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2021-04-06netfilter: nfnetlink: use net_generic infraFlorian Westphal
No need to place it in struct net, nfnetlink is a module and usage doesn't occur in fastpath. Also remove rcu usage: Not a single reader of net->nfnl uses rcu accessors. When exit_batch callbacks are executed the net namespace is already dead so no calls to these functions are possible anymore (else we'd get NULL deref crash too). If the module is removed, then modules that call any of those functions have been removed too so no calls to nfnl functions are possible either. The nfnl and nfl_stash pointers in struct net are no longer used, they will be removed in a followup patch to minimize changes to struct net (causes rebuild for entire network stack). Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2021-04-06netfilter: nfnetlink: add and use nfnetlink_broadcastFlorian Westphal
This removes the only reference of net->nfnl outside of the nfnetlink module. This allows to move net->nfnl to net_generic infra. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2021-04-03netfilter: nftables: remove documentation on static functionsPablo Neira Ayuso
Since 4f16d25c68ec ("netfilter: nftables: add nft_parse_register_load() and use it") and 345023b0db31 ("netfilter: nftables: add nft_parse_register_store() and use it"), the following functions are not exported symbols anymore: - nft_parse_register() - nft_validate_register_load() - nft_validate_register_store() Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2021-04-03netfilter: nftables: fix a warning message in nf_tables_commit_audit_collect()Dan Carpenter
The first argument of a WARN_ONCE() is a condition. This WARN_ONCE() will only print the table name, and is potentially problematic if the table name has a %s in it. Fixes: c520292f29b8 ("audit: log nftables configuration change events once per table") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Paul Moore <paul@paul-moore.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2021-04-03netfilter: ipvs: do not printk on netns creationFlorian Westphal
This causes dmesg spew during normal operation, so remove this. Signed-off-by: Florian Westphal <fw@strlen.de> Acked-by: Julian Anastasov <ja@ssi.bg> Reviewed-by: Simon Horman <horms@verge.net.au> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2021-03-31netfilter: add helper function to set up the nfnetlink header and use itPablo Neira Ayuso
This patch adds a helper function to set up the netlink and nfnetlink headers. Update existing codebase to use it. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2021-03-31netfilter: nftables: add helper function to set the base sequence numberPablo Neira Ayuso
This patch adds a helper function to calculate the base sequence number field that is stored in the nfnetlink header. Use the helper function whenever possible. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2021-03-31netfilter: nftables: remove unnecessary spin_lock_init()Yang Yingliang
The spinlock nf_tables_destroy_list_lock is initialized statically. It is unnecessary to initialize by spin_lock_init(). Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2021-03-31netfilter: flowtable: dst_check() from garbage collector pathPablo Neira Ayuso
Move dst_check() to the garbage collector path. Stale routes trigger the flow entry teardown state which makes affected flows go back to the classic forwarding path to re-evaluate flow offloading. IPv6 requires the dst cookie to work, store it in the flow_tuple, otherwise dst_check() always fails. Fixes: e5075c0badaa ("netfilter: flowtable: call dst_check() to fall back to classic forwarding") Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2021-03-31netfilter: ipset: Remove duplicate declarationWan Jiabing
struct ip_set is declared twice. One is declared at 79th line, so remove the duplicate. Signed-off-by: Wan Jiabing <wanjiabing@vivo.com> Acked-by: Jozsef Kadlecsik <kadlec@netfilter.org> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2021-03-31audit: log nftables configuration change events once per tableRichard Guy Briggs
Reduce logging of nftables events to a level similar to iptables. Restore the table field to list the table, adding the generation. Indicate the op as the most significant operation in the event. A couple of sample events: type=PROCTITLE msg=audit(2021-03-18 09:30:49.801:143) : proctitle=/usr/bin/python3 -s /usr/sbin/firewalld --nofork --nopid type=SYSCALL msg=audit(2021-03-18 09:30:49.801:143) : arch=x86_64 syscall=sendmsg success=yes exit=172 a0=0x6 a1=0x7ffdcfcbe650 a2=0x0 a3=0x7ffdcfcbd52c items=0 ppid=1 pid=367 auid=unset uid=root gid=root euid=root suid=root fsuid=root egid=roo t sgid=root fsgid=root tty=(none) ses=unset comm=firewalld exe=/usr/bin/python3.9 subj=system_u:system_r:firewalld_t:s0 key=(null) type=NETFILTER_CFG msg=audit(2021-03-18 09:30:49.801:143) : table=firewalld:2 family=ipv6 entries=1 op=nft_register_table pid=367 subj=system_u:system_r:firewalld_t:s0 comm=firewalld type=NETFILTER_CFG msg=audit(2021-03-18 09:30:49.801:143) : table=firewalld:2 family=ipv4 entries=1 op=nft_register_table pid=367 subj=system_u:system_r:firewalld_t:s0 comm=firewalld type=NETFILTER_CFG msg=audit(2021-03-18 09:30:49.801:143) : table=firewalld:2 family=inet entries=1 op=nft_register_table pid=367 subj=system_u:system_r:firewalld_t:s0 comm=firewalld type=PROCTITLE msg=audit(2021-03-18 09:30:49.839:144) : proctitle=/usr/bin/python3 -s /usr/sbin/firewalld --nofork --nopid type=SYSCALL msg=audit(2021-03-18 09:30:49.839:144) : arch=x86_64 syscall=sendmsg success=yes exit=22792 a0=0x6 a1=0x7ffdcfcbe650 a2=0x0 a3=0x7ffdcfcbd52c items=0 ppid=1 pid=367 auid=unset uid=root gid=root euid=root suid=root fsuid=root egid=r oot sgid=root fsgid=root tty=(none) ses=unset comm=firewalld exe=/usr/bin/python3.9 subj=system_u:system_r:firewalld_t:s0 key=(null) type=NETFILTER_CFG msg=audit(2021-03-18 09:30:49.839:144) : table=firewalld:3 family=ipv6 entries=30 op=nft_register_chain pid=367 subj=system_u:system_r:firewalld_t:s0 comm=firewalld type=NETFILTER_CFG msg=audit(2021-03-18 09:30:49.839:144) : table=firewalld:3 family=ipv4 entries=30 op=nft_register_chain pid=367 subj=system_u:system_r:firewalld_t:s0 comm=firewalld type=NETFILTER_CFG msg=audit(2021-03-18 09:30:49.839:144) : table=firewalld:3 family=inet entries=165 op=nft_register_chain pid=367 subj=system_u:system_r:firewalld_t:s0 comm=firewalld The issue was originally documented in https://github.com/linux-audit/audit-kernel/issues/124 Signed-off-by: Richard Guy Briggs <rgb@redhat.com> Acked-by: Paul Moore <paul@paul-moore.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2021-03-31netfilter: nft_log: perform module load from nf_tablesFlorian Westphal
modprobe calls from the nf_logger_find_get() API causes deadlock in very special cases because they occur with the nf_tables transaction mutex held. In the specific case of nf_log, deadlock is via: A nf_tables -> transaction mutex -> nft_log -> modprobe -> nf_log_syslog \ -> pernet_ops rwsem -> wait for C B netlink event -> rtnl_mutex -> nf_tables transaction mutex -> wait for A C close() -> ip6mr_sk_done -> rtnl_mutex -> wait for B Earlier patch added NFLOG/xt_LOG module softdeps to avoid the need to load the backend module during a transaction. For nft_log we would have to add a softdep for both nfnetlink_log or nf_log_syslog, since we do not know in advance which of the two backends are going to be configured. This defers the modprobe op until after the transaction mutex is released. Tested-by: Phil Sutter <phil@nwl.cc> Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2021-03-31netfilter: nf_log: add module softdepsFlorian Westphal
xt_LOG has no direct dependency on the syslog-based logger, it relies on the nf_log core to probe the requested backend. Now that all syslog-based loggers reside in the same module, we can just add a soft dependency on nf_log_syslog and let modprobe take care of it. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2021-03-31netfilter: nf_log_common: merge with nf_log_syslogFlorian Westphal
Remove nf_log_common. Now that all per-af modules have been merged there is no longer a need to provide a helper module. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2021-03-31netfilter: nf_log_bridge: merge with nf_log_syslogFlorian Westphal
Provide bridge log support from nf_log_syslog. After the merge there is no need to load the "real packet loggers", all of them now reside in the same module. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2021-03-31netfilter: nf_log_netdev: merge with nf_log_syslogFlorian Westphal
Provide netdev family support from the nf_log_syslog module. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2021-03-31netfilter: nf_log_ipv6: merge with nf_log_syslogFlorian Westphal
This removes the nf_log_ipv6 module, the functionality is now provided by nf_log_syslog. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2021-03-31netfilter: nf_log_arp: merge with nf_log_syslogFlorian Westphal
similar to previous change: nf_log_syslog now covers ARP logging as well, the old nf_log_arp module is removed. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2021-03-31netfilter: nf_log_ipv4: rename to nf_log_syslogFlorian Westphal
Netfilter has multiple log modules: nf_log_arp nf_log_bridge nf_log_ipv4 nf_log_ipv6 nf_log_netdev nfnetlink_log nf_log_common With the exception of nfnetlink_log (packet is sent to userspace for dissection/logging), all of them log to the kernel ringbuffer. This is the first part of a series to merge all modules except nfnetlink_log into a single module: nf_log_syslog. This allows to reduce code. After the series, only two log modules remain: nfnetlink_log and nf_log_syslog. The latter provides the same functionality as the old per-af log modules. This renames nf_log_ipv4 to nf_log_syslog. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2021-03-30net: mhi: remove pointless conditional before kfree_skb()Yang Yingliang
It already has null pointer check in kfree_skb(), remove pointless pointer check before kfree_skb(). Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30stmmac: intel: add cross time-stamping freq difference adjustmentWong Vee Khee
Cross time-stamping mechanism used in certain instance of Intel mGbE may run at different clock frequency in comparison to the clock frequency used by processor, so we introduce cross T/S frequency adjustment to ensure TSC calculation is correct when processor got the cross time-stamps. Signed-off-by: Wong Vee Khee <vee.khee.wong@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30mISDN: Use LIST_HEAD() for list_headShixin Liu
There's no need to declare a list and then init it manually, just use the LIST_HEAD() macro. Signed-off-by: Shixin Liu <liushixin2@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30mISDN: Use DEFINE_SPINLOCK() for spinlockShixin Liu
spinlock can be initialized automatically with DEFINE_SPINLOCK() rather than explicitly calling spin_lock_init(). Changelog: From v1: 1. fix the mistake reported by kernel test robot. Signed-off-by: Shixin Liu <liushixin2@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30Merge branch 'rfc8335-probe'David S. Miller
Andreas Roeseler says: ==================== add support for RFC 8335 PROBE The popular utility ping has several severe limitations, such as the inability to query specific interfaces on a node and requiring bidirectional connectivity between the probing and probed interfaces. RFC 8335 attempts to solve these limitations by creating the new utility PROBE which is a specialized ICMP message that makes use of the ICMP Extension Structure outlined in RFC 4884. This patchset adds definitions for the ICMP Extended Echo Request and Reply (PROBE) types for both IPV4 and IPV6, adds a sysctl to enable responses to PROBE messages, expands the list of supported ICMP messages to accommodate PROBE types, adds ipv6_dev_find into ipv6_stubs, and adds functionality to respond to PROBE requests. Changes: v1 -> v2: - Add AFI definitions - Switch to functions such as dev_get_by_name and ip_dev_find to lookup net devices v2 -> v3: Suggested by Willem de Bruijn <willemdebruijn.kernel@gmail.com> - Add verification of incoming messages before looking up netdev - Add prefix for PROBE specific defined variables - Use proc_dointvec_minmax with zero and one for sysctl - Create struct icmp_ext_echo_iio for parsing incoming packets Reported-by: kernel test robot <lkp@intel.com> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> - Include net/addrconf.h library for ipv6_dev_find v3 -> v4: - Use in_addr instead of __be32 for storing IPV4 addresses - Use IFNAMSIZ to statically allocate space for name in icmp_ext_echo_iio Suggested by Willem de Bruijn <willemdebruijn.kernel@gmail.com> - Use skb_header_pointer to verify fields in incoming message - Add check to ensure that extobj_hdr.length is valid - Check to ensure object payload is padded with ASCII NULL characters when probing by name, as specified by RFC 8335 - Statically allocate buff using IFNAMSIZ - Add rcu blocking around ipv6_dev_find - Use __in_dev_get_rcu to access IPV4 addresses of identified net_device - Remove check for ICMPV6 PROBE types v4 -> v5: - Statically allocate buff to size IFNAMSIZ on declaration - Remove goto probe in favor of single branch - Remove strict check for incoming PROBE request padding to nearest 32-bit boundary Reported-by: kernel test robot <lkp@intel.com> v5 -> v6: - Add documentation for icmp_echo_enable_probe sysctl - Remove RCU locking around ipv6_dev_find() - Assign iio based on ctype ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30icmp: add response to RFC 8335 PROBE messagesAndreas Roeseler
Modify the icmp_rcv function to check PROBE messages and call icmp_echo if a PROBE request is detected. Modify the existing icmp_echo function to respond ot both ping and PROBE requests. This was tested using a custom modification to the iputils package and wireshark. It supports IPV4 probing by name, ifindex, and probing by both IPV4 and IPV6 addresses. It currently does not support responding to probes off the proxy node (see RFC 8335 Section 2). The modification to the iputils package is still in development and can be found here: https://github.com/Juniper-Clinic-2020/iputils.git. It supports full sending functionality of PROBE requests, but currently does not parse the response messages, which is why Wireshark is required to verify the sent and recieved PROBE messages. The modification adds the ``-e'' flag to the command which allows the user to specify the interface identifier to query the probed host. An example usage would be <./ping -4 -e 1 [destination]> to send a PROBE request of ifindex 1 to the destination node. Signed-off-by: Andreas Roeseler <andreas.a.roeseler@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30ipv6: add ipv6_dev_find to stubsAndreas Roeseler
Add ipv6_dev_find to ipv6_stub to allow lookup of net_devices by IPV6 address in net/ipv4/icmp.c. Signed-off-by: Andreas Roeseler <andreas.a.roeseler@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30net: add support for sending RFC 8335 PROBE messagesAndreas Roeseler
Modify the ping_supported function to support PROBE message types. This allows tools such as the ping command in the iputils package to be modified to send PROBE requests through the existing framework for sending ping requests. Signed-off-by: Andreas Roeseler <andreas.a.roeseler@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30net: add sysctl for enabling RFC 8335 PROBE messagesAndreas Roeseler
Section 8 of RFC 8335 specifies potential security concerns of responding to PROBE requests, and states that nodes that support PROBE functionality MUST be able to enable/disable responses and that responses MUST be disabled by default Signed-off-by: Andreas Roeseler <andreas.a.roeseler@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30ICMPV6: add support for RFC 8335 PROBEAndreas Roeseler
Add definitions for the ICMPV6 type of Extended Echo Request and Extended Echo Reply, as defined by sections 2 and 3 of RFC 8335. Signed-off-by: Andreas Roeseler <andreas.a.roeseler@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30icmp: add support for RFC 8335 PROBEAndreas Roeseler
Add definitions for PROBE ICMP types and codes. Add AFI definitions for IP and IPV6 as specified by IANA Add a struct to represent the additional header when probing by IP address (ctype == 3) for use in parsing incoming PROBE messages Add a struct to represent the entire Interface Identification Object (IIO) section of an incoming PROBE packet Signed-off-by: Andreas Roeseler <andreas.a.roeseler@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30net: phy: lan87xx: fix access to wrong register of LAN87xxAndre Edich
The function lan87xx_config_aneg_ext was introduced to configure LAN95xxA but as well writes to undocumented register of LAN87xx. This fix prevents that access. The function lan87xx_config_aneg_ext gets more suitable for the new behavior name. Reported-by: Måns Rullgård <mans@mansr.com> Fixes: 05b35e7eb9a1 ("smsc95xx: add phylib support") Signed-off-by: Andre Edich <andre.edich@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30Merge tag 'linux-can-next-for-5.13-20210330' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next Marc Kleine-Budde says: ==================== pull-request: can-next 2021-03-30 this is a pull request of 39 patches for net-next/master. The first two patches update the MAINTAINERS file. One is by me and removes Dan Murphy from the from m_can and tcan4x5x. The other one is by Pankaj Sharma and updates the maintainership of the m-can mmio driver. The next three patches are by me and update the CAN echo skb handling. Vincent Mailhol provides 5 patches where Transmitter Delay Compensation is added CAN bittiming calculation is cleaned up. The next patch is by me and adds a missing HAS_IOMEM to the grcan driver. Michal Simek's patch for the xilinx driver add dev_err_probe() support. Arnd Bergmann's patch for the ucan driver fixes a compiler warning. Stephane Grosjean provides 3 patches for the peak USB drivers, which add ethtool set_phys_id and CAN one-shot mode. Xulin Sun's patch removes a not needed return check in the m-can driver. Torin Cooper-Bennun provides 3 patches for the m-can driver that add rx-offload support to ensure that skbs are sent from softirq context. Wan Jiabing's patch for the tcan4x5x driver removes a duplicate include. The next 6 patches are by me and target the mcp251xfd driver. They add devcoredump support, simplify the UINC handling, and add HW timestamp support. The remaining 12 patches target the c_can driver. The first 6 are by me and do generic checkpatch related cleanup work. Dario Binacchi's patches bring some cleanups and increase the number of usable message objects from 16 to 64. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30Merge tag 'mlx5-updates-2021-03-29' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux Saeed Mahameed says: ==================== mlx5-updates-2021-03-29 Coexistence of CQE compression and HW PTP time-stamp: From Aya this series improves mlx5 netdev driver to allow both mlx5 CQE compression (RX descriptor compression, that saves on PCI transaction) and HW time-stamp PTP to co-exists. Prior to this series both features were mutually exclusive due to the nature of CQE compression which reduces the size of RX descriptor for the price of trimming some data, such as the time-stamp. In order to allow CQE compression when PTP time stamping is enabled, We enable it on the regular performance critical RX queues which will service all the data path traffic that is not PTP. PTP traffic will be re-directed to dedicated RX queues on which we will not enable CQE compression and thus keep the time-stamp intact. Having both features is critical for systems with low PCI BW, e.g. Multi-Host. The series will be adding: 1) Infrastructure to create a dedicated RX queue to service the PTP traffic 2) Flow steering plumbing to capture PTP traffic both UDP packets with destination port 319 and L2 packets with ethertype 0x88F7 3) Steer PTP traffic to the dedicated RX queue. 4) The feature will be enabled when PTP is being configured via the already existing PTP IOCTL when CQE compression is active, otherwise no change to the driver flow. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30can: c_can: add support to 64 message objectsDario Binacchi
D_CAN controller supports 16, 32, 64 or 128 message objects, comparing to 32 on C_CAN. AM335x/AM437x Sitara processors and DRA7 SOC all instantiate a D_CAN controller with 64 message objects, as described in the "DCAN features" subsection of the CAN chapter of their technical reference manuals. The driver policy has been kept unchanged, and as in the previous version, the first half of the message objects is used for reception and the second for transmission. The I/O load is increased only in the case of 64 message objects, keeping it unchanged in the case of 32. Two 32-bit read accesses are in fact required, which however remained at 16-bit for configurations with 32 message objects. Link: https://lore.kernel.org/r/20210302215435.18286-7-dariobin@libero.it Signed-off-by: Dario Binacchi <dariobin@libero.it> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2021-03-30can: c_can: prepare to up the message objects numberDario Binacchi
As pointed by commit c0a9f4d396c9 ("can: c_can: Reduce register access") the "driver casts the 16 message objects in stone, which is completely braindead as contemporary hardware has up to 128 message objects". The patch prepares the module to extend the number of message objects beyond the 32 currently managed. This was achieved by transforming the constants used to manage RX/TX messages into variables without changing the driver policy. Reported-by: kernel test robot <lkp@intel.com> Link: https://lore.kernel.org/r/20210302215435.18286-6-dariobin@libero.it Signed-off-by: Dario Binacchi <dariobin@libero.it> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2021-03-30can: c_can: use 32-bit write to set arbitration registerDario Binacchi
The arbitration register is already set up with 32-bit writes in the other parts of the code except for this point. Link: https://lore.kernel.org/r/20210302215435.18286-5-dariobin@libero.it Signed-off-by: Dario Binacchi <dariobin@libero.it> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2021-03-30can: c_can: add a comment about IF_RX interface's useDario Binacchi
After reading the commit 640916db2bf7 ("can: c_can: Make it SMP safe") it may sound strange to see the IF_RX interface used by the can_inval_tx_object function. A comment was added to avoid any misunderstanding. Link: https://lore.kernel.org/r/20210302215435.18286-4-dariobin@libero.it Signed-off-by: Dario Binacchi <dariobin@libero.it> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2021-03-30can: c_can: fix indentationDario Binacchi
Commit 524369e2391f ("can: c_can: remove obsolete STRICT_FRAME_ORDERING Kconfig option") left behind wrong indentation, fix it. Link: https://lore.kernel.org/r/20210302215435.18286-3-dariobin@libero.it Signed-off-by: Dario Binacchi <dariobin@libero.it> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2021-03-30can: c_can: remove unused codeDario Binacchi
Commit 9d23a9818cb1 ("can: c_can: Remove unused inline function") left behind C_CAN_MSG_OBJ_TX_LAST constant. Commit fa39b54ccf28 ("can: c_can: Get rid of pointless interrupts") left behind C_CAN_MSG_RX_LOW_LAST and C_CAN_MSG_OBJ_RX_SPLIT constants. The removed code also made a comment useless and misleading. Link: https://lore.kernel.org/r/20210302215435.18286-2-dariobin@libero.it Signed-off-by: Dario Binacchi <dariobin@libero.it> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2021-03-30can: c_can: fix remaining checkpatch warningsMarc Kleine-Budde
This patch fixes the remaining checkpatch warnings in the driver. Link: https://lore.kernel.org/r/20210304154240.2747987-7-mkl@pengutronix.de Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2021-03-30can: c_can: replace double assignments by two single onesMarc Kleine-Budde
This patch replaces the double assignments by two single ones, to make checkpatch happy. Link: https://lore.kernel.org/r/20210304154240.2747987-6-mkl@pengutronix.de Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2021-03-30can: c_can: fix print formating stringMarc Kleine-Budde
This patch fixes the print format string in the driver, so that it stays in a single line. Link: https://lore.kernel.org/r/20210304154240.2747987-5-mkl@pengutronix.de Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2021-03-30can: c_can: fix indentionMarc Kleine-Budde
This patch fixes the indention in the driver. Link: https://lore.kernel.org/r/20210304154240.2747987-4-mkl@pengutronix.de Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2021-03-30can: c_can: remove unnecessary blank lines and add suggested onesMarc Kleine-Budde
This patch removes unnecessary blank lines and add suggested ones, so that checkpatch doesn't complain anymore. Link: https://lore.kernel.org/r/20210304154240.2747987-3-mkl@pengutronix.de Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2021-03-30can: c_can: convert block comments to network style commentsMarc Kleine-Budde
This patch converts all block comments to network subsystem style block comments. Link: https://lore.kernel.org/r/20210304154240.2747987-2-mkl@pengutronix.de Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2021-03-30can: mcp251xfd: add HW timestamp to RX, TX and error CAN framesMarc Kleine-Budde
This patch uses the previously added mcp251xfd_skb_set_timestamp() function to convert the timestamp done by the CAN controller into a proper skb hw timestamp. Link: https://lore.kernel.org/r/20210304161209.2754463-1-mkl@pengutronix.de Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2021-03-30can: mcp251xfd: add HW timestamp infrastructureMarc Kleine-Budde
This patch add the HW timestamping infrastructure. The mcp251xfd has a free running timer of 32 bit width, running at max 40MHz, which wraps around every 107 seconds. The current timestamp is latched into RX and TEF objects automatically be the CAN controller. This patch sets up a cyclecounter, timecounter and delayed worker infrastructure (which runs every 45 seconds) to convert the timer into a proper 64 bit based ns timestamp. Link: https://lore.kernel.org/r/20210304160328.2752293-6-mkl@pengutronix.de Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2021-03-30can: mcp251xfd: mcp251xfd_get_timestamp(): move to mcp251xfd.hMarc Kleine-Budde
This is a preparation patch, it moves the mcp251xfd_get_timestamp() function into the mcp251xfd.h file. Link: https://lore.kernel.org/r/20210304160328.2752293-5-mkl@pengutronix.de Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2021-03-30can: mcp251xfd: move netdevice.h to mcp251xfd.hMarc Kleine-Budde
The netdevice.h header is needed in mcp251xfd.h, so that it can be included without further headers. Link: https://lore.kernel.org/r/20210304160328.2752293-4-mkl@pengutronix.de Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2021-03-30can: mcp251xfd: simplify UINC handlingMarc Kleine-Budde
In the patches: | 1f652bb6bae7 can: mcp25xxfd: rx-path: reduce number of SPI core requests to set UINC bit | 68c0c1c7f966 can: mcp251xfd: tef-path: reduce number of SPI core requests to set UINC bit the setting of the UINC bit in the TEF and RX FIFO was batched into a single SPI message consisting of several transfers. All transfers but the last need to have the cs_change set to 1. In the original patches the array of prepared transfers is send from the beginning with the length depending on the number of read TEF/RX objects. The cs_change of the last transfer is temporarily set to 0 during send. This patch removes the modification of cs_change by preparing the last transfer with cs_change to 0 and all other to 1. When sending the SPI message the driver now starts with an offset into the array, so that it always ends on the last entry in the array, which has the cs_change set to 0. Link: https://lore.kernel.org/r/20210304160328.2752293-3-mkl@pengutronix.de Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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