm/i915: Move sprite/cursor plane disable to intel_sanitize_crtc()
drm/i915: Assign hwmode after encoder state readout
Revert "drm/i915: Add primary plane to mask if it's visible"
drm/i915: Deny wrapping an userptr into a framebuffer
drm/i915: Enable DPLL VGA mode before P1/P2 divider write
drm/i915: Restore lost DPLL register write on gen2-4
drm/i915: Flush pipecontrol post-sync writes
drm/i915: Fix kerneldoc for i915_gem_shrink_all
Joseph Qi [Thu, 22 Oct 2015 20:32:29 +0000 (13:32 -0700)]
ocfs2/dlm: unlock lockres spinlock before dlm_lockres_put
dlm_lockres_put will call dlm_lockres_release if it is the last
reference, and then it may call dlm_print_one_lock_resource and
take lockres spinlock.
So unlock lockres spinlock before dlm_lockres_put to avoid deadlock.
Signed-off-by: Joseph Qi <joseph.qi@huawei.com>
Cc: Mark Fasheh <mfasheh@suse.de>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Florian Westphal [Thu, 22 Oct 2015 20:32:27 +0000 (13:32 -0700)]
fault-inject: fix inverted interval/probability values in printk
interval displays the probability and vice versa.
Fixes:
6adc4a22f20bb ("fault-inject: add ratelimit option")
Acked-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andrey Ryabinin [Thu, 22 Oct 2015 20:32:24 +0000 (13:32 -0700)]
lib/Kconfig.debug: disable -Wframe-larger-than warnings with KASAN=y
When the kernel compiled with KASAN=y, GCC adds redzones for each
variable on stack. This enlarges function's stack frame and causes:
'warning: the frame size of X bytes is larger than Y bytes'
The worst case I've seen for now is following:
../net/wireless/nl80211.c: In function `nl80211_send_wiphy':
../net/wireless/nl80211.c:1731:1: warning: the frame size of 5448 bytes is larger than 2048 bytes [-Wframe-larger-than=]
That kind of warning becomes useless with KASAN=y. It doesn't
necessarily indicate that there is some problem in the code, thus we
should turn it off.
(The KASAN=y stack size in increased from 16k to 32k for this reason)
Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Acked-by: Abylay Ospan <aospan@netup.ru>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Mauro Carvalho Chehab <m.chehab@samsung.com>
Cc: Kozlov Sergey <serjk@netup.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jan Kara [Thu, 22 Oct 2015 20:32:21 +0000 (13:32 -0700)]
mm: make sendfile(2) killable
Currently a simple program below issues a sendfile(2) system call which
takes about 62 days to complete in my test KVM instance.
int fd;
off_t off = 0;
fd = open("file", O_RDWR | O_TRUNC | O_SYNC | O_CREAT, 0644);
ftruncate(fd, 2);
lseek(fd, 0, SEEK_END);
sendfile(fd, fd, &off, 0xfffffff);
Now you should not ask kernel to do a stupid stuff like copying 256MB in
2-byte chunks and call fsync(2) after each chunk but if you do, sysadmin
should have a way to stop you.
We actually do have a check for fatal_signal_pending() in
generic_perform_write() which triggers in this path however because we
always succeed in writing something before the check is done, we return
value > 0 from generic_perform_write() and thus the information about
signal gets lost.
Fix the problem by doing the signal check before writing anything. That
way generic_perform_write() returns -EINTR, the error gets propagated up
and the sendfile loop terminates early.
Signed-off-by: Jan Kara <jack@suse.com>
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Minchan Kim [Thu, 22 Oct 2015 20:32:19 +0000 (13:32 -0700)]
thp: use is_zero_pfn() only after pte_present() check
Use is_zero_pfn() on pteval only after pte_present() check on pteval
(It might be better idea to introduce is_zero_pte() which checks
pte_present() first).
Otherwise when working on a swap or migration entry and if pte_pfn's
result is equal to zero_pfn by chance, we lose user's data in
__collapse_huge_page_copy(). So if you're unlucky, the application
segfaults and finally you could see below message on exit:
BUG: Bad rss-counter state mm:
ffff88007f099300 idx:2 val:3
Fixes:
ca0984caa823 ("mm: incorporate zero pages into transparent huge pages")
Signed-off-by: Minchan Kim <minchan@kernel.org>
Reviewed-by: Andrea Arcangeli <aarcange@redhat.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Mel Gorman <mgorman@suse.de>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Hugh Dickins <hughd@google.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: <stable@vger.kernel.org> [4.1+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Javier Martinez Canillas [Thu, 22 Oct 2015 20:32:16 +0000 (13:32 -0700)]
mailmap: update Javier Martinez Canillas' email
The get_maintainer script still reports my old Collabora email based on
old commits but that address no longer exist so update mailmap to report
my current email and avoid people sending to the old address.
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Sergey Senozhatsky [Thu, 22 Oct 2015 20:32:13 +0000 (13:32 -0700)]
MAINTAINERS: add Sergey as zsmalloc reviewer
Nominate myself as a zsmalloc reviewer.
Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Rohit Vaswani [Thu, 22 Oct 2015 20:32:11 +0000 (13:32 -0700)]
mm: cma: fix incorrect type conversion for size during dma allocation
This was found during userspace fuzzing test when a large size dma cma
allocation is made by driver(like ion) through userspace.
show_stack+0x10/0x1c
dump_stack+0x74/0xc8
kasan_report_error+0x2b0/0x408
kasan_report+0x34/0x40
__asan_storeN+0x15c/0x168
memset+0x20/0x44
__dma_alloc_coherent+0x114/0x18c
Signed-off-by: Rohit Vaswani <rvaswani@codeaurora.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Oleg Nesterov [Thu, 22 Oct 2015 20:32:08 +0000 (13:32 -0700)]
kmod: don't run async usermode helper as a child of kworker thread
call_usermodehelper_exec_sync() does fork() + wait() with "unignored"
SIGCHLD. What we have missed is that this worker thread can have other
children previously forked by call_usermodehelper_exec_work() without
UMH_WAIT_PROC. If such a child exits in between it becomes a zombie
because auto-reaping only works if SIGCHLD is ignored, and nobody can
reap it (unless/until this worker thread exits too).
Change the !UMH_WAIT_PROC case to use CLONE_PARENT.
Note: this is only first step. All PF_KTHREAD tasks, even created by
kernel_thread() should have ->parent == kthreadd by default.
Fixes:
bb304a5c6fc63d8506c ("kmod: handle UMH_WAIT_PROC from system unbound workqueue")
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Takashi Iwai [Fri, 23 Oct 2015 04:56:56 +0000 (06:56 +0200)]
Merge tag 'asoc-fix-v4.3-rc6' of git://git./linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v4.3
A bunch of driver fixes plus one core fix which fixes problems with
misreporting values from _SX controls following a recent refactoring.
This had gone unnoticed as such controls are quite rare.
Mark Brown [Thu, 22 Oct 2015 23:44:14 +0000 (08:44 +0900)]
Merge remote-tracking branches 'asoc/fix/rt298', 'asoc/fix/sx', 'asoc/fix/wm8904' and 'asoc/fix/wm8962' into asoc-linus
Mark Brown [Thu, 22 Oct 2015 23:44:13 +0000 (08:44 +0900)]
Merge remote-tracking branch 'asoc/fix/rt5645' into asoc-linus
Antti Palosaari [Sat, 3 Oct 2015 21:35:14 +0000 (18:35 -0300)]
[media] m88ds3103: use own reg update_bits() implementation
Device stopped to tuning some channels after regmap conversion.
Reason is that regmap_update_bits() works a bit differently for
partially volatile registers than old homemade routine. Return
back to old routine in order to fix issue.
Fixes:
478932b16052f5ded74685d096ae920cd17d6424
Cc: <stable@kernel.org> # 4.2+
Reported-by: Mark Clarkstone <hello@markclarkstone.co.uk>
Tested-by: Mark Clarkstone <hello@markclarkstone.co.uk>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Antti Palosaari [Tue, 6 Oct 2015 03:22:23 +0000 (00:22 -0300)]
[media] rtl28xxu: fix control message flaws
Add lock to prevent concurrent access for control message as control
message function uses shared buffer. Without the lock there may be
remote control polling which messes the buffer causing IO errors.
Increase buffer size and add check for maximum supported message
length.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=103391
Fixes:
c56222a6b25c ("[media] rtl28xxu: move usb buffers to state")
Cc: <stable@vger.kernel.org> # 4.0+
Signed-off-by: Antti Palosaari <crope@iki.fi>
Jacek Anaszewski [Fri, 2 Oct 2015 09:19:15 +0000 (06:19 -0300)]
[media] v4l2-flash-led-class: Add missing VIDEO_V4L2 Kconfig dependency
Fixes the following randconfig problem:
drivers/built-in.o: In function `v4l2_flash_release':
(.text+0x12204f): undefined reference to `v4l2_async_unregister_subdev'
drivers/built-in.o: In function `v4l2_flash_release':
(.text+0x122057): undefined reference to `v4l2_ctrl_handler_free'
drivers/built-in.o: In function `v4l2_flash_close':
v4l2-flash-led-class.c:(.text+0x12208f): undefined reference to `v4l2_fh_is_singular'
v4l2-flash-led-class.c:(.text+0x1220c8): undefined reference to `__v4l2_ctrl_s_ctrl'
drivers/built-in.o: In function `v4l2_flash_open':
v4l2-flash-led-class.c:(.text+0x12227f): undefined reference to `v4l2_fh_is_singular'
drivers/built-in.o: In function `v4l2_flash_init_controls':
v4l2-flash-led-class.c:(.text+0x12274e): undefined reference to `v4l2_ctrl_handler_init_class'
v4l2-flash-led-class.c:(.text+0x122797): undefined reference to `v4l2_ctrl_new_std_menu'
v4l2-flash-led-class.c:(.text+0x1227e0): undefined reference to `v4l2_ctrl_new_std'
v4l2-flash-led-class.c:(.text+0x122826): undefined reference to `v4l2_ctrl_handler_setup'
v4l2-flash-led-class.c:(.text+0x122839): undefined reference to `v4l2_ctrl_handler_free'
drivers/built-in.o: In function `v4l2_flash_init':
(.text+0x1228e2): undefined reference to `v4l2_subdev_init'
drivers/built-in.o: In function `v4l2_flash_init':
(.text+0x12293b): undefined reference to `v4l2_async_register_subdev'
drivers/built-in.o: In function `v4l2_flash_init':
(.text+0x122949): undefined reference to `v4l2_ctrl_handler_free'
drivers/built-in.o:(.rodata+0x20ef8): undefined reference to `v4l2_subdev_queryctrl'
drivers/built-in.o:(.rodata+0x20f10): undefined reference to `v4l2_subdev_querymenu'
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Cc: Sakari Ailus <sakari.ailus@iki.fi>
Cc: Hans Verkuil <hans.verkuil@cisco.com>