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2019-08-13Merge remote-tracking branch 'mlx5-next/mlx5-next' into wip/dl-for-nextDoug Ledford10-245/+263
Merging tip of mlx5-next in order to get changes related to adding XRQ support to the DEVX interface needed prior to the following two patches. Signed-off-by: Doug Ledford <dledford@redhat.com>
2019-08-13net/mlx5: Add XRQ legacy commands opcodesYishai Hadas1-0/+4
Add XRQ legacy commands opcodes, will be used via the DEVX interface. Signed-off-by: Yishai Hadas <yishaih@mellanox.com> Reviewed-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
2019-08-13net/mlx5: Use debug message instead of warnYishai Hadas1-1/+1
As QP may be created by DEVX, it may be valid to not find the rsn in mlx5 core tree, change the level to be debug. Signed-off-by: Yishai Hadas <yishaih@mellanox.com> Reviewed-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
2019-08-07mlx5: Use refcount_t for refcountChuhong Yuan1-3/+3
Reference counters are preferred to use refcount_t instead of atomic_t. This is because the implementation of refcount_t can prevent overflows and detect possible use-after-free. So convert atomic_t ref counters to refcount_t. Signed-off-by: Chuhong Yuan <hslester96@gmail.com> Acked-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-08-06net/mlx5: remove self-assignment on esw->devColin Ian King1-1/+1
There is a self assignment of esw->dev to itself, clean this up by removing it. Also make dev a const pointer. Addresses-Coverity: ("Self assignment") Fixes: 6cedde451399 ("net/mlx5: E-Switch, Verify support QoS element type") Signed-off-by: Colin Ian King <colin.king@canonical.com> Reviewed-by: Parav Pandit <parav@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-08-02mlx5: Fix formats with line continuation whitespaceJoe Perches1-4/+2
The line continuations unintentionally add whitespace so instead use coalesced formats to remove the whitespace. Signed-off-by: Joe Perches <joe@perches.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Link: https://lore.kernel.org/r/f14db3287b23ed8af9bdbf8001e2e2fe7ae9e43a.camel@perches.com Signed-off-by: Doug Ledford <dledford@redhat.com>
2019-08-01net/mlx5: E-switch, Tide up eswitch config sequenceParav Pandit3-25/+41
Currently for PF and ECPF vports, representors are created before their eswitch hardware ports are initialized in below flow. mlx5_eswitch_enable() esw_offloads_init() esw_offloads_load_all_reps() [..] esw_enable_vport() However for VFs, vports are initialized before creating their respective netdev represnetors in event handling context. Similarly while disabling eswitch, first hardware vports are disabled, followed by destroying their representors. Here while underlying vports gets destroyed but its respective user facing netdevice can still exist on which user can continue to perform more offload operations. Instead, its more accurate to do enable_eswitch switchdev mode: 1. perform FDB tables initialization 2. initialize hw vport 3. create and publish representor for this vport disable_eswitch switchdev mode: 1. destroy user facing representor for the vport 2. disable hw vport 3. perform FDB tables cleanup Signed-off-by: Parav Pandit <parav@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-08-01net/mlx5: E-Switch, Remove redundant mc_promisc NULL checkParav Pandit2-3/+5
mc_promisc pointer points to an instance of struct esw_mc_addr allocated as part of the esw structure. Hence it cannot be NULL. Removed such redundant check and assign where it is actually used. While at it, add comment around legacy mode fields and move mc_promisc close to other legacy mode structures to improve code redability. Signed-off-by: Parav Pandit <parav@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-08-01net/mlx5: E-Switch, remove redundant error handlingSaeed Mahameed1-2/+0
We don't need to handle error flow of esw_create_legacy_table() in the same branch, it is already being handled directly after the if statement, for both legacy and switchdev modes in one place. Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Reviewed-by: Roi Dayan <roid@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-08-01net/mlx5: E-switch, Introduce helper function to enable/disable vportsParav Pandit2-42/+73
vports needs to be enabled in switchdev and legacy mode. In switchdev mode, vports should be enabled after initializing the FDB tables and before creating their represntors so that representor works on an initialized vport object. Prepare a helper function which can be called when enabling either of the eswitch modes. Similarly, have disable vports helper function. Signed-off-by: Parav Pandit <parav@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-08-01net/mlx5: E-switch, Initialize TSAR Qos hardware block before its user vportsParav Pandit1-12/+9
First enable TSAR Qos hardware block in device before enabling its user vports. This refactor is needed so that vports can be enabled before their representor netdevice can be created. While at it, esw_create_tsar() returns error code which was used only to print error. However esw_create_tsar() already prints warning if it hits an error. Hence, remove the redundant warning. Signed-off-by: Parav Pandit <parav@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-08-01net/mlx5: E-switch, Combine metadata enable/disable functionalityParav Pandit1-36/+12
Except bit toggling code, rest of the code is same to enable/disable metadata passing functionality. Hence, combine them to single function and control using enable flag. Also instead of checking metadata supported at multiple places, fold into the helper function. Signed-off-by: Parav Pandit <parav@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-08-01net/mlx5: E-Switch, Verify support QoS element typeEli Cohen1-0/+31
Check if firmware supports the requested element type before attempting to create the element type. In addition, explicitly specify the request element type and tsar type. Signed-off-by: Eli Cohen <eli@mellanox.com> Reviewed-by: Paul Blakey <paulb@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-08-01net/mlx5: Make load_one() and unload_one() symmetricParav Pandit1-2/+3
Currently mlx5_load_one() perform device registration using mlx5_register_device(). But mlx5_unload_one() doesn't unregister. Make them symmetric by doing device unregistration in mlx5_unload_one(). Signed-off-by: Parav Pandit <parav@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-08-01net/mlx5: Add flow counter bulk allocation hardware bits and commandGavi Teitz2-1/+12
Add a handle to invoke the new FW capability of allocating a bulk of flow counters. Signed-off-by: Gavi Teitz <gavi@mellanox.com> Reviewed-by: Vlad Buslov <vladbu@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-08-01net/mlx5: Refactor and optimize flow counter bulk queryGavi Teitz3-119/+80
Towards introducing the ability to allocate bulks of flow counters, refactor the flow counter bulk query process, removing functions and structs whose names indicated being used for flow counter bulk allocation FW commands, despite them actually only being used to support bulk querying, and migrate their functionality to correctly named functions in their natural location, fs_counters.c. Additionally, optimize the bulk query process by: * Extracting the memory used for the query to mlx5_fc_stats so that it is only allocated once, and not for each bulk query. * Querying all the counters in one function call. Signed-off-by: Gavi Teitz <gavi@mellanox.com> Reviewed-by: Vlad Buslov <vladbu@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-07-29net/mlx5: fix -Wtype-limits compilation warningsQian Cai1-11/+1
The commit b9a7ba556207 ("net/mlx5: Use event mask based on device capabilities") introduced a few compilation warnings due to it bumps MLX5_EVENT_TYPE_MAX from 0x27 to 0x100 which is always greater than an "struct {mlx5_eqe|mlx5_nb}.type" that is an "u8". drivers/net/ethernet/mellanox/mlx5/core/eq.c: In function 'mlx5_eq_notifier_register': drivers/net/ethernet/mellanox/mlx5/core/eq.c:948:21: warning: comparison is always false due to limited range of data type [-Wtype-limits] if (nb->event_type >= MLX5_EVENT_TYPE_MAX) ^~ drivers/net/ethernet/mellanox/mlx5/core/eq.c: In function 'mlx5_eq_notifier_unregister': drivers/net/ethernet/mellanox/mlx5/core/eq.c:959:21: warning: comparison is always false due to limited range of data type [-Wtype-limits] if (nb->event_type >= MLX5_EVENT_TYPE_MAX) Fix them by removing unnecessary checkings. Fixes: b9a7ba556207 ("net/mlx5: Use event mask based on device capabilities") Signed-off-by: Qian Cai <cai@lca.pw> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-07-25qed*: Change dpi_addr to be denoted with __iomemMichal Kalderon1-3/+2
Several casts were required around dpi_addr parameter in qed_rdma_if.h This is an address on the doorbell bar and should therefore be marked with __iomem. Link: https://lore.kernel.org/r/20190709141735.19193-5-michal.kalderon@marvell.com Reported-by: Jason Gunthorpe <jgg@mellanox.com> Signed-off-by: Ariel Elior <ariel.elior@marvell.com> Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-07-19Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds42-120/+357
Pull networking fixes from David Miller: 1) Fix AF_XDP cq entry leak, from Ilya Maximets. 2) Fix handling of PHY power-down on RTL8411B, from Heiner Kallweit. 3) Add some new PCI IDs to iwlwifi, from Ihab Zhaika. 4) Fix handling of neigh timers wrt. entries added by userspace, from Lorenzo Bianconi. 5) Various cases of missing of_node_put(), from Nishka Dasgupta. 6) The new NET_ACT_CT needs to depend upon NF_NAT, from Yue Haibing. 7) Various RDS layer fixes, from Gerd Rausch. 8) Fix some more fallout from TCQ_F_CAN_BYPASS generalization, from Cong Wang. 9) Fix FIB source validation checks over loopback, also from Cong Wang. 10) Use promisc for unsupported number of filters, from Justin Chen. 11) Missing sibling route unlink on failure in ipv6, from Ido Schimmel. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (90 commits) tcp: fix tcp_set_congestion_control() use from bpf hook ag71xx: fix return value check in ag71xx_probe() ag71xx: fix error return code in ag71xx_probe() usb: qmi_wwan: add D-Link DWM-222 A2 device ID bnxt_en: Fix VNIC accounting when enabling aRFS on 57500 chips. net: dsa: sja1105: Fix missing unlock on error in sk_buff() gve: replace kfree with kvfree selftests/bpf: fix test_xdp_noinline on s390 selftests/bpf: fix "valid read map access into a read-only array 1" on s390 net/mlx5: Replace kfree with kvfree MAINTAINERS: update netsec driver ipv6: Unlink sibling route in case of failure liquidio: Replace vmalloc + memset with vzalloc udp: Fix typo in net/ipv4/udp.c net: bcmgenet: use promisc for unsupported filters ipv6: rt6_check should return NULL if 'from' is NULL tipc: initialize 'validated' field of received packets selftests: add a test case for rp_filter fib: relax source validation check for loopback packets mlxsw: spectrum: Do not process learned records with a dummy FID ...
2019-07-18ag71xx: fix return value check in ag71xx_probe()Wei Yongjun1-2/+2
In case of error, the function of_get_mac_address() returns ERR_PTR() and never returns NULL. The NULL test in the return value check should be replaced with IS_ERR(). Fixes: d51b6ce441d3 ("net: ethernet: add ag71xx driver") Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Reviewed-by: Oleksij Rempel <o.rempel@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-18ag71xx: fix error return code in ag71xx_probe()Wei Yongjun1-1/+3
Fix to return error code -ENOMEM from the dmam_alloc_coherent() error handling case instead of 0, as done elsewhere in this function. Fixes: d51b6ce441d3 ("net: ethernet: add ag71xx driver") Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Reviewed-by: Oleksij Rempel <o.rempel@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-18usb: qmi_wwan: add D-Link DWM-222 A2 device IDRogan Dawes1-0/+1
Signed-off-by: Rogan Dawes <rogan@dawes.za.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-18bnxt_en: Fix VNIC accounting when enabling aRFS on 57500 chips.Michael Chan1-2/+5
Unlike legacy chips, 57500 chips don't need additional VNIC resources for aRFS/ntuple. Fix the code accordingly so that we don't reserve and allocate additional VNICs on 57500 chips. Without this patch, the driver is failing to initialize when it tries to allocate extra VNICs. Fixes: ac33906c67e2 ("bnxt_en: Add support for aRFS on 57500 chips.") Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-18gve: replace kfree with kvfreeChuhong Yuan2-13/+13
Variables allocated by kvzalloc should not be freed by kfree. Because they may be allocated by vmalloc. So we replace kfree with kvfree here. Signed-off-by: Chuhong Yuan <hslester96@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-18net/mlx5: Replace kfree with kvfreeChuhong Yuan1-1/+1
Variable allocated by kvmalloc should not be freed by kfree. Because it may be allocated by vmalloc. So replace kfree with kvfree here. Fixes: 9b1f298236057 ("net/mlx5: Add support for FW fatal reporter dump") Signed-off-by: Chuhong Yuan <hslester96@gmail.com> Acked-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-18Merge tag 'wireless-drivers-for-davem-2019-07-18' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-driversDavid S. Miller6-6/+93
Kalle Valo says: ==================== wireless-drivers fixes for 5.3 First set of fixes for 5.3. iwlwifi * add new cards for 9000 and 20000 series and qu c-step devices ath10k * workaround an uninitialised variable warning rt2x00 * fix rx queue hand on USB ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-18liquidio: Replace vmalloc + memset with vzallocChuhong Yuan1-4/+2
Use vzalloc and vzalloc_node instead of using vmalloc and vmalloc_node and then zeroing the allocated memory by memset 0. This simplifies the code. Signed-off-by: Chuhong Yuan <hslester96@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-18net: bcmgenet: use promisc for unsupported filtersJustin Chen1-31/+26
Currently we silently ignore filters if we cannot meet the filter requirements. This will lead to the MAC dropping packets that are expected to pass. A better solution would be to set the NIC to promisc mode when the required filters cannot be met. Also correct the number of MDF filters supported. It should be 17, not 16. Signed-off-by: Justin Chen <justinpopo6@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-17mlxsw: spectrum: Do not process learned records with a dummy FIDIdo Schimmel3-0/+17
The switch periodically sends notifications about learned FDB entries. Among other things, the notification includes the FID (Filtering Identifier) and the port on which the MAC was learned. In case the driver does not have the FID defined on the relevant port, the following error will be periodically generated: mlxsw_spectrum2 0000:06:00.0 swp32: Failed to find a matching {Port, VID} following FDB notification This is not supposed to happen under normal conditions, but can happen if an ingress tc filter with a redirect action is installed on a bridged port. The redirect action will cause the packet's FID to be changed to the dummy FID and a learning notification will be emitted with this FID - which is not defined on the bridged port. Fix this by having the driver ignore learning notifications generated with the dummy FID and delete them from the device. Another option is to chain an ignore action after the redirect action which will cause the device to disable learning, but this means that we need to consume another action whenever a redirect action is used. In addition, the scenario described above is merely a corner case. Fixes: cedbb8b25948 ("mlxsw: spectrum_flower: Set dummy FID before forward action") Signed-off-by: Ido Schimmel <idosch@mellanox.com> Reported-by: Alex Kushnarov <alexanderk@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Tested-by: Alex Kushnarov <alexanderk@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-17mlxsw: spectrum_dcb: Configure DSCP map as the last rule is removedPetr Machata1-8/+8
Spectrum systems use DSCP rewrite map to update DSCP field in egressing packets to correspond to priority that the packet has. Whether rewriting will take place is determined at the point when the packet ingresses the switch: if the port is in Trust L3 mode, packet priority is determined from the DSCP map at the port, and DSCP rewrite will happen. If the port is in Trust L2 mode, 802.1p is used for packet prioritization, and no DSCP rewrite will happen. The driver determines the port trust mode based on whether any DSCP prioritization rules are in effect at given port. If there are any, trust level is L3, otherwise it's L2. When the last DSCP rule is removed, the port is switched to trust L2. Under that scenario, if DSCP of a packet should be rewritten, it should be rewritten to 0. However, when switching to Trust L2, the driver neglects to also update the DSCP rewrite map. The last DSCP rule thus remains in effect, and packets egressing through this port, if they have the right priority, will have their DSCP set according to this rule. Fix by first configuring the rewrite map, and only then switching to trust L2 and bailing out. Fixes: b2b1dab6884e ("mlxsw: spectrum: Support ieee_setapp, ieee_delapp") Signed-off-by: Petr Machata <petrm@mellanox.com> Reported-by: Alex Veber <alexve@mellanox.com> Tested-by: Alex Veber <alexve@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-17net: ag71xx: Add missing headerRosen Penev1-0/+1
ag71xx uses devm_ioremap_nocache. This fixes usage of an implicit function Fixes: d51b6ce441d3 ("net: ethernet: add ag71xx driver") Signed-off-by: Rosen Penev <rosenp@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-17caif-hsi: fix possible deadlock in cfhsi_exit_module()Taehee Yoo1-1/+1
cfhsi_exit_module() calls unregister_netdev() under rtnl_lock(). but unregister_netdev() internally calls rtnl_lock(). So deadlock would occur. Fixes: c41254006377 ("caif-hsi: Add rtnl support") Signed-off-by: Taehee Yoo <ap420073@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-17Merge tag 'mips_5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linuxLinus Torvalds1-0/+1
Pull MIPS updates from Paul Burton: "A light batch this time around but significant improvements for certain systems: - Removal of readq & writeq for MIPS32 kernels where they would simply BUG() anyway, allowing drivers or other code that #ifdefs on their presence to work properly. - Improvements for Ingenic JZ4740 systems, including support for the external memory controller & pinmuxing fixes for qi_lb60/NanoNote systems. - Improvements for Lantiq systems, in particular around SMP & IPIs. - DT updates for ralink/MediaTek MT7628a systems to probe & configure a bunch more devices. - Miscellaneous cleanups & build fixes" * tag 'mips_5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (30 commits) MIPS: fix some more fall through errors in arch/mips MIPS: perf events: handle switch statement falling through warnings mips/kprobes: Export kprobe_fault_handler() MAINTAINERS: Add myself as Ingenic SoCs maintainer MIPS: ralink: mt7628a.dtsi: Add watchdog controller DT node MIPS: ralink: mt7628a.dtsi: Add SPI controller DT node MIPS: ralink: mt7628a.dtsi: Add GPIO controller DT node MIPS: ralink: mt7628a.dtsi: Add pinctrl DT properties to the UART nodes MIPS: ralink: mt7628a.dtsi: Add pinmux DT node MIPS: ralink: mt7628a.dtsi: Add SPDX GPL-2.0 license identifier MIPS: lantiq: Add SMP support for lantiq interrupt controller MIPS: lantiq: Shorten register names, remove unused macros MIPS: lantiq: Fix bitfield masking MIPS: lantiq: Remove unused macros MIPS: lantiq: Fix attributes of of_device_id structure MIPS: lantiq: Change variables to the same type as the source MIPS: lantiq: Move macro directly to iomem function mips: Remove q-accessors from non-64bit platforms FDDI: defza: Include linux/io-64-nonatomic-lo-hi.h MIPS: configs: Remove useless UEVENT_HELPER_PATH ...
2019-07-17Merge branch 'akpm' (patches from Andrew)Linus Torvalds1-1/+1
Merge more updates from Andrew Morton: "VM: - z3fold fixes and enhancements by Henry Burns and Vitaly Wool - more accurate reclaimed slab caches calculations by Yafang Shao - fix MAP_UNINITIALIZED UAPI symbol to not depend on config, by Christoph Hellwig - !CONFIG_MMU fixes by Christoph Hellwig - new novmcoredd parameter to omit device dumps from vmcore, by Kairui Song - new test_meminit module for testing heap and pagealloc initialization, by Alexander Potapenko - ioremap improvements for huge mappings, by Anshuman Khandual - generalize kprobe page fault handling, by Anshuman Khandual - device-dax hotplug fixes and improvements, by Pavel Tatashin - enable synchronous DAX fault on powerpc, by Aneesh Kumar K.V - add pte_devmap() support for arm64, by Robin Murphy - unify locked_vm accounting with a helper, by Daniel Jordan - several misc fixes core/lib: - new typeof_member() macro including some users, by Alexey Dobriyan - make BIT() and GENMASK() available in asm, by Masahiro Yamada - changed LIST_POISON2 on x86_64 to 0xdead000000000122 for better code generation, by Alexey Dobriyan - rbtree code size optimizations, by Michel Lespinasse - convert struct pid count to refcount_t, by Joel Fernandes get_maintainer.pl: - add --no-moderated switch to skip moderated ML's, by Joe Perches misc: - ptrace PTRACE_GET_SYSCALL_INFO interface - coda updates - gdb scripts, various" [ Using merge message suggestion from Vlastimil Babka, with some editing - Linus ] * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (100 commits) fs/select.c: use struct_size() in kmalloc() mm: add account_locked_vm utility function arm64: mm: implement pte_devmap support mm: introduce ARCH_HAS_PTE_DEVMAP mm: clean up is_device_*_page() definitions mm/mmap: move common defines to mman-common.h mm: move MAP_SYNC to asm-generic/mman-common.h device-dax: "Hotremove" persistent memory that is used like normal RAM mm/hotplug: make remove_memory() interface usable device-dax: fix memory and resource leak if hotplug fails include/linux/lz4.h: fix spelling and copy-paste errors in documentation ipc/mqueue.c: only perform resource calculation if user valid include/asm-generic/bug.h: fix "cut here" for WARN_ON for __WARN_TAINT architectures scripts/gdb: add helpers to find and list devices scripts/gdb: add lx-genpd-summary command drivers/pps/pps.c: clear offset flags in PPS_SETPARAMS ioctl kernel/pid.c: convert struct pid count to refcount_t drivers/rapidio/devices/rio_mport_cdev.c: NUL terminate some strings select: shift restore_saved_sigmask_unless() into poll_select_copy_remaining() select: change do_poll() to return -ERESTARTNOHAND rather than -EINTR ...
2019-07-16kernel: fix typos and some coding style in commentsWeitao Hou1-1/+1
fix lenght to length Link: http://lkml.kernel.org/r/20190521050937.4370-1-houweitaoo@gmail.com Signed-off-by: Weitao Hou <houweitaoo@gmail.com> Acked-by: Kees Cook <keescook@chromium.org> Cc: Colin Ian King <colin.king@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-07-16be2net: Signal that the device cannot transmit during reconfigurationBenjamin Poirier1-1/+5
While changing the number of interrupt channels, be2net stops adapter operation (including netif_tx_disable()) but it doesn't signal that it cannot transmit. This may lead dev_watchdog() to falsely trigger during that time. Add the missing call to netif_carrier_off(), following the pattern used in many other drivers. netif_carrier_on() is already taken care of in be_open(). Signed-off-by: Benjamin Poirier <bpoirier@suse.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-16net: ethernet: mediatek: mtk_eth_soc: Add of_node_put() before gotoNishka Dasgupta1-1/+3
Each iteration of for_each_child_of_node puts the previous node, but in the case of a goto from the middle of the loop, there is no put, thus causing a memory leak. Hence add an of_node_put before the goto. Issue found with Coccinelle. Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-16net: ethernet: mscc: ocelot_board: Add of_node_put() before returnNishka Dasgupta1-1/+4
Each iteration of for_each_available_child_of_node puts the previous node, but in the case of a return from the middle of the loop, there is no put, thus causing a memory leak. Hence add an of_node_put before the return in two places. Issue found with Coccinelle. Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-16net: ethernet: ti: cpsw: Add of_node_put() before return and breakNishka Dasgupta1-8/+18
Each iteration of for_each_available_child_of_node puts the previous node, but in the case of a return or break from the middle of the loop, there is no put, thus causing a memory leak. Hence, for function cpsw_probe_dt, create an extra label err_node_put that puts the last used node and returns ret; modify the return statements in the loop to save the return value in ret and goto this new label. For function cpsw_remove_dt, add an of_node_put before the break. Issue found with Coccinelle. Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-15net/mlx5e: Allow dissector meta key in tc flowerVlad Buslov1-1/+2
Recently, fl_flow_key->indev_ifindex int field was refactored into flow_dissector_key_meta field. With this, flower classifier also sets FLOW_DISSECTOR_KEY_META flow dissector key. However, mlx5 flower dissector validation code rejects filters that use flow dissector keys that are not supported. Add FLOW_DISSECTOR_KEY_META to the list of allowed dissector keys in __parse_cls_flower() to prevent following error when offloading flower classifier to mlx5: Error: mlx5_core: Unsupported key. Fixes: 8212ed777f40 ("net: sched: cls_flower: use flow_dissector for ingress ifindex") Signed-off-by: Vlad Buslov <vladbu@mellanox.com> Reviewed-by: Roi Dayan <roid@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-07-15net/mlx5e: Rely on filter_dev instead of dissector keys for tunnelsVlad Buslov1-5/+1
Currently, tunnel attributes are parsed and inner header matching is used only when flow dissector specifies match on some of the supported encapsulation fields. When user tries to offload tc filter that doesn't match any encapsulation fields on tunnel device, mlx5 tc layer incorrectly sets to match packet header keys on encap header (outer header) and firmware rejects the rule with syndrome 0x7e1579 when creating new flow group. Change __parse_cls_flower() to determine whether tunnel is used based on fitler_dev tunnel info, instead of determining it indirectly by checking flow dissector enc keys. Fixes: bbd00f7e2349 ("net/mlx5e: Add TC tunnel release action for SRIOV offloads") Signed-off-by: Vlad Buslov <vladbu@mellanox.com> Reviewed-by: Roi Dayan <roid@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-07-15net/mlx5e: Verify encapsulation is supportedEli Cohen1-0/+4
When mlx5e_attach_encap() calls mlx5e_get_tc_tun() to get the tunnel info data struct, check that returned value is not NULL, as would be in the case of unsupported encapsulation. Fixes: d386939a327d2 ("net/mlx5e: Rearrange tc tunnel code in a modular way") Signed-off-by: Eli Cohen <eli@mellanox.com> Reviewed-by: Roi Dayan <roid@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-07-15vmxnet3: Remove call to memset after dma_alloc_coherentFuqian Huang1-1/+0
In commit 518a2f1925c3 ("dma-mapping: zero memory returned from dma_alloc_*"), dma_alloc_coherent has already zeroed the memory. So memset is not needed. Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-15hippi: Remove call to memset after pci_alloc_consistentFuqian Huang1-2/+0
pci_alloc_consistent calls dma_alloc_coherent directly. In commit 518a2f1925c3 ("dma-mapping: zero memory returned from dma_alloc_*"), dma_alloc_coherent has already zeroed the memory. So memset is not needed. Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-15ethernet: remove redundant memsetFuqian Huang14-27/+0
kvzalloc already zeroes the memory during the allocation. pci_alloc_consistent calls dma_alloc_coherent directly. In commit 518a2f1925c3 ("dma-mapping: zero memory returned from dma_alloc_*"), dma_alloc_coherent has already zeroed the memory. So the memset after these function is not needed. Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-15rt2x00usb: fix rx queue hangSoeren Moch1-6/+6
Since commit ed194d136769 ("usb: core: remove local_irq_save() around ->complete() handler") the handler rt2x00usb_interrupt_rxdone() is not running with interrupts disabled anymore. So this completion handler is not guaranteed to run completely before workqueue processing starts for the same queue entry. Be sure to set all other flags in the entry correctly before marking this entry ready for workqueue processing. This way we cannot miss error conditions that need to be signalled from the completion handler to the worker thread. Note that rt2x00usb_work_rxdone() processes all available entries, not only such for which queue_work() was called. This patch is similar to what commit df71c9cfceea ("rt2x00: fix order of entry flags modification") did for TX processing. This fixes a regression on a RT5370 based wifi stick in AP mode, which suddenly stopped data transmission after some period of heavy load. Also stopping the hanging hostapd resulted in the error message "ieee80211 phy0: rt2x00queue_flush_queue: Warning - Queue 14 failed to flush". Other operation modes are probably affected as well, this just was the used testcase. Fixes: ed194d136769 ("usb: core: remove local_irq_save() around ->complete() handler") Cc: stable@vger.kernel.org # 4.20+ Signed-off-by: Soeren Moch <smoch@web.de> Acked-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-07-15ath10k: work around uninitialized vht_pfr variableArnd Bergmann1-0/+2
As clang points out, the vht_pfr is assigned to a struct member without being initialized in one case: drivers/net/wireless/ath/ath10k/mac.c:7528:7: error: variable 'vht_pfr' is used uninitialized whenever 'if' condition is false [-Werror,-Wsometimes-uninitialized] if (!ath10k_mac_can_set_bitrate_mask(ar, band, mask, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/wireless/ath/ath10k/mac.c:7551:20: note: uninitialized use occurs here arvif->vht_pfr = vht_pfr; ^~~~~~~ drivers/net/wireless/ath/ath10k/mac.c:7528:3: note: remove the 'if' if its condition is always true if (!ath10k_mac_can_set_bitrate_mask(ar, band, mask, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/wireless/ath/ath10k/mac.c:7483:12: note: initialize the variable 'vht_pfr' to silence this warning u8 vht_pfr; Add an explicit but probably incorrect initialization here. I suspect we want a better fix here, but chose this approach to illustrate the issue. Fixes: 8b97b055dc9d ("ath10k: fix failure to set multiple fixed rate") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-07-15iwlwifi: pcie: add support for qu c-step devicesLuca Coelho4-0/+83
Add support for C-step devices. Currently we don't have a nice way of matching the step and choosing the proper configuration, so we need to switch the config structs one by one. Cc: stable@vger.kernel.org Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-07-15iwlwifi: add new cards for 9000 and 20000 seriesIhab Zhaika1-0/+2
add two new PCI ID's for 9000 and 20000 series Cc: stable@vger.kernel.org Signed-off-by: Ihab Zhaika <ihab.zhaika@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-07-15docs: driver-model: move it to the driver-api bookMauro Carvalho Chehab1-1/+1
The audience for the Kernel driver-model is clearly Kernel hackers. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> # ice driver changes