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2017-04-20net/mlx4: suppress 'may be used uninitialized' warningGreg Thelen
gcc 4.8.4 complains that mlx4_SW2HW_MPT_wrapper() uses an uninitialized 'mpt' variable: drivers/net/ethernet/mellanox/mlx4/resource_tracker.c: In function 'mlx4_SW2HW_MPT_wrapper': drivers/net/ethernet/mellanox/mlx4/resource_tracker.c:2802:12: warning: 'mpt' may be used uninitialized in this function [-Wmaybe-uninitialized] mpt->mtt = mtt; I think this warning is a false complaint. mpt is only used when mr_res_start_move_to() return zero, and in all such cases it initializes mpt. But apparently gcc cannot see that. Initialize mpt to avoid the warning. Signed-off-by: Greg Thelen <gthelen@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-20md/raid10: wait up frozen array in handle_write_completedGuoqing Jiang
Since nr_queued is changed, we need to call wake_up here if the array is already frozen and waiting for condition "nr_pending == nr_queued + extra" to be true. And commit 824e47daddbf ("RAID1: avoid unnecessary spin locks in I/O barrier code") which has already added the wake_up for raid1. Signed-off-by: Guoqing Jiang <gqjiang@suse.com> Reviewed-by: NeilBrown <neilb@suse.com> Signed-off-by: Shaohua Li <shli@fb.com>
2017-04-20platform/x86: hp-wmi: Cleanup local variable declarationsDarren Hart (VMware)
Declare like types on one line. Order declarations in decreasing length where possible. Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org> Tested-by: Carlo Caione <carlo@endlessm.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
2017-04-20uapi: fix linux/raid/md_p.h userspace compilation errorArtur Paszkiewicz
Use __le32 and __le64 instead of u32 and u64. This fixes klibc build error: In file included from /klibc/usr/klibc/../include/sys/md.h:30:0, from /klibc/usr/kinit/do_mounts_md.c:19: /linux-next/usr/include/linux/raid/md_p.h:414:51: error: 'u32' undeclared here (not in a function) (PPL_HEADER_SIZE - PPL_HDR_RESERVED - 4 * sizeof(u32) - sizeof(u64)) Reported-by: Greg Thelen <gthelen@google.com> Reported-by: Nigel Croxon <ncroxon@redhat.com> Tested-by: Greg Thelen <gthelen@google.com> Signed-off-by: Artur Paszkiewicz <artur.paszkiewicz@intel.com> Signed-off-by: Shaohua Li <shli@fb.com>
2017-04-20perf tools: Move timestamp routines from util.h to time-utils.hArnaldo Carvalho de Melo
We already have a header for time utilities, so use it. Link: http://lkml.kernel.org/n/tip-sijzpbvutlg0c3oxn49hy9ca@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-04-20perf tools: Move units conversion/formatting routines to separate objectArnaldo Carvalho de Melo
Out of util.h, to disentangle it a bit more. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-vpksyj3w5fk9t8s6mxmkajyr@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-04-20perf tools: Add signal.h to places using its definitionsArnaldo Carvalho de Melo
And remove it from util.h, disentangling it a bit more. Link: http://lkml.kernel.org/n/tip-2zg9s5nx90yde64j3g4z2uhk@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-04-20perf unwind: Provide only forward declarations for pointer typesArnaldo Carvalho de Melo
No need to drag the headers, helps in untangling them and reducing build time. Link: http://lkml.kernel.org/n/tip-l8soqph92duyw5jdha0fij8b@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-04-20IB/hfi1: OPA_VNIC RDMA netdev supportVishwanathapura, Niranjana
Add support to create and free OPA_VNIC rdma netdev devices. Implement netstack interface functionality including xmit_skb, receive side NAPI etc. Also implement rdma netdev control functions. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com> Signed-off-by: Andrzej Kacprowski <andrzej.kacprowski@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-04-20IB/opa-vnic: VNIC Ethernet Management Agent (VEMA) functionVishwanathapura, Niranjana
OPA VEMA function interfaces with the Infiniband MAD stack to exchange the management information packets with the Ethernet Manager (EM). It interfaces with the OPA VNIC netdev function to SET/GET the management information. The information exchanged with the EM includes class port details, encapsulation configuration, various counters, unicast and multicast MAC list and the MAC table. It also supports sending traps to the EM. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Sadanand Warrier <sadanand.warrier@intel.com> Signed-off-by: Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com> Signed-off-by: Sudeep Dutt <sudeep.dutt@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-04-20IB/opa-vnic: VNIC Ethernet Management Agent (VEMA) interfaceVishwanathapura, Niranjana
OPA VNIC EMA interface functions are the management interfaces to the OPA VNIC netdev. Add support to add and remove VNIC ports. Implement the required GET/SET management interface functions and processing of new management information. Add support to send trap notifications upon various events like interface status change, unicast/multicast mac list update and mac address change. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com> Signed-off-by: Sadanand Warrier <sadanand.warrier@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-04-20IB/opa-vnic: VNIC MAC table supportVishwanathapura, Niranjana
OPA VNIC MAC table contains the MAC address to DLID mappings provided by the Ethernet manager. During transmission, the MAC table provides the MAC address to DLID translation. Implement MAC table using simple hash list. Also provide support to update/query the MAC table by Ethernet manager. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com> Signed-off-by: Sadanand Warrier <sadanand.warrier@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-04-20IB/opa-vnic: VNIC statistics supportVishwanathapura, Niranjana
OPA VNIC driver statistics support maintains various counters including standard netdev counters and the Ethernet manager defined counters. Add the Ethtool hook to read the counters. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-04-20IB/opa-vnic: VNIC Ethernet Management (EM) structure definitionsVishwanathapura, Niranjana
Define VNIC EM MAD structures and the associated macros. These structures are used for information exchange between VNIC EM agent (EMA) on the host and the Ethernet manager. These include the virtual ethernet switch (vesw) port information, vesw port mac table, summay and error counters, vesw port interface mac lists and the EMA trap. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com> Signed-off-by: Sadanand Warrier <sadanand.warrier@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-04-20IB/opa-vnic: Virtual Network Interface Controller (VNIC) netdevVishwanathapura, Niranjana
OPA VNIC netdev function supports Ethernet functionality over Omni-Path fabric by encapsulating Ethernet packets inside Omni-Path packet header. It allocates a rdma netdev device and interfaces with the network stack to provide standard Ethernet network interfaces. It overrides HFI1 device's netdev operations where it is required. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com> Signed-off-by: Sadanand Warrier <sadanand.warrier@intel.com> Signed-off-by: Sudeep Dutt <sudeep.dutt@intel.com> Signed-off-by: Andrzej Kacprowski <andrzej.kacprowski@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-04-20IB/opa-vnic: Virtual Network Interface Controller (VNIC) interfaceVishwanathapura, Niranjana
Define OPA VNIC interface between hardware independent VNIC functionality and the hardware dependent VNIC functionality. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-04-20IB/opa-vnic: RDMA NETDEV interfaceVishwanathapura, Niranjana
Add rdma netdev interface to ib device structure allowing rdma netdev devices to be allocated by ib clients. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-04-20IB/opa-vnic: Virtual Network Interface Controller (VNIC) documentationVishwanathapura, Niranjana
Add OPA VNIC design document explaining the VNIC architecture and the driver design. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-04-20Merge branch 'k.o/for-4.12' into k.o/for-4.12-rdma-netdeviceDoug Ledford
2017-04-20IB/core: Rename uverbs event file structureMatan Barak
Previously, ib_uverbs_event_file was suffixed by _file as it contained the actual file information. Since it's now only used as base struct for ib_uverbs_async_event_file and ib_uverbs_completion_event_file, we change its name to ib_uverbs_event_queue. This represents its logical role better. Fixes: 1e7710f3f656 ('IB/core: Change completion channel to use the reworked objects schema') Signed-off-by: Matan Barak <matanb@mellanox.com> Reviewed-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-04-20IB/core: Don't use is_async in event files to infer events sizeMatan Barak
Previously, we inferred the events size in ib_uverbs_event_read by using the is_async flag. Instead of that, we pass the event size directly. Fixes: 1e7710f3f656 ('IB/core: Change completion channel to use the reworked objects schema') Signed-off-by: Matan Barak <matanb@mellanox.com> Reviewed-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-04-20IB/core: A small refactor in destroy WQ handlerMatan Barak
Instead of having uverbs_uobject_put both in the error flow and the good flow, we unite them. Fixes: fd3c7904db6e ('IB/core: Change idr objects to use the new schema') Signed-off-by: Matan Barak <matanb@mellanox.com> Reviewed-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-04-20IB/core: Nullify ib_uobject during allocationMatan Barak
Currently, we initialize all fields of ib_uobject straight after allocation. Therefore, a kmalloc was sufficient. Since ib_uobject could be embedded in a type specific structure, we nullify it to spare programmer errors. Fixes: 3832125624b7 ('IB/core: Add support for idr types') Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-04-20IB/core: Don't pass the lock state to _rdma_remove_commit_uobjectMatan Barak
The only scenario where this function was called while the lock is already taken is in the context cleanup scenario. Thus, in order not to pass the lock state to this function, we just call the remove logic straight from the cleanup context function. Fixes: 3832125624b7 ('IB/core: Add support for idr types') Signed-off-by: Matan Barak <matanb@mellanox.com> Reviewed-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-04-20IB/core: Rename write flag to exclusive in rdma_coreMatan Barak
We rename the "write" flags to "exclusive", as it's used for both WRITE and DESTROY actions. Fixes: 3832125624b7 ('IB/core: Add support for idr types') Signed-off-by: Matan Barak <matanb@mellanox.com> Reviewed-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-04-20blk-throttle: fix unused variable warning with BLK_DEV_THROTTLING_LOW=nJens Axboe
We trigger this warning: block/blk-throttle.c: In function ‘blk_throtl_bio’: block/blk-throttle.c:2042:6: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable] int ret; ^~~ since we only assign 'ret' if BLK_DEV_THROTTLING_LOW is off, we never check it. Reported-by: Bart Van Assche <bart.vanassche@sandisk.com> Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2017-04-20bfq: fix compile error if CONFIG_CGROUPS=nJens Axboe
If we don't have CGROUPS enabled, the compile ends in the following misery: In file included from ../block/bfq-iosched.c:105:0: ../block/bfq-iosched.h:819:22: error: array type has incomplete element type extern struct cftype bfq_blkcg_legacy_files[]; ^ ../block/bfq-iosched.h:820:22: error: array type has incomplete element type extern struct cftype bfq_blkg_files[]; ^ Move the declarations under the right ifdef. Reported-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jens Axboe <axboe@fb.com>
2017-04-20Merge tag 'usb-serial-4.12-rc1' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-next Johan writes: USB-serial updates for v4.12-rc1 Here are the USB-serial updates for 4.12, including: - support for devices with up to 16 ports (e.g. some Moxa devices) - support for endpoint sanity checks in core, which allows for code sharing and avoids allocating resources for rejected interfaces - support for endpoint-port remapping, which allows some driver hacks to be removed as well as omninet to use the generic write implementation - removal of an obsolete tty open-race workaround which prevented a port from being opened immediately after having been registered - generic-driver support for interfaces with just a bulk-in endpoint - improved ftdi_sio event-char and latency-timer handling - improved ftdi_sio support for some broken BM chips Included are also various clean ups and a new ftdi_sio device id. All have been in linux-next with no reported issues. Signed-off-by: Johan Hovold <johan@kernel.org>
2017-04-20Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
A function in kernel/bpf/syscall.c which got a bug fix in 'net' was moved to kernel/bpf/verifier.c in 'net-next'. Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-20block, bfq: don't dereference bic before null checking itColin Ian King
The call to bfq_check_ioprio_change will dereference bic, however, the null check for bic is after this call. Move the the null check on bic to before the call to avoid any potential null pointer dereference issues. Detected by CoverityScan, CID#1430138 ("Dereference before null check") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2017-04-20ligtnvm: fix double blk_put_queue on same queueRakesh Pandit
On an error path in NVM_DEV_CREATE ioctl blk_put_queue is being called twice: one via blk_cleanup_queue and another via put_disk. Straight fix seems to remove queue pointer so that disk_release never ends up caling blk_put_queue again. [ 391.808827] WARNING: CPU: 1 PID: 1250 at lib/refcount.c:128 refcount_sub_and_test+0x70/0x80 [ 391.808830] refcount_t: underflow; use-after-free. [ 391.808832] Modules linked in: nf_conntrack_netbios_ns............ [ 391.809052] CPU: 1 PID: 1250 Comm: nvme Not tainted......... [ 391.809057] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.7.5-0-ge51488c-20140602_164612-nilsson.home.kraxel.org 04/01/2014 [ 391.809060] Call Trace: [ 391.809079] dump_stack+0x63/0x86 [ 391.809094] __warn+0xcb/0xf0 [ 391.809103] warn_slowpath_fmt+0x5f/0x80 [ 391.809118] refcount_sub_and_test+0x70/0x80 [ 391.809125] refcount_dec_and_test+0x11/0x20 [ 391.809136] kobject_put+0x1f/0x60 [ 391.809149] blk_put_queue+0x15/0x20 [ 391.809159] disk_release+0xae/0xf0 [ 391.809172] device_release+0x32/0x90 [ 391.809184] kobject_release+0x6a/0x170 [ 391.809196] kobject_put+0x2f/0x60 [ 391.809206] put_disk+0x17/0x20 [ 391.809219] nvm_ioctl_dev_create.isra.16+0x897/0xa30 [ 391.809236] nvm_ctl_ioctl+0x23c/0x4c0 [ 391.809248] do_vfs_ioctl+0xa3/0x5f0 [ 391.809258] SyS_ioctl+0x79/0x90 [ 391.809271] entry_SYSCALL_64_fastpath+0x1a/0xa9 [ 391.809280] RIP: 0033:0x7f5d3ef363c7 [ 391.809286] RSP: 002b:00007ffc72ed8d78 EFLAGS: 00000206 ORIG_RAX: 0000000000000010 [ 391.809296] RAX: ffffffffffffffda RBX: 00007ffc72edb552 RCX: 00007f5d3ef363c7 [ 391.809301] RDX: 00007ffc72ed8d90 RSI: 0000000040804c22 RDI: 0000000000000003 [ 391.809306] RBP: 0000000000000001 R08: 0000000000000020 R09: 0000000000000001 [ 391.809311] R10: 000000000000053f R11: 0000000000000206 R12: 0000000000000000 [ 391.809316] R13: 0000000000000000 R14: 00007ffc72edb58d R15: 00007ffc72edb581 Signed-off-by: Rakesh Pandit <rakesh@tuxera.com> Reviewed-by: Matias Bjørling <matias@cnexlabs.com> Fixes: 7d1ef2f408ab "lightnvm: fix cleanup order of disk on init error" Signed-off-by: Jens Axboe <axboe@fb.com>
2017-04-20irqchip/mips-gic: Replace static map with dynamicMatt Redfearn
Commit 4cfffcfa5106 ("irqchip/mips-gic: Fix local interrupts") fixed local interrupts by creating virq mappings for them all at startup. Unfortunately this change broke legacy IRQ controllers in the same system, such as the i8259 on the Malta platform, as it allocates virq numbers that were expected to be available for the legacy controller. Instead of creating the mappings statically when the GIC is probed, re-introduce the irq domain .map function, removed by commit e875bd66dfb ("irqchip/mips-gic: Fix local interrupts") and use it to set up the irq handler and chip. Since a good deal of the required functionality is already implemented by gic_irq_domain_alloc, repurpose that function for gic_irq_domain_map and add a new gic_irq_domain_alloc which wraps gic_irq_domain_map with the necessary conversion. This change fixes the legacy interrupt controller of the Malta platform without breaking the perf interrupt fixed by commit e875bd66dfb ("irqchip/mips-gic: Fix local interrupts"). Signed-off-by: Matt Redfearn <matt.redfearn@imgtec.com> Cc: linux-mips@linux-mips.org Cc: Jason Cooper <jason@lakedaemon.net> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: Ralf Baechle <ralf@linux-mips.org> Link: http://lkml.kernel.org/r/1492679256-14513-4-git-send-email-matt.redfearn@imgtec.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2017-04-20irqchip/mips-gic: Remove device IRQ domainPaul Burton
In commit c98c1822ee13 ("irqchip/mips-gic: Add device hierarchy domain") Qais indicates that he felt having a separate device IRQ domain was cleaner, but along with everyone else I'm aware of touching this driver I disagree. Remove the separate device IRQ domain so that we simply have the main GIC IRQ domain used for devices, and an IPI IRQ domain as a child. The logic for handling the device interrupts & IPIs is cleanly separated into the appropriate domain ops, making it much easier to reason about what the driver is doing than the previous approach where the 2 child domains had to call up to their parent, which had to handle both types of interrupt & had all sorts of weird & wonderful duplication or outright clobbering of setup performed by multiple domains. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Signed-off-by: Matt Redfearn <matt.redfearn@imgtec.com> Cc: linux-mips@linux-mips.org Cc: Jason Cooper <jason@lakedaemon.net> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: Ralf Baechle <ralf@linux-mips.org> Link: http://lkml.kernel.org/r/1492679256-14513-3-git-send-email-matt.redfearn@imgtec.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2017-04-20irqchip/mips-gic: Separate IPI reservation & usage trackingPaul Burton
Since commit 2af70a962070 ("irqchip/mips-gic: Add a IPI hierarchy domain") introduced the GIC IPI IRQ domain we have tracked both reservation of interrupts & their use with a single bitmap - ipi_resrv. If an interrupt is reserved for use as an IPI but not actually in use then the appropriate bit is set in ipi_resrv. If an interrupt is either not reserved for use as an IPI or has been allocated as one then the appropriate bit is clear in ipi_resrv. Unfortunately this means that checking whether a bit is set in ipi_resrv to prevent IPI interrupts being allocated for use with a device is broken, because if the interrupt has been allocated as an IPI first then its bit will be clear. Fix this by separating the tracking of IPI reservation & usage, introducing a separate ipi_available bitmap for the latter. This means that ipi_resrv will now always have bits set corresponding to all interrupts reserved for use as IPIs, whether or not they have been allocated yet, and therefore that checking it when allocating device interrupts works as expected. Fixes: 2af70a962070 ("irqchip/mips-gic: Add a IPI hierarchy domain") Signed-off-by: Paul Burton <paul.burton@imgtec.com> Signed-off-by: Matt Redfearn <matt.redfearn@imgtec.com> Cc: linux-mips@linux-mips.org Cc: Jason Cooper <jason@lakedaemon.net> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: Ralf Baechle <ralf@linux-mips.org> Link: http://lkml.kernel.org/r/1492679256-14513-2-git-send-email-matt.redfearn@imgtec.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2017-04-20Merge branch 'linus' into irq/coreThomas Gleixner
Pick up upstream fixes to avoid conflicts with pending patches.
2017-04-20genirq/affinity: Fix calculating vectors to assignKeith Busch
The vectors_per_node is calculated from the remaining available vectors. The current vector starts after pre_vectors, so we need to subtract that from the current to properly account for the number of remaining vectors to assign. Fixes: 3412386b531 ("irq/affinity: Fix extra vecs calculation") Reported-by: Andrei Vagin <avagin@virtuozzo.com> Signed-off-by: Keith Busch <keith.busch@intel.com> Link: http://lkml.kernel.org/r/1492645870-13019-1-git-send-email-keith.busch@intel.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2017-04-20x86/intel_rdt: Return error for incorrect resource names in schemataVikas Shivappa
When schemata parses the resource names it does not return an error if it detects incorrect resource names and fails quietly. This happens because for_each_enabled_rdt_resource(r) leaves "r" pointing beyond the end of the rdt_resources_all[] array, and the check for !r->name results in an out of bounds access. Split the resource parsing part into a helper function to avoid the issue. [ tglx: Made it readable by splitting the parser loop out into a function ] Reported-by: Prakhya, Sai Praneeth <sai.praneeth.prakhya@intel.com> Signed-off-by: Vikas Shivappa <vikas.shivappa@linux.intel.com> Tested-by: Prakhya, Sai Praneeth <sai.praneeth.prakhya@intel.com> Cc: fenghua.yu@intel.com Cc: tony.luck@intel.com Cc: ravi.v.shankar@intel.com Cc: vikas.shivappa@intel.com Link: http://lkml.kernel.org/r/1492645804-17465-4-git-send-email-vikas.shivappa@linux.intel.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2017-04-20x86/intel_rdt: Trim whitespace while parsing schemata inputVikas Shivappa
Schemata is displayed in tabular format which introduces some whitespace to show data in a tabular format. Writing back the same data fails as the parser does not handle the whitespace. Trim the leading and trailing whitespace before parsing. Reported-by: Prakhya, Sai Praneeth <sai.praneeth.prakhya@intel.com> Signed-off-by: Vikas Shivappa <vikas.shivappa@linux.intel.com> Tested-by: Prakhya, Sai Praneeth <sai.praneeth.prakhya@intel.com> Cc: fenghua.yu@intel.com Cc: tony.luck@intel.com Cc: ravi.v.shankar@intel.com Cc: vikas.shivappa@intel.com Link: http://lkml.kernel.org/r/1492645804-17465-3-git-send-email-vikas.shivappa@linux.intel.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2017-04-20x86/intel_rdt: Fix padding when resource is enabled via mountVikas Shivappa
Currently max width of 'resource name' and 'resource data' is being initialized based on 'enabled resources' during boot. But the mount can enable different capable resources at a later time which upsets the tabular format of schemata. Fix this to be based on 'all capable' resources. Signed-off-by: Vikas Shivappa <vikas.shivappa@linux.intel.com> Tested-by: Prakhya, Sai Praneeth <sai.praneeth.prakhya@intel.com> Cc: fenghua.yu@intel.com Cc: tony.luck@intel.com Cc: ravi.v.shankar@intel.com Cc: vikas.shivappa@intel.com Link: http://lkml.kernel.org/r/1492645804-17465-2-git-send-email-vikas.shivappa@linux.intel.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2017-04-20x86/irq: Optimize free vector check in the CPU offline pathChen Yu
Before offlining a CPU its required to check whether there are enough free irq vectors available so interrupts can be migrated away from the CPU. This check is executed whether its required or not and neither stops searching when the number of required free vectors are reached. Bypass the free vector check if the current CPU has no irq to migrate and leave the for_each_online_cpu() loop when the free vector count reaches the number of required vectors. Suggested-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Chen Yu <yu.c.chen@intel.com> Cc: Prarit Bhargava <prarit@redhat.com> Cc: Len Brown <lenb@kernel.orq> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Link: http://lkml.kernel.org/r/1492357410-510-1-git-send-email-yu.c.chen@intel.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2017-04-20powerpc/kprobes: Emulate instructions on kprobe handler re-entryNaveen N. Rao
On kprobe handler re-entry, try to emulate the instruction rather than single stepping always. Acked-by: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com> Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-04-20powerpc/kprobes: Factor out code to emulate instruction into a helperNaveen N. Rao
Factor out code to emulate instruction into a try_to_emulate() helper function. This makes no functional changes. Acked-by: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com> Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-04-20powerpc/kretprobes: Override default function entry offsetNaveen N. Rao
With ABIv2, we offset 8 bytes into a function to get at the local entry point. mpe: NB this function is currently not called, the change to generic code to call it is being merged via the tip tree. Acked-by: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com> Acked-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-04-20powerpc/kprobes: Fix handling of function offsets on ABIv2Naveen N. Rao
commit 239aeba76409 ("perf powerpc: Fix kprobe and kretprobe handling with kallsyms on ppc64le") changed how we use the offset field in struct kprobe on ABIv2. perf now offsets from the global entry point if an offset is specified and otherwise chooses the local entry point. Fix the same in kernel for kprobe API users. We do this by extending kprobe_lookup_name() to accept an additional parameter to indicate the offset specified with the kprobe registration. If offset is 0, we return the local function entry and return the global entry point otherwise. With: # cd /sys/kernel/debug/tracing/ # echo "p _do_fork" >> kprobe_events # echo "p _do_fork+0x10" >> kprobe_events before this patch: # cat ../kprobes/list c0000000000d0748 k _do_fork+0x8 [DISABLED] c0000000000d0758 k _do_fork+0x18 [DISABLED] c0000000000412b0 k kretprobe_trampoline+0x0 [OPTIMIZED] and after: # cat ../kprobes/list c0000000000d04c8 k _do_fork+0x8 [DISABLED] c0000000000d04d0 k _do_fork+0x10 [DISABLED] c0000000000412b0 k kretprobe_trampoline+0x0 [OPTIMIZED] Acked-by: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com> Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-04-20kprobes: Convert kprobe_lookup_name() to a functionNaveen N. Rao
The macro is now pretty long and ugly on powerpc. In the light of further changes needed here, convert it to a __weak variant to be over-ridden with a nicer looking function. Suggested-by: Masami Hiramatsu <mhiramat@kernel.org> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-04-20kprobes: Skip preparing optprobe if the probe is ftrace-basedMasami Hiramatsu
Skip preparing optprobe if the probe is ftrace-based, since anyway, it must not be optimized (or already optimized by ftrace). Tested-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-04-20ALSA: fireface: obsolete usage of ktime_set() for zero assignmentTakashi Sakamoto
In development period for Linux v4.10, ktime_t became an alias of s64, instead of union. I forgot it. We can just assign zero, instead of usage of ktime_set(0, 0). Fixes: 19174295788 ("ALSA: fireface: add transaction support") Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-04-20timer/sysclt: Restrict timer migration sysctl values to 0 and 1Myungho Jung
timer_migration sysctl acts as a boolean switch, so the allowed values should be restricted to 0 and 1. Add the necessary extra fields to the sysctl table entry to enforce that. [ tglx: Rewrote changelog ] Signed-off-by: Myungho Jung <mhjungk@gmail.com> Link: http://lkml.kernel.org/r/1492640690-3550-1-git-send-email-mhjungk@gmail.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2017-04-20arm64/arch_timer: Mark errata handlers as __maybe_unusedArnd Bergmann
In some rare randconfig builds, we end up with two functions being entirely unused: drivers/clocksource/arm_arch_timer.c:342:12: error: 'erratum_set_next_event_tval_phys' defined but not used [-Werror=unused-function] static int erratum_set_next_event_tval_phys(unsigned long evt, drivers/clocksource/arm_arch_timer.c:335:12: error: 'erratum_set_next_event_tval_virt' defined but not used [-Werror=unused-function] static int erratum_set_next_event_tval_virt(unsigned long evt, We could add an #ifdef around them, but we would already have to check for several symbols there and there is a chance this would get more complicated over time, so marking them as __maybe_unused is the simplest way to avoid the harmless warnings. Fixes: 01d3e3ff2608 ("arm64: arch_timer: Rework the set_next_event workarounds") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Marc Zyngier <marc.zyngier@arm.com> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: linux-arm-kernel@lists.infradead.org Cc: Christoffer Dall <christoffer.dall@linaro.org> Link: http://lkml.kernel.org/r/20170419173737.3846098-1-arnd@arndb.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2017-04-20Clocksource/mips-gic: Remove redundant non devicetree initMatt Redfearn
Malta was the only platform probing this driver from platform code without using device tree. With that code removed, gic_clocksource_init is redundant so remove it. Signed-off-by: Matt Redfearn <matt.redfearn@imgtec.com> Cc: linux-mips@linux-mips.org Cc: Jason Cooper <jason@lakedaemon.net> Cc: Paul Burton <paul.burton@imgtec.com> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Ralf Baechle <ralf@linux-mips.org> Link: http://lkml.kernel.org/r/1492604806-23420-2-git-send-email-matt.redfearn@imgtec.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
generated by cgit (git 2.34.1) at 2025-09-23 14:52:44 +0000