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2020-09-24net: tcp: drop unused function argument from mptcp_incoming_optionsFlorian Westphal
Since commit cfde141ea3faa30e ("mptcp: move option parsing into mptcp_incoming_options()"), the 3rd function argument is no longer used. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-24mptcp: add sk_stop_timer_sync helperGeliang Tang
This patch added a new helper sk_stop_timer_sync, it deactivates a timer like sk_stop_timer, but waits for the handler to finish. Acked-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Geliang Tang <geliangtang@gmail.com> Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-24of: add of_mdio_find_device() apiRussell King
Add a helper function which finds the mdio_device structure given a device tree node. This is helpful for finding the PCS device based on a DTS node but managing it as a mdio_device instead of a phy_device. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-24net: mscc: ocelot: always pass skb clone to ocelot_port_add_txtstamp_skbVladimir Oltean
Currently, ocelot switchdev passes the skb directly to the function that enqueues it to the list of skb's awaiting a TX timestamp. Whereas the felix DSA driver first clones the skb, then passes the clone to this queue. This matters because in the case of felix, the common IRQ handler, which is ocelot_get_txtstamp(), currently clones the clone, and frees the original clone. This is useless and can be simplified by using skb_complete_tx_timestamp() instead of skb_tstamp_tx(). Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Acked-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-23net: phy: Document core PHY structuresAndrew Lunn
Add kerneldoc for the core PHY data structures, a few inline functions and exported functions which are not already documented. v2 Typos g/phy/PHY/s Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-23net: phy: Fixup kernel docAndrew Lunn
Add missing parameter documentation, or fixup wrong parameter names. Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-23net: bridge: mcast: add support for blocked port groupsNikolay Aleksandrov
When excluding S,G entries we need a way to block a particular S,G,port. The new port group flag is managed based on the source's timer as per RFCs 3376 and 3810. When a source expires and its port group is in EXCLUDE mode, it will be blocked. Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-23net: bridge: mcast: handle port group filter modesNikolay Aleksandrov
We need to handle group filter mode transitions and initial state. To change a port group's INCLUDE -> EXCLUDE mode (or when we have added a new port group in EXCLUDE mode) we need to add that port to all of *,G ports' S,G entries for proper replication. When the EXCLUDE state is changed from IGMPv3 report, br_multicast_fwd_filter_exclude() must be called after the source list processing because the assumption is that all of the group's S,G entries will be created before transitioning to EXCLUDE mode, i.e. most importantly its blocked entries will already be added so it will not get automatically added to them. The transition EXCLUDE -> INCLUDE happens only when a port group timer expires, it requires us to remove that port from all of *,G ports' S,G entries where it was automatically added previously. Finally when we are adding a new S,G entry we must add all of *,G's EXCLUDE ports to it. In order to distinguish automatically added *,G EXCLUDE ports we have a new port group flag - MDB_PG_FLAGS_STAR_EXCL. Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-23net: bridge: mcast: add rt_protocol field to the port group structNikolay Aleksandrov
We need to be able to differentiate between pg entries created by user-space and the kernel when we start generating S,G entries for IGMPv3/MLDv2's fast path. User-space entries are created by default as RTPROT_STATIC and the kernel entries are RTPROT_KERNEL. Later we can allow user-space to provide the entry rt_protocol so we can differentiate between who added the entries specifically (e.g. clag, admin, frr etc). Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-23net: bridge: mdb: add support for add/del/dump of entries with sourceNikolay Aleksandrov
Add new mdb attributes (MDBE_ATTR_SOURCE for setting, MDBA_MDB_EATTR_SOURCE for dumping) to allow add/del and dump of mdb entries with a source address (S,G). New S,G entries are created with filter mode of MCAST_INCLUDE. The same attributes are used for IPv4 and IPv6, they're validated and parsed based on their protocol. S,G host joined entries which are added by user are not allowed yet. Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-23net: bridge: mdb: add support to extend add/del commandsNikolay Aleksandrov
Since the MDB add/del code expects an exact struct br_mdb_entry we can't really add any extensions, thus add a new nested attribute at the level of MDBA_SET_ENTRY called MDBA_SET_ENTRY_ATTRS which will be used to pass all new options via netlink attributes. This patch doesn't change anything functionally since the new attribute is not used yet, only parsed. Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-23net: bridge: mcast: rename br_ip's u member to dstNikolay Aleksandrov
Since now we have src in br_ip, u no longer makes sense so rename it to dst. No functional changes. v2: fix build with CONFIG_BATMAN_ADV_MCAST CC: Marek Lindner <mareklindner@neomailbox.ch> CC: Simon Wunderlich <sw@simonwunderlich.de> CC: Antonio Quartulli <a@unstable.cc> CC: Sven Eckelmann <sven@narfation.org> CC: b.a.t.m.a.n@lists.open-mesh.org Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-23net: bridge: add src field to br_ipNikolay Aleksandrov
Add a new src field to struct br_ip which will be used to lookup S, G entries. When SSM option is added we will enable full br_ip lookups. Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-23Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-nextDavid S. Miller
Alexei Starovoitov says: ==================== pull-request: bpf-next 2020-09-23 The following pull-request contains BPF updates for your *net-next* tree. We've added 95 non-merge commits during the last 22 day(s) which contain a total of 124 files changed, 4211 insertions(+), 2040 deletions(-). The main changes are: 1) Full multi function support in libbpf, from Andrii. 2) Refactoring of function argument checks, from Lorenz. 3) Make bpf_tail_call compatible with functions (subprograms), from Maciej. 4) Program metadata support, from YiFei. 5) bpf iterator optimizations, from Yonghong. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-22Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netDavid S. Miller
Two minor conflicts: 1) net/ipv4/route.c, adding a new local variable while moving another local variable and removing it's initial assignment. 2) drivers/net/dsa/microchip/ksz9477.c, overlapping changes. One pretty prints the port mode differently, whilst another changes the driver to try and obtain the port mode from the port node rather than the switch node. Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-22Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds
Pull vfs fixes from Al Viro: "No common topic, just assorted fixes" * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: fuse: fix the ->direct_IO() treatment of iov_iter fs: fix cast in fsparam_u32hex() macro vboxsf: Fix the check for the old binary mount-arguments struct
2020-09-22Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds
Pull networking fixes from Jakub Kicinski: - fix failure to add bond interfaces to a bridge, the offload-handling code was too defensive there and recent refactoring unearthed that. Users complained (Ido) - fix unnecessarily reflecting ECN bits within TOS values / QoS marking in TCP ACK and reset packets (Wei) - fix a deadlock with bpf iterator. Hopefully we're in the clear on this front now... (Yonghong) - BPF fix for clobbering r2 in bpf_gen_ld_abs (Daniel) - fix AQL on mt76 devices with FW rate control and add a couple of AQL issues in mac80211 code (Felix) - fix authentication issue with mwifiex (Maximilian) - WiFi connectivity fix: revert IGTK support in ti/wlcore (Mauro) - fix exception handling for multipath routes via same device (David Ahern) - revert back to a BH spin lock flavor for nsid_lock: there are paths which do require the BH context protection (Taehee) - fix interrupt / queue / NAPI handling in the lantiq driver (Hauke) - fix ife module load deadlock (Cong) - make an adjustment to netlink reply message type for code added in this release (the sole change touching uAPI here) (Michal) - a number of fixes for small NXP and Microchip switches (Vladimir) [ Pull request acked by David: "you can expect more of this in the future as I try to delegate more things to Jakub" ] * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (167 commits) net: mscc: ocelot: fix some key offsets for IP4_TCP_UDP VCAP IS2 entries net: dsa: seville: fix some key offsets for IP4_TCP_UDP VCAP IS2 entries net: dsa: felix: fix some key offsets for IP4_TCP_UDP VCAP IS2 entries inet_diag: validate INET_DIAG_REQ_PROTOCOL attribute net: bridge: br_vlan_get_pvid_rcu() should dereference the VLAN group under RCU net: Update MAINTAINERS for MediaTek switch driver net/mlx5e: mlx5e_fec_in_caps() returns a boolean net/mlx5e: kTLS, Avoid kzalloc(GFP_KERNEL) under spinlock net/mlx5e: kTLS, Fix leak on resync error flow net/mlx5e: kTLS, Add missing dma_unmap in RX resync net/mlx5e: kTLS, Fix napi sync and possible use-after-free net/mlx5e: TLS, Do not expose FPGA TLS counter if not supported net/mlx5e: Fix using wrong stats_grps in mlx5e_update_ndo_stats() net/mlx5e: Fix multicast counter not up-to-date in "ip -s" net/mlx5e: Fix endianness when calculating pedit mask first bit net/mlx5e: Enable adding peer miss rules only if merged eswitch is supported net/mlx5e: CT: Fix freeing ct_label mapping net/mlx5e: Fix memory leak of tunnel info when rule under multipath not ready net/mlx5e: Use synchronize_rcu to sync with NAPI net/mlx5e: Use RCU to protect rq->xdp_prog ...
2020-09-22Merge tag 'trace-v5.9-rc5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing fixes from Steven Rostedt: - Check kprobe is enabled before unregistering from ftrace as it isn't registered when disabled. - Remove kprobes enabled via command-line that is on init text when freed. - Add missing RCU synchronization for ftrace trampoline symbols removed from kallsyms. - Free trampoline on error path if ftrace_startup() fails. - Give more space for the longer PID numbers in trace output. - Fix a possible double free in the histogram code. - A couple of fixes that were discovered by sparse. * tag 'trace-v5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: bootconfig: init: make xbc_namebuf static kprobes: tracing/kprobes: Fix to kill kprobes on initmem after boot tracing: fix double free ftrace: Let ftrace_enable_sysctl take a kernel pointer buffer tracing: Make the space reserved for the pid wider ftrace: Fix missing synchronize_rcu() removing trampoline from kallsyms ftrace: Free the trampoline when ftrace_startup() fails kprobes: Fix to check probe enabled before disarm_kprobe_ftrace()
2020-09-21net: phy: bcm7xxx: Add an entry for BCM72113Florian Fainelli
BCM72113 features a 28nm integrated EPHY, add an entry to the driver for it. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-21bpf: Use a table to drive helper arg type checksLorenz Bauer
The mapping between bpf_arg_type and bpf_reg_type is encoded in a big hairy if statement that is hard to follow. The debug output also leaves to be desired: if a reg_type doesn't match we only print one of the options, instead printing all the valid ones. Convert the if statement into a table which is then used to drive type checking. If none of the reg_types match we print all options, e.g.: R2 type=rdonly_buf expected=fp, pkt, pkt_meta, map_value Signed-off-by: Lorenz Bauer <lmb@cloudflare.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Martin KaFai Lau <kafai@fb.com> Link: https://lore.kernel.org/bpf/20200921121227.255763-12-lmb@cloudflare.com
2020-09-21bpf: Allow specifying a BTF ID per argument in function protosLorenz Bauer
Function prototypes using ARG_PTR_TO_BTF_ID currently use two ways to signal which BTF IDs are acceptable. First, bpf_func_proto.btf_id is an array of IDs, one for each argument. This array is only accessed up to the highest numbered argument that uses ARG_PTR_TO_BTF_ID and may therefore be less than five arguments long. It usually points at a BTF_ID_LIST. Second, check_btf_id is a function pointer that is called by the verifier if present. It gets the actual BTF ID of the register, and the argument number we're currently checking. It turns out that the only user check_arg_btf_id ignores the argument, and is simply used to check whether the BTF ID has a struct sock_common at it's start. Replace both of these mechanisms with an explicit BTF ID for each argument in a function proto. Thanks to btf_struct_ids_match this is very flexible: check_arg_btf_id can be replaced by requiring struct sock_common. Signed-off-by: Lorenz Bauer <lmb@cloudflare.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Martin KaFai Lau <kafai@fb.com> Link: https://lore.kernel.org/bpf/20200921121227.255763-5-lmb@cloudflare.com
2020-09-21btf: Add BTF_ID_LIST_SINGLE macroLorenz Bauer
Add a convenience macro that allows defining a BTF ID list with a single item. This lets us cut down on repetitive macros. Suggested-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Lorenz Bauer <lmb@cloudflare.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Martin KaFai Lau <kafai@fb.com> Link: https://lore.kernel.org/bpf/20200921121227.255763-4-lmb@cloudflare.com
2020-09-21btf: Make btf_set_contains take a const pointerLorenz Bauer
bsearch doesn't modify the contents of the array, so we can take a const pointer. Signed-off-by: Lorenz Bauer <lmb@cloudflare.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Andrii Nakryiko <andriin@fb.com> Link: https://lore.kernel.org/bpf/20200921121227.255763-2-lmb@cloudflare.com
2020-09-21Merge tag 'linux-can-next-for-5.10-20200921' 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 2020-09-21 this is a pull request of 38 patches for net-next. the first 5 patches are by Colin Ian King, Alexandre Belloni and me and they fix various spelling mistakes. The next patch is by me and fixes the indention in the CAN raw protocol according to the kernel coding style. Diego Elio Pettenò contributes two patches to fix dead links in CAN's Kconfig. Masahiro Yamada's patch removes the "WITH Linux-syscall-note" from SPDX tag of C files. AThe next 4 patches are by me and target the CAN device infrastructure and add error propagation and improve the output of various messages to ease driver development and debugging. YueHaibing's patch for the c_can driver removes an unused inline function. Next follows another patch by Colin Ian King, which removes the unneeded initialization of a variable in the mcba_usb driver. A patch by me annotates a fallthrough in the mscan driver. The ti_hecc driver is converted to use devm_platform_ioremap_resource_byname() in a patch by Dejin Zheng. Liu Shixin's patch converts the pcan_usb_pro driver to make use of le32_add_cpu() instead of open coding it. Wang Hai's patch for the peak_pciefd_main driver removes an unused makro. Vaibhav Gupta's patch converts the pch_can driver to generic power management. Stephane Grosjean improves the pcan_usb usb driver by first documenting the commands sent to the device and by adding support of rxerr/txerr counters. The next patch is by me and cleans up the Kconfig of the CAN SPI drivers. The next 6 patches all target the mcp251x driver, they are by Timo Schlüßler, Andy Shevchenko, Tim Harvey and me. They update the DT bindings documentation, sort the include files alphabetically, add GPIO support, make use of the readx_poll_timeout() helper, and add support for half duplex SPI-controllers. Wolfram Sang contributes a patch to update the contact email address in the mscan driver, while Zhang Changzhong updates the clock handling. The next patch is by and updates the rx-offload infrastructure to support callback less usage. The last 6 patches add support for the mcp25xxfd CAN SPI driver. First the dt-bindings are added by Oleksij Rempel, the regmap infrastructure and the main driver is contributed by me. Kurt Van Dijck adds listen-only support, Manivannan Sadhasivam adds himself as maintainer, and Thomas Kopp himself as a reviewer. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-21Merge tag 'mac80211-next-for-net-next-2020-09-21' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next Johannes Berg says: ==================== This time we have: * some AP-side infrastructure for FILS discovery and unsolicited probe resonses * a major rework of the encapsulation/header conversion offload from Felix, to fit better with e.g. AP_VLAN interfaces * performance fix for VHT A-MPDU size, don't limit to HT * some initial patches for S1G (sub 1 GHz) support, more will come in this area * minor cleanups ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-21dax: Fix compilation for CONFIG_DAX && !CONFIG_FS_DAXJan Kara
dax_supported() is defined whenever CONFIG_DAX is enabled. So dummy implementation should be defined only in !CONFIG_DAX case, not in !CONFIG_FS_DAX case. Fixes: e2ec51282545 ("dm: Call proper helper to determine dax support") Cc: <stable@vger.kernel.org> Reported-by: Geert Uytterhoeven <geert@linux-m68k.org> Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org> Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2020-09-21can: rx-offload: can_rx_offload_add_manual(): add new initialization functionMarc Kleine-Budde
This patch adds a new initialization function: can_rx_offload_add_manual() It should be used to add support rx-offload to a driver, if the callback mechanism should not be used. Use e.g. can_rx_offload_queue_sorted() to queue skbs into rx-offload. Link: https://lore.kernel.org/r/20200915223527.1417033-33-mkl@pengutronix.de Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2020-09-21can: dev: can_put_echo_skb(): propagate error in case of errorsMarc Kleine-Budde
The function can_put_echo_skb() can fail for several reasons. It may fail due to OOM, but when it fails it's usually due to locking problems in the driver. In order to help developing and debugging of new drivers propagate error value in case of errors. Link: https://lore.kernel.org/r/20200915223527.1417033-12-mkl@pengutronix.de Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2020-09-21can: include: fix spelling mistakesMarc Kleine-Budde
This patch fixes spelling erros found by "codespell" in the include/linux/can subtree. Link: https://lore.kernel.org/r/20200915223527.1417033-4-mkl@pengutronix.de Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2020-09-20net: dsa: tag_8021q: add VLANs to the master interface tooVladimir Oltean
The whole purpose of tag_8021q is to send VLAN-tagged traffic to the CPU, from which the driver can decode the source port and switch id. Currently this only works if the VLAN filtering on the master is disabled. Change that by explicitly adding code to tag_8021q.c to add the VLANs corresponding to the tags to the filter of the master interface. Because we now need to call vlan_vid_add, then we also need to hold the RTNL mutex. Propagate that requirement to the callers of dsa_8021q_setup and modify the existing call sites as appropriate. Note that one call path, sja1105_best_effort_vlan_filtering_set -> sja1105_vlan_filtering -> sja1105_setup_8021q_tagging, was already holding this lock. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-20Merge tag 'locking_urgent_for_v5.9_rc6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull locking fixes from Borislav Petkov: "Two fixes from the locking/urgent pile: - Fix lockdep's detection of "USED" <- "IN-NMI" inversions (Peter Zijlstra) - Make percpu-rwsem operations on the semaphore's ->read_count IRQ-safe because it can be used in an IRQ context (Hou Tao)" * tag 'locking_urgent_for_v5.9_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: locking/percpu-rwsem: Use this_cpu_{inc,dec}() for read_count locking/lockdep: Fix "USED" <- "IN-NMI" inversions
2020-09-20Merge tag 'libnvdimm-fixes-5.9-rc6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm Pull libnvdimm fixes from Dan Williams: "A handful of fixes to address a string of mistakes in the mechanism for device-mapper to determine if its component devices are dax capable. - Fix an original bug in device-mapper table reference counting when interrogating dax capability in the component device. This bug was hidden by the following bug. - Fix device-mapper to use the proper helper (dax_supported() instead of the leaf helper generic_fsdax_supported()) to determine dax operation of a stacked block device configuration. The original implementation is only valid for one level of dax-capable block device stacking. This bug was discovered while fixing the below regression. - Fix an infinite recursion regression introduced by broken attempts to quiet the generic_fsdax_supported() path and make it bail out before logging "dax capability not found" errors" * tag 'libnvdimm-fixes-5.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: dax: Fix stack overflow when mounting fsdax pmem device dm: Call proper helper to determine dax support dm/dax: Fix table reference counts
2020-09-20net: sctp: Fix IPv6 ancestor_size calc in sctp_copy_descendantHenry Ptasinski
When calculating ancestor_size with IPv6 enabled, simply using sizeof(struct ipv6_pinfo) doesn't account for extra bytes needed for alignment in the struct sctp6_sock. On x86, there aren't any extra bytes, but on ARM the ipv6_pinfo structure is aligned on an 8-byte boundary so there were 4 pad bytes that were omitted from the ancestor_size calculation. This would lead to corruption of the pd_lobby pointers, causing an oops when trying to free the sctp structure on socket close. Fixes: 636d25d557d1 ("sctp: not copy sctp_sock pd_lobby in sctp_copy_descendant") Signed-off-by: Henry Ptasinski <hptasinski@google.com> Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-20Merge tag 'tty-5.9-rc6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty/serial/fbcon fixes from Greg KH: "Here are some small tty/serial and one more fbcon fix. They include: - serial core locking regression fixes - new device ids for 8250_pci driver - fbcon fix for syzbot found issue All have been in linux-next with no reported issues" * tag 'tty-5.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: fbcon: Fix user font detection test at fbcon_resize(). serial: 8250_pci: Add Realtek 816a and 816b serial: core: fix console port-lock regression serial: core: fix port-lock initialisation
2020-09-20dm: Call proper helper to determine dax supportJan Kara
DM was calling generic_fsdax_supported() to determine whether a device referenced in the DM table supports DAX. However this is a helper for "leaf" device drivers so that they don't have to duplicate common generic checks. High level code should call dax_supported() helper which that calls into appropriate helper for the particular device. This problem manifested itself as kernel messages: dm-3: error: dax access failed (-95) when lvm2-testsuite run in cases where a DM device was stacked on top of another DM device. Fixes: 7bf7eac8d648 ("dax: Arrange for dax_supported check to span multiple devices") Cc: <stable@vger.kernel.org> Tested-by: Adrian Huang <ahuang12@lenovo.com> Signed-off-by: Jan Kara <jack@suse.cz> Acked-by: Mike Snitzer <snitzer@redhat.com> Reported-by: kernel test robot <lkp@intel.com> Link: https://lore.kernel.org/r/160061715195.13131.5503173247632041975.stgit@dwillia2-desk3.amr.corp.intel.com Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2020-09-19ethtool: Add 100base-FX link mode entriesDan Murphy
Add entries for the 100base-FX full and half duplex supported modes. $ ethtool eth0 Supported ports: [ FIBRE ] Supported link modes: 100baseFX/Half 100baseFX/Full Supported pause frame use: Symmetric Receive-only Supports auto-negotiation: No Supported FEC modes: Not reported Advertised link modes: 100baseFX/Half 100baseFX/Full Advertised pause frame use: No Advertised auto-negotiation: No Advertised FEC modes: Not reported Speed: 100Mb/s Duplex: Full Auto-negotiation: off Port: MII PHYAD: 1 Transceiver: external Supports Wake-on: gs Wake-on: d SecureOn password: 00:00:00:00:00:00 Current message level: 0x00000000 (0) Link detected: yes Signed-off-by: Dan Murphy <dmurphy@ti.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-19stackleak: let stack_erasing_sysctl take a kernel pointer bufferTobias Klauser
Commit 32927393dc1c ("sysctl: pass kernel pointers to ->proc_handler") changed ctl_table.proc_handler to take a kernel pointer. Adjust the signature of stack_erasing_sysctl to match ctl_table.proc_handler which fixes the following sparse warning: kernel/stackleak.c:31:50: warning: incorrect type in argument 3 (different address spaces) kernel/stackleak.c:31:50: expected void * kernel/stackleak.c:31:50: got void [noderef] __user *buffer Fixes: 32927393dc1c ("sysctl: pass kernel pointers to ->proc_handler") Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Christoph Hellwig <hch@lst.de> Cc: Al Viro <viro@zeniv.linux.org.uk> Link: https://lkml.kernel.org/r/20200907093253.13656-1-tklauser@distanz.ch Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-09-19ftrace: let ftrace_enable_sysctl take a kernel pointer bufferTobias Klauser
Commit 32927393dc1c ("sysctl: pass kernel pointers to ->proc_handler") changed ctl_table.proc_handler to take a kernel pointer. Adjust the signature of ftrace_enable_sysctl to match ctl_table.proc_handler which fixes the following sparse warning: kernel/trace/ftrace.c:7544:43: warning: incorrect type in argument 3 (different address spaces) kernel/trace/ftrace.c:7544:43: expected void * kernel/trace/ftrace.c:7544:43: got void [noderef] __user *buffer Fixes: 32927393dc1c ("sysctl: pass kernel pointers to ->proc_handler") Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Christoph Hellwig <hch@lst.de> Cc: Al Viro <viro@zeniv.linux.org.uk> Link: https://lkml.kernel.org/r/20200907093207.13540-1-tklauser@distanz.ch Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-09-18net: dsa: wire up devlink info getAndrew Lunn
Allow the DSA drivers to implement the devlink call to get info info, e.g. driver name, firmware version, ASIC ID, etc. v2: Combine declaration and the assignment on a single line. Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-18net: dsa: Add devlink regions support to DSAAndrew Lunn
Allow DSA drivers to make use of devlink regions, via simple wrappers. Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-18net: dsa: Add helper to convert from devlink to dsAndrew Lunn
Given a devlink instance, return the dsa switch it is associated to. Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-18net: devlink: region: Pass the region ops to the snapshot functionAndrew Lunn
Pass the region to be snapshotted to the function performing the snapshot. This allows one function to operate on numerous regions. v4: Add missing kerneldoc for ICE Signed-off-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-18net: devlink: regions: Add a priv member to the regions ops structAndrew Lunn
The driver may have multiple regions which can be dumped using one function. However, for this to work, additional information is needed. Add a priv member to the ops structure for the driver to use however it likes. Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-18net: mscc: ocelot: make ocelot_init_timestamp take a const struct ptp_clock_infoVladimir Oltean
It is a good measure to ensure correctness if the structures that are meant to remain constant are only processed by functions that thake constant arguments. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-18ptp_qoriq: support FIPER3Yangbo Lu
The FIPER3 (fixed interval period pulse generator) is supported on DPAA2 and ENETC network controller hardware. This patch is to support it in ptp_qoriq driver. Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com> Acked-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-18net: fix build without CONFIG_SYSCTL definitionMahesh Bandewar
Earlier commit 316cdaa1158a ("net: add option to not create fall-back tunnels in root-ns as well") removed the CONFIG_SYSCTL to enable the kernel-commandline to work. However, this variable gets defined only when CONFIG_SYSCTL option is selected. With this change the behavior would default to creating fall-back tunnels in all namespaces when CONFIG_SYSCTL is not selected and the kernel commandline option will be ignored. Fixes: 316cdaa1158a ("net: add option to not create fall-back tunnels in root-ns as well") Signed-off-by: Mahesh Bandewar <maheshb@google.com> Reported-by: Randy Dunlap <rdunlap@infradead.org> Reported-by: kernel test robot <lkp@intel.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-18tipc: add automatic rekeying for encryption keyTuong Lien
Rekeying is required for security since a key is less secure when using for a long time. Also, key will be detached when its nonce value (or seqno ...) is exhausted. We now make the rekeying process automatic and configurable by user. Basically, TIPC will at a specific interval generate a new key by using the kernel 'Random Number Generator' cipher, then attach it as the node TX key and securely distribute to others in the cluster as RX keys (- the key exchange). The automatic key switching will then take over, and make the new key active shortly. Afterwards, the traffic from this node will be encrypted with the new session key. The same can happen in peer nodes but not necessarily at the same time. For simplicity, the automatically generated key will be initiated as a per node key. It is not too hard to also support a cluster key rekeying (e.g. a given node will generate a unique cluster key and update to the others in the cluster...), but that doesn't bring much benefit, while a per-node key is even more secure. We also enable user to force a rekeying or change the rekeying interval via netlink, the new 'set key' command option: 'TIPC_NLA_NODE_REKEYING' is added for these purposes as follows: - A value >= 1 will be set as the rekeying interval (in minutes); - A value of 0 will disable the rekeying; - A value of 'TIPC_REKEYING_NOW' (~0) will force an immediate rekeying; The default rekeying interval is (60 * 24) minutes i.e. done every day. There isn't any restriction for the value but user shouldn't set it too small or too large which results in an "ineffective" rekeying (thats ok for testing though). Acked-by: Jon Maloy <jmaloy@redhat.com> Signed-off-by: Tuong Lien <tuong.t.lien@dektech.com.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-18tipc: introduce encryption master keyTuong Lien
In addition to the supported cluster & per-node encryption keys for the en/decryption of TIPC messages, we now introduce one option for user to set a cluster key as 'master key', which is simply a symmetric key like the former but has a longer life cycle. It has two purposes: - Authentication of new member nodes in the cluster. New nodes, having no knowledge of current session keys in the cluster will still be able to join the cluster as long as they know the master key. This is because all neighbor discovery (LINK_CONFIG) messages must be encrypted with this key. - Encryption of session encryption keys during automatic exchange and update of those.This is a feature we will introduce in a later commit in this series. We insert the new key into the currently unused slot 0 in the key array and start using it immediately once the user has set it. After joining, a node only knowing the master key should be fully communicable to existing nodes in the cluster, although those nodes may have their own session keys activated (i.e. not the master one). To support this, we define a 'grace period', starting from the time a node itself reports having no RX keys, so the existing nodes will use the master key for encryption instead. The grace period can be extended but will automatically stop after e.g. 5 seconds without a new report. This is also the basis for later key exchanging feature as the new node will be impossible to decrypt anything without the support from master key. For user to set a master key, we define a new netlink flag - 'TIPC_NLA_NODE_KEY_MASTER', so it can be added to the current 'set key' netlink command to specify the setting key to be a master key. Above all, the traditional cluster/per-node key mechanism is guaranteed to work when user comes not to use this master key option. This is also compatible to legacy nodes without the feature supported. Even this master key can be updated without any interruption of cluster connectivity but is so is needed, this has to be coordinated and set by the user. Acked-by: Jon Maloy <jmaloy@redhat.com> Signed-off-by: Tuong Lien <tuong.t.lien@dektech.com.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-18devlink: collect flash notify params into a structShannon Nelson
The dev flash status notify function parameter lists are getting rather long, so add a struct to be filled and passed rather than continuously changing the function signatures. Signed-off-by: Shannon Nelson <snelson@pensando.io> Reviewed-by: Jacob Keller <jacob.e.keller@intel.com> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-18devlink: add timeout information to status_notifyShannon Nelson
Add a timeout element to the DEVLINK_CMD_FLASH_UPDATE_STATUS netlink message for use by a userland utility to show that a particular firmware flash activity may take a long but bounded time to finish. Also add a handy helper for drivers to make use of the new timeout value. UI usage hints: - if non-zero, add timeout display to the end of the status line [component] status_msg ( Xm Ys : Am Bs ) using the timeout value for Am Bs and updating the Xm Ys every second - if the timeout expires while awaiting the next update, display something like [component] status_msg ( timeout reached : Am Bs ) - if new status notify messages are received, remove the timeout and start over Signed-off-by: Shannon Nelson <snelson@pensando.io> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Jacob Keller <jacob.e.keller@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>