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2017-07-03Merge https://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
Some overlapping changes in the mlx5 driver. A merge conflict resolution posted by Stephen Rothwell was used as a guide. Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-03bpf: simplify narrower ctx accessDaniel Borkmann
This work tries to make the semantics and code around the narrower ctx access a bit easier to follow. Right now everything is done inside the .is_valid_access(). Offset matching is done differently for read/write types, meaning writes don't support narrower access and thus matching only on offsetof(struct foo, bar) is enough whereas for read case that supports narrower access we must check for offsetof(struct foo, bar) + offsetof(struct foo, bar) + sizeof(<bar>) - 1 for each of the cases. For read cases of individual members that don't support narrower access (like packet pointers or skb->cb[] case which has its own narrow access logic), we check as usual only offsetof(struct foo, bar) like in write case. Then, for the case where narrower access is allowed, we also need to set the aux info for the access. Meaning, ctx_field_size and converted_op_size have to be set. First is the original field size e.g. sizeof(<bar>) as in above example from the user facing ctx, and latter one is the target size after actual rewrite happened, thus for the kernel facing ctx. Also here we need the range match and we need to keep track changing convert_ctx_access() and converted_op_size from is_valid_access() as both are not at the same location. We can simplify the code a bit: check_ctx_access() becomes simpler in that we only store ctx_field_size as a meta data and later in convert_ctx_accesses() we fetch the target_size right from the location where we do convert. Should the verifier be misconfigured we do reject for BPF_WRITE cases or target_size that are not provided. For the subsystems, we always work on ranges in is_valid_access() and add small helpers for ranges and narrow access, convert_ctx_accesses() sets target_size for the relevant instruction. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: John Fastabend <john.fastabend@gmail.com> Cc: Yonghong Song <yhs@fb.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-03bpf, net: add skb_mac_header_len helperDaniel Borkmann
Add a small skb_mac_header_len() helper similarly as the skb_network_header_len() we have and replace open coded places in BPF's bpf_skb_change_proto() helper. Will also be used in upcoming work. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: John Fastabend <john.fastabend@gmail.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-03net: phy: Add phy loopback support in net phy frameworkLin Yun Sheng
This patch add set_loopback in phy_driver, which is used by MAC driver to enable or disable phy loopback. it also add a generic genphy_loopback function, which use BMCR loopback bit to enable or disable loopback. Signed-off-by: Lin Yun Sheng <linyunsheng@huawei.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>
2017-07-03net: cdc_ncm: Reduce memory use when kernel memory lowJim Baxter
The CDC-NCM driver can require large amounts of memory to create skb's and this can be a problem when the memory becomes fragmented. This especially affects embedded systems that have constrained resources but wish to maximise the throughput of CDC-NCM with 16KiB NTB's. The issue is after running for a while the kernel memory can become fragmented and it needs compacting. If the NTB allocation is needed before the memory has been compacted the atomic allocation can fail which can cause increased latency, large re-transmissions or disconnections depending upon the data being transmitted at the time. This situation occurs for less than a second until the kernel has compacted the memory but the failed devices can take a lot longer to recover from the failed TX packets. To ease this temporary situation I modified the CDC-NCM TX path to temporarily switch into a reduced memory mode which allocates an NTB that will fit into a USB_CDC_NCM_NTB_MIN_OUT_SIZE (default 2048 Bytes) sized memory block and only transmit NTB's with a single network frame until the memory situation is resolved. Each time this issue occurs we wait for an increasing number of reduced size allocations before requesting a full size one to not put additional pressure on a low memory system. Once the memory is compacted the CDC-NCM data can resume transmitting at the normal tx_max rate once again. Signed-off-by: Jim Baxter <jim_baxter@mentor.com> Reviewed-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-03qed: iWARP CM add error handlingKalderon, Michal
This patch introduces error handling for errors that occurred during connection establishment. Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-03qed: iWARP implement disconnect flowsKalderon, Michal
This patch takes care of active/passive disconnect flows. Disconnect flows can be initiated remotely, in which case a async event will arrive from peer and indicated to qedr driver. These are referred to as exceptions. When a QP is destroyed, it needs to check that it's associated ep has been closed. Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-03qed: iWARP CM add active side connectKalderon, Michal
This patch implements the active side connect. Offload a connection, process MPA reply and send RTR. In some of the common passive/active functions, the active side will work in blocking mode. Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-03qed: iWARP CM add passive side connectKalderon, Michal
This patch implements the passive side connect. It addresses pre-allocating resources, creating a connection element upon valid SYN packet received. Calling upper layer and implementation of the accept/reject calls. Error handling is not part of this patch. Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-03qed: iWARP CM add listener functions and initial SYN processingKalderon, Michal
This patch adds the ability to add and remove listeners and identify whether the SYN packet received is intended for iWARP or not. If a listener is not found the SYN packet is posted back to the chip. Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-03qed: Add iWARP support in ll2 connectionsKalderon, Michal
Add a new connection type for iWARP ll2 connections for setting correct ll2 filters and connection type to FW. Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-03qed: Rename some ll2 related definesKalderon, Michal
Make some names more generic as they will be used by iWARP too. Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-03qed: Implement iWARP initialization, teardown and qp operationsKalderon, Michal
This patch adds iWARP support for flows that have common code between RoCE and iWARP, such as initialization, teardown and qp setup verbs: create, destroy, modify, query. It introduces the iWARP specific files qed_iwarp.[ch] and iwarp_common.h Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-03qed: Introduce iWARP personalityKalderon, Michal
iWARP personality introduced the need for differentiating in several places in the code whether we are RoCE, iWARP or either. This leads to introducing new macros for querying the personality. Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-03platform: Accept const propertiesJan Kiszka
Aligns us with device_add_properties, the function we call. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
2017-07-02Merge branch 'pci/pm' into nextBjorn Helgaas
* pci/pm: PCI/PM: Avoid using device_may_wakeup() for runtime PM x86/PCI: Avoid AMD SB7xx EHCI USB wakeup defect PCI/PM: Restore the status of PCI devices across hibernation drm/radeon: make MacBook Pro d3_delay quirk more generic drm/amdgpu: remove unnecessary save/restore of pdev->d3_delay PCI/PM: Add needs_resume flag to avoid suspend complete optimization PCI: imx6: Fix config read timeout handling switchtec: Fix minor bug with partition ID register switchtec: Use new cdev_device_add() helper function PCI: endpoint: Make PCI_ENDPOINT depend on HAS_DMA
2017-07-02Merge branch 'pci/msi' into nextBjorn Helgaas
* pci/msi: PCI/MSI: Ignore affinity if pre/post vector count is more than min_vecs
2017-07-02moduleparam: fix doc: hwparam_irq configures an IRQSylvain 'ythier' Hitier
Signed-off-by: Sylvain 'ythier' Hitier <sylvain.hitier@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-07-02PCI: Add pci_assign_irq() function and have pci_fixup_irqs() use itMatthew Minter
Here we delete the static pdev_fixup_irq() function which is currently what pci_fixup_irqs() uses to actually assign the IRQs and replace it with the pci_assign_irq() function which changes the interface and uses the new function pointers stored in the host bridge structure. Eventually this will allow pci_fixup_irqs() to be removed entirely and the new deferred assignment code path will call pci_assign_irq() directly. However to ensure current users continue to work, a new implementation of pci_fixup_irqs() is introduced which simply wraps the functionality of pci_assign_irq(). Signed-off-by: Matthew Minter <matt@masarand.com> [lorenzo.pieralisi@arm.com: reworked comments/log] Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2017-07-02PCI: Add IRQ mapping function pointers to pci_host_bridge structMatthew Minter
In order to defer IRQ assignment arches must be able to register functions to map and swizzle interrupts. These registered functions are stored in the pci_host_bridge struct. Signed-off-by: Matthew Minter <matt@masarand.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2017-07-02PCI: Remove pci_scan_root_bus_msi()Lorenzo Pieralisi
The pci_scan_root_bus_bridge() function allows passing a parameterized struct pci_host_bridge and scanning the resulting PCI bus; since the struct msi_controller is part of the struct pci_host_bridge and the struct pci_host_bridge can now be passed to pci_scan_root_bus_bridge() explicitly, there is no need for a scan interface with a MSI controller parameter. With all PCI host controller drivers and platform code relying on pci_scan_root_bus_msi() converted over to pci_scan_root_bus_bridge() the pci_scan_root_bus_msi() becomes obsolete and can be removed. Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2017-07-02locking/refcount: Remove the half-implemented refcount_sub() APIKees Cook
CONFIG_REFCOUNT_FULL=y (correctly) does not provide a refcount_sub(), which should not be part of proper refcount design patterns. Remove the erroneous extern and the later !CONFIG_REFCOUNT_FULL accidental implementation. Signed-off-by: Kees Cook <keescook@chromium.org> Cc: Elena Reshetova <elena.reshetova@intel.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Fixes: 29dee3c03abc ("locking/refcounts: Out-of-line everything") Link: http://lkml.kernel.org/r/20170701180129.GA17405@beast Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-07-01bpf: BPF support for sock_opsLawrence Brakmo
Created a new BPF program type, BPF_PROG_TYPE_SOCK_OPS, and a corresponding struct that allows BPF programs of this type to access some of the socket's fields (such as IP addresses, ports, etc.). It uses the existing bpf cgroups infrastructure so the programs can be attached per cgroup with full inheritance support. The program will be called at appropriate times to set relevant connections parameters such as buffer sizes, SYN and SYN-ACK RTOs, etc., based on connection information such as IP addresses, port numbers, etc. Alghough there are already 3 mechanisms to set parameters (sysctls, route metrics and setsockopts), this new mechanism provides some distinct advantages. Unlike sysctls, it can set parameters per connection. In contrast to route metrics, it can also use port numbers and information provided by a user level program. In addition, it could set parameters probabilistically for evaluation purposes (i.e. do something different on 10% of the flows and compare results with the other 90% of the flows). Also, in cases where IPv6 addresses contain geographic information, the rules to make changes based on the distance (or RTT) between the hosts are much easier than route metric rules and can be global. Finally, unlike setsockopt, it oes not require application changes and it can be updated easily at any time. Although the bpf cgroup framework already contains a sock related program type (BPF_PROG_TYPE_CGROUP_SOCK), I created the new type (BPF_PROG_TYPE_SOCK_OPS) beccause the existing type expects to be called only once during the connections's lifetime. In contrast, the new program type will be called multiple times from different places in the network stack code. For example, before sending SYN and SYN-ACKs to set an appropriate timeout, when the connection is established to set congestion control, etc. As a result it has "op" field to specify the type of operation requested. The purpose of this new program type is to simplify setting connection parameters, such as buffer sizes, TCP's SYN RTO, etc. For example, it is easy to use facebook's internal IPv6 addresses to determine if both hosts of a connection are in the same datacenter. Therefore, it is easy to write a BPF program to choose a small SYN RTO value when both hosts are in the same datacenter. This patch only contains the framework to support the new BPF program type, following patches add the functionality to set various connection parameters. This patch defines a new BPF program type: BPF_PROG_TYPE_SOCKET_OPS and a new bpf syscall command to load a new program of this type: BPF_PROG_LOAD_SOCKET_OPS. Two new corresponding structs (one for the kernel one for the user/BPF program): /* kernel version */ struct bpf_sock_ops_kern { struct sock *sk; __u32 op; union { __u32 reply; __u32 replylong[4]; }; }; /* user version * Some fields are in network byte order reflecting the sock struct * Use the bpf_ntohl helper macro in samples/bpf/bpf_endian.h to * convert them to host byte order. */ struct bpf_sock_ops { __u32 op; union { __u32 reply; __u32 replylong[4]; }; __u32 family; __u32 remote_ip4; /* In network byte order */ __u32 local_ip4; /* In network byte order */ __u32 remote_ip6[4]; /* In network byte order */ __u32 local_ip6[4]; /* In network byte order */ __u32 remote_port; /* In network byte order */ __u32 local_port; /* In host byte horder */ }; Currently there are two types of ops. The first type expects the BPF program to return a value which is then used by the caller (or a negative value to indicate the operation is not supported). The second type expects state changes to be done by the BPF program, for example through a setsockopt BPF helper function, and they ignore the return value. The reply fields of the bpf_sockt_ops struct are there in case a bpf program needs to return a value larger than an integer. Signed-off-by: Lawrence Brakmo <brakmo@fb.com> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-01Merge tag 'nfc-next-4.13-1' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/sameo/nfc-next Samuel Ortiz says: ==================== NFC 4.13 pull request This is the NFC pull requesy for 4.13. We have: - A conversion to unified device and GPIO APIs for the fdp, pn544, and st{21,-nci} drivers. - A fix for NFC device IDs allocation. - A fix for the nfcmrvl driver firmware download mechanism. - A trf7970a DT and GPIO cleanup and clock setting fix. - A few fixes for potential overflows in the digital and LLCP code. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-01Merge tag 'mlx5-fixes-2017-06-28' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux Saeed Mahameed says: ==================== Mellanox, mlx5 fixes 2017-06-28 This series contains some fixes for the mlx5 core and netdev driver. Please pull and let me know if there's any problem. For -stable: ("net/mlx5e: Fix TX carrier errors report in get stats ndo") Kernels >= v4.7 ("net/mlx5: Cancel delayed recovery work when unloading the driver") Kernels >= v4.10 * When applied to net-next this will introduce a contextual conflict, it should be easy to resolve, (a spin_lock was changed to spin_lock_irqsave in net-next), if you need any help with this please let me know. ("net/mlx5: Fix driver load error flow when firmware is stuck") Kernels >= v4.4* * This patch fixes: 6c780a0267b8 ("net/mlx5: Wait for FW readiness before initializing command interface") which was submitted two weeks ago and queued up for v4.4. Sorry about the mess, but other than the above, this series doesn't introduce any conflict with the current mlx5 IPSec offload series. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-01sctp: remove the typedef sctp_init_chunk_tXin Long
This patch is to remove the typedef sctp_init_chunk_t, and replace with struct sctp_init_chunk in the places where it's using this typedef. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-01sctp: remove the typedef sctp_inithdr_tXin Long
This patch is to remove the typedef sctp_inithdr_t, and replace with struct sctp_inithdr in the places where it's using this typedef. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-01sctp: remove the typedef sctp_data_chunk_tXin Long
This patch is to remove the typedef sctp_data_chunk_t, and replace with struct sctp_data_chunk in the places where it's using this typedef. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-01sctp: remove the typedef sctp_datahdr_tXin Long
This patch is to remove the typedef sctp_datahdr_t, and replace with struct sctp_datahdr in the places where it's using this typedef. It is also to use izeof(variable) instead of sizeof(type). Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-01sctp: remove the typedef sctp_param_action_tXin Long
Remove this typedef, there is even no places using it. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-01sctp: remove the typedef sctp_param_tXin Long
This patch is to remove the typedef sctp_param_t, and replace with struct sctp_paramhdr in the places where it's using this typedef. It is also to remove the useless declaration sctp_addip_addr_config and fix the lack of params for some other functions' declaration. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-01sctp: remove the typedef sctp_paramhdr_tXin Long
This patch is to remove the typedef sctp_paramhdr_t, and replace with struct sctp_paramhdr in the places where it's using this typedef. It is also to fix some indents and use sizeof(variable) instead of sizeof(type). Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-01sctp: remove the typedef sctp_cid_action_tXin Long
Remove this typedef, there is even no places using it. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-01sctp: remove the typedef sctp_cid_tXin Long
This patch is to remove the typedef sctp_cid_t, and replace with struct sctp_cid in the places where it's using this typedef. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-01sctp: remove the typedef sctp_chunkhdr_tXin Long
This patch is to remove the typedef sctp_chunkhdr_t, and replace with struct sctp_chunkhdr in the places where it's using this typedef. It is also to fix some indents and use sizeof(variable) instead of sizeof(type)., especially in sctp_new. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-01sctp: remove the typedef sctp_sctphdr_tXin Long
This patch is to remove the typedef sctp_sctphdr_t, and replace with struct sctphdr in the places where it's using this typedef. It is also to fix some indents and use sizeof(variable) instead of sizeof(type). Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-01libnvdimm, acpi, nfit: Add bus level dsm mask for pass thru.Jerry Hoemann
Add a bus level dsm_mask to nvdimm_bus_descriptor to allow the passthru calling mechanism to specify a different mask from the cmd_mask. Populate bus_dsm_mask and use it to filter dsm calls that user can make through the pass thru interface. Signed-off-by: Jerry Hoemann <jerry.hoemann@hpe.com> [djbw: use command number constants instead of a magic mask value] Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2017-07-01net: convert netpoll_info.refcnt from atomic_t to refcount_tReshetova, Elena
refcount_t type and corresponding API should be used instead of atomic_t when the variable is used as a reference counter. This allows to avoid accidental refcounter overflows that might lead to use-after-free situations. Signed-off-by: Elena Reshetova <elena.reshetova@intel.com> Signed-off-by: Hans Liljestrand <ishkamiel@gmail.com> Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: David Windsor <dwindsor@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-01net: convert in_device.refcnt from atomic_t to refcount_tReshetova, Elena
refcount_t type and corresponding API should be used instead of atomic_t when the variable is used as a reference counter. This allows to avoid accidental refcounter overflows that might lead to use-after-free situations. Signed-off-by: Elena Reshetova <elena.reshetova@intel.com> Signed-off-by: Hans Liljestrand <ishkamiel@gmail.com> Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: David Windsor <dwindsor@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-01net: convert ip_mc_list.refcnt from atomic_t to refcount_tReshetova, Elena
refcount_t type and corresponding API should be used instead of atomic_t when the variable is used as a reference counter. This allows to avoid accidental refcounter overflows that might lead to use-after-free situations. Signed-off-by: Elena Reshetova <elena.reshetova@intel.com> Signed-off-by: Hans Liljestrand <ishkamiel@gmail.com> Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: David Windsor <dwindsor@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-01net: convert sock.sk_wmem_alloc from atomic_t to refcount_tReshetova, Elena
refcount_t type and corresponding API should be used instead of atomic_t when the variable is used as a reference counter. This allows to avoid accidental refcounter overflows that might lead to use-after-free situations. Signed-off-by: Elena Reshetova <elena.reshetova@intel.com> Signed-off-by: Hans Liljestrand <ishkamiel@gmail.com> Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: David Windsor <dwindsor@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-01net: convert sk_buff_fclones.fclone_ref from atomic_t to refcount_tReshetova, Elena
refcount_t type and corresponding API should be used instead of atomic_t when the variable is used as a reference counter. This allows to avoid accidental refcounter overflows that might lead to use-after-free situations. Signed-off-by: Elena Reshetova <elena.reshetova@intel.com> Signed-off-by: Hans Liljestrand <ishkamiel@gmail.com> Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: David Windsor <dwindsor@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-01net: convert sk_buff.users from atomic_t to refcount_tReshetova, Elena
refcount_t type and corresponding API should be used instead of atomic_t when the variable is used as a reference counter. This allows to avoid accidental refcounter overflows that might lead to use-after-free situations. Signed-off-by: Elena Reshetova <elena.reshetova@intel.com> Signed-off-by: Hans Liljestrand <ishkamiel@gmail.com> Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: David Windsor <dwindsor@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-01net: convert nf_bridge_info.use from atomic_t to refcount_tReshetova, Elena
refcount_t type and corresponding API should be used instead of atomic_t when the variable is used as a reference counter. This allows to avoid accidental refcounter overflows that might lead to use-after-free situations. Signed-off-by: Elena Reshetova <elena.reshetova@intel.com> Signed-off-by: Hans Liljestrand <ishkamiel@gmail.com> Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: David Windsor <dwindsor@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-30hashtable: remove repeated phrase from a commentJakub Kicinski
"in a rcu enabled hashtable" is repeated twice in a comment. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-06-30Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
A set of overlapping changes in macvlan and the rocker driver, nothing serious. Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-30Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-nextDavid S. Miller
Pablo Neira Ayuso says: ==================== Netfilter updates for net-next The following patchset contains Netfilter updates for your net-next tree. This batch contains connection tracking updates for the cleanup iteration path, patches from Florian Westphal: X) Skip unconfirmed conntracks in nf_ct_iterate_cleanup_net(), just set dying bit to let the CPU release them. X) Add nf_ct_iterate_destroy() to be used on module removal, to kill conntrack from all namespace. X) Restart iteration on hashtable resizing, since both may occur at the same time. X) Use the new nf_ct_iterate_destroy() to remove conntrack with NAT mapping on module removal. X) Use nf_ct_iterate_destroy() to remove conntrack entries helper module removal, from Liping Zhang. X) Use nf_ct_iterate_cleanup_net() to remove the timeout extension if user requests this, also from Liping. X) Add net_ns_barrier() and use it from FTP helper, so make sure no concurrent namespace removal happens at the same time while the helper module is being removed. X) Use NFPROTO_MAX in layer 3 conntrack protocol array, to reduce module size. Same thing in nf_tables. Updates for the nf_tables infrastructure: X) Prepare usage of the extended ACK reporting infrastructure for nf_tables. X) Remove unnecessary forward declaration in nf_tables hash set. X) Skip set size estimation if number of element is not specified. X) Changes to accomodate a (faster) unresizable hash set implementation, for anonymous sets and dynamic size fixed sets with no timeouts. X) Faster lookup function for unresizable hash table for 2 and 4 bytes key. And, finally, a bunch of asorted small updates and cleanups: X) Do not hold reference to netdev from ipt_CLUSTER, instead subscribe to device events and look up for index from the packet path, this is fixing an issue that is present since the very beginning, patch from Xin Long. X) Use nf_register_net_hook() in ipt_CLUSTER, from Florian Westphal. X) Use ebt_invalid_target() whenever possible in the ebtables tree, from Gao Feng. X) Calm down compilation warning in nf_dup infrastructure, patch from stephen hemminger. X) Statify functions in nftables rt expression, also from stephen. X) Update Makefile to use canonical method to specify nf_tables-objs. From Jike Song. X) Use nf_conntrack_helpers_register() in amanda and H323. X) Space cleanup for ctnetlink, from linzhang. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-30Merge tag 'kvmarm-for-4.13' of ↵Paolo Bonzini
git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD KVM/ARM updates for 4.13 - vcpu request overhaul - allow timer and PMU to have their interrupt number selected from userspace - workaround for Cavium erratum 30115 - handling of memory poisonning - the usual crop of fixes and cleanups Conflicts: arch/s390/include/asm/kvm_host.h
2017-06-30nanosleep: Use get_timespec64() and put_timespec64()Deepa Dinamani
Usage of these apis and their compat versions makes the syscalls: clock_nanosleep and nanosleep and their compat implementations simpler. This is a preparatory patch to isolate data conversions to struct timespec64 at userspace boundaries. This helps contain the changes needed to transition to new y2038 safe types. Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-06-30ieee80211: update public action codesPeter Oh
Update Public Action field values as updated in IEEE Std 802.11-2016, so that modules/drivers can refer it. Signed-off-by: Peter Oh <peter.oh@bowerswilkins.com> Reviewed-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>