Markus Schneider-Pargmann <msp@baylibre.com> says:
as requested I split the series into two parts. This is the first
parts with simple improvements to reduce the number of SPI transfers.
The second part will be the rest with coalescing support and more
complex optimizations.
Changes since v1: https://lore.kernel.org/all/20221116205308.2996556-1-msp@baylibre.com
- Fixed register ranges
- Added fixes: tag for two patches
Link: https://lore.kernel.org/all/20221206115728.1056014-1-msp@baylibre.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Specify exactly which registers are read/writeable in the chip. This
is supposed to help detect any violations in the future.
Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
Link: https://lore.kernel.org/all/20221206115728.1056014-12-msp@baylibre.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
According to the datasheet 0x10 is the last register in the first block,
not register 0x2c.
The datasheet lists the last register of the second block as 0x830, not
0x83c.
Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
Link: https://lore.kernel.org/all/20221206115728.1056014-11-msp@baylibre.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
TCAN4X5X_ERROR_STATUS is not a status register that needs clearing
during interrupt handling. Instead this is a masking register that masks
error interrupts. Writing TCAN4X5X_CLEAR_ALL_INT to this register
effectively masks everything.
Rename the register and mask all error interrupts only once by writing
to the register in tcan4x5x_init.
Fixes: 5443c226ba ("can: tcan4x5x: Add tcan4x5x driver to the kernel")
Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
Link: https://lore.kernel.org/all/20221206115728.1056014-10-msp@baylibre.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Register 0x824 TCAN4X5X_MCAN_INT_REG is a read-only register. Any writes
to this register do not have any effect.
Remove this write. The m_can driver aldready clears the interrupts in
m_can_isr() by writing to M_CAN_IR which is translated to register
0x1050 which is a writable version of this register.
Fixes: 5443c226ba ("can: tcan4x5x: Add tcan4x5x driver to the kernel")
Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
Link: https://lore.kernel.org/all/20221206115728.1056014-9-msp@baylibre.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Instead of acknowledging every item of the fifo, only acknowledge the
last item read. This behavior is documented in the datasheet. The new
getindex will be the acknowledged item + 1.
Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
Link: https://lore.kernel.org/all/20221206115728.1056014-8-msp@baylibre.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Transmit events from the txe fifo can be batch acknowledged by
acknowledging the last read txe fifo item. This will save txe_count
writes which is important for peripheral chips.
Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
Link: https://lore.kernel.org/all/20221206115728.1056014-7-msp@baylibre.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
The getindex gets increased by one every time. We can calculate the
correct getindex in the driver and avoid the additional reads of rxfs.
Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
Link: https://lore.kernel.org/all/20221206115728.1056014-6-msp@baylibre.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
The getindex simply increases by one for every iteration. There is no
need to get the current getidx every time from a register. Instead we
can just count and wrap if necessary.
Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
Link: https://lore.kernel.org/all/20221206115728.1056014-5-msp@baylibre.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
For peripheral devices the m_can_rx_handler is called directly after
setting cdev->irqstatus. This means we don't have to read the irqstatus
again in m_can_rx_handler. Avoid this by adding a parameter that is
false for direct calls.
Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
Link: https://lore.kernel.org/all/20221206115728.1056014-3-msp@baylibre.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
The TXFQS register is read first to check if the fifo is full and then
immediately again to get the putidx. This is unnecessary and adds
significant overhead if read requests are done over a slow bus, for
example SPI with tcan4x5x.
Add a variable to store the value of the register. Split the
m_can_tx_fifo_full function into two to avoid the hidden m_can_read call
if not needed.
Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
Link: https://lore.kernel.org/all/20221206115728.1056014-2-msp@baylibre.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
According to the bindings, only two channels are supported.
However, R-Car V3U supports eight, leading to "make dtbs" failures:
arch/arm64/boot/dts/renesas/r8a779a0-falcon.dtb: can@e6660000: Unevaluated properties are not allowed ('channel2', 'channel3', 'channel4', 'channel5', 'channel6', 'channel7' were unexpected)
Update the number of channels to 8 on R-Car V3U.
While at it, prevent adding more properties to the channel nodes, as
they must contain no other properties than a status property.
Fixes: d6254d52d7 ("dt-bindings: can: renesas,rcar-canfd: Document r8a779a0 support")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/all/7d41d72cd7db2e90bae069ce57dbb672f17500ae.1670431681.git.geert+renesas@glider.be
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Add support for SO_MARK to the CAN_RAW protocol. This makes it
possible to add traffic control filters based on the fwmark.
Link: https://lore.kernel.org/all/20221210113653.170346-1-mkl@pengutronix.de
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
When we try to access the mcan message ram addresses during the probe,
hclk is gated by any other drivers or disabled, because of that probe
gets failed.
Move the mram init functionality to mcan chip config called by
m_can_start from mcan open function, by that time clocks are
enabled.
Suggested-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Vivek Yadav <vivek.2311@samsung.com>
Link: https://lore.kernel.org/all/20221207100632.96200-2-vivek.2311@samsung.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Vincent Mailhol <mailhol.vincent@wanadoo.fr> says:
The gs_can and ucan drivers keep a pointer to struct usb_interface in
their private structure. This is not needed. For gs_can the only use
is to retrieve struct usb_device, which is already available in
gs_usb::udev. For ucan, the field is set but never used.
Remove the struct usb_interface fields and clean up.
Link: https://lore.kernel.org/all/20221208081142.16936-1-mailhol.vincent@wanadoo.fr
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
The iface field of struct gs_can is only used to retrieve the
usb_device which is already available in gs_can::udev.
Replace each occurrence of interface_to_usbdev(dev->iface) with
dev->udev. This done, remove gs_can::iface.
Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Link: https://lore.kernel.org/all/20221208081142.16936-3-mailhol.vincent@wanadoo.fr
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
The implementation of strscpy() is more robust and safer.
That's now the recommended way to copy NUL terminated strings.
Signed-off-by: Xu Panda <xu.panda@zte.com.cn>
Signed-off-by: Yang Yang <yang.yang29@zte.com>
Link: https://lore.kernel.org/all/202212070909095189693@zte.com.cn
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Vincent Mailhol <mailhol.vincent@wanadoo.fr> says:
The goal of this series is to report the firmware version, the
bootloader version and the hardware revision of ETAS ES58x devices.
These are already reported in the kernel log but this isn't best
practice. Remove the kernel log and instead export all these through
devlink. The devlink core automatically exports the firmware and the
bootloader version to ethtool, so no need to implement the
ethtool_ops::get_drvinfo() callback anymore.
Patch one and two implement the core support for devlink (at device
level) and devlink port (at the network interface level).
Patch three export usb_cache_string() and patch four add a new info
attribute to devlink.h. Both are prerequisites for patch five.
Patch five is the actual goal: it parses the product information from
a custom usb string returned by the device and expose them through
devlink.
Patch six removes the product information from the kernel log.
Finally, patch seven add a devlink documentation page with list all
the information attributes reported by the driver.
* Sample outputs following this series *
| $ devlink dev info
| usb/1-9:1.1:
| serial_number 0108954
| versions:
| fixed:
| board.rev B012/000
| running:
| fw 04.00.01
| fw.bootloader 02.00.00
| $ devlink port show can0
| usb/1-9:1.1/0: type eth netdev can0 flavour physical port 0 splittable false
| $ ethtool -i can0
| driver: etas_es58x
| version: 6.1.0-rc7+
| firmware-version: 04.00.01 02.00.00
| expansion-rom-version:
| bus-info: 1-9:1.1
| supports-statistics: no
| supports-test: no
| supports-eeprom-access: no
| supports-register-dump: no
| supports-priv-flags: no
* Changelog *
v4 -> v5: https://lore.kernel.org/all/20221130174658.29282-1-mailhol.vincent@wanadoo.fr
* [PATH 2/7] add devlink port support. This extends devlink to the
network interface.
* thanks to devlink port, 'ethtool -i' is now able to retrieve the
firmware version from devlink. No need to implement the
ethtool_ops::get_drvinfo() callback anymore: remove one patch from
the series.
* [PATCH 4/7] A new patch to add a new info attribute for the
bootloader version in devlink.h. This patch was initially sent as
a standalone patch here:
https://lore.kernel.org/netdev/20221129031406.3849872-1-mailhol.vincent@wanadoo.fr
Merging it to this series so that it is both added and used at the
same time.
* [PATCH 5/7] use the newly info attribute defined in patch 4/7 to
report the bootloader version instead of the custom string "bl".
* [PATCH 5/7] because the series does not implement
ethtool_ops::get_drvinfo() anymore, the two helper functions
es58x_sw_version_is_set() and es58x_hw_revision_is_set() are only
used in devlink.c. Move them from es58x_core.h to es58x_devlink.c.
* [PATCH 5/7] small rework of the helper function
es58x_hw_revision_is_set(): it is OK to only check the letter (if
the letter is '\0', it will not be possible to print the next
numbers).
* [PATCH 5/7 and 6/7] add reviewed-by Andrew Lunn tag.
* [PATCH 7/7] Now, 'ethtool -i' reports both the firmware version
and the bootloader version (this is how the core export the
information from devlink to ethtool). Update the documentation to
reflect this fact.
* Reoder the patches.
v3 -> v4: https://lore.kernel.org/all/20221126162211.93322-1-mailhol.vincent@wanadoo.fr
* major rework to use devlink instead of sysfs following Andrew's
comment.
* split the series in 6 patches.
* [PATCH 1/6] add Acked-by: Greg Kroah-Hartman
v2 -> v3: https://lore.kernel.org/all/20221113040108.68249-1-mailhol.vincent@wanadoo.fr
* patch 2/3: do not spam the kernel log anymore with the product
number. Instead parse the product information string, extract the
firmware version, the bootloadar version and the hardware revision
and export them through sysfs.
* patch 2/3: rework the parsing in order not to need additional
fields in struct es58x_parameters.
* patch 3/3: only populate ethtool_drvinfo::fw_version because since
commit edaf5df22c ("ethtool: ethtool_get_drvinfo: populate
drvinfo fields even if callback exits"), there is no need to
populate ethtool_drvinfo::driver and ethtool_drvinfo::bus_info in
the driver.
v1 -> v2: https://lore.kernel.org/all/20221104171604.24052-1-mailhol.vincent@wanadoo.fr
* was a single patch. It is now a series of three patches.
* add a first new patch to export usb_cache_string().
* add a second new patch to apply usb_cache_string() to existing code.
* add missing check on product info string to prevent a buffer overflow.
* add comma on the last entry of struct es58x_parameters.
v1: https://lore.kernel.org/all/20221104073659.414147-1-mailhol.vincent@wanadoo.fr
Link: https://lore.kernel.org/all/20221130174658.29282-1-mailhol.vincent@wanadoo.fr
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
List all the version information reported by the etas_es58x driver
through devlink. Also, update MAINTAINERS with the newly created file.
Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Link: https://lore.kernel.org/all/20221130174658.29282-8-mailhol.vincent@wanadoo.fr
[mkl: fixed version information table: "bl" -> "fw.bootloader"
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Now that the product information are available under devlink, no more
need to print them in the kernel log. Remove es58x_get_product_info().
Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/all/20221130174658.29282-7-mailhol.vincent@wanadoo.fr
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
ES58x devices report below product information through a custom usb
string:
* the firmware version
* the bootloader version
* the hardware revision
Parse this string, store the results in struct es58x_dev, export:
* the firmware version through devlink's "fw" name
* the bootloader version through devlink's "fw.bootloader" name
* the hardware revisionthrough devlink's "board.rev" name
Those devlink entries are not critical to use the device, if parsing
fails, print an informative log message and continue to probe the
device.
In addition to that, use usb_device::serial to report the device
serial number.
Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/all/20221130174658.29282-6-mailhol.vincent@wanadoo.fr
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
As discussed in [1], abbreviating the bootloader to "bl" might not be
well understood. Instead, a bootloader technically being a firmware,
name it "fw.bootloader".
Add a new macro to devlink.h to formalize this new info attribute name
and update the documentation.
[1] https://lore.kernel.org/netdev/20221128142723.2f826d20@kernel.org/
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Link: https://lore.kernel.org/all/20221130174658.29282-5-mailhol.vincent@wanadoo.fr
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Convert platform_get_resource(), devm_ioremap_resource() to a single
call to devm_platform_get_and_ioremap_resource(), as this is exactly
what this function does.
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Minghao Chi <chi.minghao@zte.com.cn>
Link: https://lore.kernel.org/all/202211111443005202576@zte.com.cn
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
usb_cache_string() can also be useful for the drivers so export it.
Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/all/20221130174658.29282-4-mailhol.vincent@wanadoo.fr
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
The CANFD block on the RZ/Five SoC is identical to one found on the
RZ/G2UL SoC. "renesas,r9a07g043-canfd" compatible string will be used
on the RZ/Five SoC so to make this clear, update the comment to include
RZ/Five SoC.
No driver changes are required as generic compatible string
"renesas,rzg2l-canfd" will be used as a fallback on RZ/Five SoC.
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/all/20221115123811.1182922-1-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Add support for devlink port which extends the devlink support to the
network interface level. For now, the etas_es58x driver will only rely
on the default features that devlink port has to offer and not
implement additional feature ones.
Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Link: https://lore.kernel.org/all/20221130174658.29282-3-mailhol.vincent@wanadoo.fr
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Add basic support for devlink at the device level. The callbacks of
struct devlink_ops will be implemented next.
Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Link: https://lore.kernel.org/all/20221130174658.29282-2-mailhol.vincent@wanadoo.fr
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
IMX93 do not contain a GPR to config the stop mode, it will set
the flexcan into stop mode automatically once the ARM core go
into low power mode (WFI instruct) and gate off the flexcan
related clock automatically. But to let these logic work as
expect, before ARM core go into low power mode, need to make
sure the flexcan related clock keep on.
To support stop mode and wakeup feature on imx93, this patch
add a new fsl_imx93_devtype_data to separate from imx8mp.
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Link: https://lore.kernel.org/all/1669116752-4260-1-git-send-email-haibo.chen@nxp.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Follow the best practices, reorder the includes.
While doing so, bump up copyright year of each modified files.
Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Link: https://lore.kernel.org/all/20221126160525.87036-1-mailhol.vincent@wanadoo.fr
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Since commit 0166dc11be ("of: make CONFIG_OF user selectable"), it
is possible to test-build any driver which depends on OF on any
architecture by explicitly selecting OF. Therefore depending on
COMPILE_TEST as an alternative is no longer needed.
It is actually better to always build such drivers with OF enabled,
so that the test builds are closer to how each driver will actually be
built on its intended target. Building them without OF may not test
much as the compiler will optimize out potentially large parts of the
code. In the worst case, this could even pop false positive warnings.
Dropping COMPILE_TEST here improves the quality of our testing and
avoids wasting time on non-existent issues.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Pavel Pisa <pisa@cmp.felk.cvut.cz>
Cc: Ondrej Ille <ondrej.ille@gmail.com>
Acked-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
Link: https://lore.kernel.org/all/20221124141604.4265225f@endymion.delvare
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Biju Das <biju.das.jz@bp.renesas.com> says:
The CAN FD IP found on RZ/G2L SoC has some HW features different to
that of R-Car. For example, it has multiple resets, dedicated channel
tx and error interrupts, separate global rx and error interrupts
compared to shared irq for R-Car. it does not s ECC error flag
registers and clk post divider present on R-Car.
Similarly, R-Car V3U has 8 channels whereas other SoCs has only 2
channels. Currently all the HW differences are handled by comparing
with chip_id enum.
This patch series aims to replace chip_id with struct
rcar_canfd_hw_info to handle the HW feature differences and driver
data present on both IPs.
The changes are trivial and tested on RZ/G2L SMARC EVK.
This patch series depend upon [1].
[1] https://lore.kernel.org/all/20221025155657.1426948-1-biju.das.jz@bp.renesas.com
changes since v2: https://lore.kernel.org/all/20221026131732.1843105-1-biju.das.jz@bp.renesas.com
* Replaced data type of max_channels from unsigned int->u8 to save memory.
* Replaced data type of postdiv from unsigned int->u8 to save memory.
changes since v1: https://lore.kernel.org/all/20221022104357.1276740-1-biju.das.jz@bp.renesas.com
* Updated commit description for R-Car V3U SoC detection using
driver data.
* Replaced data type of max_channels from u32->unsigned int.
* Replaced multi_global_irqs->shared_global_irqs to make it
positive checks.
* Replaced clk_postdiv->postdiv driver data variable.
* Simplified the calcualtion for fcan_freq.
* Replaced info->has_gerfl to gpriv->info->has_gerfl and wrapped
the ECC error flag checks inside a single if statement.
* Added Rb tag from Geert patch#1,#2,#3 and #5
Link: https://lore.kernel.org/all/20221027082158.95895-1-biju.das.jz@bp.renesas.com
[mkl: only take patches 1...5 to avoid merge conflict]
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
RZ/G2L has separate IRQ lines for tx and error interrupt for each
channel whereas R-Car has a combined IRQ line for all the channel
specific tx and error interrupts.
Add multi_channel_irqs to struct rcar_canfd_hw_info to select the
driver to choose between combined and separate irq registration for
channel interrupts. This patch also removes enum rcanfd_chip_id and
chip_id from both struct rcar_canfd_hw_info, as it is unused.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/all/20221027082158.95895-6-biju.das.jz@bp.renesas.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
R-Car has a clock divider for CAN FD clock within the IP, whereas
it is not available on RZ/G2L.
Add postdiv variable to struct rcar_canfd_hw_info to take care of this
difference.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/all/20221027082158.95895-5-biju.das.jz@bp.renesas.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
RZ/G2L has separate IRQ lines for receive FIFO and global error interrupt
whereas R-Car has shared IRQ line.
Add shared_global_irqs to struct rcar_canfd_hw_info to select the driver to
choose between shared and separate irq registration for global
interrupts.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/all/20221027082158.95895-4-biju.das.jz@bp.renesas.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
R-Car V3U supports a maximum of 8 channels whereas rest of the SoCs
support 2 channels.
Add max_channels variable to struct rcar_canfd_hw_info to handle this
difference.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/all/20221027082158.95895-3-biju.das.jz@bp.renesas.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
The CAN FD IP found on RZ/G2L SoC has some HW features different to that
of R-Car. For example, it has multiple resets and multiple IRQs for global
and channel interrupts. Also, it does not have ECC error flag registers
and clk post divider present on R-Car. Similarly, R-Car V3U has 8 channels
whereas other SoCs has only 2 channels.
This patch adds the struct rcar_canfd_hw_info to take care of the
HW feature differences and driver data present on both IPs. It also
replaces the driver data chip type with struct rcar_canfd_hw_info by
moving chip type to it.
Whilst started using driver data instead of chip_id for detecting
R-Car V3U SoCs.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/all/20221027082158.95895-2-biju.das.jz@bp.renesas.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
The variable err is initialized, but the initialized value is
Overwritten before it is read. Fix the warning by not initializing the
variable err at all.
Fixes: 39d3df6b0e ("can: kvaser_usb: Compare requested bittiming parameters with actual parameters in do_set_{,data}_bittiming")
Cc: Jimmy Assarsson <extja@kvaser.com>
Cc: Anssi Hannula <anssi.hannula@bitwise.fi>
Link: https://lore.kernel.org/all/20221031114513.81214-1-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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Merge tag 'ipsec-next-2022-12-09' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next
Steffen Klassert says:
====================
ipsec-next 2022-12-09
1) Add xfrm packet offload core API.
From Leon Romanovsky.
2) Add xfrm packet offload support for mlx5.
From Leon Romanovsky and Raed Salem.
3) Fix a typto in a error message.
From Colin Ian King.
* tag 'ipsec-next-2022-12-09' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next: (38 commits)
xfrm: Fix spelling mistake "oflload" -> "offload"
net/mlx5e: Open mlx5 driver to accept IPsec packet offload
net/mlx5e: Handle ESN update events
net/mlx5e: Handle hardware IPsec limits events
net/mlx5e: Update IPsec soft and hard limits
net/mlx5e: Store all XFRM SAs in Xarray
net/mlx5e: Provide intermediate pointer to access IPsec struct
net/mlx5e: Skip IPsec encryption for TX path without matching policy
net/mlx5e: Add statistics for Rx/Tx IPsec offloaded flows
net/mlx5e: Improve IPsec flow steering autogroup
net/mlx5e: Configure IPsec packet offload flow steering
net/mlx5e: Use same coding pattern for Rx and Tx flows
net/mlx5e: Add XFRM policy offload logic
net/mlx5e: Create IPsec policy offload tables
net/mlx5e: Generalize creation of default IPsec miss group and rule
net/mlx5e: Group IPsec miss handles into separate struct
net/mlx5e: Make clear what IPsec rx_err does
net/mlx5e: Flatten the IPsec RX add rule path
net/mlx5e: Refactor FTE setup code to be more clear
net/mlx5e: Move IPsec flow table creation to separate function
...
====================
Link: https://lore.kernel.org/r/20221209093310.4018731-1-steffen.klassert@secunet.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
When the resource size changes, the return value of the
'nla_put_u64_64bit' function is not checked. That has been fixed to avoid
rechecking at the next step.
Found by InfoTeCS on behalf of Linux Verification Center
(linuxtesting.org) with SVACE.
Note that this is harmless, we'd error out at the next put().
Signed-off-by: Ilia.Gavrilov <Ilia.Gavrilov@infotecs.ru>
Link: https://lore.kernel.org/r/20221208082821.3927937-1-Ilia.Gavrilov@infotecs.ru
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
syzkaller reported:
BUG: KASAN: slab-out-of-bounds in __build_skb_around+0x235/0x340 net/core/skbuff.c:294
Write of size 32 at addr ffff88802aa172c0 by task syz-executor413/5295
For bpf_prog_test_run_skb(), which uses a kmalloc()ed buffer passed to
build_skb().
When build_skb() is passed a frag_size of 0, it means the buffer came
from kmalloc. In these cases, ksize() is used to find its actual size,
but since the allocation may not have been made to that size, actually
perform the krealloc() call so that all the associated buffer size
checking will be correctly notified (and use the "new" pointer so that
compiler hinting works correctly). Split this logic out into a new
interface, slab_build_skb(), but leave the original 0 checking for now
to catch any stragglers.
Reported-by: syzbot+fda18eaa8c12534ccb3b@syzkaller.appspotmail.com
Link: https://groups.google.com/g/syzkaller-bugs/c/UnIKxTtU5-0/m/-wbXinkgAQAJ
Fixes: 38931d8989 ("mm: Make ksize() a reporting-only function")
Cc: Pavel Begunkov <asml.silence@gmail.com>
Cc: pepsipu <soopthegoop@gmail.com>
Cc: syzbot+fda18eaa8c12534ccb3b@syzkaller.appspotmail.com
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: kasan-dev <kasan-dev@googlegroups.com>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: ast@kernel.org
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Hao Luo <haoluo@google.com>
Cc: Jesper Dangaard Brouer <hawk@kernel.org>
Cc: John Fastabend <john.fastabend@gmail.com>
Cc: jolsa@kernel.org
Cc: KP Singh <kpsingh@kernel.org>
Cc: martin.lau@linux.dev
Cc: Stanislav Fomichev <sdf@google.com>
Cc: song@kernel.org
Cc: Yonghong Song <yhs@fb.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20221208060256.give.994-kees@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The function dmadesc_get_addr() is defined in the bcmgenet.c file, but
not called elsewhere, so remove this unused function.
drivers/net/ethernet/broadcom/genet/bcmgenet.c:120:26: warning: unused function 'dmadesc_get_addr'.
Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=3401
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Link: https://lore.kernel.org/r/20221209033723.32452-1-jiapeng.chong@linux.alibaba.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Mat Martineau says:
====================
mptcp: Miscellaneous cleanup
Two code cleanup patches for the 6.2 merge window that don't change
behavior:
Patch 1 makes proper use of nlmsg_free(), as suggested by Jakub while
reviewing f8c9dfbd87 ("mptcp: add pm listener events").
Patch 2 clarifies success status in a few mptcp functions, which
prevents some smatch false positives.
====================
Link: https://lore.kernel.org/r/20221209004431.143701-1-mathew.j.martineau@linux.intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
When 'err' is 0, it looks clearer to return '0' instead of the variable
called 'err'.
The behaviour is then not modified, just a clearer code.
By doing this, we can also avoid false positive smatch warnings like
this one:
net/mptcp/pm_netlink.c:1169 mptcp_pm_parse_pm_addr_attr() warn: missing error code? 'err'
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <error27@gmail.com>
Suggested-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Use nlmsg_free() instead of kfree_skb() in pm_netlink.c.
The SKB's have been created by nlmsg_new(). The proper cleaning way
should then be done with nlmsg_free().
For the moment, nlmsg_free() is simply calling kfree_skb() so we don't
change the behaviour here.
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Geliang Tang <geliang.tang@suse.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Marc Kleine-Budde