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We now handle the open drain mode internally in the I2C GPIO
driver, but we will get warnings from the gpiolib that we
override the default mode of the line so it becomes open
drain.
We can fix all in-kernel users by simply passing the right
flag along in the descriptor table, and we already touched
all of these files in the series so let's just tidy it up.
Cc: Steven Miao <realmz6@gmail.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Acked-by: Olof Johansson <olof@lixom.net>
Acked-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Acked-by: Wu, Aaron <Aaron.Wu@analog.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The I2C GPIO bitbang driver currently emulates open drain
behaviour by implementing what the gpiolib already does:
not actively driving the line high, instead setting it to
input.
This makes no sense. Use the new facility in gpiolib to
request the lines enforced into open drain mode, and let
the open drain emulation already present in the gpiolib
kick in and handle this.
As a bonus: if the GPIO driver in the back-end actually
supports open drain in hardware using the .set_config()
callback, it will be utilized. That's correct: we never
used that hardware feature before, instead relying on
emulating open drain even if the GPIO controller could
actually handle this for us.
Users will sometimes get messages like this:
gpio-485 (?): enforced open drain please flag it properly
in DT/ACPI DSDT/board file
gpio-486 (?): enforced open drain please flag it properly
in DT/ACPI DSDT/board file
i2c-gpio gpio-i2c: using lines 485 (SDA) and 486 (SCL)
Which is completely proper: since the line is used as
open drain, it should actually be flagged properly with
e.g.
gpios = <&gpio0 5 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>,
<&gpio0 6 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
Or similar facilities in board file descriptor tables
or ACPI DSDT.
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Some busses, like I2C, strictly need to have the line handled
as open drain, i.e. not actively driven high. For this reason
the i2c-gpio.c bit-banged I2C driver is reimplementing open
drain handling outside of gpiolib.
This is not very optimal. Instead make it possible for a
consumer to explcitly express that the line must be handled
as open drain instead of allowing local hacks papering over
this issue.
The descriptor tables, whether DT, ACPI or board files, should
of course have flagged these lines as open drain. E.g.:
enum gpio_lookup_flags GPIO_OPEN_DRAIN for a board file, or
gpios = <&foo 42 GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN>; in a
device tree using <dt-bindings/gpio/gpio.h>
But more often than not, these descriptors are wrong. So
we need to make it possible for consumers to enforce this
open drain behaviour.
We now have two new enumerated GPIO descriptor config flags:
GPIOD_OUT_LOW_OPEN_DRAIN and GPIOD_OUT_HIGH_OPEN_DRAIN
that will set up the lined enforced as open drain as output
low or high, using open drain (if the driver supports it)
or using open drain emulation (setting the line as input
to drive it high) from the gpiolib core.
Cc: linux-gpio@vger.kernel.org
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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This converts the GPIO-based I2C-driver to using GPIO
descriptors instead of the old global numberspace-based
GPIO interface. We:
- Convert the driver to unconditionally grab two GPIOs
from the device by index 0 (SDA) and 1 (SCL) which
will work fine with device tree and descriptor tables.
The existing device trees will continue to work just
like before, but without any roundtrip through the
global numberspace.
- Brutally convert all boardfiles still passing global
GPIOs by registering descriptor tables associated with
the devices instead so this driver does not need to keep
supporting passing any GPIO numbers as platform data.
There is no stepwise approach as elegant as this, I
strongly prefer this big hammer over any antsteps for this
conversion. This way the old GPIO numbers go away and
NEVER COME BACK.
Special conversion for the different boards utilizing
I2C-GPIO:
- EP93xx (arch/arm/mach-ep93xx): pretty straight forward as
all boards were using the same two GPIO lines, just define
these two in a lookup table for "i2c-gpio" and register
these along with the device. None of them define any
other platform data so just pass NULL as platform data.
This platform selects GPIOLIB so all should be smooth.
The pins appear on a gpiochip for bank "G" as pins 1 (SDA)
and 0 (SCL).
- IXP4 (arch/arm/mach-ixp4): descriptor tables have to
be registered for each board separately. They all use
"IXP4XX_GPIO_CHIP" so it is pretty straight forward.
Most board define no other platform data than SCL/SDA
so they can drop the #include of <linux/i2c-gpio.h> and
assign NULL to platform data.
The "goramo_mlr" (Goramo Multilink Router) board is a bit
worrisome: it implements its own I2C bit-banging in the
board file, and optionally registers an I2C serial port,
but claims the same GPIO lines for itself in the board file.
This is not going to work: there will be competition for the
GPIO lines, so delete the optional extra I2C bus instead, no
I2C devices are registered on it anyway, there are just hints
that it may contain an EEPROM that may be accessed from
userspace. This needs to be fixed up properly by the serial
clock using I2C emulation so drop a note in the code.
- KS8695 board acs5k (arch/arm/mach-ks8695/board-acs5.c)
has some platform data in addition to the pins so it needs to
be kept around sans GPIO lines. Its GPIO chip is named
"KS8695" and the arch selects GPIOLIB.
- PXA boards (arch/arm/mach-pxa/*) use some of the platform
data so it needs to be preserved here. The viper board even
registers two GPIO I2Cs. The gpiochip is named "gpio-pxa" and
the arch selects GPIOLIB.
- SA1100 Simpad (arch/arm/mach-sa1100/simpad.c) defines a GPIO
I2C bus, and the arch selects GPIOLIB.
- Blackfin boards (arch/blackfin/bf533 etc) for these I assume
their I2C GPIOs refer to the local gpiochip defined in
arch/blackfin/kernel/bfin_gpio.c names "BFIN-GPIO".
The arch selects GPIOLIB. The boards get spiked with
IF_ENABLED(I2C_GPIO) but that is a side effect of it
being like that already (I would just have Kconfig select
I2C_GPIO and get rid of them all.) I also delete any
platform data set to 0 as it will get that value anyway
from static declartions of platform data.
- The MIPS selects GPIOLIB and the Alchemy machine is using
two local GPIO chips, one of them has a GPIO I2C. We need
to adjust the local offset from the global number space here.
The ATH79 has a proper GPIO driver in drivers/gpio/gpio-ath79.c
and AFAICT the chip is named "ath79-gpio" and the PB44
PCF857x expander spawns from this on GPIO 1 and 0. The latter
board only use the platform data to specify pins so it can be
cut altogether after this.
- The MFD Silicon Motion SM501 is a special case. It dynamically
spawns an I2C bus off the MFD using sm501_create_subdev().
We use an approach to dynamically create a machine descriptor
table and attach this to the "SM501-LOW" or "SM501-HIGH"
gpiochip. We use chip-local offsets to grab the right lines.
We can get rid of two local static inline helpers as part
of this refactoring.
Cc: Steven Miao <realmz6@gmail.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: Ben Dooks <ben.dooks@codethink.co.uk>
Cc: Heiko Schocher <hs@denx.de>
Acked-by: Wu, Aaron <Aaron.Wu@analog.com>
Acked-by: Olof Johansson <olof@lixom.net>
Acked-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Pull UBI updates from Richard Weinberger:
"Minor improvements"
* tag 'upstream-4.14-rc1' of git://git.infradead.org/linux-ubifs:
UBI: Fix two typos in comments
ubi: fastmap: fix spelling mistake: "invalidiate" -> "invalidate"
ubi: pr_err() strings should end with newlines
ubi: pr_err() strings should end with newlines
ubi: pr_err() strings should end with newlines
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Pull networking fixes from David Miller:
1) Fix hotplug deadlock in hv_netvsc, from Stephen Hemminger.
2) Fix double-free in rmnet driver, from Dan Carpenter.
3) INET connection socket layer can double put request sockets, fix
from Eric Dumazet.
4) Don't match collect metadata-mode tunnels if the device is down,
from Haishuang Yan.
5) Do not perform TSO6/GSO on ipv6 packets with extensions headers in
be2net driver, from Suresh Reddy.
6) Fix scaling error in gen_estimator, from Eric Dumazet.
7) Fix 64-bit statistics deadlock in systemport driver, from Florian
Fainelli.
8) Fix use-after-free in sctp_sock_dump, from Xin Long.
9) Reject invalid BPF_END instructions in verifier, from Edward Cree.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (43 commits)
mlxsw: spectrum_router: Only handle IPv4 and IPv6 events
Documentation: link in networking docs
tcp: fix data delivery rate
bpf/verifier: reject BPF_ALU64|BPF_END
sctp: do not mark sk dumped when inet_sctp_diag_fill returns err
sctp: fix an use-after-free issue in sctp_sock_dump
netvsc: increase default receive buffer size
tcp: update skb->skb_mstamp more carefully
net: ipv4: fix l3slave check for index returned in IP_PKTINFO
net: smsc911x: Quieten netif during suspend
net: systemport: Fix 64-bit stats deadlock
net: vrf: avoid gcc-4.6 warning
qed: remove unnecessary call to memset
tg3: clean up redundant initialization of tnapi
tls: make tls_sw_free_resources static
sctp: potential read out of bounds in sctp_ulpevent_type_enabled()
MAINTAINERS: review Renesas DT bindings as well
net_sched: gen_estimator: fix scaling error in bytes/packets samples
nfp: wait for the NSP resource to appear on boot
nfp: wait for board state before talking to the NSP
...
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull more input updates from Dmitry Torokhov:
"A second round of updates for the input subsystem:
- a new driver for PWM-controlled vibrators
- ucb1400 touchscreen driver had completely busted suspend/resume
handling
- we now handle "home" button found on some devices with Goodix
touchscreens
- assorted other fixups"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: i8042 - add Gigabyte P57 to the keyboard reset table
Input: xpad - validate USB endpoint type during probe
Input: ucb1400_ts - fix suspend and resume handling
Input: edt-ft5x06 - fix access to non-existing register
Input: elantech - make arrays debounce_packet static, reduces object code size
Input: surface3_spi - make const array header static, reduces object code size
Input: goodix - add support for capacitive home button
Input: add a driver for PWM controllable vibrators
Input: adi - make array seq static, reduces object code size
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Commit 5620a0d1aac ("firmware: delete in-kernel firmware") removed the
entire firmware directory. Unfortunately it thereby also removed the
support for built-in firmware.
This restores the ability to build firmware directly into the kernel by
pruning the original Makefile to the necessary minimum. The default for
EXTRA_FIRMWARE_DIR is now the standard directory /lib/firmware/.
Fixes: 5620a0d1aac ("firmware: delete in-kernel firmware")
Signed-off-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Acked-by: Greg K-H <gregkh@linuxfoundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The driver doesn't support events from address families other than IPv4
and IPv6, so ignore them. Otherwise, we risk queueing a work item before
it's initialized.
This can happen in case a VRF is configured when MROUTE_MULTIPLE_TABLES
is enabled, as the VRF driver will try to add an l3mdev rule for the
IPMR family.
Fixes: 65e65ec137f4 ("mlxsw: spectrum_router: Don't ignore IPv6 notifications")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reported-by: Andreas Rammhold <andreas@rammhold.de>
Reported-by: Florian Klink <flokli@flokli.de>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS updates from Ralf Baechle:
"This is the main pull request for 4.14 for MIPS; below a summary of
the non-merge commits:
CM:
- Rename mips_cm_base to mips_gcr_base
- Specify register size when generating accessors
- Use BIT/GENMASK for register fields, order & drop shifts
- Add cluster & block args to mips_cm_lock_other()
CPC:
- Use common CPS accessor generation macros
- Use BIT/GENMASK for register fields, order & drop shifts
- Introduce register modify (set/clear/change) accessors
- Use change_*, set_* & clear_* where appropriate
- Add CM/CPC 3.5 register definitions
- Use GlobalNumber macros rather than magic numbers
- Have asm/mips-cps.h include CM & CPC headers
- Cluster support for topology functions
- Detect CPUs in secondary clusters
CPS:
- Read GIC_VL_IDENT directly, not via irqchip driver
DMA:
- Consolidate coherent and non-coherent dma_alloc code
- Don't use dma_cache_sync to implement fd_cacheflush
FPU emulation / FP assist code:
- Another series of 14 commits fixing corner cases such as NaN
propgagation and other special input values.
- Zero bits 32-63 of the result for a CLASS.D instruction.
- Enhanced statics via debugfs
- Do not use bools for arithmetic. GCC 7.1 moans about this.
- Correct user fault_addr type
Generic MIPS:
- Enhancement of stack backtraces
- Cleanup from non-existing options
- Handle non word sized instructions when examining frame
- Fix detection and decoding of ADDIUSP instruction
- Fix decoding of SWSP16 instruction
- Refactor handling of stack pointer in get_frame_info
- Remove unreachable code from force_fcr31_sig()
- Convert to using %pOF instead of full_name
- Remove the R6000 support.
- Move FP code from *_switch.S to *_fpu.S
- Remove unused ST_OFF from r2300_switch.S
- Allow platform to specify multiple its.S files
- Add #includes to various files to ensure code builds reliable and
without warning..
- Remove __invalidate_kernel_vmap_range
- Remove plat_timer_setup
- Declare various variables & functions static
- Abstract CPU core & VP(E) ID access through accessor functions
- Store core & VP IDs in GlobalNumber-style variable
- Unify checks for sibling CPUs
- Add CPU cluster number accessors
- Prevent direct use of generic_defconfig
- Make CONFIG_MIPS_MT_SMP default y
- Add __ioread64_copy
- Remove unnecessary inclusions of linux/irqchip/mips-gic.h
GIC:
- Introduce asm/mips-gic.h with accessor functions
- Use new GIC accessor functions in mips-gic-timer
- Remove counter access functions from irq-mips-gic.c
- Remove gic_read_local_vp_id() from irq-mips-gic.c
- Simplify shared interrupt pending/mask reads in irq-mips-gic.c
- Simplify gic_local_irq_domain_map() in irq-mips-gic.c
- Drop gic_(re)set_mask() functions in irq-mips-gic.c
- Remove gic_set_polarity(), gic_set_trigger(), gic_set_dual_edge(),
gic_map_to_pin() and gic_map_to_vpe() from irq-mips-gic.c.
- Convert remaining shared reg access, local int mask access and
remaining local reg access to new accessors
- Move GIC_LOCAL_INT_* to asm/mips-gic.h
- Remove GIC_CPU_INT* macros from irq-mips-gic.c
- Move various definitions to the driver
- Remove gic_get_usm_range()
- Remove __gic_irq_dispatch() forward declaration
- Remove gic_init()
- Use mips_gic_present() in place of gic_present and remove
gic_present
- Move gic_get_c0_*_int() to asm/mips-gic.h
- Remove linux/irqchip/mips-gic.h
- Inline __gic_init()
- Inline gic_basic_init()
- Make pcpu_masks a per-cpu variable
- Use pcpu_masks to avoid reading GIC_SH_MASK*
- Clean up mti, reserved-cpu-vectors handling
- Use cpumask_first_and() in gic_set_affinity()
- Let the core set struct irq_common_data affinity
microMIPS:
- Fix microMIPS stack unwinding on big endian systems
MIPS-GIC:
- SYNC after enabling GIC region
NUMA:
- Remove the unused parent_node() macro
R6:
- Constify r2_decoder_tables
- Add accessor & bit definitions for GlobalNumber
SMP:
- Constify smp ops
- Allow boot_secondary SMP op to return errors
VDSO:
- Drop gic_get_usm_range() usage
- Avoid use of linux/irqchip/mips-gic.h
Platform changes:
Alchemy:
- Add devboard machine type to cpuinfo
- update cpu feature overrides
- Threaded carddetect irqs for devboards
AR7:
- allow NULL clock for clk_get_rate
BCM63xx:
- Fix ENETDMA_6345_MAXBURST_REG offset
- Allow NULL clock for clk_get_rate
CI20:
- Enable GPIO and RTC drivers in defconfig
- Add ethernet and fixed-regulator nodes to DTS
Generic platform:
- Move Boston and NI 169445 FIT image source to their own files
- Include asm/bootinfo.h for plat_fdt_relocated()
- Include asm/time.h for get_c0_*_int()
- Include asm/bootinfo.h for plat_fdt_relocated()
- Include asm/time.h for get_c0_*_int()
- Allow filtering enabled boards by requirements
- Don't explicitly disable CONFIG_USB_SUPPORT
- Bump default NR_CPUS to 16
JZ4700:
- Probe the jz4740-rtc driver from devicetree
Lantiq:
- Drop check of boot select from the spi-falcon driver.
- Drop check of boot select from the lantiq-flash MTD driver.
- Access boot cause register in the watchdog driver through regmap
- Add device tree binding documentation for the watchdog driver
- Add docs for the RCU DT bindings.
- Convert the fpi bus driver to a platform_driver
- Remove ltq_reset_cause() and ltq_boot_select(
- Switch to a proper reset driver
- Switch to a new drivers/soc GPHY driver
- Add an USB PHY driver for the Lantiq SoCs using the RCU module
- Use of_platform_default_populate instead of __dt_register_buses
- Enable MFD_SYSCON to be able to use it for the RCU MFD
- Replace ltq_boot_select() with dummy implementation.
Loongson 2F:
- Allow NULL clock for clk_get_rate
Malta:
- Use new GIC accessor functions
NI 169445:
- Add support for NI 169445 board.
- Only include in 32r2el kernels
Octeon:
- Add support for watchdog of 78XX SOCs.
- Add support for watchdog of CN68XX SOCs.
- Expose support for mips32r1, mips32r2 and mips64r1
- Enable more drivers in config file
- Add support for accessing the boot vector.
- Remove old boot vector code from watchdog driver
- Define watchdog registers for 70xx, 73xx, 78xx, F75xx.
- Make CSR functions node aware.
- Allow access to CIU3 IRQ domains.
- Misc cleanups in the watchdog driver
Omega2+:
- New board, add support and defconfig
Pistachio:
- Enable Root FS on NFS in defconfig
Ralink:
- Add Mediatek MT7628A SoC
- Allow NULL clock for clk_get_rate
- Explicitly request exclusive reset control in the pci-mt7620 PCI driver.
SEAD3:
- Only include in 32 bit kernels by default
VoCore:
- Add VoCore as a vendor t0 dt-bindings
- Add defconfig file"
* '4.14-features' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (167 commits)
MIPS: Refactor handling of stack pointer in get_frame_info
MIPS: Stacktrace: Fix microMIPS stack unwinding on big endian systems
MIPS: microMIPS: Fix decoding of swsp16 instruction
MIPS: microMIPS: Fix decoding of addiusp instruction
MIPS: microMIPS: Fix detection of addiusp instruction
MIPS: Handle non word sized instructions when examining frame
MIPS: ralink: allow NULL clock for clk_get_rate
MIPS: Loongson 2F: allow NULL clock for clk_get_rate
MIPS: BCM63XX: allow NULL clock for clk_get_rate
MIPS: AR7: allow NULL clock for clk_get_rate
MIPS: BCM63XX: fix ENETDMA_6345_MAXBURST_REG offset
mips: Save all registers when saving the frame
MIPS: Add DWARF unwinding to assembly
MIPS: Make SAVE_SOME more standard
MIPS: Fix issues in backtraces
MIPS: jz4780: DTS: Probe the jz4740-rtc driver from devicetree
MIPS: Ci20: Enable RTC driver
watchdog: octeon-wdt: Add support for 78XX SOCs.
watchdog: octeon-wdt: Add support for cn68XX SOCs.
watchdog: octeon-wdt: File cleaning.
...
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git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI fix from Bjorn Helgaas:
"Revert an attempt to fix a race while enabling upstream bridges
because it broke iwlwifi firmware loading"
* tag 'pci-v4.14-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
Revert "PCI: Avoid race while enabling upstream bridges"
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git://people.freedesktop.org/~airlied/linux
Pull drm AMD fixes from Dave Airlie:
"Just had a single AMD fixes pull from Alex for rc1"
* tag 'drm-fixes-for-v4.14-rc1' of git://people.freedesktop.org/~airlied/linux:
drm/amdgpu: revert "fix deadlock of reservation between cs and gpu reset v2"
drm/amdgpu: remove duplicate return statement
drm/amdgpu: check memory allocation failure
drm/amd/amdgpu: fix BANK_SELECT on Vega10 (v2)
drm/amdgpu: inline amdgpu_ttm_do_bind again
drm/amdgpu: fix amdgpu_ttm_bind
drm/amdgpu: remove the GART copy hack
drm/ttm:fix wrong decoding of bo_count
drm/ttm: fix missing inc bo_count
drm/amdgpu: set sched_hw_submission higher for KIQ (v3)
drm/amdgpu: move default gart size setting into gmc modules
drm/amdgpu: refine default gart size
drm/amd/powerplay: ACG frequency added in PPTable
drm/amdgpu: discard commands of killed processes
drm/amdgpu: fix and cleanup shadow handling
drm/amdgpu: add automatic per asic settings for gart_size
drm/amdgpu/gfx8: fix spelling typo in mqd allocation
drm/amd/powerplay: unhalt mec after loading
drm/amdgpu/virtual_dce: Virtual display doesn't support disable vblank immediately
drm/amdgpu: Fix huge page updates with CPU
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull more i2c updates from Wolfram Sang:
"I2C has two more new drivers: Altera FPGA and STM32F7"
* 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: i2c-stm32f7: add driver
i2c: i2c-stm32f4: use generic definition of speed enum
dt-bindings: i2c-stm32: Document the STM32F7 I2C bindings
i2c: altera: Add Altera I2C Controller driver
dt-bindings: i2c: Add Altera I2C Controller
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The default receive buffer size was reduced by recent change
to a value which was appropriate for 10G and Windows Server 2016.
But the value is too small for full performance with 40G on Azure.
Increase the default back to maximum supported by host.
Fixes: 8b5327975ae1 ("netvsc: allow controlling send/recv buffer size")
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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If the network interface is kept running during suspend, the net core
may call net_device_ops.ndo_start_xmit() while the Ethernet device is
still suspended, which may lead to a system crash.
E.g. on sh73a0/kzm9g and r8a73a4/ape6evm, the external Ethernet chip is
driven by a PM controlled clock. If the Ethernet registers are accessed
while the clock is not running, the system will crash with an imprecise
external abort.
As this is a race condition with a small time window, it is not so easy
to trigger at will. Using pm_test may increase your chances:
# echo 0 > /sys/module/printk/parameters/console_suspend
# echo platform > /sys/power/pm_test
# echo mem > /sys/power/state
To fix this, make sure the network interface is quietened during
suspend.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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We can enter a deadlock situation because there is no sufficient protection
when ndo_get_stats64() runs in process context to guard against RX or TX NAPI
contexts running in softirq, this can lead to the following lockdep splat and
actual deadlock was experienced as well with an iperf session in the background
and a while loop doing ifconfig + ethtool.
[ 5.780350] ================================
[ 5.784679] WARNING: inconsistent lock state
[ 5.789011] 4.13.0-rc7-02179-g32fae27c725d #70 Not tainted
[ 5.794561] --------------------------------
[ 5.798890] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
[ 5.804971] swapper/0/0 [HC0[0]:SC1[1]:HE0:SE0] takes:
[ 5.810175] (&syncp->seq#2){+.?...}, at: [<c0768a28>] bcm_sysport_tx_reclaim+0x30/0x54
[ 5.818327] {SOFTIRQ-ON-W} state was registered at:
[ 5.823278] bcm_sysport_get_stats64+0x17c/0x258
[ 5.828053] dev_get_stats+0x38/0xac
[ 5.831776] rtnl_fill_stats+0x30/0x118
[ 5.835761] rtnl_fill_ifinfo+0x538/0xe24
[ 5.839921] rtmsg_ifinfo_build_skb+0x6c/0xd8
[ 5.844430] rtmsg_ifinfo_event.part.5+0x14/0x44
[ 5.849201] rtmsg_ifinfo+0x20/0x28
[ 5.852837] register_netdevice+0x628/0x6b8
[ 5.857171] register_netdev+0x14/0x24
[ 5.861051] bcm_sysport_probe+0x30c/0x438
[ 5.865280] platform_drv_probe+0x50/0xb0
[ 5.869418] driver_probe_device+0x2e8/0x450
[ 5.873817] __driver_attach+0x104/0x120
[ 5.877871] bus_for_each_dev+0x7c/0xc0
[ 5.881834] bus_add_driver+0x1b0/0x270
[ 5.885797] driver_register+0x78/0xf4
[ 5.889675] do_one_initcall+0x54/0x190
[ 5.893646] kernel_init_freeable+0x144/0x1d0
[ 5.898135] kernel_init+0x8/0x110
[ 5.901665] ret_from_fork+0x14/0x2c
[ 5.905363] irq event stamp: 24263
[ 5.908804] hardirqs last enabled at (24262): [<c08eecf0>] net_rx_action+0xc4/0x4e4
[ 5.916624] hardirqs last disabled at (24263): [<c0a7da00>] _raw_spin_lock_irqsave+0x1c/0x98
[ 5.925143] softirqs last enabled at (24258): [<c022a7fc>] irq_enter+0x84/0x98
[ 5.932524] softirqs last disabled at (24259): [<c022a918>] irq_exit+0x108/0x16c
[ 5.939985]
[ 5.939985] other info that might help us debug this:
[ 5.946576] Possible unsafe locking scenario:
[ 5.946576]
[ 5.952556] CPU0
[ 5.955031] ----
[ 5.957506] lock(&syncp->seq#2);
[ 5.960955] <Interrupt>
[ 5.963604] lock(&syncp->seq#2);
[ 5.967227]
[ 5.967227] *** DEADLOCK ***
[ 5.967227]
[ 5.973222] 1 lock held by swapper/0/0:
[ 5.977092] #0: (&(&ring->lock)->rlock){..-...}, at: [<c0768a18>] bcm_sysport_tx_reclaim+0x20/0x54
So just remove the u64_stats_update_begin()/end() pair in ndo_get_stats64()
since it does not appear to be useful for anything. No inconsistency was
observed with either ifconfig or ethtool, global TX counts equal the sum of
per-queue TX counts on a 32-bit architecture.
Fixes: 10377ba7673d ("net: systemport: Support 64bit statistics")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
When building an allmodconfig kernel with gcc-4.6, we get a rather
odd warning:
drivers/net/vrf.c: In function ‘vrf_ip6_input_dst’:
drivers/net/vrf.c:964:3: error: initialized field with side-effects overwritten [-Werror]
drivers/net/vrf.c:964:3: error: (near initialization for ‘fl6’) [-Werror]
I have no idea what this warning is even trying to say, but it does
seem like a false positive. Reordering the initialization in to match
the structure definition gets rid of the warning, and might also avoid
whatever gcc thinks is wrong here.
Fixes: 9ff74384600a ("net: vrf: Handle ipv6 multicast and link-local addresses")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
call to memset to assign 0 value immediately after allocating
memory with kzalloc is unnecesaary as kzalloc allocates the memory
filled with 0 value.
Semantic patch used to resolve this issue:
@@
expression e,e2; constant c;
statement S;
@@
e = kzalloc(e2, c);
if(e == NULL) S
- memset(e, 0, e2);
Signed-off-by: Himanshu Jha <himanshujha199640@gmail.com>
Signed-off-by: Himanshu Jha <himanshujha199640@gmail.com>
Acked-by: Sudarsana Kalluru <sudarsana.kalluru@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Prepare second round of input updates for 4.14 merge window.
|
|
Similar to other Gigabyte laptops, the touchpad on P57 requires a
keyboard reset to detect Elantech touchpad correctly.
BugLink: https://bugs.launchpad.net/bugs/1594214
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
|
|
This reverts commit 40f11adc7cd9281227f0a6a627d966dd0a5f0cd9.
Jens found that iwlwifi firmware loading failed on a Lenovo X1 Carbon,
gen4:
iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8000C-34.ucode failed with error -2
iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8000C-33.ucode failed with error -2
iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8000C-32.ucode failed with error -2
iwlwifi 0000:04:00.0: loaded firmware version 31.532993.0 op_mode iwlmvm
iwlwifi 0000:04:00.0: Detected Intel(R) Dual Band Wireless AC 8260, REV=0x208
...
iwlwifi 0000:04:00.0: Failed to load firmware chunk!
iwlwifi 0000:04:00.0: Could not load the [0] uCode section
iwlwifi 0000:04:00.0: Failed to start INIT ucode: -110
iwlwifi 0000:04:00.0: Failed to run INIT ucode: -110
He bisected it to 40f11adc7cd9 ("PCI: Avoid race while enabling upstream
bridges"). Revert that commit to fix the regression.
Link: http://lkml.kernel.org/r/4bcbcbc1-7c79-09f0-5071-bc2f53bf6574@kernel.dk
Fixes: 40f11adc7cd9 ("PCI: Avoid race while enabling upstream bridges")
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: Srinath Mannam <srinath.mannam@broadcom.com>
CC: Jens Axboe <axboe@kernel.dk>
CC: Luca Coelho <luca@coelho.fi>
CC: Johannes Berg <johannes@sipsolutions.net>
CC: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull mount flag updates from Al Viro:
"Another chunk of fmount preparations from dhowells; only trivial
conflicts for that part. It separates MS_... bits (very grotty
mount(2) ABI) from the struct super_block ->s_flags (kernel-internal,
only a small subset of MS_... stuff).
This does *not* convert the filesystems to new constants; only the
infrastructure is done here. The next step in that series is where the
conflicts would be; that's the conversion of filesystems. It's purely
mechanical and it's better done after the merge, so if you could run
something like
list=$(for i in MS_RDONLY MS_NOSUID MS_NODEV MS_NOEXEC MS_SYNCHRONOUS MS_MANDLOCK MS_DIRSYNC MS_NOATIME MS_NODIRATIME MS_SILENT MS_POSIXACL MS_KERNMOUNT MS_I_VERSION MS_LAZYTIME; do git grep -l $i fs drivers/staging/lustre drivers/mtd ipc mm include/linux; done|sort|uniq|grep -v '^fs/namespace.c$')
sed -i -e 's/\<MS_RDONLY\>/SB_RDONLY/g' \
-e 's/\<MS_NOSUID\>/SB_NOSUID/g' \
-e 's/\<MS_NODEV\>/SB_NODEV/g' \
-e 's/\<MS_NOEXEC\>/SB_NOEXEC/g' \
-e 's/\<MS_SYNCHRONOUS\>/SB_SYNCHRONOUS/g' \
-e 's/\<MS_MANDLOCK\>/SB_MANDLOCK/g' \
-e 's/\<MS_DIRSYNC\>/SB_DIRSYNC/g' \
-e 's/\<MS_NOATIME\>/SB_NOATIME/g' \
-e 's/\<MS_NODIRATIME\>/SB_NODIRATIME/g' \
-e 's/\<MS_SILENT\>/SB_SILENT/g' \
-e 's/\<MS_POSIXACL\>/SB_POSIXACL/g' \
-e 's/\<MS_KERNMOUNT\>/SB_KERNMOUNT/g' \
-e 's/\<MS_I_VERSION\>/SB_I_VERSION/g' \
-e 's/\<MS_LAZYTIME\>/SB_LAZYTIME/g' \
$list
and commit it with something along the lines of 'convert filesystems
away from use of MS_... constants' as commit message, it would save a
quite a bit of headache next cycle"
* 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
VFS: Differentiate mount flags (MS_*) from internal superblock flags
VFS: Convert sb->s_flags & MS_RDONLY to sb_rdonly(sb)
vfs: Add sb_rdonly(sb) to query the MS_RDONLY flag on s_flags
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull more set_fs removal from Al Viro:
"Christoph's 'use kernel_read and friends rather than open-coding
set_fs()' series"
* 'work.set_fs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
fs: unexport vfs_readv and vfs_writev
fs: unexport vfs_read and vfs_write
fs: unexport __vfs_read/__vfs_write
lustre: switch to kernel_write
gadget/f_mass_storage: stop messing with the address limit
mconsole: switch to kernel_read
btrfs: switch write_buf to kernel_write
net/9p: switch p9_fd_read to kernel_write
mm/nommu: switch do_mmap_private to kernel_read
serial2002: switch serial2002_tty_write to kernel_{read/write}
fs: make the buf argument to __kernel_write a void pointer
fs: fix kernel_write prototype
fs: fix kernel_read prototype
fs: move kernel_read to fs/read_write.c
fs: move kernel_write to fs/read_write.c
autofs4: switch autofs4_write to __kernel_write
ashmem: switch to ->read_iter
|
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git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper updates from Mike Snitzer:
- Some request-based DM core and DM multipath fixes and cleanups
- Constify a few variables in DM core and DM integrity
- Add bufio optimization and checksum failure accounting to DM
integrity
- Fix DM integrity to avoid checking integrity of failed reads
- Fix DM integrity to use init_completion
- A couple DM log-writes target fixes
- Simplify DAX flushing by eliminating the unnecessary flush
abstraction that was stood up for DM's use.
* tag 'for-4.14/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dax: remove the pmem_dax_ops->flush abstraction
dm integrity: use init_completion instead of COMPLETION_INITIALIZER_ONSTACK
dm integrity: make blk_integrity_profile structure const
dm integrity: do not check integrity for failed read operations
dm log writes: fix >512b sectorsize support
dm log writes: don't use all the cpu while waiting to log blocks
dm ioctl: constify ioctl lookup table
dm: constify argument arrays
dm integrity: count and display checksum failures
dm integrity: optimize writing dm-bufio buffers that are partially changed
dm rq: do not update rq partially in each ending bio
dm rq: make dm-sq requeuing behavior consistent with dm-mq behavior
dm mpath: complain about unsupported __multipath_map_bio() return values
dm mpath: avoid that building with W=1 causes gcc 7 to complain about fall-through
|
|
Pull fbdev updates from Bartlomiej Zolnierkiewicz:
- make fbcon a built-time depency for fbdev (fbcon was tristate option
before, now it is a bool) - this is a first step in preparations for
making console_lock usage saner (currently it acts like the BKL for
all things fbdev/fbcon) (Daniel Vetter)
- add fbcon=margin:<color> command line option to select the fbcon
margin color (David Lechner)
- add DMI quirk table for x86 systems which need fbcon rotation
(devices like Asus T100HA, GPD Pocket, the GPD win and the I.T.Works
TW891) (Hans de Goede)
- fix 1bpp logo support for unusual width (needed by LEGO MINDSTORMS
EV3) (David Lechner)
- enable Xilinx FB driver for ARM ZynqMP platform (Michal Simek)
- fix use after free in the error path of udlfb driver (Anton Vasilyev)
- fix error return code handling in pxa3xx_gcu driver (Gustavo A. R.
Silva)
- fix bootparams.screeninfo arguments checking in vgacon (Jan H.
Schönherr)
- do not leak uninitialized padding in clk to userspace in the debug
code of atyfb driver (Vladis Dronov)
- fix compiler warnings in fbcon code and matroxfb driver (Arnd
Bergmann)
- convert fbdev susbsytem to using %pOF instead of full_name (Rob
Herring)
- structures constifications (Arvind Yadav, Bhumika Goyal, Gustavo A.
R. Silva, Julia Lawall)
- misc cleanups (Gustavo A. R. Silva, Hyun Kwon, Julia Lawall, Kuninori
Morimoto, Lynn Lei)
* tag 'fbdev-v4.14' of git://github.com/bzolnier/linux: (75 commits)
video/console: Update BIOS dates list for GPD win console rotation DMI quirk
video/console: Add rotated LCD-panel DMI quirk for the VIOS LTH17
video: fbdev: sis: fix duplicated code for different branches
video: fbdev: make fb_var_screeninfo const
video: fbdev: aty: do not leak uninitialized padding in clk to userspace
vgacon: Prevent faulty bootparams.screeninfo from causing harm
video: fbdev: make fb_videomode const
video/console: Add new BIOS date for GPD pocket to dmi quirk table
fbcon: remove restriction on margin color
video: ARM CLCD: constify amba_id
video: fm2fb: constify zorro_device_id
video: fbdev: annotate fb_fix_screeninfo with const and __initconst
omapfb: constify omap_video_timings structures
video: fbdev: udlfb: Fix use after free on dlfb_usb_probe error path
fbdev: i810: make fb_ops const
fbdev: matrox: make fb_ops const
video: fbdev: pxa3xx_gcu: fix error return code in pxa3xx_gcu_probe()
video: fbdev: Enable Xilinx FB for ZynqMP
video: fbdev: Fix multiple style issues in xilinxfb
video: fbdev: udlfb: constify usb_device_id.
...
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Pull watchdog updates from Wim Van Sebroeck:
- add support for the watchdog on Meson8 and Meson8m2
- add support for MediaTek MT7623 and MT7622 SoC
- add support for the r8a77995 wdt
- explicitly request exclusive reset control for asm9260_wdt,
zx2967_wdt, rt2880_wdt and mt7621_wdt
- improvements to asm9260_wdt, aspeed_wdt, renesas_wdt and cadence_wdt
- add support for reading freq via CCF + suspend/resume support for
of_xilinx_wdt
- constify watchdog_ops and various device-id structures
- revert of commit 1fccb73011ea ("iTCO_wdt: all versions count down
twice") (Bug 196509)
* git://www.linux-watchdog.org/linux-watchdog: (40 commits)
watchdog: mei_wdt: constify mei_cl_device_id
watchdog: sp805: constify amba_id
watchdog: ziirave: constify i2c_device_id
watchdog: sc1200: constify pnp_device_id
dt-bindings: watchdog: renesas-wdt: Add support for the r8a77995 wdt
watchdog: renesas_wdt: update copyright dates
watchdog: renesas_wdt: make 'clk' a variable local to probe()
watchdog: renesas_wdt: consistently use RuntimePM for clock management
watchdog: aspeed: Support configuration of external signal properties
dt-bindings: watchdog: aspeed: External reset signal properties
drivers/watchdog: Add optional ASPEED device tree properties
drivers/watchdog: ASPEED reference dev tree properties for config
watchdog: da9063_wdt: Simplify by removing unneeded struct...
watchdog: bcm7038: Check the return value from clk_prepare_enable()
watchdog: qcom: Check for platform_get_resource() failure
watchdog: of_xilinx_wdt: Add suspend/resume support
watchdog: of_xilinx_wdt: Add support for reading freq via CCF
dt-bindings: watchdog: mediatek: add support for MediaTek MT7623 and MT7622 SoC
watchdog: max77620_wdt: constify platform_device_id
watchdog: pcwd_usb: constify usb_device_id
...
|
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git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
Pull dmi update from Jean Delvare:
"Mark all struct dmi_system_id instances const"
* 'dmi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
dmi: Mark all struct dmi_system_id instances const
|
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
"This slew of fixes for pin control was noticed and patched up early,
so to get the annoyance out of the way for -rc1 it would make sense to
send them already.
- Fix a build include in the Uniphier driver to keep pace with
ongoing refactorings.
- Fix a slew of minor semantic and syntactic issues as well as
stricting up Kconfig for the new Spreadtrum driver.
- Fix the GPIO interrupt set-up on the Marvell 37xx Armada as fallout
for dynamically allocating irq descriptors from the core. (Also
tagged for stable.)
- Fix AMD register suspend/resume state spool/unspooling so that
wakeup works as it should. (Also tagged for stable.)"
* tag 'pinctrl-v4.14-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl/amd: save pin registers over suspend/resume
pinctrl: armada-37xx: Fix gpio interrupt setup
pinctrl: sprd: fix off by one bugs
pinctrl: sprd: check for allocation failure
pinctrl: sprd: Restrict PINCTRL_SPRD to ARCH_SPRD or COMPILE_TEST
pinctrl: sprd: fix build errors and dependencies
pinctrl: sprd: make three local functions static
pinctrl: uniphier: include <linux/build_bug.h> instead of <linux/bug.h>
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tnapi is being initialized and then immediately updated and
hence the initialiation is redundant. Clean up the warning
by moving the declaration and initialization to the inside
of the for-loop.
Cleans up clang scan-build warning:
warning: Value stored to 'tnapi' during its initialization is never read
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
This patch adds initial support for the STM32F7 I2C controller.
Signed-off-by: M'boumba Cedric Madianga <cedric.madianga@gmail.com>
Signed-off-by: Pierre-Yves MORDRET <pierre-yves.mordret@st.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
|
|
This patch uses a more generic definition of speed enum for i2c-stm32f4
driver.
Signed-off-by: M'boumba Cedric Madianga <cedric.madianga@gmail.com>
Signed-off-by: Pierre-Yves MORDRET <pierre-yves.mordret@st.com>
Reviewed-by: Ludovic BARRE <ludovic.barre@st.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
|
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... and __initconst if applicable.
Based on similar work for an older kernel in the Grsecurity patch.
[JD: fix toshiba-wmi build]
[JD: add htcpen]
[JD: move __initconst where checkscript wants it]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jean Delvare <jdelvare@suse.de>
|
|
GFP_TEMPORARY was introduced by commit e12ba74d8ff3 ("Group short-lived
and reclaimable kernel allocations") along with __GFP_RECLAIMABLE. It's
primary motivation was to allow users to tell that an allocation is
short lived and so the allocator can try to place such allocations close
together and prevent long term fragmentation. As much as this sounds
like a reasonable semantic it becomes much less clear when to use the
highlevel GFP_TEMPORARY allocation flag. How long is temporary? Can the
context holding that memory sleep? Can it take locks? It seems there is
no good answer for those questions.
The current implementation of GFP_TEMPORARY is basically GFP_KERNEL |
__GFP_RECLAIMABLE which in itself is tricky because basically none of
the existing caller provide a way to reclaim the allocated memory. So
this is rather misleading and hard to evaluate for any benefits.
I have checked some random users and none of them has added the flag
with a specific justification. I suspect most of them just copied from
other existing users and others just thought it might be a good idea to
use without any measuring. This suggests that GFP_TEMPORARY just
motivates for cargo cult usage without any reasoning.
I believe that our gfp flags are quite complex already and especially
those with highlevel semantic should be clearly defined to prevent from
confusion and abuse. Therefore I propose dropping GFP_TEMPORARY and
replace all existing users to simply use GFP_KERNEL. Please note that
SLAB users with shrinkers will still get __GFP_RECLAIMABLE heuristic and
so they will be placed properly for memory fragmentation prevention.
I can see reasons we might want some gfp flag to reflect shorterm
allocations but I propose starting from a clear semantic definition and
only then add users with proper justification.
This was been brought up before LSF this year by Matthew [1] and it
turned out that GFP_TEMPORARY really doesn't have a clear semantic. It
seems to be a heuristic without any measured advantage for most (if not
all) its current users. The follow up discussion has revealed that
opinions on what might be temporary allocation differ a lot between
developers. So rather than trying to tweak existing users into a
semantic which they haven't expected I propose to simply remove the flag
and start from scratch if we really need a semantic for short term
allocations.
[1] http://lkml.kernel.org/r/20170118054945.GD18349@bombadil.infradead.org
[akpm@linux-foundation.org: fix typo]
[akpm@linux-foundation.org: coding-style fixes]
[sfr@canb.auug.org.au: drm/i915: fix up]
Link: http://lkml.kernel.org/r/20170816144703.378d4f4d@canb.auug.org.au
Link: http://lkml.kernel.org/r/20170728091904.14627-1-mhocko@kernel.org
Signed-off-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Mel Gorman <mgorman@suse.de>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Neil Brown <neilb@suse.de>
Cc: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
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gcc-7 points out that a negative port_num value would overflow the
string buffer:
drivers/infiniband/hw/mlx4/sysfs.c: In function 'mlx4_ib_device_register_sysfs':
drivers/infiniband/hw/mlx4/sysfs.c:251:16: error: 'sprintf' may write a terminating nul past the end of the destination [-Werror=format-overflow=]
drivers/infiniband/hw/mlx4/sysfs.c:251:2: note: 'sprintf' output between 2 and 11 bytes into a destination of size 10
drivers/infiniband/hw/mlx4/sysfs.c:303:17: error: 'sprintf' may write a terminating nul past the end of the destination [-Werror=format-overflow=]
drivers/infiniband/hw/mlx4/sysfs.c:303:3: note: 'sprintf' output between 2 and 11 bytes into a destination of size 10
While we should be able to assume that port_num is positive here, making
the buffer one byte longer has no downsides and avoids the warning.
Fixes: c1e7e466120b ("IB/mlx4: Add iov directory in sysfs under the ib device")
Link: http://lkml.kernel.org/r/20170714120720.906842-23-arnd@arndb.de
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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gcc-4.4.4 has issues with initialization of anonymous unions:
drivers/media/cec/cec-adap.c: In function 'cec_queue_msg_fh':
drivers/media/cec/cec-adap.c:184: error: unknown field 'lost_msgs' specified in initializer
work around this.
Fixes: 6b2bbb08747a5 ("media: cec: rework the cec event handling")
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Add driver support for the Altera I2C Controller. The I2C
controller is soft IP for use in FPGAs.
Signed-off-by: Thor Thayer <thor.thayer@linux.intel.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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The control process (NSP) may take some time to complete its
initialization. This is not a problem on most servers, but
on very fast-booting machines it may not be ready for operation
when driver probes the device. There is also a version of the
flash in the wild where NSP tries to train the links as part
of init. To wait for NSP initialization we should make sure
its resource has already been added to the resource table.
NSP adds itself there as last step of init.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Board state informs us which low-level initialization stages the card
has completed. We should wait for the card to be fully initialized
before trying to communicate with it, not only before we configure
passing traffic.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Previously we did not check the flow dissector against a list of allowed
and supported flow key dissectors. This patch introduces such a list and
correctly rejects unsupported flow keys.
Fixes: 43f84b72c50d ("nfp: add metadata to each flow offload")
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Richard Weinberger <richard@nod.at>
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Trivial fix to spelling mistake in ubi_err error message
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
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In build.c, the following pr_err calls should be terminated with
a new-line to avoid other messages being concatenated onto the end.
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
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In ubi_attach_mtd_dev() the pr_err() calls should have their
messgaes terminated with a new-line to avoid other messages
being concatenated onto the end.
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
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The ubi_init() function has a few error paths that use the
pr_err() to output errors. These should have new lines on
them as pr_err() does not automatically do this.
This fixes issues where if multiple mtd fail to bind to
ubi the console output starts wrapping around.
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
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git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk updates from Stephen Boyd:
"The diff is dominated by the Allwinner A10/A20 SoCs getting converted
to the sunxi-ng framework. Otherwise, the heavy hitters are various
drivers for SoCs like AT91, Amlogic, Renesas, and Rockchip. There are
some other new clk drivers in here too but overall this is just a
bunch of clk drivers for various different pieces of hardware and a
collection of non-critical fixes for clk drivers.
New Drivers:
- Allwinner R40 SoCs
- Renesas R-Car Gen3 USB 2.0 clock selector PHY
- Atmel AT91 audio PLL
- Uniphier PXs3 SoCs
- ARC HSDK Board PLLs
- AXS10X Board PLLs
- STMicroelectronics STM32H743 SoCs
Removed Drivers:
- Non-compiling mb86s7x support
Updates:
- Allwinner A10/A20 SoCs converted to sunxi-ng framework
- Allwinner H3 CPU clk fixes
- Renesas R-Car D3 SoC
- Renesas V2H and M3-W modules
- Samsung Exynos5420/5422/5800 audio fixes
- Rockchip fractional clk approximation fixes
- Rockchip rk3126 SoC support within the rk3128 driver
- Amlogic gxbb CEC32 and sd_emmc clks
- Amlogic meson8b reset controller support
- IDT VersaClock 5P49V5925/5P49V6901 support
- Qualcomm MSM8996 SMMU clks
- Various 'const' applications for struct clk_ops
- si5351 PLL reset bugfix
- Uniphier audio on LD11/LD20 and ethernet support on LD11/LD20/Pro4/PXs2
- Assorted Tegra clk driver fixes"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (120 commits)
clk: si5351: fix PLL reset
ASoC: atmel-classd: remove aclk clock
ASoC: atmel-classd: remove aclk clock from DT binding
clk: at91: clk-generated: make gclk determine audio_pll rate
clk: at91: clk-generated: create function to find best_diff
clk: at91: add audio pll clock drivers
dt-bindings: clk: at91: add audio plls to the compatible list
clk: at91: clk-generated: remove useless divisor loop
clk: mb86s7x: Drop non-building driver
clk: ti: check for null return in strrchr to avoid null dereferencing
clk: Don't write error code into divider register
clk: uniphier: add video input subsystem clock
clk: uniphier: add audio system clock
clk: stm32h7: Add stm32h743 clock driver
clk: gate: expose clk_gate_ops::is_enabled
clk: nxp: clk-lpc32xx: rename clk_gate_is_enabled()
clk: uniphier: add PXs3 clock data
clk: hi6220: change watchdog clock source
clk: Kconfig: Name RK805 in Kconfig for COMMON_CLK_RK808
clk: cs2000: Add cs2000_set_saved_rate
...
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git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
Pull RTC updates from Alexandre Belloni:
"Subsystem:
- remove .open() and .release() RTC ops
- constify i2c_device_id
New driver:
- Realtek RTD1295
- Android emulator (goldfish) RTC
Drivers:
- ds1307: Beginning of a huge cleanup
- s35390a: handle invalid RTC time
- sun6i: external oscillator gate support"
* tag 'rtc-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (40 commits)
rtc: ds1307: use octal permissions
rtc: ds1307: fix braces
rtc: ds1307: fix alignments and blank lines
rtc: ds1307: use BIT
rtc: ds1307: use u32
rtc: ds1307: use sizeof
rtc: ds1307: remove regs member
rtc: Add Realtek RTD1295
dt-bindings: rtc: Add Realtek RTD1295
rtc: sun6i: Add support for the external oscillator gate
rtc: goldfish: Add RTC driver for Android emulator
dt-bindings: Add device tree binding for Goldfish RTC driver
rtc: ds1307: add basic support for ds1341 chip
rtc: ds1307: remove member nvram_offset from struct ds1307
rtc: ds1307: factor out offset to struct chip_desc
rtc: ds1307: factor out rtc_ops to struct chip_desc
rtc: ds1307: factor out irq_handler to struct chip_desc
rtc: ds1307: improve irq setup
rtc: ds1307: constify struct chip_desc variables
rtc: ds1307: improve trickle charger initialization
...
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Pull SCSI fixes from James Bottomley:
"A tiny update: one patch corrects a Kconfig problem with the shift of
the SAS SMP code to BSG and the other removes a vestige of user space
target mode"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: scsi_transport_sas: select BLK_DEV_BSGLIB
scsi: Remove Scsi_Host.uspace_req_q
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Pull block fixes from Jens Axboe:
"Small collection of fixes that would be nice to have in -rc1. This
contains:
- NVMe pull request form Christoph, mostly with fixes for nvme-pci,
host memory buffer in particular.
- Error handling fixup for cgwb_create(), in case allocation of 'wb'
fails. From Christophe Jaillet.
- Ensure that trace_block_getrq() gets the 'dev' in an appropriate
fashion, to avoid a potential NULL deref. From Greg Thelen.
- Regression fix for dm-mq with blk-mq, fixing a problem with
stacking IO schedulers. From me.
- string.h fixup, fixing an issue with memcpy_and_pad(). This
original change came in through an NVMe dependency, which is why
I'm including it here. From Martin Wilck.
- Fix potential int overflow in __blkdev_sectors_to_bio_pages(), from
Mikulas.
- MBR enable fix for sed-opal, from Scott"
* 'for-linus' of git://git.kernel.dk/linux-block:
block: directly insert blk-mq request from blk_insert_cloned_request()
mm/backing-dev.c: fix an error handling path in 'cgwb_create()'
string.h: un-fortify memcpy_and_pad
nvme-pci: implement the HMB entry number and size limitations
nvme-pci: propagate (some) errors from host memory buffer setup
nvme-pci: use appropriate initial chunk size for HMB allocation
nvme-pci: fix host memory buffer allocation fallback
nvme: fix lightnvm check
block: fix integer overflow in __blkdev_sectors_to_bio_pages()
block: sed-opal: Set MBRDone on S3 resume path if TPER is MBREnabled
block: tolerate tracing of NULL bio
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IPv6 TSO requests with extension hdrs are a problem to the
Lancer and BEx chips. Workaround is to disable TSO6 feature
for such packets.
Also in Lancer chips, MSS less than 256 was resulting in TX stall.
Fix this by disabling GSO when MSS less than 256.
Signed-off-by: Suresh Reddy <suresh.reddy@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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into drm-next
A few fixes for 4.14. Nothing too major.
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