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2019-10-14Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-nextDavid S. Miller
Alexei Starovoitov says: ==================== pull-request: bpf-next 2019-10-14 The following pull-request contains BPF updates for your *net-next* tree. 12 days of development and 85 files changed, 1889 insertions(+), 1020 deletions(-) The main changes are: 1) auto-generation of bpf_helper_defs.h, from Andrii. 2) split of bpf_helpers.h into bpf_{helpers, helper_defs, endian, tracing}.h and move into libbpf, from Andrii. 3) Track contents of read-only maps as scalars in the verifier, from Andrii. 4) small x86 JIT optimization, from Daniel. 5) cross compilation support, from Ivan. 6) bpf flow_dissector enhancements, from Jakub and Stanislav. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-13Merge tag 'mac80211-next-for-net-next-2019-10-11' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next Johannes Berg says: ==================== A few more small things, nothing really stands out: * minstrel improvements from Felix * a TX aggregation simplification * some additional capabilities for hwsim * minor cleanups & docs updates ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-11devlink: propagate extack down to health reporter opsJiri Pirko
During health reporter operations, driver might want to fill-up the extack message, so propagate extack down to the health reporter ops. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-11bpf: Align struct bpf_prog_statsEric Dumazet
Do not risk spanning these small structures on two cache lines. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20191011181140.2898-1-edumazet@google.com
2019-10-09net/smc: no new connections on disappearing devicesUrsula Braun
Add a "going_away" indication to ISM devices and IB ports and avoid creation of new connections on such disappearing devices. And do not handle ISM events if ISM device is disappearing. Signed-off-by: Ursula Braun <ubraun@linux.ibm.com> Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-09net/smc: separate locks for SMCD and SMCR link group listsUrsula Braun
This patch introduces separate locks for the split SMCD and SMCR link group lists. Signed-off-by: Ursula Braun <ubraun@linux.ibm.com> Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-09net/smc: separate SMCD and SMCR link group listsUrsula Braun
Currently SMCD and SMCR link groups are maintained in one list. To facilitate abnormal termination handling they are split into a separate list for SMCR link groups and separate lists for SMCD link groups per SMCD device. Signed-off-by: Ursula Braun <ubraun@linux.ibm.com> Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-09DIM: fix dim.h kernel-doc and headersRandy Dunlap
Lots of fixes to kernel-doc in structs, enums, and functions. Also add header files that are being used but not yet #included. Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Yamin Friedman <yaminf@mellanox.com> Cc: Tal Gilboa <talgi@mellanox.com> Cc: Saeed Mahameed <saeedm@mellanox.com> Cc: Doug Ledford <dledford@redhat.com> Cc: Jason Gunthorpe <jgg@mellanox.com> Cc: linux-rdma@vger.kernel.org Cc: netdev@vger.kernel.org Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-09sctp: add SCTP_SEND_FAILED_EVENT eventXin Long
This patch is to add a new event SCTP_SEND_FAILED_EVENT described in rfc6458#section-6.1.11. It's a update of SCTP_SEND_FAILED event: struct sctp_sndrcvinfo ssf_info is replaced with struct sctp_sndinfo ssfe_info in struct sctp_send_failed_event. SCTP_SEND_FAILED is being deprecated, but we don't remove it in this patch. Both are being processed in sctp_datamsg_destroy() when the corresp event flag is set. Signed-off-by: Xin Long <lucien.xin@gmail.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-09sctp: add SCTP_ADDR_ADDED eventXin Long
A helper sctp_ulpevent_nofity_peer_addr_change() will be extracted to make peer_addr_change event and enqueue it, and the helper will be called in sctp_assoc_add_peer() to send SCTP_ADDR_ADDED event. This event is described in rfc6458#section-6.1.2: SCTP_ADDR_ADDED: The address is now part of the association. Signed-off-by: Xin Long <lucien.xin@gmail.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-09Merge tag 'spi-ptp-api' of ↵Jakub Kicinski
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi Pull in a dependency for Vladimir's work on more precise packet time stamping. Mark Brown says: ==================== spi: Add a PTP API For detailed timestamping of operations. ==================== Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-08Revert "tun: call dev_get_valid_name() before register_netdevice()"Eric Dumazet
This reverts commit 0ad646c81b2182f7fa67ec0c8c825e0ee165696d. As noticed by Jakub, this is no longer needed after commit 11fc7d5a0a2d ("tun: fix memory leak in error path") This no longer exports dev_get_valid_name() for the exclusive use of tun driver. Suggested-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-08spi: Add a PTP system timestamp to the transfer structureVladimir Oltean
SPI is one of the interfaces used to access devices which have a POSIX clock driver (real time clocks, 1588 timers etc). The fact that the SPI bus is slow is not what the main problem is, but rather the fact that drivers don't take a constant amount of time in transferring data over SPI. When there is a high delay in the readout of time, there will be uncertainty in the value that has been read out of the peripheral. When that delay is constant, the uncertainty can at least be approximated with a certain accuracy which is fine more often than not. Timing jitter occurs all over in the kernel code, and is mainly caused by having to let go of the CPU for various reasons such as preemption, servicing interrupts, going to sleep, etc. Another major reason is CPU dynamic frequency scaling. It turns out that the problem of retrieving time from a SPI peripheral with high accuracy can be solved by the use of "PTP system timestamping" - a mechanism to correlate the time when the device has snapshotted its internal time counter with the Linux system time at that same moment. This is sufficient for having a precise time measurement - it is not necessary for the whole SPI transfer to be transmitted "as fast as possible", or "as low-jitter as possible". The system has to be low-jitter for a very short amount of time to be effective. This patch introduces a PTP system timestamping mechanism in struct spi_transfer. This is to be used by SPI device drivers when they need to know the exact time at which the underlying device's time was snapshotted. More often than not, SPI peripherals have a very exact timing for when their SPI-to-interconnect bridge issues a transaction for snapshotting and reading the time register, and that will be dependent on when the SPI-to-interconnect bridge figures out that this is what it should do, aka as soon as it sees byte N of the SPI transfer. Since spi_device drivers are the ones who'd know best how the peripheral behaves in this regard, expose a mechanism in spi_transfer which allows them to specify which word (or word range) from the transfer should be timestamped. Add a default implementation of the PTP system timestamping in the SPI core. This is not going to be satisfactory performance-wise, but should at least increase the likelihood that SPI device drivers will use PTP system timestamping in the future. There are 3 entry points from the core towards the SPI controller drivers: - transfer_one: The driver is passed individual spi_transfers to execute. This is the easiest to timestamp. - transfer_one_message: The core passes the driver an entire spi_message (a potential batch of spi_transfers). The core puts the same pre and post timestamp to all transfers within a message. This is not ideal, but nothing better can be done by default anyway, since the core has no insight into how the driver batches the transfers. - transfer: Like transfer_one_message, but for unqueued drivers (i.e. the driver implements its own queue scheduling). Signed-off-by: Vladimir Oltean <olteanv@gmail.com> Link: https://lore.kernel.org/r/20190905010114.26718-3-olteanv@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>
2019-10-07net/tls: store decrypted on a single bitJakub Kicinski
Use a single bit instead of boolean to remember if packet was already decrypted. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-07net/tls: store async_capable on a single bitJakub Kicinski
Store async_capable on a single bit instead of a full integer to save space. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-07net/tls: pass context to tls_device_decrypted()Jakub Kicinski
Avoid unnecessary pointer chasing and calculations, callers already have most of the state tls_device_decrypted() needs. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-07net: sockmap: use bitmap for copy infoJakub Kicinski
Don't use bool array in struct sk_msg_sg, save 12 bytes. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-07ipv6: Make ipv6_mc_may_pull() return bool.David S. Miller
Consistent with how pskb_may_pull() also now does so. Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-07net: core: change return type of pskb_may_pull to boolHeiner Kallweit
This function de-facto returns a bool, so let's change the return type accordingly. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-06uapi/bpf: fix helper docsAndrii Nakryiko
Various small fixes to BPF helper documentation comments, enabling automatic header generation with a list of BPF helpers. Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2019-10-06net: genetlink: remove unused genl_family_attrbuf()Jiri Pirko
genl_family_attrbuf() function is no longer used by anyone, so remove it. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-06net: genetlink: parse attrs and store in contect info struct during dumpitJiri Pirko
Extend the dumpit info struct for attrs. Instead of existing attribute validation do parse them and save in the info struct. Caller can benefit from this and does not have to do parse itself. In order to properly free attrs, genl_family pointer needs to be added to dumpit info struct as well. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-06net: genetlink: introduce dump info struct to be available during dumpit opJiri Pirko
Currently the cb->data is taken by ops during non-parallel dumping. Introduce a new structure genl_dumpit_info and store the ops there. Distribute the info to both non-parallel and parallel dumping. Also add a helper genl_dumpit_info() to easily get the info structure in the dumpit callback from cb. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-05net: devlink: export devlink net setterJiri Pirko
For newly allocated devlink instance allow drivers to set net struct Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-05net/tls: add TlsDeviceRxResync statisticJakub Kicinski
Add a statistic for number of RX resyncs sent down to the NIC. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-05net/tls: add TlsDecryptError statJakub Kicinski
Add a statistic for TLS record decryption errors. Since devices are supposed to pass records as-is when they encounter errors this statistic will count bad records in both pure software and inline crypto configurations. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-05net/tls: add statistics for installed sessionsJakub Kicinski
Add SNMP stats for number of sockets with successfully installed sessions. Break them down to software and hardware ones. Note that if hardware offload fails stack uses software implementation, and counts the session appropriately. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-05net/tls: add skeleton of MIB statisticsJakub Kicinski
Add a skeleton structure for adding TLS statistics. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-05net/tls: add tracing for device/offload eventsJakub Kicinski
Add tracing of device-related interaction to aid performance analysis, especially around resync: tls:tls_device_offload_set tls:tls_device_rx_resync_send tls:tls_device_rx_resync_nh_schedule tls:tls_device_rx_resync_nh_delay tls:tls_device_tx_resync_req tls:tls_device_tx_resync_send Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-05Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netDavid S. Miller
2019-10-05Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds
Pull networking fixes from David Miller: 1) Fix ieeeu02154 atusb driver use-after-free, from Johan Hovold. 2) Need to validate TCA_CBQ_WRROPT netlink attributes, from Eric Dumazet. 3) txq null deref in mac80211, from Miaoqing Pan. 4) ionic driver needs to select NET_DEVLINK, from Arnd Bergmann. 5) Need to disable bh during nft_connlimit GC, from Pablo Neira Ayuso. 6) Avoid division by zero in taprio scheduler, from Vladimir Oltean. 7) Various xgmac fixes in stmmac driver from Jose Abreu. 8) Avoid 64-bit division in mlx5 leading to link errors on 32-bit from Michal Kubecek. 9) Fix bad VLAN check in rtl8366 DSA driver, from Linus Walleij. 10) Fix sleep while atomic in sja1105, from Vladimir Oltean. 11) Suspend/resume deadlock in stmmac, from Thierry Reding. 12) Various UDP GSO fixes from Josh Hunt. 13) Fix slab out of bounds access in tcp_zerocopy_receive(), from Eric Dumazet. 14) Fix OOPS in __ipv6_ifa_notify(), from David Ahern. 15) Memory leak in NFC's llcp_sock_bind, from Eric Dumazet. * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (72 commits) selftests/net: add nettest to .gitignore net: qlogic: Fix memory leak in ql_alloc_large_buffers nfc: fix memory leak in llcp_sock_bind() sch_dsmark: fix potential NULL deref in dsmark_init() net: phy: at803x: use operating parameters from PHY-specific status net: phy: extract pause mode net: phy: extract link partner advertisement reading net: phy: fix write to mii-ctrl1000 register ipv6: Handle missing host route in __ipv6_ifa_notify net: phy: allow for reset line to be tied to a sleepy GPIO controller net: ipv4: avoid mixed n_redirects and rate_tokens usage r8152: Set macpassthru in reset_resume callback cxgb4:Fix out-of-bounds MSI-X info array access Revert "ipv6: Handle race in addrconf_dad_work" net: make sock_prot_memory_pressure() return "const char *" rxrpc: Fix rxrpc_recvmsg tracepoint qmi_wwan: add support for Cinterion CLS8 devices tcp: fix slab-out-of-bounds in tcp_zerocopy_receive() lib: textsearch: fix escapes in example code udp: only do GSO if # of segs > 1 ...
2019-10-04net: phy: extract pause modeRussell King
Extract the update of phylib's software pause mode state from genphy_read_status(), so that we can re-use this functionality with PHYs that have alternative ways to read the negotiation results. Tested-by: tinywrkb <tinywrkb@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-04net: phy: extract link partner advertisement readingRussell King
Move reading the link partner advertisement out of genphy_read_status() into its own separate function. This will allow re-use of this code by PHY drivers that are able to read the resolved status from the PHY. Tested-by: tinywrkb <tinywrkb@gmail.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-04net: phy: fix write to mii-ctrl1000 registerRussell King
When userspace writes to the MII_ADVERTISE register, we update phylib's advertising mask and trigger a renegotiation. However, writing to the MII_CTRL1000 register, which contains the gigabit advertisement, does neither. This can lead to phylib's copy of the advertisement becoming de-synced with the values in the PHY register set, which can result in incorrect negotiation resolution. Fixes: 5502b218e001 ("net: phy: use phy_resolve_aneg_linkmode in genphy_read_status") Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-04net: spread "enum sock_flags"Alexey Dobriyan
Some ints are "enum sock_flags" in fact. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-04net, uapi: fix -Wpointer-arith warningsAlexey Dobriyan
Add casts to fix these warnings: ./usr/include/linux/netfilter_arp/arp_tables.h:200:19: error: pointer of type 'void *' used in arithmetic [-Werror=pointer-arith] ./usr/include/linux/netfilter_bridge/ebtables.h:197:19: error: pointer of type 'void *' used in arithmetic [-Werror=pointer-arith] ./usr/include/linux/netfilter_ipv4/ip_tables.h:223:19: error: pointer of type 'void *' used in arithmetic [-Werror=pointer-arith] ./usr/include/linux/netfilter_ipv6/ip6_tables.h:263:19: error: pointer of type 'void *' used in arithmetic [-Werror=pointer-arith] ./usr/include/linux/tipc_config.h:310:28: error: pointer of type 'void *' used in arithmetic [-Werror=pointer-arith] ./usr/include/linux/tipc_config.h:410:24: error: pointer of type 'void *' used in arithmetic [-Werror=pointer-arith] ./usr/include/linux/virtio_ring.h:170:16: error: pointer of type 'void *' used in arithmetic [-Werror=pointer-arith] Those are theoretical probably but kernel doesn't control compiler flags in userspace. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-04net/tls: rename tls_hw_* functions tls_toe_*Jakub Kicinski
The tls_hw_* functions are quite confusingly named, since they are related to the TOE-offload, not TLS_HW offload which doesn't require TOE. Rename them. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: John Hurley <john.hurley@netronome.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-04net/tls: move TOE-related code to a separate fileJakub Kicinski
Move tls_hw_* functions to a new, separate source file to avoid confusion with normal, non-TOE offload. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: John Hurley <john.hurley@netronome.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-04net/tls: rename tls_device to tls_toe_deviceJakub Kicinski
Rename struct tls_device to struct tls_toe_device to avoid confusion with normal, non-TOE offload. No functional changes. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: John Hurley <john.hurley@netronome.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-04net/tls: move TOE-related structures to a separate headerJakub Kicinski
Move tls_device structure and register/unregister functions to a new header to avoid confusion with normal, non-TOE offload. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: John Hurley <john.hurley@netronome.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-04rxrpc: Fix rxrpc_recvmsg tracepointDavid Howells
Fix the rxrpc_recvmsg tracepoint to handle being called with a NULL call parameter. Fixes: a25e21f0bcd2 ("rxrpc, afs: Use debug_ids rather than pointers in traces") Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-04Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull KVM fixes from Paolo Bonzini: "ARM and x86 bugfixes of all kinds. The most visible one is that migrating a nested hypervisor has always been busted on Broadwell and newer processors, and that has finally been fixed" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (22 commits) KVM: x86: omit "impossible" pmu MSRs from MSR list KVM: nVMX: Fix consistency check on injected exception error code KVM: x86: omit absent pmu MSRs from MSR list selftests: kvm: Fix libkvm build error kvm: vmx: Limit guest PMCs to those supported on the host kvm: x86, powerpc: do not allow clearing largepages debugfs entry KVM: selftests: x86: clarify what is reported on KVM_GET_MSRS failure KVM: VMX: Set VMENTER_L1D_FLUSH_NOT_REQUIRED if !X86_BUG_L1TF selftests: kvm: add test for dirty logging inside nested guests KVM: x86: fix nested guest live migration with PML KVM: x86: assign two bits to track SPTE kinds KVM: x86: Expose XSAVEERPTR to the guest kvm: x86: Enumerate support for CLZERO instruction kvm: x86: Use AMD CPUID semantics for AMD vCPUs kvm: x86: Improve emulation of CPUID leaves 0BH and 1FH KVM: X86: Fix userspace set invalid CR4 kvm: x86: Fix a spurious -E2BIG in __do_cpuid_func KVM: LAPIC: Loosen filter for adaptive tuning of lapic_timer_advance_ns KVM: arm/arm64: vgic: Use the appropriate TRACE_INCLUDE_PATH arm64: KVM: Kill hyp_alternate_select() ...
2019-10-04Merge tag 'for-linus-5.4-rc2-tag' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull xen fixes and cleanups from Juergen Gross: - a fix in the Xen balloon driver avoiding hitting a BUG_ON() in some cases, plus a follow-on cleanup series for that driver - a patch for introducing non-blocking EFI callbacks in Xen's EFI driver, plu a cleanup patch for Xen EFI handling merging the x86 and ARM arch specific initialization into the Xen EFI driver - a fix of the Xen xenbus driver avoiding a self-deadlock when cleaning up after a user process has died - a fix for Xen on ARM after removal of ZONE_DMA - a cleanup patch for avoiding build warnings for Xen on ARM * tag 'for-linus-5.4-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen/xenbus: fix self-deadlock after killing user process xen/efi: have a common runtime setup function arm: xen: mm: use __GPF_DMA32 for arm64 xen/balloon: Clear PG_offline in balloon_retrieve() xen/balloon: Mark pages PG_offline in balloon_append() xen/balloon: Drop __balloon_append() xen/balloon: Set pages PageOffline() in balloon_add_region() ARM: xen: unexport HYPERVISOR_platform_op function xen/efi: Set nonblocking callbacks
2019-10-04net: devlink: allow to change namespaces during reloadJiri Pirko
All devlink instances are created in init_net and stay there for a lifetime. Allow user to be able to move devlink instances into namespaces during devlink reload operation. That ensures proper re-instantiation of driver objects, including netdevices. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-04net: devlink: export devlink net getterJiri Pirko
Allow drivers to get net struct for devlink instance. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-04net: fib_notifier: propagate extack down to the notifier block callbackJiri Pirko
Since errors are propagated all the way up to the caller, propagate possible extack of the caller all the way down to the notifier block callback. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-04net: fib_notifier: propagate possible error during fib notifier registrationJiri Pirko
Unlike events for registered notifier, during the registration, the errors that happened for the block being registered are not propagated up to the caller. Make sure the error is propagated for FIB rules and entries. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-04net: fib_notifier: make FIB notifier per-netnsJiri Pirko
Currently all users of FIB notifier only cares about events in init_net. Later in this patchset, users get interested in other namespaces too. However, for every registered block user is interested only about one namespace. Make the FIB notifier registration per-netns and avoid unnecessary calls of notifier block for other namespaces. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-04Merge tag 'copy-struct-from-user-v5.4-rc2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux Pull copy_struct_from_user() helper from Christian Brauner: "This contains the copy_struct_from_user() helper which got split out from the openat2() patchset. It is a generic interface designed to copy a struct from userspace. The helper will be especially useful for structs versioned by size of which we have quite a few. This allows for backwards compatibility, i.e. an extended struct can be passed to an older kernel, or a legacy struct can be passed to a newer kernel. For the first case (extended struct, older kernel) the new fields in an extended struct can be set to zero and the struct safely passed to an older kernel. The most obvious benefit is that this helper lets us get rid of duplicate code present in at least sched_setattr(), perf_event_open(), and clone3(). More importantly it will also help to ensure that users implementing versioning-by-size end up with the same core semantics. This point is especially crucial since we have at least one case where versioning-by-size is used but with slighly different semantics: sched_setattr(), perf_event_open(), and clone3() all do do similar checks to copy_struct_from_user() while rt_sigprocmask(2) always rejects differently-sized struct arguments. With this pull request we also switch over sched_setattr(), perf_event_open(), and clone3() to use the new helper" * tag 'copy-struct-from-user-v5.4-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux: usercopy: Add parentheses around assignment in test_copy_struct_from_user perf_event_open: switch to copy_struct_from_user() sched_setattr: switch to copy_struct_from_user() clone3: switch to copy_struct_from_user() lib: introduce copy_struct_from_user() helper
2019-10-04Merge tag 'for-linus-20191003' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux Pull clone3/pidfd fixes from Christian Brauner: "This contains a couple of fixes: - Fix pidfd selftest compilation (Shuah Kahn) Due to a false linking instruction in the Makefile compilation for the pidfd selftests would fail on some systems. - Fix compilation for glibc on RISC-V systems (Seth Forshee) In some scenarios linux/uapi/linux/sched.h is included where __ASSEMBLY__ is defined causing a build failure because struct clone_args was not guarded by an #ifndef __ASSEMBLY__. - Add missing clone3() and struct clone_args kernel-doc (Christian Brauner) clone3() and struct clone_args were missing kernel-docs. (The goal is to use kernel-doc for any function or type where it's worth it.) For struct clone_args this also contains a comment about the fact that it's versioned by size" * tag 'for-linus-20191003' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux: sched: add kernel-doc for struct clone_args fork: add kernel-doc for clone3 selftests: pidfd: Fix undefined reference to pthread_create() sched: Add __ASSEMBLY__ guards around struct clone_args
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