| Commit message (Collapse) | Author | Age | Files | Lines |
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Explicitly uses a 64-bit constant when the number of bits used for its
shifting is 32 (which is the case for PC CAN FD interfaces supported by
this driver).
Signed-off-by: Stéphane Grosjean <[email protected]>
Link: https://patch.msgid.link/[email protected]
Reported-by: Marc Kleine-Budde <[email protected]>
Closes: https://lore.kernel.org/[email protected]
Fixes: bb4785551f64 ("can: usb: PEAK-System Technik USB adapters driver core")
[mkl: update subject, apply manually]
Signed-off-by: Marc Kleine-Budde <[email protected]>
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Sending an PF_PACKET allows to bypass the CAN framework logic and to
directly reach the xmit() function of a CAN driver. The only check
which is performed by the PF_PACKET framework is to make sure that
skb->len fits the interface's MTU.
Unfortunately, because the mcba_usb driver does not populate its
net_device_ops->ndo_change_mtu(), it is possible for an attacker to
configure an invalid MTU by doing, for example:
$ ip link set can0 mtu 9999
After doing so, the attacker could open a PF_PACKET socket using the
ETH_P_CANXL protocol:
socket(PF_PACKET, SOCK_RAW, htons(ETH_P_CANXL))
to inject a malicious CAN XL frames. For example:
struct canxl_frame frame = {
.flags = 0xff,
.len = 2048,
};
The CAN drivers' xmit() function are calling can_dev_dropped_skb() to
check that the skb is valid, unfortunately under above conditions, the
malicious packet is able to go through can_dev_dropped_skb() checks:
1. the skb->protocol is set to ETH_P_CANXL which is valid (the
function does not check the actual device capabilities).
2. the length is a valid CAN XL length.
And so, mcba_usb_start_xmit() receives a CAN XL frame which it is not
able to correctly handle and will thus misinterpret it as a CAN frame.
This can result in a buffer overflow. The driver will consume cf->len
as-is with no further checks on these lines:
usb_msg.dlc = cf->len;
memcpy(usb_msg.data, cf->data, usb_msg.dlc);
Here, cf->len corresponds to the flags field of the CAN XL frame. In
our previous example, we set canxl_frame->flags to 0xff. Because the
maximum expected length is 8, a buffer overflow of 247 bytes occurs!
Populate net_device_ops->ndo_change_mtu() to ensure that the
interface's MTU can not be set to anything bigger than CAN_MTU. By
fixing the root cause, this prevents the buffer overflow.
Fixes: 51f3baad7de9 ("can: mcba_usb: Add support for Microchip CAN BUS Analyzer")
Signed-off-by: Vincent Mailhol <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Marc Kleine-Budde <[email protected]>
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Sending an PF_PACKET allows to bypass the CAN framework logic and to
directly reach the xmit() function of a CAN driver. The only check
which is performed by the PF_PACKET framework is to make sure that
skb->len fits the interface's MTU.
Unfortunately, because the sun4i_can driver does not populate its
net_device_ops->ndo_change_mtu(), it is possible for an attacker to
configure an invalid MTU by doing, for example:
$ ip link set can0 mtu 9999
After doing so, the attacker could open a PF_PACKET socket using the
ETH_P_CANXL protocol:
socket(PF_PACKET, SOCK_RAW, htons(ETH_P_CANXL))
to inject a malicious CAN XL frames. For example:
struct canxl_frame frame = {
.flags = 0xff,
.len = 2048,
};
The CAN drivers' xmit() function are calling can_dev_dropped_skb() to
check that the skb is valid, unfortunately under above conditions, the
malicious packet is able to go through can_dev_dropped_skb() checks:
1. the skb->protocol is set to ETH_P_CANXL which is valid (the
function does not check the actual device capabilities).
2. the length is a valid CAN XL length.
And so, sun4ican_start_xmit() receives a CAN XL frame which it is not
able to correctly handle and will thus misinterpret it as a CAN frame.
This can result in a buffer overflow. The driver will consume cf->len
as-is with no further checks on this line:
dlc = cf->len;
Here, cf->len corresponds to the flags field of the CAN XL frame. In
our previous example, we set canxl_frame->flags to 0xff. Because the
maximum expected length is 8, a buffer overflow of 247 bytes occurs a
couple line below when doing:
for (i = 0; i < dlc; i++)
writel(cf->data[i], priv->base + (dreg + i * 4));
Populate net_device_ops->ndo_change_mtu() to ensure that the
interface's MTU can not be set to anything bigger than CAN_MTU. By
fixing the root cause, this prevents the buffer overflow.
Fixes: 0738eff14d81 ("can: Allwinner A10/A20 CAN Controller support - Kernel module")
Signed-off-by: Vincent Mailhol <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Marc Kleine-Budde <[email protected]>
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Sending an PF_PACKET allows to bypass the CAN framework logic and to
directly reach the xmit() function of a CAN driver. The only check
which is performed by the PF_PACKET framework is to make sure that
skb->len fits the interface's MTU.
Unfortunately, because the sun4i_can driver does not populate its
net_device_ops->ndo_change_mtu(), it is possible for an attacker to
configure an invalid MTU by doing, for example:
$ ip link set can0 mtu 9999
After doing so, the attacker could open a PF_PACKET socket using the
ETH_P_CANXL protocol:
socket(PF_PACKET, SOCK_RAW, htons(ETH_P_CANXL))
to inject a malicious CAN XL frames. For example:
struct canxl_frame frame = {
.flags = 0xff,
.len = 2048,
};
The CAN drivers' xmit() function are calling can_dev_dropped_skb() to
check that the skb is valid, unfortunately under above conditions, the
malicious packet is able to go through can_dev_dropped_skb() checks:
1. the skb->protocol is set to ETH_P_CANXL which is valid (the
function does not check the actual device capabilities).
2. the length is a valid CAN XL length.
And so, hi3110_hard_start_xmit() receives a CAN XL frame which it is
not able to correctly handle and will thus misinterpret it as a CAN
frame. The driver will consume frame->len as-is with no further
checks.
This can result in a buffer overflow later on in hi3110_hw_tx() on
this line:
memcpy(buf + HI3110_FIFO_EXT_DATA_OFF,
frame->data, frame->len);
Here, frame->len corresponds to the flags field of the CAN XL frame.
In our previous example, we set canxl_frame->flags to 0xff. Because
the maximum expected length is 8, a buffer overflow of 247 bytes
occurs!
Populate net_device_ops->ndo_change_mtu() to ensure that the
interface's MTU can not be set to anything bigger than CAN_MTU. By
fixing the root cause, this prevents the buffer overflow.
Fixes: 57e83fb9b746 ("can: hi311x: Add Holt HI-311x CAN driver")
Signed-off-by: Vincent Mailhol <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Marc Kleine-Budde <[email protected]>
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Sending an PF_PACKET allows to bypass the CAN framework logic and to
directly reach the xmit() function of a CAN driver. The only check
which is performed by the PF_PACKET framework is to make sure that
skb->len fits the interface's MTU.
Unfortunately, because the etas_es58x driver does not populate its
net_device_ops->ndo_change_mtu(), it is possible for an attacker to
configure an invalid MTU by doing, for example:
$ ip link set can0 mtu 9999
After doing so, the attacker could open a PF_PACKET socket using the
ETH_P_CANXL protocol:
socket(PF_PACKET, SOCK_RAW, htons(ETH_P_CANXL));
to inject a malicious CAN XL frames. For example:
struct canxl_frame frame = {
.flags = 0xff,
.len = 2048,
};
The CAN drivers' xmit() function are calling can_dev_dropped_skb() to
check that the skb is valid, unfortunately under above conditions, the
malicious packet is able to go through can_dev_dropped_skb() checks:
1. the skb->protocol is set to ETH_P_CANXL which is valid (the
function does not check the actual device capabilities).
2. the length is a valid CAN XL length.
And so, es58x_start_xmit() receives a CAN XL frame which it is not
able to correctly handle and will thus misinterpret it as a CAN(FD)
frame.
This can result in a buffer overflow. For example, using the es581.4
variant, the frame will be dispatched to es581_4_tx_can_msg(), go
through the last check at the beginning of this function:
if (can_is_canfd_skb(skb))
return -EMSGSIZE;
and reach this line:
memcpy(tx_can_msg->data, cf->data, cf->len);
Here, cf->len corresponds to the flags field of the CAN XL frame. In
our previous example, we set canxl_frame->flags to 0xff. Because the
maximum expected length is 8, a buffer overflow of 247 bytes occurs!
Populate net_device_ops->ndo_change_mtu() to ensure that the
interface's MTU can not be set to anything bigger than CAN_MTU or
CANFD_MTU (depending on the device capabilities). By fixing the root
cause, this prevents the buffer overflow.
Fixes: 8537257874e9 ("can: etas_es58x: add core support for ETAS ES58X CAN USB interfaces")
Signed-off-by: Vincent Mailhol <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Marc Kleine-Budde <[email protected]>
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Driver configures register to choose controller mode before
setting all channels to reset mode leading to failure.
The patch corrects operation of mode setting.
Signed-off-by: Duy Nguyen <[email protected]>
Signed-off-by: Tranh Ha <[email protected]>
Link: https://patch.msgid.link/TYWPR01MB87434739F83E27EDCD23DF44B416A@TYWPR01MB8743.jpnprd01.prod.outlook.com
Signed-off-by: Marc Kleine-Budde <[email protected]>
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interface was enabled
This issue is similar to the vulnerability in the `mcp251x` driver,
which was fixed in commit 03c427147b2d ("can: mcp251x: fix resume from
sleep before interface was brought up").
In the `hi311x` driver, when the device resumes from sleep, the driver
schedules `priv->restart_work`. However, if the network interface was
not previously enabled, the `priv->wq` (workqueue) is not allocated and
initialized, leading to a null pointer dereference.
To fix this, we move the allocation and initialization of the workqueue
from the `hi3110_open` function to the `hi3110_can_probe` function.
This ensures that the workqueue is properly initialized before it is
used during device resume. And added logic to destroy the workqueue
in the error handling paths of `hi3110_can_probe` and in the
`hi3110_can_remove` function to prevent resource leaks.
Signed-off-by: Chen Yufeng <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Marc Kleine-Budde <[email protected]>
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On R-Car Gen3 using PSCI, s2ram powers down the SoC. After resume, the
CAN interface no longer works, until it is brought down and up again.
Fix this by calling rcar_can_start() from the PM resume callback, to
fully initialize the controller instead of just restarting it.
Signed-off-by: Geert Uytterhoeven <[email protected]>
Link: https://patch.msgid.link/699b2f7fcb60b31b6f976a37f08ce99c5ffccb31.1755165227.git.geert+renesas@glider.be
Signed-off-by: Marc Kleine-Budde <[email protected]>
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can_put_echo_skb() takes ownership of the SKB and it may be freed
during or after the call.
However, xilinx_can xcan_write_frame() keeps using SKB after the call.
Fix that by only calling can_put_echo_skb() after the code is done
touching the SKB.
The tx_lock is held for the entire xcan_write_frame() execution and
also on the can_get_echo_skb() side so the order of operations does not
matter.
An earlier fix commit 3d3c817c3a40 ("can: xilinx_can: Fix usage of skb
memory") did not move the can_put_echo_skb() call far enough.
Signed-off-by: Anssi Hannula <[email protected]>
Fixes: 1598efe57b3e ("can: xilinx_can: refactor code in preparation for CAN FD support")
Link: https://patch.msgid.link/[email protected]
[mkl: add "commit" in front of sha1 in patch description]
[mkl: fix indention]
Signed-off-by: Marc Kleine-Budde <[email protected]>
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The conversion of all GPIO drivers to using the .set_rv() and
.set_multiple_rv() callbacks from struct gpio_chip (which - unlike their
predecessors - return an integer and allow the controller drivers to
indicate failures to users) is now complete and the legacy ones have
been removed. Rename the new callbacks back to their original names in
one sweeping change.
Signed-off-by: Bartosz Golaszewski <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski:
"Core & protocols:
- Wrap datapath globals into net_aligned_data, to avoid false sharing
- Preserve MSG_ZEROCOPY in forwarding (e.g. out of a container)
- Add SO_INQ and SCM_INQ support to AF_UNIX
- Add SIOCINQ support to AF_VSOCK
- Add TCP_MAXSEG sockopt to MPTCP
- Add IPv6 force_forwarding sysctl to enable forwarding per interface
- Make TCP validation of whether packet fully fits in the receive
window and the rcv_buf more strict. With increased use of HW
aggregation a single "packet" can be multiple 100s of kB
- Add MSG_MORE flag to optimize large TCP transmissions via sockmap,
improves latency up to 33% for sockmap users
- Convert TCP send queue handling from tasklet to BH workque
- Improve BPF iteration over TCP sockets to see each socket exactly
once
- Remove obsolete and unused TCP RFC3517/RFC6675 loss recovery code
- Support enabling kernel threads for NAPI processing on per-NAPI
instance basis rather than a whole device. Fully stop the kernel
NAPI thread when threaded NAPI gets disabled. Previously thread
would stick around until ifdown due to tricky synchronization
- Allow multicast routing to take effect on locally-generated packets
- Add output interface argument for End.X in segment routing
- MCTP: add support for gateway routing, improve bind() handling
- Don't require rtnl_lock when fetching an IPv6 neighbor over Netlink
- Add a new neighbor flag ("extern_valid"), which cedes refresh
responsibilities to userspace. This is needed for EVPN multi-homing
where a neighbor entry for a multi-homed host needs to be synced
across all the VTEPs among which the host is multi-homed
- Support NUD_PERMANENT for proxy neighbor entries
- Add a new queuing discipline for IETF RFC9332 DualQ Coupled AQM
- Add sequence numbers to netconsole messages. Unregister
netconsole's console when all net targets are removed. Code
refactoring. Add a number of selftests
- Align IPSec inbound SA lookup to RFC 4301. Only SPI and protocol
should be used for an inbound SA lookup
- Support inspecting ref_tracker state via DebugFS
- Don't force bonding advertisement frames tx to ~333 ms boundaries.
Add broadcast_neighbor option to send ARP/ND on all bonded links
- Allow providing upcall pid for the 'execute' command in openvswitch
- Remove DCCP support from Netfilter's conntrack
- Disallow multiple packet duplications in the queuing layer
- Prevent use of deprecated iptables code on PREEMPT_RT
Driver API:
- Support RSS and hashing configuration over ethtool Netlink
- Add dedicated ethtool callbacks for getting and setting hashing
fields
- Add support for power budget evaluation strategy in PSE /
Power-over-Ethernet. Generate Netlink events for overcurrent etc
- Support DPLL phase offset monitoring across all device inputs.
Support providing clock reference and SYNC over separate DPLL
inputs
- Support traffic classes in devlink rate API for bandwidth
management
- Remove rtnl_lock dependency from UDP tunnel port configuration
Device drivers:
- Add a new Broadcom driver for 800G Ethernet (bnge)
- Add a standalone driver for Microchip ZL3073x DPLL
- Remove IBM's NETIUCV device driver
- Ethernet high-speed NICs:
- Broadcom (bnxt):
- support zero-copy Tx of DMABUF memory
- take page size into account for page pool recycling rings
- Intel (100G, ice, idpf):
- idpf: XDP and AF_XDP support preparations
- idpf: add flow steering
- add link_down_events statistic
- clean up the TSPLL code
- preparations for live VM migration
- nVidia/Mellanox:
- support zero-copy Rx/Tx interfaces (DMABUF and io_uring)
- optimize context memory usage for matchers
- expose serial numbers in devlink info
- support PCIe congestion metrics
- Meta (fbnic):
- add 25G, 50G, and 100G link modes to phylink
- support dumping FW logs
- Marvell/Cavium:
- support for CN20K generation of the Octeon chips
- Amazon:
- add HW clock (without timestamping, just hypervisor time access)
- Ethernet virtual:
- VirtIO net:
- support segmentation of UDP-tunnel-encapsulated packets
- Google (gve):
- support packet timestamping and clock synchronization
- Microsoft vNIC:
- add handler for device-originated servicing events
- allow dynamic MSI-X vector allocation
- support Tx bandwidth clamping
- Ethernet NICs consumer, and embedded:
- AMD:
- amd-xgbe: hardware timestamping and PTP clock support
- Broadcom integrated MACs (bcmgenet, bcmasp):
- use napi_complete_done() return value to support NAPI polling
- add support for re-starting auto-negotiation
- Broadcom switches (b53):
- support BCM5325 switches
- add bcm63xx EPHY power control
- Synopsys (stmmac):
- lots of code refactoring and cleanups
- TI:
- icssg-prueth: read firmware-names from device tree
- icssg: PRP offload support
- Microchip:
- lan78xx: convert to PHYLINK for improved PHY and MAC management
- ksz: add KSZ8463 switch support
- Intel:
- support similar queue priority scheme in multi-queue and
time-sensitive networking (taprio)
- support packet pre-emption in both
- RealTek (r8169):
- enable EEE at 5Gbps on RTL8126
- Airoha:
- add PPPoE offload support
- MDIO bus controller for Airoha AN7583
- Ethernet PHYs:
- support for the IPQ5018 internal GE PHY
- micrel KSZ9477 switch-integrated PHYs:
- add MDI/MDI-X control support
- add RX error counters
- add cable test support
- add Signal Quality Indicator (SQI) reporting
- dp83tg720: improve reset handling and reduce link recovery time
- support bcm54811 (and its MII-Lite interface type)
- air_en8811h: support resume/suspend
- support PHY counters for QCA807x and QCA808x
- support WoL for QCA807x
- CAN drivers:
- rcar_canfd: support for Transceiver Delay Compensation
- kvaser: report FW versions via devlink dev info
- WiFi:
- extended regulatory info support (6 GHz)
- add statistics and beacon monitor for Multi-Link Operation (MLO)
- support S1G aggregation, improve S1G support
- add Radio Measurement action fields
- support per-radio RTS threshold
- some work around how FIPS affects wifi, which was wrong (RC4 is
used by TKIP, not only WEP)
- improvements for unsolicited probe response handling
- WiFi drivers:
- RealTek (rtw88):
- IBSS mode for SDIO devices
- RealTek (rtw89):
- BT coexistence for MLO/WiFi7
- concurrent station + P2P support
- support for USB devices RTL8851BU/RTL8852BU
- Intel (iwlwifi):
- use embedded PNVM in (to be released) FW images to fix
compatibility issues
- many cleanups (unused FW APIs, PCIe code, WoWLAN)
- some FIPS interoperability
- MediaTek (mt76):
- firmware recovery improvements
- more MLO work
- Qualcomm/Atheros (ath12k):
- fix scan on multi-radio devices
- more EHT/Wi-Fi 7 features
- encapsulation/decapsulation offload
- Broadcom (brcm80211):
- support SDIO 43751 device
- Bluetooth:
- hci_event: add support for handling LE BIG Sync Lost event
- ISO: add socket option to report packet seqnum via CMSG
- ISO: support SCM_TIMESTAMPING for ISO TS
- Bluetooth drivers:
- intel_pcie: support Function Level Reset
- nxpuart: add support for 4M baudrate
- nxpuart: implement powerup sequence, reset, FW dump, and FW loading"
* tag 'net-next-6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1742 commits)
dpll: zl3073x: Fix build failure
selftests: bpf: fix legacy netfilter options
ipv6: annotate data-races around rt->fib6_nsiblings
ipv6: fix possible infinite loop in fib6_info_uses_dev()
ipv6: prevent infinite loop in rt6_nlmsg_size()
ipv6: add a retry logic in net6_rt_notify()
vrf: Drop existing dst reference in vrf_ip6_input_dst
net/sched: taprio: align entry index attr validation with mqprio
net: fsl_pq_mdio: use dev_err_probe
selftests: rtnetlink.sh: remove esp4_offload after test
vsock: remove unnecessary null check in vsock_getname()
igb: xsk: solve negative overflow of nb_pkts in zerocopy mode
stmmac: xsk: fix negative overflow of budget in zerocopy mode
dt-bindings: ieee802154: Convert at86rf230.txt yaml format
net: dsa: microchip: Disable PTP function of KSZ8463
net: dsa: microchip: Setup fiber ports for KSZ8463
net: dsa: microchip: Write switch MAC address differently for KSZ8463
net: dsa: microchip: Use different registers for KSZ8463
net: dsa: microchip: Add KSZ8463 switch support to KSZ DSA driver
dt-bindings: net: dsa: microchip: Add KSZ8463 switch support
...
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Merge in late fixes to prepare for the 6.17 net-next PR.
Conflicts:
net/core/neighbour.c
1bbb76a89948 ("neighbour: Fix null-ptr-deref in neigh_flush_dev().")
13a936bb99fb ("neighbour: Protect tbl->phash_buckets[] with a dedicated mutex.")
03dc03fa0432 ("neighbor: Add NTF_EXT_VALIDATED flag for externally validated entries")
Adjacent changes:
drivers/net/usb/usbnet.c
0d9cfc9b8cb1 ("net: usbnet: Avoid potential RCU stall on LINK_CHANGE event")
2c04d279e857 ("net: usb: Convert tasklet API to new bottom half workqueue mechanism")
net/ipv6/route.c
31d7d67ba127 ("ipv6: annotate data-races around rt->fib6_nsiblings")
1caf27297215 ("ipv6: adopt dst_dev() helper")
3b3ccf9ed05e ("net: Remove unnecessary NULL check for lwtunnel_fill_encap()")
Signed-off-by: Jakub Kicinski <[email protected]>
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The latest firmware versions of USB CAN FD interfaces export the EP numbers
to be used to dialog with the device via the "type" field of a response to
a vendor request structure, particularly when its value is greater than or
equal to 2.
Correct the driver's test of this field.
Fixes: 4f232482467a ("can: peak_usb: include support for a new MCU")
Signed-off-by: Stephane Grosjean <[email protected]>
Link: https://patch.msgid.link/[email protected]
Reviewed-by: Vincent Mailhol <[email protected]>
[mkl: rephrase commit message]
Signed-off-by: Marc Kleine-Budde <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next
Marc Kleine-Budde says:
====================
pull-request: can-next 2025-07-25
The first patch is by Khaled Elnaggar and converts the janz-ican3
driver's fwinfo_show() to sysfs_emit().
Vincent Mailhol contributes 3 patches that first fix a warning in the
ti_hecc driver and then add missing COMPILE_TEST more compile
coverage to the ti_hecc and tscan1 driver.
Randy Dunlap's patch let's the tscan1 driver depend on PC104.
A patch by Luis Felipe Hernandez fixes a kernel-doc error in the
ctucanfd driver.
Jimmy Assarsson contributes 10 patches for the kvaser_pciefd and 11
for the kvaser_usb driver. Both series simplify the identification of
physical the CAN interfaces and add devlink support to get information
about the running firmware.
* tag 'linux-can-next-for-6.17-20250725' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next: (27 commits)
Documentation: devlink: add devlink documentation for the kvaser_usb driver
can: kvaser_usb: Add devlink port support
can: kvaser_usb: Expose device information via devlink info_get()
can: kvaser_usb: Add devlink support
can: kvaser_usb: Store additional device information
can: kvaser_usb: Store the different firmware version components in a struct
can: kvaser_usb: Move comment regarding max_tx_urbs
can: kvaser_usb: Add intermediate variables
can: kvaser_usb: Assign netdev.dev_port based on device channel index
can: kvaser_usb: Add support for ethtool set_phys_id()
can: kvaser_usb: Add support to control CAN LEDs on device
Documentation: devlink: add devlink documentation for the kvaser_pciefd driver
can: kvaser_pciefd: Add devlink port support
can: kvaser_pciefd: Expose device firmware version via devlink info_get()
can: kvaser_pciefd: Add devlink support
can: kvaser_pciefd: Split driver into C-file and header-file.
can: kvaser_pciefd: Store device channel index
can: kvaser_pciefd: Store the different firmware version components in a struct
can: kvaser_pciefd: Add intermediate variable for device struct in probe()
can: kvaser_pciefd: Add support for ethtool set_phys_id()
...
====================
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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Register each CAN channel of the device as an devlink physical port.
This makes it easier to get device information for a given network
interface (i.e. can2).
Example output:
$ devlink dev
usb/1-1.3:1.0
$ devlink port
usb/1-1.3:1.0/0: type eth netdev can0 flavour physical port 0 splittable false
usb/1-1.3:1.0/1: type eth netdev can1 flavour physical port 1 splittable false
$ devlink port show can1
usb/1-1.3:1.0/1: type eth netdev can1 flavour physical port 0 splittable false
$ devlink dev info
usb/1-1.3:1.0:
driver kvaser_usb
serial_number 1020
versions:
fixed:
board.rev 1
board.id 7330130009653
running:
fw 3.22.527
$ ethtool -i can1
driver: kvaser_usb
version: 6.12.10-arch1-1
firmware-version: 3.22.527
expansion-rom-version:
bus-info: 1-1.3:1.0
supports-statistics: no
supports-test: no
supports-eeprom-access: no
supports-register-dump: no
supports-priv-flags: no
Reviewed-by: Vincent Mailhol <[email protected]>
Signed-off-by: Jimmy Assarsson <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Marc Kleine-Budde <[email protected]>
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Expose device information via devlink info_get():
* Serial number
* Firmware version
* Hardware revision
* EAN (product number)
Example output:
$ devlink dev
usb/1-1.2:1.0
$ devlink dev info
usb/1-1.2:1.0:
driver kvaser_usb
serial_number 1020
versions:
fixed:
board.rev 1
board.id 7330130009653
running:
fw 3.22.527
Reviewed-by: Vincent Mailhol <[email protected]>
Signed-off-by: Jimmy Assarsson <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Marc Kleine-Budde <[email protected]>
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Add devlink support at device level.
Example output:
$ devlink dev
usb/1-1.3:1.0
$ devlink dev info
usb/1-1.3:1.0:
driver kvaser_usb
Reviewed-by: Vincent Mailhol <[email protected]>
Signed-off-by: Jimmy Assarsson <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Marc Kleine-Budde <[email protected]>
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Store additional device information; EAN (product number), serial_number
and hardware revision.
Reviewed-by: Vincent Mailhol <[email protected]>
Signed-off-by: Jimmy Assarsson <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Marc Kleine-Budde <[email protected]>
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Store firmware version in kvaser_usb_fw_version struct, specifying the
different components of the version number.
And drop debug prinout of firmware version, since later patches will expose
it via the devlink interface.
Reviewed-by: Vincent Mailhol <[email protected]>
Signed-off-by: Jimmy Assarsson <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Marc Kleine-Budde <[email protected]>
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Move comment regarding max_tx_urbs, to where the struct member is declared.
Reviewed-by: Vincent Mailhol <[email protected]>
Signed-off-by: Jimmy Assarsson <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Marc Kleine-Budde <[email protected]>
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Add intermediate variables, for readability and to simplify future patches.
Reviewed-by: Vincent Mailhol <[email protected]>
Signed-off-by: Jimmy Assarsson <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Marc Kleine-Budde <[email protected]>
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Assign netdev.dev_port based on the device channel index, to indicate the
port number of the network device.
While this driver already uses netdev.dev_id for that purpose, dev_port is
more appropriate. However, retain dev_id to avoid potential regressions.
Fixes: 3e66d0138c05 ("can: populate netdev::dev_id for udev discrimination")
Reviewed-by: Vincent Mailhol <[email protected]>
Signed-off-by: Jimmy Assarsson <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Marc Kleine-Budde <[email protected]>
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Add support for ethtool set_phys_id(), to physically locate devices by
flashing a LED on the device.
Reviewed-by: Vincent Mailhol <[email protected]>
Signed-off-by: Jimmy Assarsson <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Marc Kleine-Budde <[email protected]>
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Add support to turn on/off CAN LEDs on device.
Reviewed-by: Vincent Mailhol <[email protected]>
Signed-off-by: Jimmy Assarsson <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Marc Kleine-Budde <[email protected]>
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Register each CAN channel of the device as an devlink physical port.
This makes it easier to get device information for a given network
interface (i.e. can2).
Example output:
$ devlink dev
pci/0000:07:00.0
pci/0000:08:00.0
pci/0000:09:00.0
$ devlink port
pci/0000:07:00.0/0: type eth netdev can0 flavour physical port 0 splittable false
pci/0000:07:00.0/1: type eth netdev can1 flavour physical port 1 splittable false
pci/0000:07:00.0/2: type eth netdev can2 flavour physical port 2 splittable false
pci/0000:07:00.0/3: type eth netdev can3 flavour physical port 3 splittable false
pci/0000:08:00.0/0: type eth netdev can4 flavour physical port 0 splittable false
pci/0000:08:00.0/1: type eth netdev can5 flavour physical port 1 splittable false
pci/0000:09:00.0/0: type eth netdev can6 flavour physical port 0 splittable false
pci/0000:09:00.0/1: type eth netdev can7 flavour physical port 1 splittable false
pci/0000:09:00.0/2: type eth netdev can8 flavour physical port 2 splittable false
pci/0000:09:00.0/3: type eth netdev can9 flavour physical port 3 splittable false
$ devlink port show can2
pci/0000:07:00.0/2: type eth netdev can2 flavour physical port 2 splittable false
$ devlink dev info
pci/0000:07:00.0:
driver kvaser_pciefd
versions:
running:
fw 1.3.75
pci/0000:08:00.0:
driver kvaser_pciefd
versions:
running:
fw 2.4.29
pci/0000:09:00.0:
driver kvaser_pciefd
versions:
running:
fw 1.3.72
$ sudo ethtool -i can2
driver: kvaser_pciefd
version: 6.8.0-40-generic
firmware-version: 1.3.75
expansion-rom-version:
bus-info: 0000:07:00.0
supports-statistics: no
supports-test: no
supports-eeprom-access: no
supports-register-dump: no
supports-priv-flags: no
Reviewed-by: Vincent Mailhol <[email protected]>
Signed-off-by: Jimmy Assarsson <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Marc Kleine-Budde <[email protected]>
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Expose device firmware version via devlink info_get().
Example output:
$ devlink dev
pci/0000:07:00.0
pci/0000:08:00.0
pci/0000:09:00.0
$ devlink dev info
pci/0000:07:00.0:
driver kvaser_pciefd
versions:
running:
fw 1.3.75
pci/0000:08:00.0:
driver kvaser_pciefd
versions:
running:
fw 2.4.29
pci/0000:09:00.0:
driver kvaser_pciefd
versions:
running:
fw 1.3.72
Reviewed-by: Vincent Mailhol <[email protected]>
Signed-off-by: Jimmy Assarsson <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Marc Kleine-Budde <[email protected]>
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Add devlink support at device level.
Example output:
$ devlink dev
pci/0000:07:00.0
pci/0000:08:00.0
pci/0000:09:00.0
$ devlink dev info
pci/0000:07:00.0:
driver kvaser_pciefd
pci/0000:08:00.0:
driver kvaser_pciefd
pci/0000:09:00.0:
driver kvaser_pciefd
Reviewed-by: Vincent Mailhol <[email protected]>
Signed-off-by: Jimmy Assarsson <[email protected]>
Link: https://patch.msgid.link/[email protected]
[mkl: kvaser_pciefd_remove(): fix use-after-free]
Signed-off-by: Marc Kleine-Budde <[email protected]>
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Split driver into C-file and header-file, to simplify future patches.
Move common definitions and declarations to a header file.
Reviewed-by: Vincent Mailhol <[email protected]>
Signed-off-by: Jimmy Assarsson <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Marc Kleine-Budde <[email protected]>
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Store device channel index in netdev.dev_port.
Fixes: 26ad340e582d ("can: kvaser_pciefd: Add driver for Kvaser PCIEcan devices")
Reviewed-by: Vincent Mailhol <[email protected]>
Signed-off-by: Jimmy Assarsson <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Marc Kleine-Budde <[email protected]>
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Store firmware version in kvaser_pciefd_fw_version struct, specifying the
different components of the version number.
And drop debug prinout of firmware version, since later patches will expose
it via the devlink interface.
Reviewed-by: Vincent Mailhol <[email protected]>
Signed-off-by: Jimmy Assarsson <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Marc Kleine-Budde <[email protected]>
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Add intermediate variable, for readability and to simplify future patches.
Reviewed-by: Vincent Mailhol <[email protected]>
Signed-off-by: Jimmy Assarsson <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Marc Kleine-Budde <[email protected]>
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Add support for ethtool set_phys_id(), to physically locate devices by
flashing a LED on the device.
Reviewed-by: Axel Forsman <[email protected]>
Reviewed-by: Vincent Mailhol <[email protected]>
Signed-off-by: Jimmy Assarsson <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Marc Kleine-Budde <[email protected]>
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Add support to turn on/off CAN LEDs on device.
Turn off all CAN LEDs in probe, since they are default on after a reset or
power on.
Reviewed-by: Axel Forsman <[email protected]>
Reviewed-by: Vincent Mailhol <[email protected]>
Signed-off-by: Jimmy Assarsson <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Marc Kleine-Budde <[email protected]>
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Fix kernel-doc formatting issue causing unexpected indentation error
in ctucanfd driver documentation build. Convert main return values
to bullet list format while preserving numbered sub-list in order to
correct indentation error and visual structure in rendered html.
Signed-off-by: Luis Felipe Hernandez <[email protected]>
Reviewed-by: Randy Dunlap <[email protected]>
Tested-by: Randy Dunlap <[email protected]>
Reviewed-by: Vincent Mailhol <[email protected]>
Reviewed-by: Pavel Pisa <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Marc Kleine-Budde <[email protected]>
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Add a dependency on PC104 to limit (restrict) this driver kconfig
prompt to kernel configs that have PC104 set.
Add COMPILE_TEST as a possibility for more complete build coverage.
I tested this build config on x86_64 5 times without problems.
Signed-off-by: Randy Dunlap <[email protected]>
Reviewed-by: Vincent Mailhol <[email protected]>
Link: https://patch.msgid.link/[email protected]
[mkl: fix conflict, remove Fixes: tag]
Signed-off-by: Marc Kleine-Budde <[email protected]>
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tscan1 depends on ISA. It also has a hidden dependency on HAS_IOPORT
as reported by the kernel test bot [1]. That dependency is implied by
ISA which explains why this was not an issue so far.
Add both COMPILE_TEST and HAS_IOPORT to the dependency list so that
this driver can also be built on other platforms.
[1] https://lore.kernel.org/linux-can/[email protected]/
Signed-off-by: Vincent Mailhol <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Marc Kleine-Budde <[email protected]>
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ti_hecc depends on ARM. Add COMPILE_TEST to the dependency list so
that this driver can also be built on other platforms.
Signed-off-by: Vincent Mailhol <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Marc Kleine-Budde <[email protected]>
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Fix below default (W=0) warning:
drivers/net/can/ti_hecc.c: In function 'ti_hecc_start':
drivers/net/can/ti_hecc.c:386:20: warning: conversion from 'long unsigned int' to 'u32' {aka 'unsigned int'} changes value from '18446744073709551599' to '4294967279' [-Woverflow]
386 | mbx_mask = ~BIT(HECC_RX_LAST_MBOX);
| ^
Signed-off-by: Vincent Mailhol <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Marc Kleine-Budde <[email protected]>
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As recommended in Documentation/filesystems/sysfs.rst, show() callbacks
should use sysfs_emit() or sysfs_emit_at() to format values returned to
userspace. Replace scnprintf() with sysfs_emit() in fwinfo_show().
Signed-off-by: Khaled Elnaggar <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Marc Kleine-Budde <[email protected]>
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Cross-merge networking fixes after downstream PR (net-6.16-rc8).
Conflicts:
drivers/net/ethernet/microsoft/mana/gdma_main.c
9669ddda18fb ("net: mana: Fix warnings for missing export.h header inclusion")
755391121038 ("net: mana: Allocate MSI-X vectors dynamically")
https://lore.kernel.org/[email protected]
Adjacent changes:
drivers/net/ethernet/ti/icssg/icssg_prueth.h
6e86fb73de0f ("net: ti: icssg-prueth: Fix buffer allocation for ICSSG")
ffe8a4909176 ("net: ti: icssg-prueth: Read firmware-names from device tree")
Signed-off-by: Jakub Kicinski <[email protected]>
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Cross-merge networking fixes after downstream PR (net-6.16-rc7).
Conflicts:
Documentation/netlink/specs/ovpn.yaml
880d43ca9aa4 ("netlink: specs: clean up spaces in brackets")
af52020fc599 ("ovpn: reject unexpected netlink attributes")
drivers/net/phy/phy_device.c
a44312d58e78 ("net: phy: Don't register LEDs for genphy")
f0f2b992d818 ("net: phy: Don't register LEDs for genphy")
https://lore.kernel.org/[email protected]
drivers/net/wireless/intel/iwlwifi/fw/regulatory.c
drivers/net/wireless/intel/iwlwifi/mld/regulatory.c
5fde0fcbd760 ("wifi: iwlwifi: mask reserved bits in chan_state_active_bitmap")
ea045a0de3b9 ("wifi: iwlwifi: add support for accepting raw DSM tables by firmware")
net/ipv6/mcast.c
ae3264a25a46 ("ipv6: mcast: Delay put pmc->idev in mld_del_delrec()")
a8594c956cc9 ("ipv6: mcast: Avoid a duplicate pointer check in mld_del_delrec()")
https://lore.kernel.org/[email protected]
No adjacent changes.
Signed-off-by: Jakub Kicinski <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next
Marc Kleine-Budde says:
====================
pull-request: can-next 2025-07-11
The first patch is by Geert Uytterhoeven and converts the rcar_can
driver to DEFINE_SIMPLE_DEV_PM_OPS.
The last patch is by Biju Das and removes unused macros from the
rcar_canfd driver.
* tag 'linux-can-next-for-6.17-20250711' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next:
can: rcar_canfd: Drop unused macros
can: rcar_can: Convert to DEFINE_SIMPLE_DEV_PM_OPS()
====================
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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Drop unused macros from the rcar_canfd.c.
Reported-by: Vincent Mailhol <[email protected]>
Closes: https://lore.kernel.org/all/[email protected]/
Signed-off-by: Biju Das <[email protected]>
Reviewed-by: Geert Uytterhoeven <[email protected]>
Reviewed-by: Vincent Mailhol <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Marc Kleine-Budde <[email protected]>
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Convert the Renesas R-Car CAN driver from SIMPLE_DEV_PM_OPS() to
DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr(). This lets us drop the
__maybe_unused annotations from its suspend and resume callbacks, and
reduces kernel size in case CONFIG_PM or CONFIG_PM_SLEEP is disabled.
Signed-off-by: Geert Uytterhoeven <[email protected]>
Link: https://patch.msgid.link/6ffe085f6e2548f53674dd11704b388cf4b303e9.1752086078.git.geert+renesas@glider.be
Signed-off-by: Marc Kleine-Budde <[email protected]>
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Cross-merge networking fixes after downstream PR (net-6.16-rc6-2).
No conflicts.
Adjacent changes:
drivers/net/wireless/mediatek/mt76/mt7925/mcu.c
c701574c5412 ("wifi: mt76: mt7925: fix invalid array index in ssid assignment during hw scan")
b3a431fe2e39 ("wifi: mt76: mt7925: fix off by one in mt7925_mcu_hw_scan()")
drivers/net/wireless/mediatek/mt76/mt7996/mac.c
62da647a2b20 ("wifi: mt76: mt7996: Add MLO support to mt7996_tx_check_aggr()")
dc66a129adf1 ("wifi: mt76: add a wrapper for wcid access with validation")
drivers/net/wireless/mediatek/mt76/mt7996/main.c
3dd6f67c669c ("wifi: mt76: Move RCU section in mt7996_mcu_add_rate_ctrl()")
8989d8e90f5f ("wifi: mt76: mt7996: Do not set wcid.sta to 1 in mt7996_mac_sta_event()")
net/mac80211/cfg.c
58fcb1b4287c ("wifi: mac80211: reject VHT opmode for unsupported channel widths")
037dc18ac3fb ("wifi: mac80211: add support for storing station S1G capabilities")
Signed-off-by: Jakub Kicinski <[email protected]>
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The rcar_canfd_f_*() inline functions to obtain channel-specific CAN-FD
register offsets really describe a memory layout. Hence replace them by
a C structure, to simplify the code, and reduce kernel size.
This also gets rid of warnings about unused rcar_canfd_f_*() inline
functions, which are reported by recent versions of clang.
Suggested-by: Vincent Mailhol <[email protected]>
Reported-by: Jakub Kicinski <[email protected]>
Closes: https://lore.kernel.org/[email protected]
Signed-off-by: Geert Uytterhoeven <[email protected]>
Acked-by: Vincent Mailhol <[email protected]>
Link: https://patch.msgid.link/292b75b3bc8dd95f805f0223f606737071c8cf86.1750327217.git.geert+renesas@glider.be
Signed-off-by: Jakub Kicinski <[email protected]>
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Cross-merge networking fixes after downstream PR (net-6.16-rc3).
No conflicts or adjacent changes.
Signed-off-by: Jakub Kicinski <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next
Marc Kleine-Budde says:
====================
pull-request: can-next 2025-06-18
All 10 patches are by Geert Uytterhoeven, target the rcar_canfd
driver, first cleanup/refactor the driver and then add support for
Transceiver Delay Compensation.
* tag 'linux-can-next-for-6.17-20250618' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next:
can: rcar_canfd: Add support for Transceiver Delay Compensation
can: rcar_canfd: Return early in rcar_canfd_set_bittiming() when not FD
can: rcar_canfd: Share config code in rcar_canfd_set_bittiming()
can: rcar_canfd: Rename rcar_canfd_setrnc() to rcar_canfd_set_rnc()
can: rcar_canfd: Repurpose f_dcfg base for other registers
can: rcar_canfd: Simplify data access in rcar_canfd_{ge,pu}t_data()
can: rcar_canfd: Add helper variable dev to rcar_canfd_reset_controller()
can: rcar_canfd: Add helper variable ndev to rcar_canfd_rx_pkt()
can: rcar_canfd: Remove bittiming debug prints
can: rcar_canfd: Consistently use ndev for net_device pointers
====================
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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The Renesas CAN-FD hardware block supports configuring Transceiver Delay
Compensation, and reading back the Transceiver Delay Compensation
Result, which is needed to support high transfer rates like 8 Mbps.
The Secondary Sample Point is either the measured delay plus the
configured offset, or just the configured offset.
Fix the existing RCANFD_FDCFG_TDCO() macro for the intended use case
(writing instead of reading the field). Add register definition bits
for the Channel n CAN-FD Status Register.
Signed-off-by: Geert Uytterhoeven <[email protected]>
Reviewed-by: Vincent Mailhol <[email protected]>
Link: https://patch.msgid.link/69db727d5f728d679ba691d20854e7d963d0f323.1749655315.git.geert+renesas@glider.be
Signed-off-by: Marc Kleine-Budde <[email protected]>
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Return early after completing all setup for non-FD mode in
rcar_canfd_set_bittiming(), to prepare for the advent of more FD-only
setup.
Signed-off-by: Geert Uytterhoeven <[email protected]>
Reviewed-by: Vincent Mailhol <[email protected]>
Link: https://patch.msgid.link/35fcdcad026cfdd0fd361637f065842d99a6c19d.1749655315.git.geert+renesas@glider.be
Signed-off-by: Marc Kleine-Budde <[email protected]>
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