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2017-11-13clk: mmp: Use common error handling code in mmp_clk_register_mix()Markus Elfring1-6/+8
Add a jump target so that a bit of exception handling can be better reused at the end of this function. Signed-off-by: Markus Elfring <[email protected]> Signed-off-by: Stephen Boyd <[email protected]>
2017-11-13clk: mmp: Delete error messages for failed memory allocationsMarkus Elfring3-14/+3
Omit extra messages for a memory allocation failure in these functions. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <[email protected]> Signed-off-by: Stephen Boyd <[email protected]>
2017-11-13clk: clk-xgene: Adjust six checks for null pointersMarkus Elfring1-6/+6
The script “checkpatch.pl” pointed information out like the following. Comparison to NULL could be written ... Thus fix the affected source code places. Signed-off-by: Markus Elfring <[email protected]> Signed-off-by: Stephen Boyd <[email protected]>
2017-11-13clk: clk-xgene: Delete error messages for failed memory allocationsMarkus Elfring1-6/+2
Omit extra messages for a memory allocation failure in these functions. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <[email protected]> Signed-off-by: Stephen Boyd <[email protected]>
2017-11-13clk: clk-u300: Fix a typo in two comment linesMarkus Elfring1-2/+2
Add a missing character in these descriptions. Signed-off-by: Markus Elfring <[email protected]> Signed-off-by: Stephen Boyd <[email protected]>
2017-11-13clk: clk-u300: Add some spaces for better code readabilityMarkus Elfring1-32/+32
Use space characters at some source code places according to the Linux coding style convention. Signed-off-by: Markus Elfring <[email protected]> Signed-off-by: Stephen Boyd <[email protected]>
2017-11-13clk: clk-u300: Improve sizeof() usageMarkus Elfring1-2/+2
Replace the specification of data structures by pointer dereferences as the parameter for the operator "sizeof" to make the corresponding size determination a bit safer according to the Linux coding style convention. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <[email protected]> Signed-off-by: Stephen Boyd <[email protected]>
2017-11-13clk: clk-u300: Delete error messages for failed memory allocationsMarkus Elfring1-8/+4
Omit extra messages for a memory allocation failure in these functions. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <[email protected]> Signed-off-by: Stephen Boyd <[email protected]>
2017-11-13Merge branch 'irq-core-for-linus' of ↵Linus Torvalds19-331/+1503
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq core updates from Thomas Gleixner: "A rather large update for the interrupt core code and the irq chip drivers: - Add a new bitmap matrix allocator and supporting changes, which is used to replace the x86 vector allocator which comes with separate pull request. This allows to replace the convoluted nested loop allocation function in x86 with a facility which supports the recently added property of managed interrupts proper and allows to switch to a best effort vector reservation scheme, which addresses problems with vector exhaustion. - A large update to the ARM GIC-V3-ITS driver adding support for range selectors. - New interrupt controllers: - Meson and Meson8 GPIO - BCM7271 L2 - Socionext EXIU If you expected that this will stop at some point, I have to disappoint you. There are new ones posted already. Sigh! - STM32 interrupt controller support for new platforms. - A pile of fixes, cleanups and updates to the MIPS GIC driver - The usual small fixes, cleanups and updates all over the place. Most visible one is to move the irq chip drivers Kconfig switches into a separate Kconfig menu" * 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (70 commits) genirq: Fix type of shifting literal 1 in __setup_irq() irqdomain: Drop pointless NULL check in virq_debug_show_one genirq/proc: Return proper error code when irq_set_affinity() fails irq/work: Use llist_for_each_entry_safe irqchip: mips-gic: Print warning if inherited GIC base is used irqchip/mips-gic: Add pr_fmt and reword pr_* messages irqchip/stm32: Move the wakeup on interrupt mask irqchip/stm32: Fix initial values irqchip/stm32: Add stm32h7 support dt-bindings/interrupt-controllers: Add compatible string for stm32h7 irqchip/stm32: Add multi-bank management irqchip/stm32: Select GENERIC_IRQ_CHIP irqchip/exiu: Add support for Socionext Synquacer EXIU controller dt-bindings: Add description of Socionext EXIU interrupt controller irqchip/gic-v3-its: Fix VPE activate callback return value irqchip: mips-gic: Make IPI bitmaps static irqchip: mips-gic: Share register writes in gic_set_type() irqchip: mips-gic: Remove gic_vpes variable irqchip: mips-gic: Use num_possible_cpus() to reserve IPIs irqchip: mips-gic: Configure EIC when CPUs come online ...
2017-11-13clk: clk-mux: Improve a size determination in clk_hw_register_mux_table()Markus Elfring1-1/+1
Replace the specification of a data structure by a pointer dereference as the parameter for the operator "sizeof" to make the corresponding size determination a bit safer according to the Linux coding style convention. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <[email protected]> Signed-off-by: Stephen Boyd <[email protected]>
2017-11-13clk: clk-mux: Delete an error message for a failed memory allocationMarkus Elfring1-3/+1
Omit an extra message for a memory allocation failure in this function. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <[email protected]> [[email protected]: Cleanup commit text] Signed-off-by: Stephen Boyd <[email protected]>
2017-11-13Merge branch 'next' into for-linusDmitry Torokhov10293-220572/+1026691
Prepare input updates for 4.15 merge window.
2017-11-13Merge branch 'x86-platform-for-linus' of ↵Linus Torvalds3-8/+6
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 platform updates from Ingo Molnar: "The main changes in this cycle were: - a refactoring of the early virt init code by merging 'struct x86_hyper' into 'struct x86_platform' and 'struct x86_init', which allows simplifications and also the addition of a new ->guest_late_init() callback. (Juergen Gross) - timer_setup() conversion of the UV code (Kees Cook)" * 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/virt/xen: Use guest_late_init to detect Xen PVH guest x86/virt, x86/platform: Add ->guest_late_init() callback to hypervisor_x86 structure x86/virt, x86/acpi: Add test for ACPI_FADT_NO_VGA x86/virt: Add enum for hypervisors to replace x86_hyper x86/virt, x86/platform: Merge 'struct x86_hyper' into 'struct x86_platform' and 'struct x86_init' x86/platform/UV: Convert timers to use timer_setup()
2017-11-13drm/vc4: Account for interrupts in flightStefan Schake1-0/+6
Synchronously disable the IRQ to make the following cancel_work_sync invocation effective. An interrupt in flight could enqueue further overflow mem work. As we free the binner BO immediately following vc4_irq_uninstall this caused a NULL pointer dereference in the work callback vc4_overflow_mem_work. Link: https://github.com/anholt/linux/issues/114 Signed-off-by: Stefan Schake <[email protected]> Fixes: d5b1a78a772f ("drm/vc4: Add support for drawing 3D frames.") Signed-off-by: Eric Anholt <[email protected]> Reviewed-by: Eric Anholt <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2017-11-13drm/amd/display: use num_timing_generator instead of pipe_countKen Chalmers1-1/+1
The two are not necessarily the same. Signed-off-by: Ken Chalmers <[email protected]> Reviewed-by: Tony Cheng <[email protected]> Acked-by: Harry Wentland <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
2017-11-13drm/amd/display: use configurable FBC option in dmRoman Li2-4/+4
Replace ENABLE_FBC macro with config option CONFIG_DRM_AMD_DC_FBC in dm. DC code has been already updated the same way. Signed-off-by: Roman Li <[email protected]> Reviewed-by: Shirish Shankarappa <[email protected]> Acked-by: Harry Wentland <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
2017-11-13drm/amd/display: fix AZ clock not enabled before program AZ endpointCharlene Liu1-2/+29
Signed-off-by: Charlene Liu <[email protected]> Reviewed-by: Anthony Koo <[email protected]> Acked-by: Harry Wentland <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
2017-11-13RDMA/core: Rename kernel modify_cq to better describe its usageLeon Romanovsky3-5/+6
Current ib_modify_cq() is used to set CQ moderation parameters. This patch renames ib_modify_cq() to be rdma_set_cq_moderation(), because the kernel version of RDMA API doesn't need to follow already exposed to user's API pattern (create_XXX/modify_XXX/query_XXX/destroy_XXX) and better to have more accurate name which describes the actual usage. Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13IB/mlx5: Add CQ moderation capability to query_deviceYonatan Cohen1-0/+7
query_device can now obtain the maximum values for cq_max_count and cq_period, needed for cq moderation. Signed-off-by: Yonatan Cohen <[email protected]> Reviewed-by: Majd Dibbiny <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13IB/mlx4: Add CQ moderation capability to query_deviceYonatan Cohen1-0/+3
query_device can now obtain the maximum values for cq_max_count and cq_period, needed for cq moderation. Signed-off-by: Yonatan Cohen <[email protected]> Reviewed-by: Majd Dibbiny <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13IB/uverbs: Add CQ moderation capability to query_deviceYonatan Cohen1-0/+9
The query_device function can now obtain the maximum values for cq_max_count and cq_period, needed for CQ moderation. cq_max_count is a 16 bits number that determines the number of CQEs to accumulate before generating an event. cq_period is a 16 bits number that determines the timeout in micro seconds from the last event generated, upon which a new event will be generated even if cq_max_count was not reached. Signed-off-by: Yonatan Cohen <[email protected]> Reviewed-by: Majd Dibbiny <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13IB/mlx5: Exposing modify CQ callback to uverbs layerYonatan Cohen2-1/+5
Exposed mlx5_ib_modify_cq to be called from ib device verb list. Signed-off-by: Yonatan Cohen <[email protected]> Reviewed-by: Majd Dibbiny <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13IB/mlx4: Exposing modify CQ callback to uverbs layerYonatan Cohen2-0/+4
Exposed mlx4_ib_modify_cq to be called from ib device verb list. Signed-off-by: Yonatan Cohen <[email protected]> Reviewed-by: Majd Dibbiny <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13IB/uverbs: Allow CQ moderation with modify CQYonatan Cohen3-0/+44
Uverbs support in modify_cq for CQ moderation only. Gives ability to change cq_max_count and cq_period. CQ moderation enhance performance by moderating the number of CQEs needed to create an event instead of application having to suffer from event per-CQE. To achieve CQ moderation the application needs to set cq_max_count and cq_period. cq_max_count - defines the number of CQEs needed to create an event. cq_period - defines the timeout (micro seconds) between last event and a new one that will occur even if cq_max_count was not satisfied Signed-off-by: Yonatan Cohen <[email protected]> Reviewed-by: Majd Dibbiny <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13iw_cxgb4: atomically flush the qpSteve Wise1-8/+11
__flush_qp() has a race condition where during the flush operation, the qp lock is released allowing another thread to possibly post a WR, which corrupts the queue state, possibly causing crashes. The lock was released to preserve the cq/qp locking hierarchy of cq first, then qp. However releasing the qp lock is not necessary; both RQ and SQ CQ locks can be acquired first, followed by the qp lock, and then the RQ and SQ flushing can be done w/o unlocking. Signed-off-by: Steve Wise <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13iw_cxgb4: only call the cq comp_handler when the cq is armedSteve Wise2-11/+17
The ULPs completion handler should only be called if the CQ is armed for notification. Signed-off-by: Steve Wise <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13iw_cxgb4: Fix possible circular dependency locking warningBharat Potnuri3-25/+39
Locking sequence of iw_cxgb4 and RoCE drivers in ib_register_device() is slightly different and this leads to possible circular dependency locking warning when both the devices are brought up. Here is the locking sequence upto ib_register_device(): iw_cxgb4: rtnl_mutex(net stack) --> uld_mutex --> device_mutex RoCE drivers: device_mutex --> rtnl_mutex Here is the possibility of cross locking: CPU #0 (iw_cxgb4) CPU #1 (RoCE drivers) -> on interface up cxgb4_up() executed with rtnl_mutex held -> hold uld_mutex and try registering ib device -> In ib_register_device() hold device_mutex -> hold device mutex in ib_register_device -> try acquiring rtnl_mutex in ib_enum_roce_netdev() Current patch schedules the ib_register_device() functionality of iw_cxgb4 to a workqueue to prevent the possible cross-locking. Also rename the labels in c4iw_reister_device(). Signed-off-by: Potnuri Bharat Teja <[email protected]> Reviewed-by: Steve Wise <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13Merge branch 'sched-core-for-linus' of ↵Linus Torvalds2-4/+13
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull scheduler updates from Ingo Molnar: "The main updates in this cycle were: - Group balancing enhancements and cleanups (Brendan Jackman) - Move CPU isolation related functionality into its separate kernel/sched/isolation.c file, with related 'housekeeping_*()' namespace and nomenclature et al. (Frederic Weisbecker) - Improve the interactive/cpu-intense fairness calculation (Josef Bacik) - Improve the PELT code and related cleanups (Peter Zijlstra) - Improve the logic of pick_next_task_fair() (Uladzislau Rezki) - Improve the RT IPI based balancing logic (Steven Rostedt) - Various micro-optimizations: - better !CONFIG_SCHED_DEBUG optimizations (Patrick Bellasi) - better idle loop (Cheng Jian) - ... plus misc fixes, cleanups and updates" * 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (54 commits) sched/core: Optimize sched_feat() for !CONFIG_SCHED_DEBUG builds sched/sysctl: Fix attributes of some extern declarations sched/isolation: Document isolcpus= boot parameter flags, mark it deprecated sched/isolation: Add basic isolcpus flags sched/isolation: Move isolcpus= handling to the housekeeping code sched/isolation: Handle the nohz_full= parameter sched/isolation: Introduce housekeeping flags sched/isolation: Split out new CONFIG_CPU_ISOLATION=y config from CONFIG_NO_HZ_FULL sched/isolation: Rename is_housekeeping_cpu() to housekeeping_cpu() sched/isolation: Use its own static key sched/isolation: Make the housekeeping cpumask private sched/isolation: Provide a dynamic off-case to housekeeping_any_cpu() sched/isolation, watchdog: Use housekeeping_cpumask() instead of ad-hoc version sched/isolation: Move housekeeping related code to its own file sched/idle: Micro-optimize the idle loop sched/isolcpus: Fix "isolcpus=" boot parameter handling when !CONFIG_CPUMASK_OFFSTACK x86/tsc: Append the 'tsc=' description for the 'tsc=unstable' boot parameter sched/rt: Simplify the IPI based RT balancing logic block/ioprio: Use a helper to check for RT prio sched/rt: Add a helper to test for a RT task ...
2017-11-13pinctrl: gemini: Fix missing pad descriptionsLinus Walleij1-0/+2
A pretty clever static checker found a bug in my patch: I added more bits to a bitmask but didn't extend the array indexed to the same bitmask. Fixes: 756a024f3983 ("pinctrl: gemini: Fix GMAC groups") Reported-by: Dan Carpenter <[email protected]> Signed-off-by: Linus Walleij <[email protected]>
2017-11-13RDMA/bnxt_re: report vlan_id and sl in qp1 recv completionDevesh Sharma2-1/+35
In a real RoCE v2 network it is possible to have two Sections of network have same IP hence same gid. However those may have different vlans. During connection resolution it is important to report the actual vlan on which the MAD packet was received instead of relying on other means to resolve vlan-id. ib_find_gid_index should not be used to resolve the vlan-id using sgid of the local system where the packet was received. Our device has the capability to report the actual VLAN-ID in the GSI qp completions. Since we have the capability our driver should move away from resolving the vlan-id with the help of SGID at the destination port. Signed-off-by: Devesh Sharma <[email protected]> Reported-by: Parav Pandit <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13pinctrl: Add some depends on HAS_IOMEMLinus Walleij1-0/+2
Some compilation fallout from UM Linux (which does not have IOMEM) makes it necessary to depend on HAS_IOMEM for drivers that doesn't have other factors restricting their selection. Cc: Phil Reid <[email protected]> Reviewed-by: Sebastian Reichel <[email protected]> Reported-by: R. Daneel Olivaw <[email protected]> Signed-off-by: Linus Walleij <[email protected]>
2017-11-13IB/core: Only maintain real QPs in the security listsDaniel Jurgens1-23/+28
When modify QP is called on a shared QP update the security context for the real QP. When security is subsequently enforced the shared QP handles will be checked as well. Without this change shared QP handles get added to the port/pkey lists, which is a bug, because not all shared QP handles will be checked for access. Also the shared QP security context wouldn't get removed from the port/pkey lists causing access to free memory and list corruption when they are destroyed. Cc: [email protected] Fixes: d291f1a65232 ("IB/core: Enforce PKey security on QPs") Signed-off-by: Daniel Jurgens <[email protected]> Reviewed-by: Parav Pandit <[email protected]> Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13IB/ocrdma_hw: remove unnecessary code in ocrdma_mbx_dealloc_lkeyGustavo A. R. Silva1-4/+2
Check on return value and goto label mbx_err are unnecessary. Addresses-Coverity-ID: 1268780 Signed-off-by: Gustavo A. R. Silva <[email protected]> Reviewed-by: Yuval Shaia <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13RDMA/core: Make function rdma_copy_addr return voidYuval Shaia2-19/+16
Function returns zero - make it void. While there make struct net_device const. Signed-off-by: Yuval Shaia <[email protected]> Reviewed-by: Parav Pandit <[email protected]> Reviewed-by: Leon Romanovsky <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13RDMA/vmw_pvrdma: Add shared receive queue supportBryan Tan8-14/+521
Add the required functions needed to support SRQs. Currently, kernel clients are not supported. SRQs will only be available in userspace. Reviewed-by: Adit Ranadive <[email protected]> Reviewed-by: Aditya Sarwade <[email protected]> Reviewed-by: Jorgen Hansen <[email protected]> Reviewed-by: Nitish Bhat <[email protected]> Signed-off-by: Bryan Tan <[email protected]> Reviewed-by: Yuval Shaia <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13RDMA/core: avoid uninitialized variable warning in create_udataArnd Bergmann1-11/+10
As Dan pointed out, the rework I did makes it harder for smatch and other static checkers to figure out what is going on with the uninitialized pointers. By open-coding the call in create_udata(), we make it more readable for both humans and tools. Reported-by: Dan Carpenter <[email protected]> Fixes: 12f727721eee ("IB/uverbs: clean up INIT_UDATA_BUF_OR_NULL usage") Signed-off-by: Arnd Bergmann <[email protected]> Reviewed-by: Leon Romanovsky <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13mtd: Avoid probe failures when mtd->dbg.dfs_dir is invalidBoris Brezillon2-5/+15
Commit e8e3edb95ce6 ("mtd: create per-device and module-scope debugfs entries") tried to make MTD related debugfs stuff consistent across the MTD framework by creating a root <debugfs>/mtd/ directory containing one directory per MTD device. The problem is that, by default, the MTD layer only registers the master device if no partitions are defined for this master. This behavior breaks all drivers that expect mtd->dbg.dfs_dir to be filled correctly after calling mtd_device_register() in order to add their own debugfs entries. The only way we can force all MTD masters to be registered no matter if they expose partitions or not is by enabling the CONFIG_MTD_PARTITIONED_MASTER option. In such situations, there's no other solution but to accept skipping debugfs initialization when dbg.dfs_dir is invalid, and when this happens, inform the user that he should consider enabling CONFIG_MTD_PARTITIONED_MASTER. Fixes: e8e3edb95ce6 ("mtd: create per-device and module-scope debugfs entries") Cc: <[email protected]> Cc: Mario J. Rugiero <[email protected]> Signed-off-by: Boris Brezillon <[email protected]> Reported-by: Richard Weinberger <[email protected]> Signed-off-by: Richard Weinberger <[email protected]>
2017-11-13PCI/ASPM: Account for downstream device's Port Common_Mode_Restore_TimeBjorn Helgaas1-1/+1
Every Port that supports the L1.2 substate advertises its Port Common_Mode_Restore_Time, i.e., the time the Port requires to re-establish common mode when exiting L1.2 (see PCIe r3.1, sec 7.33.2). Per sec 5.5.3.3.1, when exiting L1.2, the Downstream Port (the device at the upstream end of the link) must send TS1 training sequences for at least T(COMMONMODE) after it detects electrical idle exit on the Link. We want this to be long enough for both ends of the Link, so we should set it to the maximum of the Port Common_Mode_Restore_Time for the upstream and downstream components on the Link. Previously we only looked at the Port Common_Mode_Restore_Time of the upstream device, so if the downstream device required more time, we didn't program the upstream device's T(COMMONMODE) correctly. Fixes: f1f0366dd6be ("PCI/ASPM: Calculate and save the L1.2 timing parameters") Signed-off-by: Bjorn Helgaas <[email protected]> Reviewed-by: Vidya Sagar <[email protected]> Acked-by: Rajat Jain <[email protected]> CC: [email protected] # v4.11+
2017-11-13Merge branch 'perf-core-for-linus' of ↵Linus Torvalds1-109/+45
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf updates from Ingo Molnar: "The main changes in this cycle were: Kernel: - kprobes updates: use better W^X patterns for code modifications, improve optprobes, remove jprobes. (Masami Hiramatsu, Kees Cook) - core fixes: event timekeeping (enabled/running times statistics) fixes, perf_event_read() locking fixes and cleanups, etc. (Peter Zijlstra) - Extend x86 Intel free-running PEBS support and support x86 user-register sampling in perf record and perf script. (Andi Kleen) Tooling: - Completely rework the way inline frames are handled. Instead of querying for the inline nodes on-demand in the individual tools, we now create proper callchain nodes for inlined frames. (Milian Wolff) - 'perf trace' updates (Arnaldo Carvalho de Melo) - Implement a way to print formatted output to per-event files in 'perf script' to facilitate generate flamegraphs, elliminating the need to write scripts to do that separation (yuzhoujian, Arnaldo Carvalho de Melo) - Update vendor events JSON metrics for Intel's Broadwell, Broadwell Server, Haswell, Haswell Server, IvyBridge, IvyTown, JakeTown, Sandy Bridge, Skylake, SkyLake Server - and Goldmont Plus V1 (Andi Kleen, Kan Liang) - Multithread the synthesizing of PERF_RECORD_ events for pre-existing threads in 'perf top', speeding up that phase, greatly improving the user experience in systems such as Intel's Knights Mill (Kan Liang) - Introduce the concept of weak groups in 'perf stat': try to set up a group, but if it's not schedulable fallback to not using a group. That gives us the best of both worlds: groups if they work, but still a usable fallback if they don't. E.g: (Andi Kleen) - perf sched timehist enhancements (David Ahern) - ... various other enhancements, updates, cleanups and fixes" * 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (139 commits) kprobes: Don't spam the build log with deprecation warnings arm/kprobes: Remove jprobe test case arm/kprobes: Fix kretprobe test to check correct counter perf srcline: Show correct function name for srcline of callchains perf srcline: Fix memory leak in addr2inlines() perf trace beauty kcmp: Beautify arguments perf trace beauty: Implement pid_fd beautifier tools include uapi: Grab a copy of linux/kcmp.h perf callchain: Fix double mapping al->addr for children without self period perf stat: Make --per-thread update shadow stats to show metrics perf stat: Move the shadow stats scale computation in perf_stat__update_shadow_stats perf tools: Add perf_data_file__write function perf tools: Add struct perf_data_file perf tools: Rename struct perf_data_file to perf_data perf script: Print information about per-event-dump files perf trace beauty prctl: Generate 'option' string table from kernel headers tools include uapi: Grab a copy of linux/prctl.h perf script: Allow creating per-event dump files perf evsel: Restore evsel->priv as a tool private area perf script: Use event_format__fprintf() ...
2017-11-13Merge branches 'vfio/fixes' and 'vfio/platform' into vfio-next-20171113.0Alex Williamson3-0/+123
2017-11-13RDMA/bnxt_re: synchronize poll_cq and req_notify_cq verbsSelvin Xavier1-5/+10
Synchronize poll_cq and req_notify_cq verbs using cq_lock, instead of the lower level qplib->hwq.lock. Signed-off-by: Selvin Xavier <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13RDMA/bnxt_re: Flush CQ notification Work Queue before destroying QPSelvin Xavier3-0/+9
Destroy_qp shall wait for any outstanding CQ notification to be flushed out before proceeding with QP destroy. Flushing the WQ before destroying the QP. Signed-off-by: Selvin Xavier <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13RDMA/bnxt_re: Set QP state in case of response completion errorsSelvin Xavier1-0/+3
Moves the driver QP state to error in case of response completion errors. Handles the scenarios which doesn't generate a terminal CQE. Signed-off-by: Selvin Xavier <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13RDMA/bnxt_re: Add memory barriers when processing CQ/EQ entriesSomnath Kotur2-0/+25
The code determines if the next ring entry is valid before proceeding further to read the rest of the entry. The CPU can re-order and read the rest of the entry first, possibly reading a stale entry, if DMA of a new entry happens right after reading it. Signed-off-by: Somnath Kotur <[email protected]> Signed-off-by: Selvin Xavier <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13IB/hfi1: Handle initial value of 0 for CCTI settingDennis Dalessandro1-1/+5
When the driver is loaded it sets the default CCTI value to be 0. When the FM starts and CCA is disabled the driver sets the max value to 65535 due the driver subtracting 1 from 0 and the fact that the CCTI value is a u16. Special case the subtraction to find the index for a 0 value. Reviewed-by: Mike Marciniszyn <[email protected]> Signed-off-by: Dennis Dalessandro <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13IB/hfi1: Mask upper 16Bits of Extended LID prior to rvt_cq_entryDon Hiatt4-6/+6
Pass only the lower 16Bits of an Extended LIDs to rvt_cq_entry to avoid triggering a WARN_ON_ONCE during conversion there. These upper 16Bits are okay to drop as they are obtained elsewhere. Fixes: 62ede7779904 ("Add OPA extended LID support") Reviewed-by: Ira Weiny <[email protected]> Signed-off-by: Don Hiatt <[email protected]> Signed-off-by: Dennis Dalessandro <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13IB/core: Convert OPA AH to IB for Extended LIDs onlyDon Hiatt1-2/+1
When deciding to convert an OPA AH to IB we were incorrectly including the IB multicast range. At this layer, all Extended LIDs will be larger than IB_LID_PERMISSIVE. Change comparison accordingly. Fixes: d541e45500bd ("IB/core: Convert ah_attr from OPA to IB when copying to user") Reviewed-by: Ira Weiny <[email protected]> Signed-off-by: Don Hiatt <[email protected]> Signed-off-by: Dennis Dalessandro <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13IB/hfi1: Send 'reboot' as planned down remote reasonJan Sokolowski1-3/+3
On host shutdown, driver sends 'SMA_Disabled' as a reason for link down. This is incorrect. Send 'reboot' as a linkdown reason. Signed-off-by: Jan Sokolowski <[email protected]> Reviewed-by: Jakub Byczkowski <[email protected]> Signed-off-by: Dennis Dalessandro <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13IB/hfi1: Prohibit invalid Init to Armed state transitionGrzegorz Morys1-14/+18
It is invalid to change Link state from Init to Armed if IsSmConfigurationStarted bit is not set in Attribute modifier for Set subnet management method in case of PortInfo and PortStateInfo attribute. Set response MAD status field bits accordingly to react correctly in such situations and avoid changing Link state. Reviewed-by: Ira Weiny <[email protected]> Reviewed-by: Michael J. Ruhl <[email protected]> Signed-off-by: Grzegorz Morys <[email protected]> Signed-off-by: Dennis Dalessandro <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
2017-11-13IB/hfi1: Do not allocate PIO send contexts for VNICNiranjana Vishwanathapura6-68/+10
OPA VNIC does not use PIO contexts and instead only uses SDMA engines. Do not allocate PIO contexts for VNIC ports. Reviewed-by: Michael J. Ruhl <[email protected]> Signed-off-by: Niranjana Vishwanathapura <[email protected]> Signed-off-by: Dennis Dalessandro <[email protected]> Signed-off-by: Doug Ledford <[email protected]>
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