This command is not really fast and can make resume time slower. We only
need to get route again if the link was changed and during initial
device connected message.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
PCI defaults to 32-bit DMA mask but this device is capable of full
64-bit addressing, so make sure we first try 64-bit DMA mask before
falling back to the default 32-bit.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fixes small variable name typo and the associated
checkpatch spelling warning.
Signed-off-by: Nathan Ciobanu <nathan.d.ciobanu@linux.intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
There are also a couple of fixes that can wait for the coming merge
window.
Core new features
* Support for phase channels (used in time of flight sensors amongst
other things)
* Support for deep UV light channel modifier.
New Device Support
* AD4758 DAC
- New driver and dt bindings.
* adxl345
- Support the adxl375 +-200g part which is register compatible.
* isl29501 Time of flight sensor.
- New driver
* meson-saradc
- Support the Meson8m2 Socs - right now this is just an ID, but there will
be additional difference in future.
* mpu6050
- New ID for 6515 variant.
* si1133 UV sensor.
- New driver
* Spreadtrum SC27xx PMIC ADC
- New driver and dt bindings.
Features
* adxl345
- Add calibration offset readback and writing.
- Add sampling frequency control.
Fixes and Cleanups
* ad5933
- Use a macro for the channel definition to reduce duplication.
* ad9523
- Replace use of core mlock with a local lock. Part of ongoing efforts
to avoid confusing the purpose of mlock which is only about iio core
state changes.
- Fix displayed phase which was out by a factor of 10.
* adxl345
- Add a link to the datasheet.
- Rework the use of the address field in the chan_spec structures to
allow addition of more per channel information.
* adis imu
- Mark switch fall throughs.
* at91-sama5d2
- Fix some casting on big endian systems.
* bmp280
- Drop some DT elements that aren't used and should mostly be done from
userspace rather than in DT.
* hx711
- add clock-frequency dt binding and resulting delay to deal with capacitance
issue on some boards.
- fix a spurious unit-address in the example.
* ina2xx
- Avoid a possible kthread_stop with a stale task_struct.
* ltc2632
- Remove some unused local variables (assigned but value never used).
* max1363
- Use device_get_match_data to remove some boilerplate.
* mma8452
- Mark switch fall throughs.
* sca3000
- Fix a missing return in a switch statement (a bad fallthrough
previously!)
* sigma-delta-modulator
- Drop incorrect unit address from the DT example.
* st_accel
- Use device_get_match_data to drop some boiler plate.
- Move to probe_new for i2c driver as second parameter not used.
* st_sensors library
- Use a strlcpy (safe in this case).
* st_lsm6dsx
- Add some error logging.
* ti-ads7950
- SPDX
- Allow simultaneous buffered and polled reads. Needed on a Lego Mindstorms
EV3 where some channels are used for power supply monitoring at a very low
rate.
* ti-dac5571
- Remove an unused variable.
* xadc
- Drop some dead code.
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Merge tag 'iio-for-4.19b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next
Jonathan writes:
Second set of IIO new device support, features and cleanups.
There are also a couple of fixes that can wait for the coming merge
window.
Core new features
* Support for phase channels (used in time of flight sensors amongst
other things)
* Support for deep UV light channel modifier.
New Device Support
* AD4758 DAC
- New driver and dt bindings.
* adxl345
- Support the adxl375 +-200g part which is register compatible.
* isl29501 Time of flight sensor.
- New driver
* meson-saradc
- Support the Meson8m2 Socs - right now this is just an ID, but there will
be additional difference in future.
* mpu6050
- New ID for 6515 variant.
* si1133 UV sensor.
- New driver
* Spreadtrum SC27xx PMIC ADC
- New driver and dt bindings.
Features
* adxl345
- Add calibration offset readback and writing.
- Add sampling frequency control.
Fixes and Cleanups
* ad5933
- Use a macro for the channel definition to reduce duplication.
* ad9523
- Replace use of core mlock with a local lock. Part of ongoing efforts
to avoid confusing the purpose of mlock which is only about iio core
state changes.
- Fix displayed phase which was out by a factor of 10.
* adxl345
- Add a link to the datasheet.
- Rework the use of the address field in the chan_spec structures to
allow addition of more per channel information.
* adis imu
- Mark switch fall throughs.
* at91-sama5d2
- Fix some casting on big endian systems.
* bmp280
- Drop some DT elements that aren't used and should mostly be done from
userspace rather than in DT.
* hx711
- add clock-frequency dt binding and resulting delay to deal with capacitance
issue on some boards.
- fix a spurious unit-address in the example.
* ina2xx
- Avoid a possible kthread_stop with a stale task_struct.
* ltc2632
- Remove some unused local variables (assigned but value never used).
* max1363
- Use device_get_match_data to remove some boilerplate.
* mma8452
- Mark switch fall throughs.
* sca3000
- Fix a missing return in a switch statement (a bad fallthrough
previously!)
* sigma-delta-modulator
- Drop incorrect unit address from the DT example.
* st_accel
- Use device_get_match_data to drop some boiler plate.
- Move to probe_new for i2c driver as second parameter not used.
* st_sensors library
- Use a strlcpy (safe in this case).
* st_lsm6dsx
- Add some error logging.
* ti-ads7950
- SPDX
- Allow simultaneous buffered and polled reads. Needed on a Lego Mindstorms
EV3 where some channels are used for power supply monitoring at a very low
rate.
* ti-dac5571
- Remove an unused variable.
* xadc
- Drop some dead code.
Currently, if the DT does not define num-interpolated-steps then
num_steps is undefined and the interpolation code will deploy randomly.
Fix with a simple initialize to zero.
Fixes: 573fe6d1c2 ("backlight: pwm_bl: Linear interpolation between brightness-levels")
Reported-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Add a node for the CVIC (the coprocessor interrupt controller) and
add a label to the SRAM node so it can be referenced from the board
device-tree file.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Joel Stanley <joel@jms.id.au>
ath.git patches for 4.19. Major changes:
wcn36xx
* fix WEP in client mode
wil6210
* add support for Talyn-MB (Talyn ver 2.0) device
* add support for enhanced DMA firmware feature
NVRAM is designed to work with Broadcom's SDK Linux kernel which fakes
PCI domain 0 for all internal MMIO devices. Since official Linux kernel
uses platform devices for that purpose there is a mismatch in numbering
PCI domains.
There used to be a fix for that problem but it was accidentally dropped
during the last firmware loading rework. That resulted in brcmfmac not
being able to extract device specific NVRAM content and all kind of
calibration problems.
Reported-by: Aditya Xavier <adityaxavier@gmail.com>
Fixes: 2baa3aaee2 ("brcmfmac: introduce brcmf_fw_alloc_request() function")
Cc: stable@vger.kernel.org # v4.17+
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Add new device IDs for the 9000 series.
Cc: stable@vger.kernel.org # 4.14
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Provide a flexible way to determine the addressing bits of eeprom.
Pass the addressing bits to driver through address-width property.
Signed-off-by: Alan Chiang <alanx.chiang@intel.com>
Signed-off-by: Andy Yeh <andy.yeh@intel.com>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Currently the only way to use a variant of a supported model with
a different address width is to define a new compatible string and
the corresponding chip data structure.
Provide a flexible way to specify the size of the address pointer
by defining a new property: address-width.
Signed-off-by: Alan Chiang <alanx.chiang@intel.com>
Signed-off-by: Andy Yeh <andy.yeh@intel.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Rob Herring <robh@kernel.org>
[Bartosz: fixed the commit message]
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
With the recent syntax extension, Kconfig is now able to evaluate the
compiler / toolchain capability.
However, accumulating flags to 'LD' is not compatible with the way
it works; 'LD' must be passed to Kconfig to call $(ld-option,...)
from Kconfig files. If you tweak 'LD' in arch Makefile depending on
CONFIG_CPU_BIG_ENDIAN, this would end up with circular dependency
between Makefile and Kconfig.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Now that the early boot rework is upstream we can enable the gcc plugins
again. See git commit 72f108b308707f21499e0ac05bf7370360cf06d8
"s390: disable gcc plugins" for reference.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
The s390 build currently fails with the latent entropy plugin:
arch/s390/kernel/als.o: In function `verify_facilities':
als.c:(.init.text+0x24): undefined reference to `latent_entropy'
als.c:(.init.text+0xae): undefined reference to `latent_entropy'
make[3]: *** [arch/s390/boot/compressed/vmlinux] Error 1
make[2]: *** [arch/s390/boot/compressed/vmlinux] Error 2
make[1]: *** [bzImage] Error 2
This will be fixed with the early boot rework from Vasily, which
is planned for the 4.19 merge window.
For 4.18 the simplest solution is to disable the gcc plugins and
reenable them after the early boot rework is upstream.
Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
(cherry picked from commit 2fba3573f1)
This enables the devices used in the AST2400 family of BMC SoCs:
- VUART
- SPI NOR
- LPC controller
- LPC snoop (port 80)
- Ethernet
- GPIO
- ADC
- I2C
- Random number generator
- IPMI KCS
- IPMI BT
- Fan/Tach
Acked-by: Andrew Jeffery <andrew@aj.id.au>
Signed-off-by: Joel Stanley <joel@jms.id.au>
This is the result of a make mutli_v5_defconfig && make savedefconfig.
Acked-by: Andrew Jeffery <andrew@aj.id.au>
Signed-off-by: Joel Stanley <joel@jms.id.au>
- Enable new support:
hardware random number generator
FSI and client drivers
DRM GFX driver
- Disable unwanted features:
ARM_APPENDED_DTB
ARM_ATAG_DTB_COMPAT
BLK_DEV_RAM
- Sync G4 and G5 with OpenBMC configurations
BLK_DEV_LOOP, for updater mechanic
CRYPTO_HMAC, for libsdbus features
CRYPTO_SHA256
CRYPTO_USER_API_HASH
- Enable security related features:
SLAB_FREELIST_RANDOM
STRICT_KERNEL_RW
CC_STACKPROTECTOR_STRONG
HARDENED_USERCOPY
FORTIFY_SOURCE
- Increase kernel log buffer size
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Signed-off-by: Joel Stanley <joel@jms.id.au>
Then reading the RTAG/RCRC "registers" from the coprocessor after
a command is complete, mask out the top bits, only keep the relevant
bits. Microcode v5 will leave garbage in those top bits as a
result of a performance optimization.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
Adjust tcp_client.py and tcp_server.py to work with Python 3 by using
the print function, marking string literals as bytes, and using the
newer exception syntax. This should be functionally equivalent and
supports Python 3+.
Signed-off-by: Jeremy Cline <jcline@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Fix inconsistent IS_ERR and PTR_ERR in get_btf,
the proper pointer to be passed as argument is '*btf'
This issue was detected with the help of Coccinelle.
Fixes: 2d3feca8c4 ("bpf: btf: print map dump and lookup with btf info")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Martin KaFai Lau says:
====================
The series allows the BPF loader to figure out the btf_key_id
and btf_value_id from a map's name by using BPF_ANNOTATE_KV_PAIR()
similarly as in iproute2 commit f823f36012fb ("bpf: implement
btf handling and map annotation").
It also removes the old 'typedef' way which requires two separate
typedefs (one for the key and one for the value).
By doing this, iproute2 and libbpf have one consistent way to
figure out the btf_key_type_id and btf_value_type_id for a map.
The first two patches are some prep/cleanup works. The last patch
introduces BPF_ANNOTATE_KV_PAIR.
v3:
- Replace some more *int*_t and u* usages with the
equivalent __[su]* in btf.c
v2:
- Fix the incorrect '&&' check on container_type
in bpf_map_find_btf_info().
- Expose the existing static btf_type_by_id() instead of
creating a new one.
====================
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This patch introduces BPF_ANNOTATE_KV_PAIR to signal the
bpf loader about the btf key_type and value_type of a bpf map.
Please refer to the changes in test_btf_haskv.c for its usage.
Both iproute2 and libbpf loader will then have the same
convention to find out the map's btf_key_type_id and
btf_value_type_id from a map's name.
Fixes: 8a138aed4a ("bpf: btf: Add BTF support to libbpf")
Suggested-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This patch replaces [u]int32_t and [u]int64_t usage with
__[su]32 and __[su]64. The same change goes for [u]int16_t
and [u]int8_t.
Fixes: 8a138aed4a ("bpf: btf: Add BTF support to libbpf")
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This patch sync the uapi btf.h to tools/
Fixes: 36fc3c8c28 bpf: btf: Clean up BTF_INT_BITS() in uapi btf.h
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
The ar724x pci driver expects the PCIe controller to be brought out of
reset by the bootloader.
At least the AVM Fritz 300E bootloader doesn't take care of releasing
the different PCIe controller related resets which causes an endless
hang as soon as either the PCIE Reset register (0x180f0018) or the PCI
Application Control register (0x180f0000) is read from.
Do the full "PCIE Root Complex Initialization Sequence" if the PCIe
host controller is still in reset during probing.
The QCA u-boot sleeps 10ms after the PCIE Application Control bit is
set to ready. It has been shown that 10ms might not be enough time if
PCIe should be used right after setting the bit. During my tests it
took up to 20ms till the link was up. Giving the link up to 100ms
should work for all cases.
Signed-off-by: Mathias Kresin <dev@kresin.me>
Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Patchwork: https://patchwork.linux-mips.org/patch/19916/
Cc: James Hogan <jhogan@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
This patch ensures, that the pinmux register is properly setup for the
boot console UART when early_printk is enabled.
[paul.burton@mips.com:
- s/poinmux/pinmux/
- s/uart/UART/
- Drop extraneous parentheses.]
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: James Hogan <jhogan@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
This patch adds a few additional cpu feature overrides so that they do not
need to be probed at runtime.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Patchwork: https://patchwork.linux-mips.org/patch/19914/
Cc: James Hogan <jhogan@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
This patch disables irq on reboot to fix hang issues that were observed
due to pending interrupts.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Patchwork: https://patchwork.linux-mips.org/patch/19913/
Cc: James Hogan <jhogan@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
The pinmux on QCA SoCs is controlled by a single register. The
"pinctrl-single" driver can be used but requires the target
to select PINCTRL.
Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Patchwork: https://patchwork.linux-mips.org/patch/19909/
Cc: James Hogan <jhogan@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
This patch adds support for 2 new types of QCA silicon. TP9343 is
essentially the same as the QCA956X but is licensed by TPLink.
Signed-off-by: Weijie Gao <hackpascal@gmail.com>
Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Patchwork: https://patchwork.linux-mips.org/patch/19911/
Cc: James Hogan <jhogan@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
This patch adds many new registers for various QCA MIPS SoCs. The patch is
an aggragate of many contributions made to OpenWrt.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: Henryk Heisig <hyniu@o2.pl>
Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
Signed-off-by: Weijie Gao <hackpascal@gmail.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Julien Dusser <julien.dusser@free.fr>
Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Patchwork: https://patchwork.linux-mips.org/patch/19910/
Cc: James Hogan <jhogan@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
- Fix an off-by-one in reporting PCI resource sizes to userland which
regressed in v3.12.
- Fix writes to DDR controller registers used to flush write buffers,
which regressed with some refactoring in v4.2.
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Merge tag 'mips_fixes_4.18_4' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
Pull MIPS fixes from Paul Burton:
"A couple more MIPS fixes for 4.18:
- Fix an off-by-one in reporting PCI resource sizes to userland which
regressed in v3.12.
- Fix writes to DDR controller registers used to flush write buffers,
which regressed with some refactoring in v4.2"
* tag 'mips_fixes_4.18_4' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
MIPS: ath79: fix register address in ath79_ddr_wb_flush()
MIPS: Fix off-by-one in pci_resource_to_user()
Ocelot now has a u-boot port, allow building FIT images instead of relying
on the legacy detection and builtin DTB.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Reviewed-by: James Hogan <jhogan@kernel.org>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Patchwork: https://patchwork.linux-mips.org/patch/19632/
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Get rid of extern declarations in .c functions and included
the necessary header file. Also remove unused UART declares.
Signed-off-by: Steven J. Hill <steven.hill@cavium.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Patchwork: https://patchwork.linux-mips.org/patch/19477/
Cc: linux-mips@linux-mips.org
Pull networking fixes from David Miller:
1) Handle stations tied to AP_VLANs properly during mac80211 hw
reconfig. From Manikanta Pubbisetty.
2) Fix jump stack depth validation in nf_tables, from Taehee Yoo.
3) Fix quota handling in aRFS flow expiration of mlx5 driver, from Eran
Ben Elisha.
4) Exit path handling fix in powerpc64 BPF JIT, from Daniel Borkmann.
5) Use ptr_ring_consume_bh() in page pool code, from Tariq Toukan.
6) Fix cached netdev name leak in nf_tables, from Florian Westphal.
7) Fix memory leaks on chain rename, also from Florian Westphal.
8) Several fixes to DCTCP congestion control ACK handling, from Yuchunk
Cheng.
9) Missing rcu_read_unlock() in CAIF protocol code, from Yue Haibing.
10) Fix link local address handling with VRF, from David Ahern.
11) Don't clobber 'err' on a successful call to __skb_linearize() in
skb_segment(). From Eric Dumazet.
12) Fix vxlan fdb notification races, from Roopa Prabhu.
13) Hash UDP fragments consistently, from Paolo Abeni.
14) If TCP receives lots of out of order tiny packets, we do really
silly stuff. Make the out-of-order queue ending more robust to this
kind of behavior, from Eric Dumazet.
15) Don't leak netlink dump state in nf_tables, from Florian Westphal.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (76 commits)
net: axienet: Fix double deregister of mdio
qmi_wwan: fix interface number for DW5821e production firmware
ip: in cmsg IP(V6)_ORIGDSTADDR call pskb_may_pull
bnx2x: Fix invalid memory access in rss hash config path.
net/mlx4_core: Save the qpn from the input modifier in RST2INIT wrapper
r8169: restore previous behavior to accept BIOS WoL settings
cfg80211: never ignore user regulatory hint
sock: fix sg page frag coalescing in sk_alloc_sg
netfilter: nf_tables: move dumper state allocation into ->start
tcp: add tcp_ooo_try_coalesce() helper
tcp: call tcp_drop() from tcp_data_queue_ofo()
tcp: detect malicious patterns in tcp_collapse_ofo_queue()
tcp: avoid collapses in tcp_prune_queue() if possible
tcp: free batches of packets in tcp_prune_ofo_queue()
ip: hash fragments consistently
ipv6: use fib6_info_hold_safe() when necessary
can: xilinx_can: fix power management handling
can: xilinx_can: fix incorrect clear of non-processed interrupts
can: xilinx_can: fix RX overflow interrupt not being enabled
can: xilinx_can: keep only 1-2 frames in TX FIFO to fix TX accounting
...
It is not immediately obvious what the expected inputs to these fault
handlers is and how they calculate the number of unset bytes. Having
stared deeply at this in order to fix some corner cases, add some
comments to assist those who follow.
Signed-off-by: Matt Redfearn <matt.redfearn@mips.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Patchwork: https://patchwork.linux-mips.org/patch/19339/
Cc: James Hogan <jhogan@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: <linux-mips@linux-mips.org>
Cc: <linux-kernel@vger.kernel.org>
The __clear_user function is defined to return the number of bytes that
could not be cleared. From the underlying memset / bzero implementation
this means setting register a2 to that number on return. Currently if a
page fault is triggered within the MIPSr6 version of setting of initial
unaligned bytes, the value loaded into a2 on return is meaningless.
During the MIPSr6 version of the initial unaligned bytes block, register
a2 contains the number of bytes to be set beyond the initial unaligned
bytes. The t0 register is initally set to the number of unaligned bytes
- STORSIZE, effectively a negative version of the number of unaligned
bytes. This is then incremented before each byte is saved.
The label .Lbyte_fixup\@ is jumped to on page fault. Currently the value
in a2 is incorrectly replaced by 0 - t0 + 1, effectively the number of
unaligned bytes remaining. This leads to the failures being reported by
the following test code:
static int __init test_clear_user(void)
{
int j, k;
pr_info("\n\n\nTesting clear_user\n");
for (j = 0; j < 512; j++) {
if ((k = clear_user(NULL+3, j)) != j) {
pr_err("clear_user (NULL %d) returned %d\n", j, k);
}
}
return 0;
}
late_initcall(test_clear_user);
Which reports:
[ 3.965439] Testing clear_user
[ 3.973169] clear_user (NULL 8) returned 6
[ 3.976782] clear_user (NULL 9) returned 6
[ 3.980390] clear_user (NULL 10) returned 6
[ 3.984052] clear_user (NULL 11) returned 6
[ 3.987524] clear_user (NULL 12) returned 6
Fix this by subtracting t0 from a2 (rather than $0), effectivey giving:
unset_bytes = (#bytes - (#unaligned bytes)) - (-#unaligned bytes remaining + 1) + 1
a2 = a2 - t0 + 1
This fixes the value returned from __clear user when the number of bytes
to set is > LONGSIZE and the address is invalid and unaligned.
Unfortunately, this breaks the fixup handling for unaligned bytes after
the final long, where register a2 still contains the number of bytes
remaining to be set and the t0 register is to 0 - the number of
unaligned bytes remaining.
Because t0 is now is now subtracted from a2 rather than 0, the number of
bytes unset is reported incorrectly:
static int __init test_clear_user(void)
{
char *test;
int j, k;
pr_info("\n\n\nTesting clear_user\n");
test = vmalloc(PAGE_SIZE);
for (j = 256; j < 512; j++) {
if ((k = clear_user(test + PAGE_SIZE - 254, j)) != j - 254) {
pr_err("clear_user (%px %d) returned %d\n",
test + PAGE_SIZE - 254, j, k);
}
}
return 0;
}
late_initcall(test_clear_user);
[ 3.976775] clear_user (c00000000000df02 256) returned 4
[ 3.981957] clear_user (c00000000000df02 257) returned 6
[ 3.986425] clear_user (c00000000000df02 258) returned 8
[ 3.990850] clear_user (c00000000000df02 259) returned 10
[ 3.995332] clear_user (c00000000000df02 260) returned 12
[ 3.999815] clear_user (c00000000000df02 261) returned 14
Fix this by ensuring that a2 is set to 0 during the set of final
unaligned bytes.
Signed-off-by: Matt Redfearn <matt.redfearn@mips.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Fixes: 8c56208aff ("MIPS: lib: memset: Add MIPS R6 support")
Patchwork: https://patchwork.linux-mips.org/patch/19338/
Cc: James Hogan <jhogan@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: stable@vger.kernel.org # v4.0+
Syzbot reported a read beyond the end of the skb head when returning
IPV6_ORIGDSTADDR:
BUG: KMSAN: kernel-infoleak in put_cmsg+0x5ef/0x860 net/core/scm.c:242
CPU: 0 PID: 4501 Comm: syz-executor128 Not tainted 4.17.0+ #9
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x185/0x1d0 lib/dump_stack.c:113
kmsan_report+0x188/0x2a0 mm/kmsan/kmsan.c:1125
kmsan_internal_check_memory+0x138/0x1f0 mm/kmsan/kmsan.c:1219
kmsan_copy_to_user+0x7a/0x160 mm/kmsan/kmsan.c:1261
copy_to_user include/linux/uaccess.h:184 [inline]
put_cmsg+0x5ef/0x860 net/core/scm.c:242
ip6_datagram_recv_specific_ctl+0x1cf3/0x1eb0 net/ipv6/datagram.c:719
ip6_datagram_recv_ctl+0x41c/0x450 net/ipv6/datagram.c:733
rawv6_recvmsg+0x10fb/0x1460 net/ipv6/raw.c:521
[..]
This logic and its ipv4 counterpart read the destination port from
the packet at skb_transport_offset(skb) + 4.
With MSG_MORE and a local SOCK_RAW sender, syzbot was able to cook a
packet that stores headers exactly up to skb_transport_offset(skb) in
the head and the remainder in a frag.
Call pskb_may_pull before accessing the pointer to ensure that it lies
in skb head.
Link: http://lkml.kernel.org/r/CAF=yD-LEJwZj5a1-bAAj2Oy_hKmGygV6rsJ_WOrAYnv-fnayiQ@mail.gmail.com
Reported-by: syzbot+9adb4b567003cac781f0@syzkaller.appspotmail.com
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Rx hash/filter table configuration uses rss_conf_obj to configure filters
in the hardware. This object is initialized only when the interface is
brought up.
This patch adds driver changes to configure rss params only when the device
is in opened state. In port disabled case, the config will be cached in the
driver structure which will be applied in the successive load path.
Please consider applying it to 'net' branch.
Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Function mlx4_RST2INIT_QP_wrapper saved the qp number passed in the qp
context, rather than the one passed in the input modifier.
However, the qp number in the qp context is not defined as a
required parameter by the FW. Therefore, drivers may choose to not
specify the qp number in the qp context for the reset-to-init transition.
Thus, we must save the qp number passed in the command input modifier --
which is always present. (This saved qp number is used as the input
modifier for command 2RST_QP when a slave's qp's are destroyed).
Fixes: c82e9aa0a8 ("mlx4_core: resource tracking for HCA resources used by guests")
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Drop useless redefinitions of cgraph_create_edge* macros. Drop the unused
nest argument. Also support gcc-8, which doesn't have freq argument.
Signed-off-by: Alexander Popov <alex.popov@linux.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
The layout of Makefile.gcc-plugins had uneven tabs, and the long names
of things made this file a bit hard to quickly visually parse. This
breaks lines and moves options to the same tab depth. While we're at
it, this also adds some comments about the various sections.
Signed-off-by: Kees Cook <keescook@chromium.org>
Add the audio memory arbiter which control the access of the audio
fifos to the DDR.
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
The usb power regulator is supplied by the vcc 5v regulator and
controlled by a GPIO. This will be needed to enable usb.
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
This regulator is controlled by a GPIO and supplies various devices
on the board, such as the lineout codec, the usb supply or the lcd
controller.
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Add the parent supply of the s400 power supplies.
Also add 'regulator-always-on' property on the regulators which can't
be disabled
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
