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2020-11-23clk: samsung: Prevent potential endless loop in the PLL opsSylwester Nawrocki
The PLL status polling loops in the set_rate callbacks of some PLLs have no timeout detection and may become endless loops when something goes wrong with the PLL. For some PLLs there is already the ktime API based timeout detection, but it will not work in all conditions when .set_rate gets called. In particular, before the clocksource is initialized or when the timekeeping is suspended. This patch adds a common helper with the PLL status bit polling and timeout detection. For conditions where the timekeeping API should not be used a simple readl_relaxed/cpu_relax() busy loop is added with the iterations limit derived from measurements of readl_relaxed() execution time for various PLL types and Exynos SoCs variants. Actual PLL lock time depends on the P divider value, the VCO frequency and a constant PLL type specific LOCK_FACTOR and can be calculated as lock_time = Pdiv * LOCK_FACTOR / VCO_freq For the ktime API use cases a common timeout value of 20 ms is applied for all the PLLs with an assumption that maximum possible value of Pdiv is 64, maximum possible LOCK_FACTOR value is 3000 and minimum VCO frequency is 24 MHz. Link: https://lore.kernel.org/r/20201120155731.26898-1-s.nawrocki@samsung.com Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2020-11-23clk: samsung: Allow compile testing of Exynos, S3C64xx and S5Pv210Krzysztof Kozlowski
So far all Exynos, S3C64xx and S5Pv210 clock units were selected by respective SOC/ARCH Kconfig option. On a kernel built for selected SoCs, this allowed to build only limited set of matching clock drivers. However compile testing was not possible in such case as Makefile object depends on SOC/ARCH option. Add separate Kconfig options for each of them to be able to compile test. Link: https://lore.kernel.org/r/20201119164509.754851-1-krzk@kernel.org Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2020-11-23clk: meson: enable building as modulesKevin Hilman
Make it possible to build all clk drivers as modules, but default remains built-in. No functional changes. Signed-off-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Acked-by: Stephen Boyd <sboyd@kernel.org> Link: https://lore.kernel.org/r/20201118191405.36798-1-khilman@baylibre.com
2020-11-23clk: meson: Kconfig: fix dependency for G12AKevin Hilman
When building only G12A, ensure that VID_PLL_DIV clock driver is selected, otherwise results in this build error: ERROR: modpost: "meson_vid_pll_div_ro_ops" [drivers/clk/meson/g12a.ko] undefined! Fixes: 085a4ea93d54 ("clk: meson: g12a: add peripheral clock controller") Signed-off-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Link: https://lore.kernel.org/r/20201118190930.34352-1-khilman@baylibre.com
2020-11-23clk: meson: axg: add MIPI DSI Host clockNeil Armstrong
This adds the MIPI DSI Host clock, used to measure the signal timings (ENC VSYNC or DW-MIPI-DSI eDPI timings). Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Link: https://lore.kernel.org/r/20200915124553.8056-5-narmstrong@baylibre.com
2020-11-23clk: meson: axg: add Video ClocksNeil Armstrong
Add the clocks entries used in the video clock path, the clock path is doubled to permit having different synchronized clocks for different parts of the video pipeline. The AXG only has a single ENCL CTS clock and even if VCLK exist along VCLK2, only VCLK2 is used since it clocks the MIPI DSI IP directly. All dividers are flagged with CLK_GET_RATE_NOCACHE, and all gates are flagged with CLK_IGNORE_UNUSED since they are currently directly handled by the Meson DRM Driver. Once the DRM Driver is fully migrated to using the Common Clock Framework to handle the video clock tree, the CLK_GET_RATE_NOCACHE and CLK_IGNORE_UNUSED will be dropped. Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Link: https://lore.kernel.org/r/20200915124553.8056-4-narmstrong@baylibre.com
2020-11-23Merge branch 'v5.11/headers' into integJerome Brunet
2020-11-23dt-bindings: clk: axg-clkc: add MIPI DSI Host clock bindingNeil Armstrong
Add the clock ID for the MIPI DSI Host clock. Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Acked-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20200915124553.8056-3-narmstrong@baylibre.com
2020-11-23dt-bindings: clk: axg-clkc: add Video ClocksNeil Armstrong
Add clock IDs for the video clocks. Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Acked-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20200915124553.8056-2-narmstrong@baylibre.com
2020-11-14clk: qcom: dispcc-sm8250: handle MMCX power domainDmitry Baryshkov
On SM8250 MMCX power domain is required to access MMDS_GDSC registers. This power domain is expressed as mmcx-supply regulator property. Use this regulator as MDSS_GDSC supply. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://lore.kernel.org/r/20201023131925.334864-6-dmitry.baryshkov@linaro.org Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-11-14clk: meson: g12: use devm variant to register notifiersJerome Brunet
Until now, nothing was done to unregister the dvfs clock notifiers of the Amlogic g12 SoC family. This is not great but this driver was not really expected to be unloaded. With the ongoing effort to build everything as module for this platform, this needs to be cleanly handled. Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Link: https://lore.kernel.org/r/20201021163847.595189-3-jbrunet@baylibre.com Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-11-14clk: add devm variant of clk_notifier_registerJerome Brunet
Add a memory managed variant of clk_notifier_register() to make life easier on clock consumers using notifiers Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Link: https://lore.kernel.org/r/20201021163847.595189-2-jbrunet@baylibre.com Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-11-14clk: meson: g12: drop use of __clk_lookup()Jerome Brunet
g12 clock controller used __clk_lookup() to get struct clk from a struct clk_hw. This type of hack is no longer required as CCF now provides the necessary functions to get this. Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Link: https://lore.kernel.org/r/20201021162147.563655-4-jbrunet@baylibre.com Tested-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-11-14clk: add api to get clk consumer from clk_hwJerome Brunet
clk_register() is deprecated. Using 'clk' member of struct clk_hw is discouraged. With this constraint, it is difficult for driver to register clocks using the clk_hw API and then use the clock with the consumer API This adds a simple helper, clk_hw_get_clk(), to get a struct clk from a struct clk_hw. Like other clk_get() variant, each call to this helper must be balanced with a call to clk_put(). To make life easier on the consumers, a memory managed version is provided as well. Cc: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Link: https://lore.kernel.org/r/20201021162147.563655-3-jbrunet@baylibre.com Tested-by: Kevin Hilman <khilman@baylibre.com> [sboyd@kernel.org: Fix kernel-doc] Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-11-14clk: avoid devm_clk_release name clashJerome Brunet
In clk-devres.c, devm_clk_release() is used to call clk_put() memory managed clock. In clk.c the same name, in a different scope is used to call clk_unregister(). As it stands, it is not really a problem but it does not readability, especially if we need to call clk_put() on managed clock in clk.c Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Link: https://lore.kernel.org/r/20201021162147.563655-2-jbrunet@baylibre.com Tested-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-11-14clk: remove unneeded dead-store initializationLukas Bulwahn
make clang-analyzer on x86_64 defconfig caught my attention with: drivers/clk/clk.c:423:19: warning: Value stored to 'parent' during its initialization is never read [clang-analyzer-deadcode.DeadStores] struct clk_core *parent = ERR_PTR(-ENOENT); ^ Commit fc0c209c147f ("clk: Allow parents to be specified without string names") introduced clk_core_fill_parent_index() with this unneeded dead-store initialization. So, simply remove this unneeded dead-store initialization to make clang-analyzer happy. As compilers will detect this unneeded assignment and optimize this anyway, the resulting object code is identical before and after this change. No functional change. No change to object code. Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com> Link: https://lore.kernel.org/r/20201106094820.30167-1-lukas.bulwahn@gmail.com Reviewed-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-11-14clk: qcom: camcc-sc7180: Use runtime PM ops instead of clk onesStephen Boyd
Let's call pm_runtime_get() here instead of calling the PM clk APIs directly. This avoids a compilation problem on CONFIG_PM=n where the pm_clk_runtime_{resume,suspend}() functions don't exist and covers the intent, i.e. enable the clks for this device so we can program PLL settings. Reported-by: Randy Dunlap <rdunlap@infradead.org> Reported-by: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Nathan Chancellor <natechancellor@gmail.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Taniya Das <tdas@codeaurora.org> Cc: "Rafael J. Wysocki" <rafael@kernel.org> Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested Fixes: 15d09e830bbc ("clk: qcom: camcc: Add camera clock controller driver for SC7180") Signed-off-by: Stephen Boyd <sboyd@kernel.org> Link: https://lore.kernel.org/r/20201114174408.579047-1-sboyd@kernel.org
2020-11-14clk: qcom: lpass-sc7180: Clean up on error in lpass_sc7180_init()Dan Carpenter
Clean up the first driver if the second driver can't be registered. Fixes: 4ee9fe3e292b ("clk: qcom: lpass-sc7180: Disentangle the two clock devices") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Link: https://lore.kernel.org/r/20201113101419.GC168908@mwanda Reviewed-by: Douglas Anderson <dianders@chromium.org> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-11-04clk: qcom: Add support to LPASS AON_CC Glitch Free Mux clocksSrinivas Kandagatla
LPASS Always ON Clock controller has one GFM mux to control VA and TX clocks to codec macro on LPASS. This patch adds support to this mux. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Link: https://lore.kernel.org/r/20201026120221.18984-5-srinivas.kandagatla@linaro.org Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-11-04clk: qcom: Add support to LPASS AUDIO_CC Glitch Free Mux clocksSrinivas Kandagatla
GFM Muxes in AUDIO_CC control clocks to LPASS WSA and RX Codec Macros. This patch adds support to these muxes. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Link: https://lore.kernel.org/r/20201026120221.18984-4-srinivas.kandagatla@linaro.org Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-11-04dt-bindings: clock: Add support for LPASS Always ON ControllerSrinivas Kandagatla
Always ON Clock controller is a block inside LPASS which controls 1 Glitch free muxes to LPASS codec Macros. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Link: https://lore.kernel.org/r/20201026120221.18984-3-srinivas.kandagatla@linaro.org Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-11-04dt-bindings: clock: Add support for LPASS Audio Clock ControllerSrinivas Kandagatla
Audio Clock controller is a block inside LPASS which controls 2 Glitch free muxes to LPASS codec Macros. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Link: https://lore.kernel.org/r/20201026120221.18984-2-srinivas.kandagatla@linaro.org Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-11-04clk: qcom: lpass-sc7180: Disentangle the two clock devicesDouglas Anderson
The sc7180 lpass clock driver manages two different devices. These two devices were tangled together, using one probe and a lookup to figure out the real probe. I think it's cleaner to really separate the probe for these two devices since they're really different things, just both managed by the same driver. Signed-off-by: Douglas Anderson <dianders@chromium.org> Link: https://lore.kernel.org/r/20201019154857.v5.2.I75c409497d4dea9daefa53ec5f93824081c4ecbe@changeid Reviewed-by: Taniya Das <tdas@codeaurora.org> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-11-04clk: qcom: lpasscc-sc7810: Use devm in probeDouglas Anderson
Let's convert the lpass clock control driver to use devm. This is a few more lines of code, but it will be useful in a later patch which disentangles the two devices handled by this driver. Signed-off-by: Douglas Anderson <dianders@chromium.org> Link: https://lore.kernel.org/r/20201019154857.v5.1.I4567b5e7e17bbb15ef063d447cb83fd43746cb18@changeid Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-11-04clk: qcom: camcc: Add camera clock controller driver for SC7180Taniya Das
Add support for the camera clock controller found on SC7180 based devices. This would allow camera drivers to probe and control their clocks. Signed-off-by: Taniya Das <tdas@codeaurora.org> Link: https://lore.kernel.org/r/1602873815-1677-5-git-send-email-tdas@codeaurora.org [sboyd@kernel.org: Mark hw array static, add UL to big vco numbers] Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-11-04dt-bindings: clock: Add YAML schemas for the QCOM Camera clock bindings.Taniya Das
The Camera Subsystem clock provider have a bunch of generic properties that are needed in a device tree. Add a YAML schemas for those. Add clock ids for camera clocks which are required to bring the camera subsystem out of reset. Signed-off-by: Taniya Das <tdas@codeaurora.org> Link: https://lore.kernel.org/r/1602873815-1677-4-git-send-email-tdas@codeaurora.org Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-11-04clk: qcom: clk-alpha-pll: Add support for controlling Agera PLLsTaniya Das
Add programming sequence support for managing the Agera PLLs. Signed-off-by: Taniya Das <tdas@codeaurora.org> Link: https://lore.kernel.org/r/1602873815-1677-3-git-send-email-tdas@codeaurora.org Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-11-04clk: qcom: clk-alpha-pll: Add support for helper functionsTaniya Das
Introduce clk_alpha_pll_write_config and alpha_pll_check_rate_margin helper functions to be across PLL configure functions and PLL set rate functions. Signed-off-by: Taniya Das <tdas@codeaurora.org> Link: https://lore.kernel.org/r/1602873815-1677-2-git-send-email-tdas@codeaurora.org Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-11-04clk: fix a kernel-doc markupMauro Carvalho Chehab
clk_get_duty_cycle -> clk_get_scaled_duty_cycle Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/b2336f3f3cdfe6e1a2d3a7a056ab7ccc7a81b945.1603469755.git.mchehab+huawei@kernel.org Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-10-26clk: rockchip: Add appropriate arch dependenciesRobin Murphy
There's no point offering support for 32-bit platforms to users configuring a 64-bit kernel - and vice-versa - unless they are explicitly interested in compile-testing. Signed-off-by: Robin Murphy <robin.murphy@arm.com> Link: https://lore.kernel.org/r/72abb0f794b8ed77e274e8ee21c22e0bd3223dfd.1603710913.git.robin.murphy@arm.com Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2020-10-26clk: renesas: rcar-gen3: Remove stp_ck handling for SDHIWolfram Sang
There is no case (and none foreseen) where we would need to disable the SDn clock. So, for simplicity, remove its handling. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Link: https://lore.kernel.org/r/20200922120036.10298-1-wsa+renesas@sang-engineering.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2020-10-25Linux 5.10-rc1v5.10-rc1Linus Torvalds
2020-10-25treewide: Convert macro and uses of __section(foo) to __section("foo")Joe Perches
Use a more generic form for __section that requires quotes to avoid complications with clang and gcc differences. Remove the quote operator # from compiler_attributes.h __section macro. Convert all unquoted __section(foo) uses to quoted __section("foo"). Also convert __attribute__((section("foo"))) uses to __section("foo") even if the __attribute__ has multiple list entry forms. Conversion done using the script at: https://lore.kernel.org/lkml/75393e5ddc272dc7403de74d645e6c6e0f4e70eb.camel@perches.com/2-convert_section.pl Signed-off-by: Joe Perches <joe@perches.com> Reviewed-by: Nick Desaulniers <ndesaulniers@gooogle.com> Reviewed-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-10-25kernel/sys.c: fix prototype of prctl_get_tid_address()Rasmus Villemoes
tid_addr is not a "pointer to (pointer to int in userspace)"; it is in fact a "pointer to (pointer to int in userspace) in userspace". So sparse rightfully complains about passing a kernel pointer to put_user(). Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-10-25mm: remove kzfree() compatibility definitionEric Biggers
Commit 453431a54934 ("mm, treewide: rename kzfree() to kfree_sensitive()") renamed kzfree() to kfree_sensitive(), but it left a compatibility definition of kzfree() to avoid being too disruptive. Since then a few more instances of kzfree() have slipped in. Just get rid of them and remove the compatibility definition once and for all. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-10-25checkpatch: enable GIT_DIR environment use to set git repository locationJoe Perches
If set, use the environment variable GIT_DIR to change the default .git location of the kernel git tree. If GIT_DIR is unset, keep using the current ".git" default. Link: https://lkml.kernel.org/r/c5e23b45562373d632fccb8bc04e563abba4dd1d.camel@perches.com Signed-off-by: Joe Perches <joe@perches.com> Tested-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-10-25Merge tag 'timers-urgent-2020-10-25' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer fixes from Thomas Gleixner: "A time namespace fix and a matching selftest. The futex absolute timeouts which are based on CLOCK_MONOTONIC require time namespace corrected. This was missed in the original time namesapce support" * tag 'timers-urgent-2020-10-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: selftests/timens: Add a test for futex() futex: Adjust absolute futex timeouts with per time namespace offset
2020-10-25Merge tag 'sched-urgent-2020-10-25' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull scheduler fixes from Thomas Gleixner: "Two scheduler fixes: - A trivial build fix for sched_feat() to compile correctly with CONFIG_JUMP_LABEL=n - Replace a zero lenght array with a flexible array" * tag 'sched-urgent-2020-10-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched/features: Fix !CONFIG_JUMP_LABEL case sched: Replace zero-length array with flexible-array
2020-10-25Merge tag 'perf-urgent-2020-10-25' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fix from Thomas Gleixner: "A single fix to compute the field offset of the SNOOPX bit in the data source bitmask of perf events correctly" * tag 'perf-urgent-2020-10-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf: correct SNOOPX field offset
2020-10-25Merge tag 'locking-urgent-2020-10-25' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull locking fix from Thomas Gleixner: "Just a trivial fix for kernel-doc warnings" * tag 'locking-urgent-2020-10-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: locking/seqlocks: Fix kernel-doc warnings
2020-10-25Merge tag 'ntb-5.10' of git://github.com/jonmason/ntbLinus Torvalds
Pull NTB fixes from Jon Mason. * tag 'ntb-5.10' of git://github.com/jonmason/ntb: NTB: Use struct_size() helper in devm_kzalloc() ntb: intel: Fix memleak in intel_ntb_pci_probe NTB: hw: amd: fix an issue about leak system resources
2020-10-25Merge branch 'i2c/for-5.10' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c fix from Wolfram Sang: "Regression fix for rc1 and stable kernels as well" * 'i2c/for-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: core: Restore acpi_walk_dep_device_list() getting called after registering the ACPI i2c devs
2020-10-25Merge tag '5.10-rc-smb3-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6Linus Torvalds
Pull more cifs updates from Steve French: "Add support for stat of various special file types (WSL reparse points for char, block, fifo)" * tag '5.10-rc-smb3-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6: cifs: update internal module version number smb3: add some missing definitions from MS-FSCC smb3: remove two unused variables smb3: add support for stat of WSL reparse points for special file types
2020-10-25Merge branch 'parisc-5.10-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux Pull more parisc updates from Helge Deller: - During this merge window O_NONBLOCK was changed to become 000200000, but we missed that the syscalls timerfd_create(), signalfd4(), eventfd2(), pipe2(), inotify_init1() and userfaultfd() do a strict bit-wise check of the flags parameter. To provide backward compatibility with existing userspace we introduce parisc specific wrappers for those syscalls which filter out the old O_NONBLOCK value and replaces it with the new one. - Prevent HIL bus driver to get stuck when keyboard or mouse isn't attached - Improve error return codes when setting rtc time - Minor documentation fix in pata_ns87415.c * 'parisc-5.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: ata: pata_ns87415.c: Document support on parisc with superio chip parisc: Add wrapper syscalls to fix O_NONBLOCK flag usage hil/parisc: Disable HIL driver when it gets stuck parisc: Improve error return codes when setting rtc time
2020-10-25Merge tag 'for-linus-5.10b-rc1c-tag' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull more xen updates from Juergen Gross: - a series for the Xen pv block drivers adding module parameters for better control of resource usge - a cleanup series for the Xen event driver * tag 'for-linus-5.10b-rc1c-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: Documentation: add xen.fifo_events kernel parameter description xen/events: unmask a fifo event channel only if it was masked xen/events: only register debug interrupt for 2-level events xen/events: make struct irq_info private to events_base.c xen: remove no longer used functions xen-blkfront: Apply changed parameter name to the document xen-blkfront: add a parameter for disabling of persistent grants xen-blkback: add a parameter for disabling of persistent grants
2020-10-25Merge tag 'safesetid-5.10' of git://github.com/micah-morton/linuxLinus Torvalds
Pull SafeSetID updates from Micah Morton: "The changes are mostly contained to within the SafeSetID LSM, with the exception of a few 1-line changes to change some ns_capable() calls to ns_capable_setid() -- causing a flag (CAP_OPT_INSETID) to be set that is examined by SafeSetID code and nothing else in the kernel. The changes to SafeSetID internally allow for setting up GID transition security policies, as already existed for UIDs" * tag 'safesetid-5.10' of git://github.com/micah-morton/linux: LSM: SafeSetID: Fix warnings reported by test bot LSM: SafeSetID: Add GID security policy handling LSM: Signal to SafeSetID when setting group IDs
2020-10-25Merge tag '20201024-v4-5.10' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/wtarreau/prandom Pull random32 updates from Willy Tarreau: "Make prandom_u32() less predictable. This is the cleanup of the latest series of prandom_u32 experimentations consisting in using SipHash instead of Tausworthe to produce the randoms used by the network stack. The changes to the files were kept minimal, and the controversial commit that used to take noise from the fast_pool (f227e3ec3b5c) was reverted. Instead, a dedicated "net_rand_noise" per_cpu variable is fed from various sources of activities (networking, scheduling) to perturb the SipHash state using fast, non-trivially predictable data, instead of keeping it fully deterministic. The goal is essentially to make any occasional memory leakage or brute-force attempt useless. The resulting code was verified to be very slightly faster on x86_64 than what is was with the controversial commit above, though this remains barely above measurement noise. It was also tested on i386 and arm, and build- tested only on arm64" Link: https://lore.kernel.org/netdev/20200808152628.GA27941@SDF.ORG/ * tag '20201024-v4-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/wtarreau/prandom: random32: add a selftest for the prandom32 code random32: add noise from network and scheduling activity random32: make prandom_u32() output unpredictable
2020-10-25i2c: core: Restore acpi_walk_dep_device_list() getting called after ↵Hans de Goede
registering the ACPI i2c devs Commit 21653a4181ff ("i2c: core: Call i2c_acpi_install_space_handler() before i2c_acpi_register_devices()")'s intention was to only move the acpi_install_address_space_handler() call to the point before where the ACPI declared i2c-children of the adapter where instantiated by i2c_acpi_register_devices(). But i2c_acpi_install_space_handler() had a call to acpi_walk_dep_device_list() hidden (that is I missed it) at the end of it, so as an unwanted side-effect now acpi_walk_dep_device_list() was also being called before i2c_acpi_register_devices(). Move the acpi_walk_dep_device_list() call to the end of i2c_acpi_register_devices(), so that it is once again called *after* the i2c_client-s hanging of the adapter have been created. This fixes the Microsoft Surface Go 2 hanging at boot. Fixes: 21653a4181ff ("i2c: core: Call i2c_acpi_install_space_handler() before i2c_acpi_register_devices()") Link: https://bugzilla.kernel.org/show_bug.cgi?id=209627 Reported-by: Rainer Finke <rainer@finke.cc> Reported-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Suggested-by: Maximilian Luz <luzmaximilian@gmail.com> Tested-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Wolfram Sang <wsa@kernel.org>
2020-10-24Merge tag 'block-5.10-2020-10-24' of git://git.kernel.dk/linux-blockLinus Torvalds
Pull block fixes from Jens Axboe: - NVMe pull request from Christoph - rdma error handling fixes (Chao Leng) - fc error handling and reconnect fixes (James Smart) - fix the qid displace when tracing ioctl command (Keith Busch) - don't use BLK_MQ_REQ_NOWAIT for passthru (Chaitanya Kulkarni) - fix MTDT for passthru (Logan Gunthorpe) - blacklist Write Same on more devices (Kai-Heng Feng) - fix an uninitialized work struct (zhenwei pi)" - lightnvm out-of-bounds fix (Colin) - SG allocation leak fix (Doug) - rnbd fixes (Gioh, Guoqing, Jack) - zone error translation fixes (Keith) - kerneldoc markup fix (Mauro) - zram lockdep fix (Peter) - Kill unused io_context members (Yufen) - NUMA memory allocation cleanup (Xianting) - NBD config wakeup fix (Xiubo) * tag 'block-5.10-2020-10-24' of git://git.kernel.dk/linux-block: (27 commits) block: blk-mq: fix a kernel-doc markup nvme-fc: shorten reconnect delay if possible for FC nvme-fc: wait for queues to freeze before calling update_hr_hw_queues nvme-fc: fix error loop in create_hw_io_queues nvme-fc: fix io timeout to abort I/O null_blk: use zone status for max active/open nvmet: don't use BLK_MQ_REQ_NOWAIT for passthru nvmet: cleanup nvmet_passthru_map_sg() nvmet: limit passthru MTDS by BIO_MAX_PAGES nvmet: fix uninitialized work for zero kato nvme-pci: disable Write Zeroes on Sandisk Skyhawk nvme: use queuedata for nvme_req_qid nvme-rdma: fix crash due to incorrect cqe nvme-rdma: fix crash when connect rejected block: remove unused members for io_context blk-mq: remove the calling of local_memory_node() zram: Fix __zram_bvec_{read,write}() locking order skd_main: remove unused including <linux/version.h> sgl_alloc_order: fix memory leak lightnvm: fix out-of-bounds write to array devices->info[] ...
2020-10-24Merge tag 'io_uring-5.10-2020-10-24' of git://git.kernel.dk/linux-blockLinus Torvalds
Pull io_uring fixes from Jens Axboe: - fsize was missed in previous unification of work flags - Few fixes cleaning up the flags unification creds cases (Pavel) - Fix NUMA affinities for completely unplugged/replugged node for io-wq - Two fallout fixes from the set_fs changes. One local to io_uring, one for the splice entry point that io_uring uses. - Linked timeout fixes (Pavel) - Removal of ->flush() ->files work-around that we don't need anymore with referenced files (Pavel) - Various cleanups (Pavel) * tag 'io_uring-5.10-2020-10-24' of git://git.kernel.dk/linux-block: splice: change exported internal do_splice() helper to take kernel offset io_uring: make loop_rw_iter() use original user supplied pointers io_uring: remove req cancel in ->flush() io-wq: re-set NUMA node affinities if CPUs come online io_uring: don't reuse linked_timeout io_uring: unify fsize with def->work_flags io_uring: fix racy REQ_F_LINK_TIMEOUT clearing io_uring: do poll's hash_node init in common code io_uring: inline io_poll_task_handler() io_uring: remove extra ->file check in poll prep io_uring: make cached_cq_overflow non atomic_t io_uring: inline io_fail_links() io_uring: kill ref get/drop in personality init io_uring: flags-based creds init in queue
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