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2020-06-01devlink: Add ACL control packet trapsIdo Schimmel
Add packet traps for packets that are sampled / trapped by ACLs, so that capable drivers could register them with devlink. Add documentation for every added packet trap and packet trap group. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-01devlink: Add layer 3 control packet trapsIdo Schimmel
Add layer 3 control packet traps such as ARP and DHCP, so that capable device drivers could register them with devlink. Add documentation for every added packet trap and packet trap group. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-01devlink: Add layer 2 control packet trapsIdo Schimmel
Add layer 2 control packet traps such as STP and IGMP query, so that capable device drivers could register them with devlink. Add documentation for every added packet trap and packet trap group. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-01devlink: Add 'control' trap typeIdo Schimmel
This type is used for traps that trap control packets such as ARP request and IGMP query to the CPU. Do not report such packets to the kernel's drop monitor as they were not dropped by the device no encountered an exception during forwarding. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-01devlink: Add 'mirror' trap actionIdo Schimmel
The action is used by control traps such as IGMP query. The packet is flooded by the device, but also trapped to the CPU in order for the software bridge to mark the receiving port as a multicast router port. Such packets are marked with 'skb->offload_fwd_mark = 1' in order to prevent the software bridge from flooding them again. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-01devlink: Create dedicated trap group for layer 3 exceptionsIdo Schimmel
Packets that hit exceptions during layer 3 forwarding must be trapped to the CPU for the control plane to function properly. Create a dedicated group for them, so that user space could choose to assign a different policer for them. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-31Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netDavid S. Miller
xdp_umem.c had overlapping changes between the 64-bit math fix for the calculation of npgs and the removal of the zerocopy memory type which got rid of the chunk_size_nohdr member. The mlx5 Kconfig conflict is a case where we just take the net-next copy of the Kconfig entry dependency as it takes on the ESWITCH dependency by one level of indirection which is what the 'net' conflicting change is trying to ensure. Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-31checkpatch/coding-style: deprecate 80-column warningJoe Perches
Yes, staying withing 80 columns is certainly still _preferred_. But it's not the hard limit that the checkpatch warnings imply, and other concerns can most certainly dominate. Increase the default limit to 100 characters. Not because 100 characters is some hard limit either, but that's certainly a "what are you doing" kind of value and less likely to be about the occasional slightly longer lines. Miscellanea: - to avoid unnecessary whitespace changes in files, checkpatch will no longer emit a warning about line length when scanning files unless --strict is also used - Add a bit to coding-style about alignment to open parenthesis Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-05-29dt-bindings: net: rename the bindings document for MediaTek STAR EMACBartosz Golaszewski
The driver itself was renamed before getting merged into mainline, but the binding document kept the old name. This makes both names consistent. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-29dt-bindings: net: imx-dwmac: Add NXP imx8 DWMAC glue layerFugang Duan
Add description for NXP imx8 families like imx8mp/imx8dxl that integrate the Synopsys gmac IP version 5.10a. Signed-off-by: Fugang Duan <fugang.duan@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-28rxrpc: add rxrpc_sock_set_min_security_levelChristoph Hellwig
Add a helper to directly set the RXRPC_MIN_SECURITY_LEVEL sockopt from kernel space without going through a fake uaccess. Thanks to David Howells for the documentation updates. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: David Howells <dhowells@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-26net: ethtool: Allow PHY cable test TDR data to configuredAndrew Lunn
Allow the user to configure where on the cable the TDR data should be retrieved, in terms of first and last sample, and the step between samples. Also add the ability to ask for TDR data for just one pair. If this configuration is not provided, it defaults to 1-150m at 1m intervals for all pairs. Signed-off-by: Andrew Lunn <andrew@lunn.ch> v3: Move the TDR configuration into a structure Add a range check on step Use NL_SET_ERR_MSG_ATTR() when appropriate Move TDR configuration into a nest Document attributes in the request Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-26net: ethtool: Add attributes for cable test TDR dataAndrew Lunn
Some Ethernet PHYs can return the raw time domain reflectromatry data. Add the attributes to allow this data to be requested and returned via netlink ethtool. Signed-off-by: Andrew Lunn <andrew@lunn.ch> v2: m -> cm Report what the PHY actually used for start/stop/step. Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-26dt-bindings: fec: update the gpr propertyFugang Duan
- rename the 'gpr' property string to 'fsl,stop-mode'. - Update the property to define gpr register offset and bit in DT, since different instance have different gpr bit. v2: * rename 'gpr' property string to 'fsl,stop-mode'. Signed-off-by: Fugang Duan <fugang.duan@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-25Merge tag 'wireless-drivers-next-2020-05-25' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next Kalle Valo says: ==================== wireless-drivers-next patches for v5.8 Second set of patches for v5.8. Lots of new features and new supported hardware for mt76. Also rtw88 got new hardware support. Major changes: rtw88 * add support for Realtek 8723DE PCI adapter * rename rtw88.ko/rtwpci.ko to rtw88_core.ko/rtw88_pci.ko iwlwifi * stop supporting swcrypto and bt_coex_active module parameters on mvm devices * enable A-AMSDU in low latency mt76 * new devices for mt76x0/mt76x2 * support for non-offload firmware on mt7663 * hw/sched scan support for mt7663 * mt7615/mt7663 MSI support * TDLS support * mt7603/mt7615 rate control fixes * new driver for mt7915 * wowlan support for mt7663 * suspend/resume support for mt7663 ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-24Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netDavid S. Miller
The MSCC bug fix in 'net' had to be slightly adjusted because the register accesses are done slightly differently in net-next. Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-23Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds
Pull networking fixes from David Miller: 1) Fix RCU warnings in ipv6 multicast router code, from Madhuparna Bhowmik. 2) Nexthop attributes aren't being checked properly because of mis-initialized iterator, from David Ahern. 3) Revert iop_idents_reserve() change as it caused performance regressions and was just working around what is really a UBSAN bug in the compiler. From Yuqi Jin. 4) Read MAC address properly from ROM in bmac driver (double iteration proceeds past end of address array), from Jeremy Kerr. 5) Add Microsoft Surface device IDs to r8152, from Marc Payne. 6) Prevent reference to freed SKB in __netif_receive_skb_core(), from Boris Sukholitko. 7) Fix ACK discard behavior in rxrpc, from David Howells. 8) Preserve flow hash across packet scrubbing in wireguard, from Jason A. Donenfeld. 9) Cap option length properly for SO_BINDTODEVICE in AX25, from Eric Dumazet. 10) Fix encryption error checking in kTLS code, from Vadim Fedorenko. 11) Missing BPF prog ref release in flow dissector, from Jakub Sitnicki. 12) dst_cache must be used with BH disabled in tipc, from Eric Dumazet. 13) Fix use after free in mlxsw driver, from Jiri Pirko. 14) Order kTLS key destruction properly in mlx5 driver, from Tariq Toukan. 15) Check devm_platform_ioremap_resource() return value properly in several drivers, from Tiezhu Yang. * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (71 commits) net: smsc911x: Fix runtime PM imbalance on error net/mlx4_core: fix a memory leak bug. net: ethernet: ti: cpsw: fix ASSERT_RTNL() warning during suspend net: phy: mscc: fix initialization of the MACsec protocol mode net: stmmac: don't attach interface until resume finishes net: Fix return value about devm_platform_ioremap_resource() net/mlx5: Fix error flow in case of function_setup failure net/mlx5e: CT: Correctly get flow rule net/mlx5e: Update netdev txq on completions during closure net/mlx5: Annotate mutex destroy for root ns net/mlx5: Don't maintain a case of del_sw_func being null net/mlx5: Fix cleaning unmanaged flow tables net/mlx5: Fix memory leak in mlx5_events_init net/mlx5e: Fix inner tirs handling net/mlx5e: kTLS, Destroy key object after destroying the TIS net/mlx5e: Fix allowed tc redirect merged eswitch offload cases net/mlx5: Avoid processing commands before cmdif is ready net/mlx5: Fix a race when moving command interface to events mode net/mlx5: Add command entry handling completion rxrpc: Fix a memory leak in rxkad_verify_response() ...
2020-05-23net: devres: provide devm_register_netdev()Bartosz Golaszewski
Provide devm_register_netdev() - a device resource managed variant of register_netdev(). This new helper will only work for net_device structs that are also already managed by devres. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-23Documentation: devres: add a missing section for networking helpersBartosz Golaszewski
Add a new section for networking devres helpers to devres.rst and list the two existing devm functions. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-22Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-nextDavid S. Miller
Daniel Borkmann says: ==================== pull-request: bpf-next 2020-05-23 The following pull-request contains BPF updates for your *net-next* tree. We've added 50 non-merge commits during the last 8 day(s) which contain a total of 109 files changed, 2776 insertions(+), 2887 deletions(-). The main changes are: 1) Add a new AF_XDP buffer allocation API to the core in order to help lowering the bar for drivers adopting AF_XDP support. i40e, ice, ixgbe as well as mlx5 have been moved over to the new API and also gained a small improvement in performance, from Björn Töpel and Magnus Karlsson. 2) Add getpeername()/getsockname() attach types for BPF sock_addr programs in order to allow for e.g. reverse translation of load-balancer backend to service address/port tuple from a connected peer, from Daniel Borkmann. 3) Improve the BPF verifier is_branch_taken() logic to evaluate pointers being non-NULL, e.g. if after an initial test another non-NULL test on that pointer follows in a given path, then it can be pruned right away, from John Fastabend. 4) Larger rework of BPF sockmap selftests to make output easier to understand and to reduce overall runtime as well as adding new BPF kTLS selftests that run in combination with sockmap, also from John Fastabend. 5) Batch of misc updates to BPF selftests including fixing up test_align to match verifier output again and moving it under test_progs, allowing bpf_iter selftest to compile on machines with older vmlinux.h, and updating config options for lirc and v6 segment routing helpers, from Stanislav Fomichev, Andrii Nakryiko and Alan Maguire. 6) Conversion of BPF tracing samples outdated internal BPF loader to use libbpf API instead, from Daniel T. Lee. 7) Follow-up to BPF kernel test infrastructure in order to fix a flake in the XDP selftests, from Jesper Dangaard Brouer. 8) Minor improvements to libbpf's internal hashmap implementation, from Ian Rogers. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-23selftests/bpf: Add general instructions for test executionAlan Maguire
Getting a clean BPF selftests run involves ensuring latest trunk LLVM/clang are used, pahole is recent (>=1.16) and config matches the specified config file as closely as possible. Add to bpf_devel_QA.rst and point tools/testing/selftests/bpf/README.rst to it. Signed-off-by: Alan Maguire <alan.maguire@oracle.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Andrii Nakryiko <andriin@fb.com> Link: https://lore.kernel.org/bpf/1590146674-25485-1-git-send-email-alan.maguire@oracle.com
2020-05-22dt-bindings: net: add a binding document for MediaTek STAR Ethernet MACBartosz Golaszewski
This adds yaml DT bindings for the MediaTek STAR Ethernet MAC present on the mt8* family of SoCs. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-22dt-bindings: add new compatible to mediatek,pericfgBartosz Golaszewski
The PERICFG controller is present on the MT8516 SoC. Add an appropriate compatible variant. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-22dt-bindings: convert the binding document for mediatek PERICFG to yamlBartosz Golaszewski
Convert the DT binding .txt file for MediaTek's peripheral configuration controller to YAML. There's one special case where the compatible has three positions. Otherwise, it's a pretty normal syscon. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-21ice: report netlist version in .info_getJacob Keller
The flash memory for the ice hardware contains a block of information used for link management called the Netlist module. As this essentially represents another section of firmware, add its version information to the output of the driver's .info_get handler. This includes both a version and the first few bytes of a hash of the module contents. fw.netlist -> the version information extracted from the netlist module fw.netlist.build-> first 4 bytes of the hash of the contents, similar to fw.mgmt.build Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-05-21ethtool: provide UAPI for PHY Signal Quality Index (SQI)Oleksij Rempel
Signal Quality Index is a mandatory value required by "OPEN Alliance SIG" for the 100Base-T1 PHYs [1]. This indicator can be used for cable integrity diagnostic and investigating other noise sources and implement by at least two vendors: NXP[2] and TI[3]. [1] http://www.opensig.org/download/document/218/Advanced_PHY_features_for_automotive_Ethernet_V1.0.pdf [2] https://www.nxp.com/docs/en/data-sheet/TJA1100.pdf [3] https://www.ti.com/product/DP83TC811R-Q1 Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Michal Kubecek <mkubecek@suse.cz> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-17dt-bindings: net: dsa: b53: Add missing size and address cells to exampleKurt Kanzenbach
Add the missing size and address cells to the b53 example. Otherwise, it may not compile or issue warnings if directly copied into a device tree. Signed-off-by: Kurt Kanzenbach <kurt@linutronix.de> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-17Merge tag 'usb-5.7-rc6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB fixes from Greg KH: "Here are a number of USB fixes for 5.7-rc6 The "largest" in here is a bunch of raw-gadget fixes and api changes as the driver just showed up in -rc1 and work has been done to fix up some uapi issues found with the original submission, before it shows up in a -final release. Other than that, a bunch of other small USB gadget fixes, xhci fixes, some quirks, andother tiny fixes for reported issues. All of these have been in linux-next with no reported issues" * tag 'usb-5.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (26 commits) USB: gadget: fix illegal array access in binding with UDC usb: core: hub: limit HUB_QUIRK_DISABLE_AUTOSUSPEND to USB5534B USB: usbfs: fix mmap dma mismatch usb: host: xhci-plat: keep runtime active when removing host usb: xhci: Fix NULL pointer dereference when enqueuing trbs from urb sg list usb: cdns3: gadget: make a bunch of functions static usb: mtu3: constify struct debugfs_reg32 usb: gadget: udc: atmel: Make some symbols static usb: raw-gadget: fix null-ptr-deref when reenabling endpoints usb: raw-gadget: documentation updates usb: raw-gadget: support stalling/halting/wedging endpoints usb: raw-gadget: fix gadget endpoint selection usb: raw-gadget: improve uapi headers comments usb: typec: mux: intel: Fix DP_HPD_LVL bit field usb: raw-gadget: fix return value of ep read ioctls usb: dwc3: select USB_ROLE_SWITCH usb: gadget: legacy: fix error return code in gncm_bind() usb: gadget: legacy: fix error return code in cdc_bind() usb: gadget: legacy: fix redundant initialization warnings usb: gadget: tegra-xudc: Fix idle suspend/resume ...
2020-05-16netns: enable to inherit devconf from current netnsNicolas Dichtel
The goal is to be able to inherit the initial devconf parameters from the current netns, ie the netns where this new netns has been created. This is useful in a containers environment where /proc/sys is read only. For example, if a pod is created with specifics devconf parameters and has the capability to create netns, the user expects to get the same parameters than his 'init_net', which is not the real init_net in this case. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-16Merge tag 'arm-soc-fixes-5.7' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull ARM SoC/dt fixes from Arnd Bergmann: "This round of fixes is almost exclusively device tree changes, with trivial defconfig fixes and one compiler warning fix added in. A number of patches are to fix dtc warnings, in particular on Amlogic, i.MX and Rockchips. Other notable changes include: Renesas: - Fix a wrong clock configuration on R-Mobile A1 - Fix IOMMU support on R-Car V3H Allwinner - Multiple audio fixes Qualcomm - Use a safe CPU voltage on MSM8996 - Fixes to match a late audio driver change Rockchip: - Some fixes for the newly added Pinebook Pro NXP i.MX: - Fix I2C1 pinctrl configuration for i.MX27 phytec-phycard board - Fix imx6dl-yapp4-ursa board Ethernet connection OMAP: - A regression fix for non-existing can device on am534x-idk - Fix flakey wlan on droid4 where some devices would not connect at all because of internal pull being used with an external pull - Fix occasional missed wake-up events on droid4 modem uart" * tag 'arm-soc-fixes-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (51 commits) ARM: dts: iwg20d-q7-dbcm-ca: Remove unneeded properties in hdmi@39 ARM: dts: renesas: Make hdmi encoder nodes compliant with DT bindings arm64: dts: renesas: Make hdmi encoder nodes compliant with DT bindings arm64: defconfig: add MEDIA_PLATFORM_SUPPORT arm64: defconfig: ARCH_R8A7795: follow changed config symbol name arm64: defconfig: add DRM_DISPLAY_CONNECTOR arm64: defconfig: DRM_DUMB_VGA_DAC: follow changed config symbol name ARM: oxnas: make ox820_boot_secondary static ARM: dts: r8a7740: Add missing extal2 to CPG node ARM: dts: omap4-droid4: Fix occasional lost wakeirq for uart1 ARM: dts: omap4-droid4: Fix flakey wlan by disabling internal pull for gpio arm64: dts: allwinner: a64: Remove unused SPDIF sound card arm64: dts: allwinner: a64: pinetab: Fix cpvdd supply name arm64: dts: meson-g12: remove spurious blank line arm64: dts: meson-g12b-khadas-vim3: add missing frddr_a status property arm64: dts: meson-g12-common: fix dwc2 clock names arm64: dts: meson-g12b-ugoos-am6: fix usb vbus-supply arm64: dts: freescale: imx8mp: update input_val for AUDIOMIX_BIT_STREAM ARM: dts: r7s9210: Remove bogus clock-names from OSTM nodes ARM: dts: rockchip: fix pinctrl sub nodename for spi in rk322x.dtsi ...
2020-05-15Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netDavid S. Miller
Move the bpf verifier trace check into the new switch statement in HEAD. Resolve the overlapping changes in hinic, where bug fixes overlap the addition of VF support. Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-15Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds
Pull networking fixes from David Miller: 1) Fix sk_psock reference count leak on receive, from Xiyu Yang. 2) CONFIG_HNS should be invisible, from Geert Uytterhoeven. 3) Don't allow locking route MTUs in ipv6, RFCs actually forbid this, from Maciej Żenczykowski. 4) ipv4 route redirect backoff wasn't actually enforced, from Paolo Abeni. 5) Fix netprio cgroup v2 leak, from Zefan Li. 6) Fix infinite loop on rmmod in conntrack, from Florian Westphal. 7) Fix tcp SO_RCVLOWAT hangs, from Eric Dumazet. 8) Various bpf probe handling fixes, from Daniel Borkmann. * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (68 commits) selftests: mptcp: pm: rm the right tmp file dpaa2-eth: properly handle buffer size restrictions bpf: Restrict bpf_trace_printk()'s %s usage and add %pks, %pus specifier bpf: Add bpf_probe_read_{user, kernel}_str() to do_refine_retval_range bpf: Restrict bpf_probe_read{, str}() only to archs where they work MAINTAINERS: Mark networking drivers as Maintained. ipmr: Add lockdep expression to ipmr_for_each_table macro ipmr: Fix RCU list debugging warning drivers: net: hamradio: Fix suspicious RCU usage warning in bpqether.c net: phy: broadcom: fix BCM54XX_SHD_SCR3_TRDDAPD value for BCM54810 tcp: fix error recovery in tcp_zerocopy_receive() MAINTAINERS: Add Jakub to networking drivers. MAINTAINERS: another add of Karsten Graul for S390 networking drivers: ipa: fix typos for ipa_smp2p structure doc pppoe: only process PADT targeted at local interfaces selftests/bpf: Enforce returning 0 for fentry/fexit programs bpf: Enforce returning 0 for fentry/fexit progs net: stmmac: fix num_por initialization security: Fix the default value of secid_to_secctx hook libbpf: Fix register naming in PT_REGS s390 macros ...
2020-05-15bpf: Restrict bpf_trace_printk()'s %s usage and add %pks, %pus specifierDaniel Borkmann
Usage of plain %s conversion specifier in bpf_trace_printk() suffers from the very same issue as bpf_probe_read{,str}() helpers, that is, it is broken on archs with overlapping address ranges. While the helpers have been addressed through work in 6ae08ae3dea2 ("bpf: Add probe_read_{user, kernel} and probe_read_{user, kernel}_str helpers"), we need an option for bpf_trace_printk() as well to fix it. Similarly as with the helpers, force users to make an explicit choice by adding %pks and %pus specifier to bpf_trace_printk() which will then pick the corresponding strncpy_from_unsafe*() variant to perform the access under KERNEL_DS or USER_DS. The %pk* (kernel specifier) and %pu* (user specifier) can later also be extended for other objects aside strings that are probed and printed under tracing, and reused out of other facilities like bpf_seq_printf() or BTF based type printing. Existing behavior of %s for current users is still kept working for archs where it is not broken and therefore gated through CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE. For archs not having this property we fall-back to pick probing under KERNEL_DS as a sensible default. Fixes: 8d3b7dce8622 ("bpf: add support for %s specifier to bpf_trace_printk()") Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Reported-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Brendan Gregg <brendan.d.gregg@gmail.com> Link: https://lore.kernel.org/bpf/20200515101118.6508-4-daniel@iogearbox.net
2020-05-14dt-bindings: dp83867: Convert DP83867 to yamlDan Murphy
Convert the dp83867 binding to yaml. Signed-off-by: Dan Murphy <dmurphy@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-14dt-bindings: net: dp83869: Update licensing infoDan Murphy
Add BSD 2 Clause to the licensing. CC: Rob Herring <robh@kernel.org> Signed-off-by: Dan Murphy <dmurphy@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-14usb: raw-gadget: documentation updatesAndrey Konovalov
Mention the issue with fixed UDC addresses. Links external examples and test suite. Add more implmenetation details and potential improvements. Signed-off-by: Andrey Konovalov <andreyknvl@google.com> Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-05-14usb: raw-gadget: support stalling/halting/wedging endpointsAndrey Konovalov
Raw Gadget is currently unable to stall/halt/wedge gadget endpoints, which is required for proper emulation of certain USB classes. This patch adds a few more ioctls: - USB_RAW_IOCTL_EP0_STALL allows to stall control endpoint #0 when there's a pending setup request for it. - USB_RAW_IOCTL_SET/CLEAR_HALT/WEDGE allow to set/clear halt/wedge status on non-control non-isochronous endpoints. Fixes: f2c2e717642c ("usb: gadget: add raw-gadget interface") Signed-off-by: Andrey Konovalov <andreyknvl@google.com> Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-05-14usb: raw-gadget: fix gadget endpoint selectionAndrey Konovalov
Currently automatic gadget endpoint selection based on required features doesn't work. Raw Gadget tries iterating over the list of available endpoints and finding one that has the right direction and transfer type. Unfortunately selecting arbitrary gadget endpoints (even if they satisfy feature requirements) doesn't work, as (depending on the UDC driver) they might have fixed addresses, and one also needs to provide matching endpoint addresses in the descriptors sent to the host. The composite framework deals with this by assigning endpoint addresses in usb_ep_autoconfig() before enumeration starts. This approach won't work with Raw Gadget as the endpoints are supposed to be enabled after a set_configuration/set_interface request from the host, so it's too late to patch the endpoint descriptors that had already been sent to the host. For Raw Gadget we take another approach. Similarly to GadgetFS, we allow the user to make the decision as to which gadget endpoints to use. This patch adds another Raw Gadget ioctl USB_RAW_IOCTL_EPS_INFO that exposes information about all non-control endpoints that a currently connected UDC has. This information includes endpoints addresses, as well as their capabilities and limits to allow the user to choose the most fitting gadget endpoint. The USB_RAW_IOCTL_EP_ENABLE ioctl is updated to use the proper endpoint validation routine usb_gadget_ep_match_desc(). These changes affect the portability of the gadgets that use Raw Gadget when running on different UDCs. Nevertheless, as long as the user relies on the information provided by USB_RAW_IOCTL_EPS_INFO to dynamically choose endpoint addresses, UDC-agnostic gadgets can still be written with Raw Gadget. Fixes: f2c2e717642c ("usb: gadget: add raw-gadget interface") Signed-off-by: Andrey Konovalov <andreyknvl@google.com> Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-05-14Merge tag 'imx-fixes-5.7' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/fixes i.MX fixes for 5.7: - Set correct AHB clock for i.MX8MN SDMA1 device to fix a "Timeout waiting for CH0" error. - Fix a linker error for i.MX6 configurations that have ARM_CPU_SUSPEND=n, which can happen if neither CONFIG_PM, CONFIG_CPU_IDLE, nor ARM_PSCI_FW are selected. - Fix I2C1 pinctrl configuration for i.MX27 phytec-phycard board. - Fix i.MX8M AIPS 'reg' properties to remove DTC simple_bus_reg warnings. - Add missing compatible "fsl,vf610-edma" for LS1028A EDMA device, so that bootloader can fix up the IOMMU entries there. Otherwise, EDMA just doesn't work on LS1028A with shipped bootloader. - Fix imx6dl-yapp4-ursa board Ethernet connection. - Fix input_val for AUDIOMIX_BIT_STREAM pinctrl defines on i.MX8MP according to Reference Manual. * tag 'imx-fixes-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: arm64: dts: freescale: imx8mp: update input_val for AUDIOMIX_BIT_STREAM arm64: dts: imx8m: Fix AIPS reg properties arm64: dts: imx8mn: Change SDMA1 ahb clock for imx8mn ARM: dts: imx27-phytec-phycard-s-rdk: Fix the I2C1 pinctrl entries ARM: imx: provide v7_cpu_resume() only on ARM_CPU_SUSPEND=y ARM: dts: imx6dl-yapp4: Fix Ursa board Ethernet connection arm64: dts: ls1028a: add "fsl,vf610-edma" compatible dt-bindings: dma: fsl-edma: fix ls1028a-edma compatible Link: https://lore.kernel.org/r/20200429063226.GT32592@dragon Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-05-13dt-bindings: net: dwmac-meson: Document the "timing-adjustment" clockMartin Blumenstingl
The PRG_ETHERNET registers can add an RX delay in RGMII mode. This requires an internal re-timing circuit whose input clock is called "timing adjustment clock". Document this clock input so the clock can be enabled as needed. Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-13dt-bindings: net: meson-dwmac: Add the amlogic,rx-delay-ns propertyMartin Blumenstingl
The PRG_ETHERNET registers on Meson8b and newer SoCs can add an RX delay. Add a property with the known supported values so it can be configured according to the board layout. Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-13Merge branch 'for-upstream' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next Johan Hedberg says: ==================== pull request: bluetooth-next 2020-05-13 Here's a second attempt at a bluetooth-next pull request which supercedes the one dated 2020-05-09. This should have the issues discovered by Jakub fixed. - Add support for Intel Typhoon Peak device (8087:0032) - Add device tree bindings for Realtek RTL8723BS device - Add device tree bindings for Qualcomm QCA9377 device - Add support for experimental features configuration through mgmt - Add driver hook to prevent wake from suspend - Add support for waiting for L2CAP disconnection response - Multiple fixes & cleanups to the btbcm driver - Add support for LE scatternet topology for selected devices - A few other smaller fixes & cleanups Please let me know if there are any issues pulling. Thanks. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-12docs: net: dsa: sja1105: document the best_effort_vlan_filtering optionVladimir Oltean
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>
2020-05-12dt-bindings: net: Convert UniPhier AVE4 controller to json-schemaKunihiko Hayashi
Convert the UniPhier AVE4 controller binding to DT schema format. Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-12ionic: update doc filesShannon Nelson
Update the basic doc file with some configuration hints and a little bit of stats information. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-12dt-bindings: net: wireless: mt76: document mediatek,eeprom-merge-otp propertyFelix Fietkau
It is used to enable merging of Flash EEPROM data with OTP ROM calibration. Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-05-11dt-bindings: net: bluetooth: Add rtl8723bs-bluetoothVasily Khoruzhick
Add binding document for bluetooth part of RTL8723BS/RTL8723CS Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com> Signed-off-by: Alistair Francis <alistair@alistair23.me> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2020-05-10net: ethtool: Add attributes for cable test reportsAndrew Lunn
Add the attributes needed to report cable test results to userspace. The reports are expected to be per twisted pair. A nested property per pair can report the result of the cable test. A nested property can also report the length of the cable to any fault. v2: Grammar fixes Change length from u16 to u32 s/DEV/HEADER/g Add status attributes Rename pairs from numbers to letters. v3: Fixed example in document Add ETHTOOL_A_CABLE_NEST_* enum Add ETHTOOL_MSG_CABLE_TEST_NTF to documentation Signed-off-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Michal Kubecek <mkubecek@suse.cz> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-05-10net: ethtool: netlink: Add support for triggering a cable testAndrew Lunn
Add new ethtool netlink calls to trigger the starting of a PHY cable test. Add Kconfig'ury to ETHTOOL_NETLINK so that PHYLIB is not a module when ETHTOOL_NETLINK is builtin, which would result in kernel linking errors. v2: Remove unwanted white space change Remove ethnl_cable_test_act_ops and use doit handler Rename cable_test_set_policy cable_test_act_policy Remove ETHTOOL_MSG_CABLE_TEST_ACT_REPLY v3: Remove ETHTOOL_MSG_CABLE_TEST_ACT_REPLY from documentation Remove unused cable_test_get_policy Add Reviewed-by tags v4: Remove unwanted blank line Signed-off-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Michal Kubecek <mkubecek@suse.cz> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-05-07dt-binding: net: ti: am65x-cpts: make reg and compatible requiredGrygorii Strashko
This patch follows K3 CPTS review comments from Rob Herring <robh@kernel.org>. - "reg" and "compatible" properties are required now - minor format changes - K3 CPTS example added to K3 MCU CPSW bindings Cc: Rob Herring <robh@kernel.org> Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>