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2018-02-07bcache: add journal statisticTang Junhui3-0/+24
Sometimes, Journal takes up a lot of CPU, we need statistics to know what's the journal is doing. So this patch provide some journal statistics: 1) reclaim: how many times the journal try to reclaim resource, usually the journal bucket or/and the pin are exhausted. 2) flush_write: how many times the journal try to flush btree node to cache device, usually the journal bucket are exhausted. 3) retry_flush_write: how many times the journal retry to flush the next btree node, usually the previous tree node have been flushed by other thread. we show these statistic by sysfs interface. Through these statistics We can totally see the status of journal module when the CPU is too high. Signed-off-by: Tang Junhui <[email protected]> Reviewed-by: Michael Lyle <[email protected]> Signed-off-by: Jens Axboe <[email protected]>
2018-02-07Merge tag 'mips_4.16' of ↵Linus Torvalds5-18/+566
git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/mips Pull MIPS updates from James Hogan: "These are the main MIPS changes for 4.16. Rough overview: (1) Basic support for the Ingenic JZ4770 based GCW Zero open-source handheld video game console (2) Support for the Ranchu board (used by Android emulator) (3) Various cleanups and misc improvements More detailed summary: Fixes: - Fix generic platform's USB_*HCI_BIG_ENDIAN selects (4.9) - Fix vmlinuz default build when ZBOOT selected - Fix clean up of vmlinuz targets - Fix command line duplication (in preparation for Ingenic JZ4770) Miscellaneous: - Allow Processor ID reads to be to be optimised away by the compiler (improves performance when running in guest) - Push ARCH_MIGHT_HAVE_PC_SERIO/PARPORT down to platform level to disable on generic platform with Ranchu board support - Add helpers for assembler macro instructions for older assemblers - Use assembler macro instructions to support VZ, XPA & MSA operations on older assemblers, removing C wrapper duplication - Various improvements to VZ & XPA assembly wrappers - Add drivers/platform/mips/ to MIPS MAINTAINERS entry Minor cleanups: - Misc FPU emulation cleanups (removal of unnecessary include, moving macros to common header, checkpatch and sparse fixes) - Remove duplicate assignment of core in play_dead() - Remove duplication in watchpoint handling - Remove mips_dma_mapping_error() stub - Use NULL instead of 0 in prepare_ftrace_return() - Use proper kernel-doc Return keyword for __compute_return_epc_for_insn() - Remove duplicate semicolon in csum_fold() Platform support: Broadcom: - Enable ZBOOT on BCM47xx Generic platform: - Add Ranchu board support, used by Android emulator - Fix machine compatible string matching for Ranchu - Support GIC in EIC mode Ingenic platforms: - Add DT, defconfig and other support for JZ4770 SoC and GCW Zero - Support dynamnic machine types (i.e. JZ4740 / JZ4770 / JZ4780) - Add Ingenic JZ4770 CGU clocks - General Ingenic clk changes to prepare for JZ4770 SoC support - Use common command line handling code - Add DT vendor prefix to GCW (Game Consoles Worldwide) Loongson: - Add MAINTAINERS entry for Loongson2 and Loongson3 platforms - Drop 32-bit support for Loongson 2E/2F devices - Fix build failures due to multiple use of 'MEM_RESERVED'" * tag 'mips_4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/mips: (53 commits) MIPS: Malta: Sanitize mouse and keyboard configuration. MIPS: Update defconfigs after previous patch. MIPS: Push ARCH_MIGHT_HAVE_PC_SERIO down to platform level MIPS: Push ARCH_MIGHT_HAVE_PC_PARPORT down to platform level MIPS: SMP-CPS: Remove duplicate assignment of core in play_dead MIPS: Generic: Support GIC in EIC mode MIPS: generic: Fix Makefile alignment MIPS: generic: Fix ranchu_of_match[] termination MIPS: generic: Fix machine compatible matching MIPS: Loongson fix name confict - MEM_RESERVED MIPS: bcm47xx: enable ZBOOT support MIPS: Fix trailing semicolon MIPS: Watch: Avoid duplication of bits in mips_read_watch_registers MIPS: Watch: Avoid duplication of bits in mips_install_watch_registers. MIPS: MSA: Update helpers to use new asm macros MIPS: XPA: Standardise readx/writex accessors MIPS: XPA: Allow use of $0 (zero) to MTHC0 MIPS: XPA: Use XPA instructions in assembly MIPS: VZ: Pass GC0 register names in $n format MIPS: VZ: Update helpers to use new asm macros ...
2018-02-07s390: introduce execute-trampolines for branchesMartin Schwidefsky1-0/+2
Add CONFIG_EXPOLINE to enable the use of the new -mindirect-branch= and -mfunction_return= compiler options to create a kernel fortified against the specte v2 attack. With CONFIG_EXPOLINE=y all indirect branches will be issued with an execute type instruction. For z10 or newer the EXRL instruction will be used, for older machines the EX instruction. The typical indirect call basr %r14,%r1 is replaced with a PC relative call to a new thunk brasl %r14,__s390x_indirect_jump_r1 The thunk contains the EXRL/EX instruction to the indirect branch __s390x_indirect_jump_r1: exrl 0,0f j . 0: br %r1 The detour via the execute type instruction has a performance impact. To get rid of the detour the new kernel parameter "nospectre_v2" and "spectre_v2=[on,off,auto]" can be used. If the parameter is specified the kernel and module code will be patched at runtime. Signed-off-by: Martin Schwidefsky <[email protected]>
2018-02-07ath9k_htc: add Altai WA1011N-GUOleksij Rempel1-0/+1
as reported in: https://github.com/qca/open-ath9k-htc-firmware/pull/71#issuecomment-361100070 Signed-off-by: Oleksij Rempel <[email protected]> Signed-off-by: Kalle Valo <[email protected]>
2018-02-07ath10k: fix kernel panic issue during pci probeYu Wang1-2/+10
If device gone during chip reset, ar->normal_mode_fw.board is not initialized, but ath10k_debug_print_hwfw_info() will try to access its member, which will cause 'kernel NULL pointer' issue. This was found using a faulty device (pci link went down sometimes) in a random insmod/rmmod/other-op test. To fix it, check ar->normal_mode_fw.board before accessing the member. pci 0000:02:00.0: BAR 0: assigned [mem 0xf7400000-0xf75fffff 64bit] ath10k_pci 0000:02:00.0: enabling device (0000 -> 0002) ath10k_pci 0000:02:00.0: pci irq msi oper_irq_mode 2 irq_mode 0 reset_mode 0 ath10k_pci 0000:02:00.0: failed to read device register, device is gone ath10k_pci 0000:02:00.0: failed to wait for target init: -5 ath10k_pci 0000:02:00.0: failed to warm reset: -5 ath10k_pci 0000:02:00.0: firmware crashed during chip reset ath10k_pci 0000:02:00.0: firmware crashed! (uuid 5d018951-b8e1-404a-8fde-923078b4423a) ath10k_pci 0000:02:00.0: (null) target 0x00000000 chip_id 0x00340aff sub 0000:0000 ath10k_pci 0000:02:00.0: kconfig debug 1 debugfs 1 tracing 1 dfs 1 testmode 1 ath10k_pci 0000:02:00.0: firmware ver api 0 features crc32 00000000 ... BUG: unable to handle kernel NULL pointer dereference at 00000004 ... Call Trace: [<fb4e7882>] ath10k_print_driver_info+0x12/0x20 [ath10k_core] [<fb62b7dd>] ath10k_pci_fw_crashed_dump+0x6d/0x4d0 [ath10k_pci] [<fb629f07>] ? ath10k_pci_sleep.part.19+0x57/0xc0 [ath10k_pci] [<fb62c8ee>] ath10k_pci_hif_power_up+0x14e/0x1b0 [ath10k_pci] [<c10477fb>] ? do_page_fault+0xb/0x10 [<fb4eb934>] ath10k_core_register_work+0x24/0x840 [ath10k_core] [<c18a00d8>] ? netlbl_unlhsh_remove+0x178/0x410 [<c10477f0>] ? __do_page_fault+0x480/0x480 [<c1068e44>] process_one_work+0x114/0x3e0 [<c1069d07>] worker_thread+0x37/0x4a0 [<c106e294>] kthread+0xa4/0xc0 [<c1069cd0>] ? create_worker+0x180/0x180 [<c106e1f0>] ? kthread_park+0x50/0x50 [<c18ab4f7>] ret_from_fork+0x1b/0x28 Code: 78 80 b8 50 09 00 00 00 75 5d 8d 75 94 c7 44 24 08 aa d7 52 fb c7 44 24 04 64 00 00 00 89 34 24 e8 82 52 e2 c5 8b 83 dc 08 00 00 <8b> 50 04 8b 08 31 c0 e8 20 57 e3 c5 89 44 24 10 8b 83 58 09 00 EIP: [<fb4e7754>]- ath10k_debug_print_board_info+0x34/0xb0 [ath10k_core] SS:ESP 0068:f4921d90 CR2: 0000000000000004 Signed-off-by: Yu Wang <[email protected]> Signed-off-by: Kalle Valo <[email protected]>
2018-02-07ath9k: Fix get channel default noise floorWojciech Dubowik1-1/+1
Commit 8da58553cc63 ("ath9k: Use calibrated noise floor value when available") introduced regression in ath9k_hw_getchan_noise where per chain nominal noise floor has been taken instead default for channel. Revert to original default channel noise floor. Fixes: 8da58553cc63 ("ath9k: Use calibrated noise floor value when available") Reported-by: Sebastian Gottschall <[email protected]> Signed-off-by: Wojciech Dubowik <[email protected]> Signed-off-by: Kalle Valo <[email protected]>
2018-02-07ath10k: add support for Ubiquiti rebranded QCA988X v2Tobias Schramm3-0/+36
Some modern Ubiquiti devices contain a rebranded QCA988X rev2 with a custom Ubiquiti vendor and device id. This patch adds support for those devices, treating them as a QCA988X v2. Signed-off-by: Tobias Schramm <[email protected]> [[email protected]: rebase, add missing fields in hw_params, fix a long line in pci.c:61] Signed-off-by: Kalle Valo <[email protected]>
2018-02-07ath10k: correct the length of DRAM dump for QCA6174 hw3.x/QCA9377 hw1.1Yu Wang1-1/+2
The length of DRAM dump for QCA6174 hw3.0/hw3.2 and QCA9377 hw1.1 are less than the actual value, some coredump contents are missed. To fix it, change the length from 0x90000 to 0xa8000. Fixes: 703f261dd77f ("ath10k: add memory dump support for QCA6174/QCA9377") Signed-off-by: Yu Wang <[email protected]> Signed-off-by: Kalle Valo <[email protected]>
2018-02-07rtlwifi: rtl8821ae: Fix connection lost problem correctlyLarry Finger2-2/+4
There has been a coding error in rtl8821ae since it was first introduced, namely that an 8-bit register was read using a 16-bit read in _rtl8821ae_dbi_read(). This error was fixed with commit 40b368af4b75 ("rtlwifi: Fix alignment issues"); however, this change led to instability in the connection. To restore stability, this change was reverted in commit b8b8b16352cd ("rtlwifi: rtl8821ae: Fix connection lost problem"). Unfortunately, the unaligned access causes machine checks in ARM architecture, and we were finally forced to find the actual cause of the problem on x86 platforms. Following a suggestion from Pkshih <[email protected]>, it was found that increasing the ASPM L1 latency from 0 to 7 fixed the instability. This parameter was varied to see if a smaller value would work; however, it appears that 7 is the safest value. A new symbol is defined for this quantity, thus it can be easily changed if necessary. Fixes: b8b8b16352cd ("rtlwifi: rtl8821ae: Fix connection lost problem") Cc: Stable <[email protected]> # 4.14+ Fix-suggested-by: Pkshih <[email protected]> Signed-off-by: Larry Finger <[email protected]> Tested-by: James Cameron <[email protected]> # x86_64 OLPC NL3 Signed-off-by: Kalle Valo <[email protected]>
2018-02-07PM / domains: Fix up domain-idle-states OF parsingUlf Hansson1-31/+45
Commit b539cc82d493 (PM / Domains: Ignore domain-idle-states that are not compatible), made it possible to ignore non-compatible domain-idle-states OF nodes. However, in case that happens while doing the OF parsing, the number of elements in the allocated array would exceed the numbers actually needed, thus wasting memory. Fix this by pre-iterating the genpd OF node and counting the number of compatible domain-idle-states nodes, before doing the allocation. While doing this, it makes sense to rework the code a bit to avoid open coding, of parts responsible for the OF node iteration. Let's also take the opportunity to clarify the function header for of_genpd_parse_idle_states(), about what is being returned in case of errors. Fixes: b539cc82d493 (PM / Domains: Ignore domain-idle-states that are not compatible) Signed-off-by: Ulf Hansson <[email protected]> Reviewed-by: Lina Iyer <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]>
2018-02-07cpufreq: scpi: fix static checker warning cdev isn't an ERR_PTRSudeep Holla1-4/+1
Commit 343a8d17fa8d (cpufreq: scpi: remove arm_big_little dependency) leads to the following static checker warning: drivers/cpufreq/scpi-cpufreq.c:203 scpi_cpufreq_ready() warn: 'cdev' isn't an ERR_PTR of_cpufreq_cooling_register() returns NULL on error. This patch removes the incorrect IS_ERR check on the returned pointer. Fixes: 343a8d17fa8d (cpufreq: scpi: remove arm_big_little dependency) Reported-by: Dan Carpenter <[email protected]> Signed-off-by: Sudeep Holla <[email protected]> Acked-by: Viresh Kumar <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]>
2018-02-07platform/x86: samsung-laptop: Re-use DEFINE_SHOW_ATTRIBUTE() macroAndy Shevchenko1-15/+3
...instead of open coding file operations followed by custom ->open() callbacks per each attribute. Signed-off-by: Andy Shevchenko <[email protected]>
2018-02-07platform/x86: ideapad-laptop: Re-use DEFINE_SHOW_ATTRIBUTE() macroAndy Shevchenko1-26/+2
...instead of open coding file operations followed by custom ->open() callbacks per each attribute. Signed-off-by: Andy Shevchenko <[email protected]>
2018-02-07platform/x86: dell-laptop: Re-use DEFINE_SHOW_ATTRIBUTE() macroAndy Shevchenko1-13/+1
...instead of open coding file operations followed by custom ->open() callbacks per each attribute. Signed-off-by: Andy Shevchenko <[email protected]>
2018-02-07seq_file: Introduce DEFINE_SHOW_ATTRIBUTE() helper macroAndy Shevchenko2-28/+0
The DEFINE_SHOW_ATTRIBUTE() helper macro would be useful for current users, which are many of them, and for new comers to decrease code duplication. Acked-by: Lee Jones <[email protected]> Acked-by: Darren Hart (VMware) <[email protected]> Signed-off-by: Andy Shevchenko <[email protected]>
2018-02-07cpufreq: remove at32ap-cpufreqCorentin LABBE3-138/+0
Since AVR32 arch was removed, at32ap-cpufreq is useless. Remove this driver. Signed-off-by: Corentin Labbe <[email protected]> Acked-by: Viresh Kumar <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]>
2018-02-07ACPI: SPCR: Make SPCR available to x86Prarit Bhargava3-25/+26
SPCR is currently only enabled or ARM64 and x86 can use SPCR to setup an early console. General fixes include updating Documentation & Kconfig (for x86), updating comments, and changing parse_spcr() to acpi_parse_spcr(), and earlycon_init_is_deferred to earlycon_acpi_spcr_enable to be more descriptive. On x86, many systems have a valid SPCR table but the table version is not 2 so the table version check must be a warning. On ARM64 when the kernel parameter earlycon is used both the early console and console are enabled. On x86, only the earlycon should be enabled by by default. Modify acpi_parse_spcr() to allow options for initializing the early console and console separately. Signed-off-by: Prarit Bhargava <[email protected]> Acked-by: Ingo Molnar <[email protected]> Reviewed-by: Mark Salter <[email protected]> Tested-by: Mark Salter <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]>
2018-02-07cpufreq: AMD: Ignore the check for ProcFeedback in ST/CZAkshu Agrawal1-2/+9
In ST/CZ CPUID 8000_0007_EDX[11, ProcFeedbackInterface] is 0, but the mechanism is still available and can be used. Signed-off-by: Akshu Agrawal <[email protected]> Acked-by: Viresh Kumar <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]>
2018-02-07ACPI / CPPC: Use 64-bit arithmetic instead of 32-bitGustavo A. R. Silva1-1/+1
Add suffix ULL to constant 500 in order to give the compiler complete information about the proper arithmetic to use. Notice that this constant is used in a context that expects an expression of type u64 (64 bits, unsigned). The expression NUM_RETRIES * cppc_ss->latency at line 578, which at preprocessing time translates to 500 * cppc_ss->latency is currently being evaluated using 32-bit arithmetic. Signed-off-by: Gustavo A. R. Silva <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]>
2018-02-07ACPI / tables: Add IORT to injectable table listShunyong Yang1-1/+2
Loading IORT table from initrd can be used to fix severe firmware IORT defects temporarily before platform/BIOS vendor releases an upgraded BIOS binary. Moreover, it is very powerful to debug SMMU node/device probe, MSI allocation, stream id translation and IORT table from firmware. It is also very useful to enable SMMU and devices behind SMMU before firmware is ready. This patch adds ACPI_SIG_IORT to the table, which enables IORT from initrd to override which from firmware. Signed-off-by: Yang Shunyong <[email protected]> Acked-by: Hanjun Guo <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]>
2018-02-07drm/pl111: Support multiple endpoints on the CLCDLinus Walleij1-6/+56
The Versatile PL110 implementations use multiple endpoints: from the PL111 port, the lines are routed through a PLD, and from there forked so the same lines go to a VGA DAC and an external TFT panel connector. This is discrete wireing so there is no way to turn of one output, i.e. this is really two endpoints, not two ports. We model this with multiple endpoints, so we need to loop over the available endpoints, check for panel or bridge on each and accumulate the result before continuing. The code already will give the panel preference over the bridge, if present, so the output will be sent to the panel if both a panel and a bridge is present on two endpoints of the same port. If they all return -EPROBE_DEFER we return -EPROBE_DEFER as well. If just one endpoint is present on the port, the behaviour is the same as before. Reviewed-by: Eric Anholt <[email protected]> Signed-off-by: Linus Walleij <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2018-02-07drm/pl111: Support variants with broken VBLANKLinus Walleij4-10/+18
The early Integrator CLCD synthesized in the Integrator CP and IM-PD1 FPGAs are broken: their vertical and next base interrupts are not functional. Support these variants by simply disabling the use of the vblank interrupt on these variants. Reviewed-by: Eric Anholt <[email protected]> Signed-off-by: Linus Walleij <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2018-02-07drm/pl111: Support variants with broken clock dividerLinus Walleij3-0/+12
The early Integrator CLCD synthesized in the Integrator CP and IM-PD1 FPGAs are broken: their clock dividers do not work properly. Support disabling the clock divider and drive the clock directly from the parent under these circumstances. Reviewed-by: Eric Anholt <[email protected]> Signed-off-by: Linus Walleij <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2018-02-07drm/pl111: Handle the Versatile RGB/BGR565 modeLinus Walleij1-2/+13
The ARM Versatile series can do RGB/BGR565 with an external "PLD" (Programmable Logical Device). However the CLCD does not have control bits for this, so it needs to be set into the ordinary 16BPP mode, then the RGB/BGR565 handling of the pixel data is handled by configuring the PLD through the external register. Reviewed-by: Eric Anholt <[email protected]> Signed-off-by: Linus Walleij <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2018-02-07drm/pl111: Properly detect the ARM PL110 variantsLinus Walleij3-46/+78
With a bit of refactoring we can contain the variant data for the strange PL110 versions that is feature-incomplete PL110 for the ARM Integrator/CP and somewhere inbetween PL110 and PL111 for the ARM Versatile AB and Versatile PB. We also accomodate for the custom duct-taped RGB565/BGR565 support in the Versatile variant. Reviewed-by: Eric Anholt <[email protected]> Signed-off-by: Linus Walleij <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2018-02-07drm/panel: Add support for ARM Versatile panelsLinus Walleij3-0/+388
The ARM reference designs "Versatile AB" and "Versatile PB" contain panel connectors with autodetection of the connected panel type. This adds a small driver utilizing the MFD syscon look-up to read the autodetection register and set up the corresponding panel appropriately. In the source file there is a bit of elaboration of the panel types and interfaces on these boards. This was tested with the PL111 DRM driver on the ARM Versatile AB with the IB2 daughterboard. Reviewed-by: Eric Anholt <[email protected]> Signed-off-by: Linus Walleij <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2018-02-07drm/i915: Update DRIVER_DATE to 20180207Joonas Lahtinen1-2/+2
Signed-off-by: Joonas Lahtinen <[email protected]>
2018-02-06Merge branch 'akpm' (patches from Andrew)Linus Torvalds4-97/+76
Merge misc updates from Andrew Morton: - kasan updates - procfs - lib/bitmap updates - other lib/ updates - checkpatch tweaks - rapidio - ubsan - pipe fixes and cleanups - lots of other misc bits * emailed patches from Andrew Morton <[email protected]>: (114 commits) Documentation/sysctl/user.txt: fix typo MAINTAINERS: update ARM/QUALCOMM SUPPORT patterns MAINTAINERS: update various PALM patterns MAINTAINERS: update "ARM/OXNAS platform support" patterns MAINTAINERS: update Cortina/Gemini patterns MAINTAINERS: remove ARM/CLKDEV SUPPORT file pattern MAINTAINERS: remove ANDROID ION pattern mm: docs: add blank lines to silence sphinx "Unexpected indentation" errors mm: docs: fix parameter names mismatch mm: docs: fixup punctuation pipe: read buffer limits atomically pipe: simplify round_pipe_size() pipe: reject F_SETPIPE_SZ with size over UINT_MAX pipe: fix off-by-one error when checking buffer limits pipe: actually allow root to exceed the pipe buffer limits pipe, sysctl: remove pipe_proc_fn() pipe, sysctl: drop 'min' parameter from pipe-max-size converter kasan: rework Kconfig settings crash_dump: is_kdump_kernel can be boolean kernel/mutex: mutex_is_locked can be boolean ...
2018-02-06Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds13-113/+137
Pull networking fixes from David Miller: 1) Fix error path in netdevsim, from Jakub Kicinski. 2) Default values listed in tcp_wmem and tcp_rmem documentation were inaccurate, from Tonghao Zhang. 3) Fix route leaks in SCTP, both for ipv4 and ipv6. From Alexey Kodanev and Tommi Rantala. 4) Fix "MASK < Y" meant to be "MASK << Y" in xgbe driver, from Wolfram Sang. 5) Use after free in u32_destroy_key(), from Paolo Abeni. 6) Fix two TX issues in be2net driver, from Suredh Reddy. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (25 commits) be2net: Handle transmit completion errors in Lancer be2net: Fix HW stall issue in Lancer RDS: IB: Fix null pointer issue nfp: fix kdoc warnings on nested structures sample/bpf: fix erspan metadata net: erspan: fix erspan config overwrite net: erspan: fix metadata extraction cls_u32: fix use after free in u32_destroy_key() net: amd-xgbe: fix comparison to bitshift when dealing with a mask net: phy: Handle not having GPIO enabled in the kernel ibmvnic: fix empty firmware version and errors cleanup sctp: fix dst refcnt leak in sctp_v4_get_dst sctp: fix dst refcnt leak in sctp_v6_get_dst() dwc-xlgmac: remove Jie Deng as co-maintainer doc: Change the min default value of tcp_wmem/tcp_rmem. samples/bpf: use bpf_set_link_xdp_fd libbpf: add missing SPDX-License-Identifier libbpf: add error reporting in XDP libbpf: add function to setup XDP tools: add netlink.h and if_link.h in tools uapi ...
2018-02-06pps: parport: use timespec64 instead of timespecArnd Bergmann1-20/+20
getnstimeofday() is deprecated, so I'm converting this to use ktime_get_real_ts64() as a safe replacement. I considered using ktime_get_real() instead, but since the algorithm here depends on the exact timing, I decided to introduce fewer changes and leave the code that determines the nanoseconds since the last seconds wrap untouched. It's not entirely clear to me whether we should also change the time base to CLOCK_BOOTTIME or CLOCK_TAI. With boottime, we would be independent of changes due to settimeofday() and only see the speed adjustment from the upstream clock source, with the downside of having the signal be at an arbirary offset from the start of the UTC second signal. With CLOCK_TAI, we would use the same offset from the UTC second as before and still suffer from settimeofday() adjustments, but would be less confused during leap seconds. Both boottime and tai only offer usable (i.e. avoiding ktime_t to timespec64 conversion) interfaces for ktime_t though, so either way, changing it wouldn't take significantly more work. CLOCK_MONOTONIC could be used with ktime_get_ts64(), but would lose synchronization across a suspend/resume cycle, which seems worse. Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnd Bergmann <[email protected]> Acked-by: Rodolfo Giometti <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2018-02-06drivers/rapidio/devices/tsi721_dma.c: adjust six checks for null pointersMarkus Elfring1-7/+5
checkpatch pointed out the following: Comparison to NULL could be written !... Thus fix the affected source code places. Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Markus Elfring <[email protected]> Acked-by: Alexandre Bounine <[email protected]> Cc: Matt Porter <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2018-02-06drivers/rapidio/devices/tsi721_dma.c: delete an unnecessary variable ↵Markus Elfring1-1/+1
initialisation in tsi721_alloc_chan_resources() The local variable "desc" will eventually be set to an appropriate pointer a bit later. Thus omit the explicit initialisation at the beginning. Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Markus Elfring <[email protected]> Acked-by: Alexandre Bounine <[email protected]> Cc: Matt Porter <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2018-02-06drivers/rapidio/devices/tsi721_dma.c: delete an error message for a failed ↵Markus Elfring1-3/+0
memory allocation in tsi721_alloc_chan_resources() Omit an extra message for a memory allocation failure in this function. This issue was detected by using the Coccinelle software. Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Markus Elfring <[email protected]> Acked-by: Alexandre Bounine <[email protected]> Cc: Matt Porter <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2018-02-06rapidio: move 12 EXPORT_SYMBOL_GPL() calls to function implementationsMarkus Elfring1-13/+12
checkpatch pointed information out like the following. WARNING: EXPORT_SYMBOL(foo); should immediately follow its function/variable Thus fix the affected source code places. Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Markus Elfring <[email protected]> Acked-by: Alexandre Bounine <[email protected]> Cc: Matt Porter <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2018-02-06rapidio: return an error code only as a constant in two functionsMarkus Elfring1-15/+6
* Return an error code without storing it in an intermediate variable. * Delete the label "out" and local variable "rc" which became unnecessary with this refactoring. Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Markus Elfring <[email protected]> Acked-by: Alexandre Bounine <[email protected]> Cc: Matt Porter <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2018-02-06rapidio: delete an unnecessary variable initialisation in three functionsMarkus Elfring1-3/+3
The local variable "rc" will be set to an appropriate value a bit later. Thus omit the explicit initialisation at the beginning. Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Markus Elfring <[email protected]> Acked-by: Alexandre Bounine <[email protected]> Cc: Matt Porter <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2018-02-06rapidio: improve a size determination in five functionsMarkus Elfring1-10/+5
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. Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Markus Elfring <[email protected]> Acked-by: Alexandre Bounine <[email protected]> Cc: Matt Porter <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2018-02-06rapidio: adjust five function calls together with a variable assignmentMarkus Elfring1-12/+14
checkpatch pointed information out like the following. ERROR: do not use assignment in if condition Thus fix the affected source code places. Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Markus Elfring <[email protected]> Acked-by: Alexandre Bounine <[email protected]> Cc: Matt Porter <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2018-02-06rapidio: adjust 12 checks for null pointersMarkus Elfring1-9/+9
checkpatch pointed information out like the following. Comparison to NULL could be written ... Thus fix the affected source code places. Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Markus Elfring <[email protected]> Acked-by: Alexandre Bounine <[email protected]> Cc: Matt Porter <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2018-02-06rapidio: delete an error message for a failed memory allocation in ↵Markus Elfring1-1/+0
rio_init_mports() Patch series "RapidIO: Adjustments for some function implementations". This patch (of 7): Omit an extra message for a memory allocation failure in this function. This issue was detected by using the Coccinelle software. Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Markus Elfring <[email protected]> Acked-by: Alexandre Bounine <[email protected]> Cc: Matt Porter <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2018-02-06bitmap: replace bitmap_{from,to}_u32arrayYury Norov1-4/+2
with bitmap_{from,to}_arr32 over the kernel. Additionally to it: * __check_eq_bitmap() now takes single nbits argument. * __check_eq_u32_array is not used in new test but may be used in future. So I don't remove it here, but annotate as __used. Tested on arm64 and 32-bit BE mips. [[email protected]: perf: arm_dsu_pmu: convert to bitmap_from_arr32] Link: http://lkml.kernel.org/r/[email protected] [[email protected]: fix net/core/ethtool.c] Link: http://lkml.kernel.org/r/20180205071747.4ekxtsbgxkj5b2fz@yury-thinkpad Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Yury Norov <[email protected]> Signed-off-by: Arnd Bergmann <[email protected]> Cc: Ben Hutchings <[email protected]> Cc: David Decotigny <[email protected]>, Cc: David S. Miller <[email protected]>, Cc: Geert Uytterhoeven <[email protected]> Cc: Matthew Wilcox <[email protected]> Cc: Rasmus Villemoes <[email protected]> Cc: Heiner Kallweit <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2018-02-06Merge tag 'platform-drivers-x86-v4.16-1' of ↵Linus Torvalds30-980/+2132
git://git.infradead.org/linux-platform-drivers-x86 Pull x86 platform-driver updates from Darren Hart: "New model support added for Dell, Ideapad, Acer, Asus, Thinkpad, and GPD laptops. Improvements to the common intel-vbtn driver, including tablet mode, rotate, and front button support. Intel CPU support added for Cannonlake and platform support for Dollar Cove power button. Overhaul of the mellanox platform driver, creating a new platform/mellanox directory for the newly multi-architecture regmap interface. Significant Intel PMC update with CannonLake support, Coffeelake update, CPUID enumeration, module support, new read64 API, refactoring and cleanups. Revert the apple-gmux iGP IO lock, addressing reported issues with non-binary drivers, leaving Nvidia binary driver users to comment out conflicting code. Miscellaneous fixes and cleanups" * tag 'platform-drivers-x86-v4.16-1' of git://git.infradead.org/linux-platform-drivers-x86: (81 commits) platform/x86: mlx-platform: Fix an ERR_PTR vs NULL issue platform/x86: intel_pmc_core: Special case for Coffeelake platform/x86: intel_pmc_core: Add CannonLake PCH support x86/cpu: Add Cannonlake to Intel family platform/x86: intel_pmc_core: Read base address from LPIT ACPI / LPIT: Export lpit_read_residency_count_address() platform/x86: intel-vbtn: Replace License by SDPX identifier platform/x86: intel-vbtn: Remove redundant inclusions platform/x86: intel-vbtn: Support tablet mode switch platform/x86: dell-laptop: Allocate buffer on heap rather than globally platform/x86: intel_pmc_core: Remove unused header file platform/x86: mlx-platform: Add hotplug device unregister to error path platform/x86: mlx-platform: fix module aliases platform/mellanox: mlxreg-hotplug: Add check for negative adapter number platform/x86: mlx-platform: Add IO access verification callbacks platform/x86: mlx-platform: Document pdev_hotplug field platform/x86: mlx-platform: Allow compilation for 32 bit arch platform/mellanox: mlxreg-hotplug: Enable building for ARM platform/mellanox: mlxreg-hotplug: Modify to use a regmap interface platform/mellanox: Group create/destroy with attribute functions ...
2018-02-06Merge branch 'next' of ↵Linus Torvalds11-198/+286
git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux Pull thermal management updates from Zhang Rui: - fix a race condition issue in power allocator governor (Yi Zeng). - add support for AP806 and CP110 in armada thermal driver, together with several improvements (Baruch Siach, Miquel Raynal) - add support for r8z7743 in rcar thermal driver (Biju Das) - convert thermal core to use new hwmon API to avoid warning (Fabio Estevam) - small fixes and cleanups in thermal core and x86_pkg_thermal, int3400_thermal, hisi_thermal, mtk_thermal and imx_thermal drivers (Pravin Shedge, Geert Uytterhoeven, Alexey Khoroshilov, Brian Bian, Matthias Brugger, Nicolin Chen, Uwe Kleine-König) * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: (25 commits) thermal: thermal_hwmon: Convert to hwmon_device_register_with_info() thermal/x86 pkg temp: Remove debugfs_create_u32() casts thermal: int3400_thermal: fix error handling in int3400_thermal_probe() thermal/drivers/hisi: Remove bogus const from function return type thermal: armada: Give meaningful names to the thermal zones thermal: armada: Wait sensors validity before exiting the init callback thermal: armada: Change sensors trim default value thermal: armada: Update Kconfig and module description thermal: armada: Add support for Armada CP110 thermal: armada: Add support for Armada AP806 thermal: armada: Use real status register name thermal: armada: Clarify control registers accesses thermal: armada: Simplify the check of the validity bit thermal: armada: Use msleep for long delays dt-bindings: thermal: Describe Armada AP806 and CP110 dt-bindings: thermal: rcar: Add device tree support for r8a7743 thermal: mtk: Cleanup unused defines thermal: imx: update to new formula according to NXP AN5215 thermal: imx: use consistent style to write temperatures thermal: imx: improve comments describing algorithm for temp calculation ...
2018-02-06firmware/psci: Expose SMCCC version through psci_opsMarc Zyngier1-0/+27
Since PSCI 1.0 allows the SMCCC version to be (indirectly) probed, let's do that at boot time, and expose the version of the calling convention as part of the psci_ops structure. Acked-by: Lorenzo Pieralisi <[email protected]> Reviewed-by: Robin Murphy <[email protected]> Tested-by: Ard Biesheuvel <[email protected]> Signed-off-by: Marc Zyngier <[email protected]> Signed-off-by: Catalin Marinas <[email protected]>
2018-02-06firmware/psci: Expose PSCI conduitMarc Zyngier1-5/+23
In order to call into the firmware to apply workarounds, it is useful to find out whether we're using HVC or SMC. Let's expose this through the psci_ops. Acked-by: Lorenzo Pieralisi <[email protected]> Reviewed-by: Robin Murphy <[email protected]> Tested-by: Ard Biesheuvel <[email protected]> Signed-off-by: Marc Zyngier <[email protected]> Signed-off-by: Catalin Marinas <[email protected]>
2018-02-06media: videobuf2: fix up for "media: annotate ->poll() instances"Stephen Rothwell1-2/+2
Signed-off-by: Stephen Rothwell <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2018-02-06drm/i915/cnp: Properly handle VBT ddc pin out of bounds.Rodrigo Vivi1-2/+3
If the table result is out of bounds on the array map there is something really wrong with VBT pin so we don't return that vbt_pin, but only return 0 instead. This basically reverts commit 'a8e6f3888b05 ("drm/i915/cnp: Ignore VBT request for know invalid DDC pin.")' Also this properly fixes commit 9c3b2689d01f ("drm/i915/cnl: Map VBT DDC Pin to BSpec DDC Pin.") v2: Do in a way that we don't break other platforms. (Jani) v3: Keep debug message (Jani) v4: Don't mess with 0 mapping was noticed by Jani and addressed with a simple solution suggested by Lucas that makes this even simpler. Fixes: a8e6f3888b05 ("drm/i915/cnp: Ignore VBT request for know invalid DDC pin.") Fixes: 9c3b2689d01f ("drm/i915/cnl: Map VBT DDC Pin to BSpec DDC Pin.") Cc: Radhakrishna Sripada <[email protected]> Cc: Jani Nikula <[email protected]> Cc: Kai Heng Feng <[email protected]> Cc: Lucas De Marchi <[email protected]> Suggested-by: Lucas De Marchi <[email protected]> Signed-off-by: Rodrigo Vivi <[email protected]> Reviewed-by: Lucas De Marchi <[email protected]> Tested-by: Kai-Heng Feng <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] (cherry picked from commit 3393ce1ed8fc43dbdb83952facaf04e644ca1d54) Signed-off-by: Rodrigo Vivi <[email protected]>
2018-02-06drm/i915/cnp: Ignore VBT request for know invalid DDC pin.Rodrigo Vivi1-3/+8
Let's ignore VBT request if the pin is clearly wrong. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=104139 Cc: Kai Heng Feng <[email protected]> Signed-off-by: Rodrigo Vivi <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] Reviewed-by: Radhakrishna Sripada <[email protected]> (cherry picked from commit a8e6f3888b05c1e7b685800a3371ce050720368f) Signed-off-by: Rodrigo Vivi <[email protected]>
2018-02-06drm/i915/cmdparser: Do not check past the cmd length.Michal Srb1-0/+6
The command MEDIA_VFE_STATE checks bits at offset +2 dwords. However, it is possible to have MEDIA_VFE_STATE command with length = 0 + LENGTH_BIAS = 2. In that case check_cmd will read bits from the following command, or even past the end of the buffer. If the offset ends up outside of the command length, reject the command. Fixes: 351e3db2b363 ("drm/i915: Implement command buffer parsing logic") Signed-off-by: Michal Srb <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] Reviewed-by: Chris Wilson <[email protected]> Signed-off-by: Chris Wilson <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] (cherry picked from commit 3aec7f871c65eb5f76b4125fda432593c834a6f2) Signed-off-by: Rodrigo Vivi <[email protected]>
2018-02-06drm/i915/cmdparser: Check reg_table_count before derefencing.Michal Srb1-2/+2
The find_reg function was assuming that there is always at least one table in reg_tables. It is not always true. In case of VCS or VECS, the reg_tables is NULL and reg_table_count is 0, implying that no register-accessing commands are allowed. However, the command tables include commands such as MI_STORE_REGISTER_MEM. When trying to check such command, the find_reg would dereference NULL pointer. Now it will just return NULL meaning that the register was not found and the command will be rejected. Fixes: 76ff480ec963 ("drm/i915/cmdparser: Use binary search for faster register lookup") Signed-off-by: Michal Srb <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] Cc: Chris Wilson <[email protected]> Cc: Matthew Auld <[email protected]> Reviewed-by: Chris Wilson <[email protected]> Signed-off-by: Chris Wilson <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] register lookup") (cherry picked from commit 2f265fad9756a40c09e3f4dcc62d5d7fa73a9fb2) Signed-off-by: Rodrigo Vivi <[email protected]>