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2023-10-26Merge branches 'pm-sleep', 'powercap' and 'pm-tools'Rafael J. Wysocki5-32/+45
Merge updates related to system sleep handling, one power capping update and one PM utility update for 6.7-rc1: - Use __get_safe_page() rather than touching the list in hibernation snapshot code (Brian Geffon). - Fix symbol export for _SIMPLE_ variants of _PM_OPS() (Raag Jadav). - Clean up sync_read handling in snapshot_write_next() (Brian Geffon). - Fix kerneldoc comments for swsusp_check() and swsusp_close() to better match code (Christoph Hellwig). - Downgrade BIOS locked limits pr_warn() in the Intel RAPL power capping driver to pr_debug() (Ville Syrjälä). - Change the minimum python version for the intel_pstate_tracer utility from 2.7 to 3.6 (Doug Smythies). * pm-sleep: PM: hibernate: fix the kerneldoc comment for swsusp_check() and swsusp_close() PM: hibernate: Clean up sync_read handling in snapshot_write_next() PM: sleep: Fix symbol export for _SIMPLE_ variants of _PM_OPS() PM: hibernate: Use __get_safe_page() rather than touching the list * powercap: powercap: intel_rapl: Downgrade BIOS locked limits pr_warn() to pr_debug() * pm-tools: tools/power/x86/intel_pstate_tracer: python minimum version
2023-10-26Merge branch 'pm-cpufreq'Rafael J. Wysocki15-180/+387
Merge cpufreq updates for 6.7-rc1: - Add support for several Qualcomm SoC versions and other similar changes (Christian Marangi, Dmitry Baryshkov, Luca Weiss, Neil Armstrong, Richard Acayan, Robert Marko, Rohit Agarwal, Stephan Gerhold and Varadarajan Narayanan). - Clean up the tegra cpufreq driver (Sumit Gupta). - Use of_property_read_reg() to parse "reg" in pmac32 driver (Rob Herring). - Add support for TI's am62p5 Soc (Bryan Brattlof). - Make ARM_BRCMSTB_AVS_CPUFREQ depends on !ARM_SCMI_CPUFREQ (Florian Fainelli). - Update Kconfig to mention i.MX7 as well (Alexander Stein). - Revise global turbo disable check in intel_pstate (Srinivas Pandruvada). - Carry out initialization of sg_cpu in the schedutil cpufreq governor in one loop (Liao Chang). - Simplify the condition for storing 'down_threshold' in the conservative cpufreq governor (Liao Chang). - Use fine-grained mutex in the userspace cpufreq governor (Liao Chang). - Move is_managed indicator in the userspace cpufreq governor into a per-policy structure (Liao Chang). - Rebuild sched-domains when removing cpufreq driver (Pierre Gondois). - Fix buffer overflow detection in trans_stats() (Christian Marangi). * pm-cpufreq: (32 commits) dt-bindings: cpufreq: qcom-hw: document SM8650 CPUFREQ Hardware cpufreq: arm: Kconfig: Add i.MX7 to supported SoC for ARM_IMX_CPUFREQ_DT cpufreq: qcom-nvmem: add support for IPQ8064 cpufreq: qcom-nvmem: also accept operating-points-v2-krait-cpu cpufreq: qcom-nvmem: drop pvs_ver for format a fuses dt-bindings: cpufreq: qcom-cpufreq-nvmem: Document krait-cpu cpufreq: qcom-nvmem: add support for IPQ6018 dt-bindings: cpufreq: qcom-cpufreq-nvmem: document IPQ6018 cpufreq: qcom-nvmem: Add MSM8909 cpufreq: qcom-nvmem: Simplify driver data allocation cpufreq: stats: Fix buffer overflow detection in trans_stats() dt-bindings: cpufreq: cpufreq-qcom-hw: Add SDX75 compatible cpufreq: ARM_BRCMSTB_AVS_CPUFREQ cannot be used with ARM_SCMI_CPUFREQ cpufreq: ti-cpufreq: Add opp support for am62p5 SoCs cpufreq: dt-platdev: add am62p5 to blocklist cpufreq: tegra194: remove redundant AND with cpu_online_mask cpufreq: tegra194: use refclk delta based loop instead of udelay cpufreq: tegra194: save CPU data to avoid repeated SMP calls cpufreq: Rebuild sched-domains when removing cpufreq driver cpufreq: userspace: Move is_managed indicator into per-policy structure ...
2023-10-26Merge branch 'pm-devfreq'Rafael J. Wysocki12-158/+854
Merge devfreq updates for 6.7-rc1: - Switch to dev_pm_opp_find_freq_(ceil/floor)_indexed() APIs to support specific devices like UFS which handle multiple clocks through OPP (Operationg Performance Point) framework (Manivannan Sadhasivam). - Add perf support to the Rockchip DFI (DDR Monitor Module) devfreq- event driver: * Generalize rockchip-dfi.c to support new RK3568/RK3588 using different DDR type (Sascha Hauer). * Convert devicetree bidning document format to yaml (Sascha Hauer). * Add perf support for DFI (a unit suitable for measuring DDR utilization) to rockchip-dfi.c to extend DFI usage (Sascha Hauer). - Add locking to the OPP handling code in the Mediatek CCI devfreq driver, because the voltage of shared OPP might be changed by multiple drivers (Mark Tseng, Dan Carpenter). - Use device_get_match_data() in the Samsung Exynos PPMU devfreq-event driver (Rob Herring). * pm-devfreq: (26 commits) dt-bindings: devfreq: event: rockchip,dfi: Add rk3588 support dt-bindings: devfreq: event: rockchip,dfi: Add rk3568 support dt-bindings: devfreq: event: convert Rockchip DFI binding to yaml PM / devfreq: rockchip-dfi: add support for RK3588 PM / devfreq: rockchip-dfi: account for multiple DDRMON_CTRL registers PM / devfreq: rockchip-dfi: make register stride SoC specific PM / devfreq: rockchip-dfi: Add perf support PM / devfreq: rockchip-dfi: give variable a better name PM / devfreq: rockchip-dfi: Prepare for multiple users PM / devfreq: rockchip-dfi: Pass private data struct to internal functions PM / devfreq: rockchip-dfi: Handle LPDDR4X PM / devfreq: rockchip-dfi: Handle LPDDR2 correctly PM / devfreq: rockchip-dfi: Add RK3568 support PM / devfreq: rockchip-dfi: Clean up DDR type register defines PM / devfreq: rk3399_dmc,dfi: generalize DDRTYPE defines PM / devfreq: rockchip-dfi: introduce channel mask PM / devfreq: rockchip-dfi: Use free running counter PM / devfreq: mediatek: unlock on error in mtk_ccifreq_target() PM / devfreq: exynos-ppmu: Use device_get_match_data() PM / devfreq: rockchip-dfi: dfi store raw values in counter struct ...
2023-10-25Merge tag 'devfreq-next-for-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/linuxRafael J. Wysocki12-158/+854
Merge devfreq updates for v6.7 from Chanwoo Choi: " Detailed description for this pull request: 1. Update devfreq core - Switch to dev_pm_opp_find_freq_(ceil/floor)_indexed() APIs to support the specific device like UFS which handle the multiple clocks through OPP (Operationg Performance Point) framework. 2. Update the devfreq / devfreq-event drivers - Add perf support to the Rockchip DFI(DDR Monitor Module) devfreq-event driver. : Generalize rockchip-dfi.c to support new RK3568/RK3588 using different DDR type. : Covert devicetree bidning document format to yaml. : DFI is a unit which is suitable for measuring DDR utilization for the DDR frequency scaling driver. Add perf support feature to rockchip-dfi.c to extend DFI usage. The perf support has been tested on a RK3568 and a RK3399. - Protect the OPP handling code in critical section because the voltage of shared OPP might be changed by multiple drivers on Mediatek CCI devfreq driver. - Use device_get_match_data() on Samsung Exynos PPMU devfreq-event driver." * tag 'devfreq-next-for-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/linux: (26 commits) dt-bindings: devfreq: event: rockchip,dfi: Add rk3588 support dt-bindings: devfreq: event: rockchip,dfi: Add rk3568 support dt-bindings: devfreq: event: convert Rockchip DFI binding to yaml PM / devfreq: rockchip-dfi: add support for RK3588 PM / devfreq: rockchip-dfi: account for multiple DDRMON_CTRL registers PM / devfreq: rockchip-dfi: make register stride SoC specific PM / devfreq: rockchip-dfi: Add perf support PM / devfreq: rockchip-dfi: give variable a better name PM / devfreq: rockchip-dfi: Prepare for multiple users PM / devfreq: rockchip-dfi: Pass private data struct to internal functions PM / devfreq: rockchip-dfi: Handle LPDDR4X PM / devfreq: rockchip-dfi: Handle LPDDR2 correctly PM / devfreq: rockchip-dfi: Add RK3568 support PM / devfreq: rockchip-dfi: Clean up DDR type register defines PM / devfreq: rk3399_dmc,dfi: generalize DDRTYPE defines PM / devfreq: rockchip-dfi: introduce channel mask PM / devfreq: rockchip-dfi: Use free running counter PM / devfreq: mediatek: unlock on error in mtk_ccifreq_target() PM / devfreq: exynos-ppmu: Use device_get_match_data() PM / devfreq: rockchip-dfi: dfi store raw values in counter struct ...
2023-10-25Merge tag 'opp-updates-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pmRafael J. Wysocki10-195/+254
Merge OPP (operating performance points) updates for 6.7 from Viresh Kumar: "- Extend support for the opp-level beyond required-opps (Ulf Hansson). - Add dev_pm_opp_find_level_floor() (Krishna chaitanya chundru). - dt-bindings: Allow opp-peak-kBpsfor kryo CPUs, support Qualcomm Krait SoCs and document named opp-microvolt property (Bjorn Andersson, Dmitry Baryshkov and Christian Marangi). - Fix -Wunsequenced warning (Nathan Chancellor). - General cleanup (Viresh Kumar)." * tag 'opp-updates-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm: dt-bindings: opp: opp-v2-kryo-cpu: Document named opp-microvolt property OPP: No need to defer probe from _opp_attach_genpd() OPP: Remove genpd_virt_dev_lock OPP: Reorder code in _opp_set_required_opps_genpd() OPP: Add _link_required_opps() to avoid code duplication OPP: Fix formatting of if/else block dt-bindings: opp: opp-v2-kryo-cpu: support Qualcomm Krait SoCs OPP: Fix -Wunsequenced in _of_add_opp_table_v1() dt-bindings: opp: opp-v2-kryo-cpu: Allow opp-peak-kBps OPP: debugfs: Fix warning with W=1 builds OPP: Remove doc style comments for internal routines OPP: Add dev_pm_opp_find_level_floor() OPP: Extend support for the opp-level beyond required-opps OPP: Switch to use dev_pm_domain_set_performance_state() OPP: Extend dev_pm_opp_data with a level OPP: Add dev_pm_opp_add_dynamic() to allow more flexibility PM: domains: Implement the ->set_performance_state() callback for genpd PM: domains: Introduce dev_pm_domain_set_performance_state()
2023-10-25Merge tag 'cpufreq-arm-updates-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pmRafael J. Wysocki8-89/+302
Merge ARM cpufreq updates for 6.7 from Viresh Kumar: "- Add support for several Qualcomm SoC versions and other similar changes (Christian Marangi, Dmitry Baryshkov, Luca Weiss, Neil Armstrong, Richard Acayan, Robert Marko, Rohit Agarwal, Stephan Gerhold and Varadarajan Narayanan). - Cleanups to the tegra cpufreq driver (Sumit Gupta). - Use of_property_read_reg() to parse "reg" in pmac32 driver (Rob Herring). - Add support for TI's am62p5 Soc (Bryan Brattlof). - Make ARM_BRCMSTB_AVS_CPUFREQ depends on !ARM_SCMI_CPUFREQ (Florian Fainelli). - Update Kconfig to mention i.MX7 as well (Alexander Stein)." * tag 'cpufreq-arm-updates-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm: (25 commits) dt-bindings: cpufreq: qcom-hw: document SM8650 CPUFREQ Hardware cpufreq: arm: Kconfig: Add i.MX7 to supported SoC for ARM_IMX_CPUFREQ_DT cpufreq: qcom-nvmem: add support for IPQ8064 cpufreq: qcom-nvmem: also accept operating-points-v2-krait-cpu cpufreq: qcom-nvmem: drop pvs_ver for format a fuses dt-bindings: cpufreq: qcom-cpufreq-nvmem: Document krait-cpu cpufreq: qcom-nvmem: add support for IPQ6018 dt-bindings: cpufreq: qcom-cpufreq-nvmem: document IPQ6018 cpufreq: qcom-nvmem: Add MSM8909 cpufreq: qcom-nvmem: Simplify driver data allocation dt-bindings: cpufreq: cpufreq-qcom-hw: Add SDX75 compatible cpufreq: ARM_BRCMSTB_AVS_CPUFREQ cannot be used with ARM_SCMI_CPUFREQ cpufreq: ti-cpufreq: Add opp support for am62p5 SoCs cpufreq: dt-platdev: add am62p5 to blocklist cpufreq: tegra194: remove redundant AND with cpu_online_mask cpufreq: tegra194: use refclk delta based loop instead of udelay cpufreq: tegra194: save CPU data to avoid repeated SMP calls dt-bindings: cpufreq: cpufreq-qcom-hw: add SDM670 compatible dt-bindings: cpufreq: qcom-nvmem: Document MSM8909 cpufreq: dt: platdev: Add MSM8909 to blocklist ...
2023-10-25dt-bindings: cpufreq: qcom-hw: document SM8650 CPUFREQ HardwareNeil Armstrong1-0/+1
Document the CPUFREQ Hardware on the SM8650 Platform. Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2023-10-25cpufreq: arm: Kconfig: Add i.MX7 to supported SoC for ARM_IMX_CPUFREQ_DTAlexander Stein1-2/+2
Since commit a5a9dffcc903 ("ARM: imx: Switch imx7d to imx-cpufreq-dt for speed-grading") i.MX7 uses this driver as well. Add it to the description text. Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2023-10-25cpufreq: qcom-nvmem: add support for IPQ8064Christian Marangi1-1/+66
IPQ8064 comes in 3 families: * IPQ8062 up to 1.0GHz * IPQ8064/IPQ8066/IPQ8068 up to 1.4GHz * IPQ8065/IPQ8069 up to 1.7Ghz So, in order to be able to support one OPP table, add support for IPQ8064 family based of SMEM SoC ID-s and correctly set the version so opp-supported-hw can be correctly used. Bit are set with the following logic: * IPQ8062 BIT 0 * IPQ8064/IPQ8066/IPQ8068 BIT 1 * IPQ8065/IPQ8069 BIT 2 speed is never fused, only pvs values are fused. IPQ806x SoC doesn't have pvs_version so we drop and we use the new pattern: opp-microvolt-speed0-pvs<PSV_VALUE> Example: - for ipq8062 psv2 opp-microvolt-speed0-pvs2 = < 925000 878750 971250> Fixes: a8811ec764f9 ("cpufreq: qcom: Add support for krait based socs") Signed-off-by: Christian Marangi <ansuelsmth@gmail.com> [ Viresh: Fixed rebase conflict. ] Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2023-10-25cpufreq: qcom-nvmem: also accept operating-points-v2-krait-cpuDmitry Baryshkov1-1/+2
the qcom-cpufreq-nvmem driver attempts to support both Qualcomm Kryo (newer 64-bit ARMv8 cores) and Krait (older 32-bit ARMv7 cores). It makes no sense to use 'operating-points-v2-kryo-cpu' compatibility node for the Krait cores. Add support for 'operating-points-v2-krait-cpu' compatibility string. Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Christian Marangi <ansuelsmth@gmail.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2023-10-25cpufreq: qcom-nvmem: drop pvs_ver for format a fusesDmitry Baryshkov1-3/+2
The fuses used on msm8960 / apq8064 / ipq806x families of devices do not have the pvs version. Drop this argument from parsing function. Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Christian Marangi <ansuelsmth@gmail.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2023-10-25dt-bindings: cpufreq: qcom-cpufreq-nvmem: Document krait-cpuChristian Marangi1-1/+3
Document newly introduced operating-points-v2-krait-cpu compatible to the list of accepted compatible for opp-v2-kryo-cpu nodes. Signed-off-by: Christian Marangi <ansuelsmth@gmail.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2023-10-25cpufreq: qcom-nvmem: add support for IPQ6018Robert Marko2-0/+59
IPQ6018 SoC series comes in multiple SKU-s, and not all of them support high frequency OPP points. SoC itself does however have a single bit in QFPROM to indicate the CPU speed-bin. That bit is used to indicate frequency limit of 1.5GHz, but that alone is not enough as IPQ6000 only goes up to 1.2GHz, but SMEM ID can be used to limit it further. IPQ6018 compatible is blacklisted from DT platdev as the cpufreq device will get created by NVMEM CPUFreq driver. Signed-off-by: Robert Marko <robimarko@gmail.com> [ Viresh: Fixed rebase conflict. ] Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2023-10-25dt-bindings: cpufreq: qcom-cpufreq-nvmem: document IPQ6018Robert Marko1-0/+1
Document IPQ6018 compatible for Qcom NVMEM CPUFreq driver. Signed-off-by: Robert Marko <robimarko@gmail.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2023-10-25cpufreq: qcom-nvmem: Add MSM8909Stephan Gerhold1-0/+26
When the MSM8909 SoC is used together with the PM8909 PMIC the primary power supply for the CPU (VDD_APC) is shared with other components to the SoC, namely the VDD_CX power domain typically supplied by the PM8909 S1 regulator. This means that all votes for necessary performance states go via the RPM firmware which collects the requirements from all the processors in the SoC. The RPM firmware then chooses the actual voltage based on the performance states ("corners"), depending on calibration values in the NVMEM and other factors. The MSM8909 SoC is also sometimes used with the PM8916 or PM660 PMIC. In that case there is a dedicated regulator connected to VDD_APC and Linux is responsible to do adaptive voltage scaling using CPR (similar to the existing code for QCS404). This difference can be described in the device tree, by either assigning the CPU a power domain from RPMPD or from the CPR driver. Describe this using "perf" as generic power domain name, which is also used already for SCMI based platforms. Also add a simple function that reads the speedbin from a NVMEM cell and sets it as-is for opp-supported-hw. The actual bit position can be described in the device tree without additional driver changes. Signed-off-by: Stephan Gerhold <stephan.gerhold@kernkonzept.com> Acked-by: Konrad Dybcio <konrad.dybcio@linaro.org> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> [ Viresh: Fixed rebase conflict. ] Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2023-10-25cpufreq: qcom-nvmem: Simplify driver data allocationStephan Gerhold1-31/+18
Simplify the allocation and cleanup of driver data by using devm together with a flexible array. Prepare for adding additional per-CPU data by defining a struct qcom_cpufreq_drv_cpu instead of storing the opp_tokens directly. Signed-off-by: Stephan Gerhold <stephan.gerhold@kernkonzept.com> Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2023-10-24powercap: intel_rapl: Downgrade BIOS locked limits pr_warn() to pr_debug()Ville Syrjälä1-1/+1
Before the refactoring the pr_warn() only triggered when someone explicitly tried to write to a BIOS locked limit. After the refactoring the warning is also triggering during system resume. The user can't do anything about this so printing scary warnings doesn't make sense Keep the printk but make it pr_debug() instead of pr_warn() to make it clear it's not a serious issue. Fixes: 9050a9cd5e4c ("powercap: intel_rapl: Cleanup Power Limits support") Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: 6.5+ <stable@vger.kernel.org> # 6.5+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2023-10-24cpufreq: stats: Fix buffer overflow detection in trans_stats()Christian Marangi1-7/+7
Commit 3c0897c180c6 ("cpufreq: Use scnprintf() for avoiding potential buffer overflow") switched from snprintf to the more secure scnprintf but never updated the exit condition for PAGE_SIZE. As the commit say and as scnprintf document, what scnprintf returns what is actually written not counting the '\0' end char. This results in the case of len exceeding the size, len set to PAGE_SIZE - 1, as it can be written at max PAGE_SIZE - 1 (as '\0' is not counted) Because of len is never set to PAGE_SIZE, the function never break early, never prints the warning and never return -EFBIG. Fix this by changing the condition to PAGE_SIZE - 1 to correctly trigger the error. Cc: 5.10+ <stable@vger.kernel.org> # 5.10+ Fixes: 3c0897c180c6 ("cpufreq: Use scnprintf() for avoiding potential buffer overflow") Signed-off-by: Christian Marangi <ansuelsmth@gmail.com> [ rjw: Subject and changelog edits ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2023-10-22Linux 6.6-rc7Linus Torvalds1-1/+1
2023-10-22Merge tag 'phy-fixes-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phyLinus Torvalds10-49/+58
Pull phy fixes from Vinod Koul: - mapphone-mdm6600 runtime pm & pinctrl handling fixes - Qualcomm qmp usb pcs register fixes, qmp pcie register size warning fix, m31 fixes for wrong pointer in PTR_ERR and dropping wrong vreg check, qmp combo fix for 8550 power config register - realtek usb fix for debugfs_create_dir() and kconfig dependency * tag 'phy-fixes-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy: phy: realtek: Realtek PHYs should depend on ARCH_REALTEK phy: qualcomm: Fix typos in comments phy: qcom-qmp-combo: initialize PCS_USB registers phy: qcom-qmp-combo: Square out 8550 POWER_STATE_CONFIG1 phy: qcom: m31: Remove unwanted qphy->vreg is NULL check phy: realtek: usb: Drop unnecessary error check for debugfs_create_dir() phy: qcom: phy-qcom-m31: change m31_ipq5332_regs to static phy: qcom: phy-qcom-m31: fix wrong pointer pass to PTR_ERR() dt-bindings: phy: qcom,ipq8074-qmp-pcie: fix warning regarding reg size phy: qcom-qmp-usb: split PCS_USB init table for sc8280xp and sa8775p phy: qcom-qmp-usb: initialize PCS_USB registers phy: mapphone-mdm6600: Fix pinctrl_pm handling for sleep pins phy: mapphone-mdm6600: Fix runtime PM for remove phy: mapphone-mdm6600: Fix runtime disable on probe
2023-10-22Merge tag 'efi-fixes-for-v6.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efiLinus Torvalds4-10/+71
Pull EFI fixes from Ard Biesheuvel: "The boot_params pointer fix uses a somewhat ugly extern struct declaration but this will be cleaned up the next cycle. - don't try to print warnings to the console when it is no longer available - fix theoretical memory leak in SSDT override handling - make sure that the boot_params global variable is set before the KASLR code attempts to hash it for 'randomness' - avoid soft lockups in the memory acceptance code" * tag 'efi-fixes-for-v6.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi: efi/unaccepted: Fix soft lockups caused by parallel memory acceptance x86/boot: efistub: Assign global boot_params variable efi: fix memory leak in krealloc failure handling x86/efistub: Don't try to print after ExitBootService()
2023-10-21Merge tag 'powerpc-6.6-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linuxLinus Torvalds3-9/+5
Pull powerpc fixes from Michael Ellerman: - Fix stale propagated yield_cpu in qspinlocks leading to lockups - Fix broken hugepages on some configs due to ARCH_FORCE_MAX_ORDER - Fix a spurious warning when copros are in use at exit time Thanks to Nicholas Piggin, Christophe Leroy, Nysal Jan K.A Sachin Sant, and Shrikanth Hegde. * tag 'powerpc-6.6-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/qspinlock: Fix stale propagated yield_cpu powerpc/64s/radix: Don't warn on copros in radix__tlb_flush() powerpc/mm: Allow ARCH_FORCE_MAX_ORDER up to 12
2023-10-21Merge tag 'gpio-fixes-for-v6.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linuxLinus Torvalds2-3/+5
Pull gpio fixes from Bartosz Golaszewski: - fix interrupt handling in suspend and wakeup in gpio-vf610 - fix a bug on setting direction to output in gpio-vf610 - add a missing memset() in gpio ACPI code * tag 'gpio-fixes-for-v6.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: gpiolib: acpi: Add missing memset(0) to acpi_get_gpiod_from_data() gpio: vf610: set value before the direction to avoid a glitch gpio: vf610: mask the gpio irq in system suspend and support wakeup
2023-10-21Merge tag 'rust-fixes-6.6' of https://github.com/Rust-for-Linux/linuxLinus Torvalds4-12/+12
Pull rust fixes from Miguel Ojeda: - GCC build: fix bindgen build error with '-fstrict-flex-arrays' - Error module: fix the description for 'ECHILD' and fix Markdown style nit - Code docs: fix logo replacement - Docs: update docs output path - Kbuild: remove old docs output path in 'cleandocs' target * tag 'rust-fixes-6.6' of https://github.com/Rust-for-Linux/linux: rust: docs: fix logo replacement kbuild: remove old Rust docs output path docs: rust: update Rust docs output path rust: fix bindgen build error with fstrict-flex-arrays rust: error: Markdown style nit rust: error: fix the description for `ECHILD`
2023-10-21Merge tag 'sched-urgent-2023-10-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds1-1/+2
Pull scheduler fix from Ingo Molnar: "Fix a recently introduced use-after-free bug" * tag 'sched-urgent-2023-10-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched/eevdf: Fix heap corruption more
2023-10-21Merge tag 'perf-urgent-2023-10-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds2-6/+34
Pull perf events fix from Ingo Molnar: "Fix group event semantics" * tag 'perf-urgent-2023-10-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf: Disallow mis-matched inherited group reads
2023-10-21Merge tag 'probes-fixes-v6.6-rc6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-traceLinus Torvalds3-0/+77
Pull probes fixes from Masami Hiramatsu: - kprobe-events: Fix kprobe events to reject if the attached symbol is not unique name because it may not the function which the user want to attach to. (User can attach a probe to such symbol using the nearest unique symbol + offset.) - selftest: Add a testcase to ensure the kprobe event rejects non unique symbol correctly. * tag 'probes-fixes-v6.6-rc6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: selftests/ftrace: Add new test case which checks non unique symbol tracing/kprobes: Return EADDRNOTAVAIL when func matches several symbols
2023-10-21Merge tag 's390-6.6-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linuxLinus Torvalds3-5/+23
Pull s390 fixes from Vasily Gorbik: - Fix IOMMU bitmap allocation in s390 PCI to avoid out of bounds access when IOMMU pages aren't a multiple of 64 - Fix kasan crashes when accessing DCSS mapping in memory holes by adding corresponding kasan zero shadow mappings - Fix a memory leak in css_alloc_subchannel in case dma_set_coherent_mask fails * tag 's390-6.6-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/pci: fix iommu bitmap allocation s390/kasan: handle DCSS mapping in memory holes s390/cio: fix a memleak in css_alloc_subchannel
2023-10-21Merge tag 'platform-drivers-x86-v6.6-5' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86Linus Torvalds10-32/+45
Pull x86 platform driver fixes from Hans de Goede: - Fix spurious brightness down presses on newer Asus laptop models - Fix backlight control not working on T2 Mac Pro all-in-ones - Add Armin Wolf as new maintainer for the WMI bus driver and change its status from orphaned to maintained - A few other small fixes * tag 'platform-drivers-x86-v6.6-5' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: platform/mellanox: mlxbf-tmfifo: Fix a warning message apple-gmux: Hard Code max brightness for MMIO gmux platform/surface: platform_profile: Propagate error if profile registration fails platform/x86: asus-wmi: Map 0x2a code, Ignore 0x2b and 0x2c events platform/x86: asus-wmi: Only map brightness codes when using asus-wmi backlight control platform/x86: asus-wmi: Change ASUS_WMI_BRN_DOWN code from 0x20 to 0x2e platform/x86: wmi: Update MAINTAINERS entry platform/x86: msi-ec: Fix the 3rd config platform/x86: intel-uncore-freq: Conditionally create attribute for read frequency platform: mellanox: Fix a resource leak in an error handling path in probing flow
2023-10-21Merge tag 'usb-6.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usbLinus Torvalds2-4/+13
Pull USB / Thunderbolt fixes and ids from Greg KH: "Here are four small patches for USB and Thunderbolt for 6.6-rc7 that do the following: - new usb-serial device ids - thunderbolt driver fix for reported issue All of these have been in linux-next with no reported problems" * tag 'usb-6.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: USB: serial: option: add Fibocom to DELL custom modem FM101R-GL USB: serial: option: add entry for Sierra EM9191 with new firmware USB: serial: option: add Telit LE910C4-WWX 0x1035 composition thunderbolt: Call tb_switch_put() once DisplayPort bandwidth request is finished
2023-10-21Merge tag 'v6.6-p5' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds1-3/+2
Pull crypto fix from Herbert Xu: "Fix a 6.5 regression in crypto/asymmetric_keys" * tag 'v6.6-p5' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: KEYS: asymmetric: Fix sign/verify on pkcs1pad without a hash
2023-10-21Merge tag 'iomap-6.6-fixes-5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linuxLinus Torvalds1-3/+7
Pull iomap fix from Darrick Wong: - Fix a bug where a writev consisting of a bunch of sub-fsblock writes where the last buffer address is invalid could lead to an infinite loop * tag 'iomap-6.6-fixes-5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: iomap: fix short copy in iomap_write_iter()
2023-10-20Merge tag 'perf-tools-fixes-for-v6.6-2-2023-10-20' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-toolsLinus Torvalds5-23/+55
Pull perf tools fixes from Arnaldo Carvalho de Melo: - Fix regression in reading scale and unit files from sysfs for PMU events, so that we can use that info to pretty print instead of printing raw numbers: # perf stat -e power/energy-ram/,power/energy-gpu/ sleep 2 Performance counter stats for 'system wide': 1.64 Joules power/energy-ram/ 0.20 Joules power/energy-gpu/ 2.001228914 seconds time elapsed # # grep -m1 "model name" /proc/cpuinfo model name : Intel(R) Core(TM) i7-8650U CPU @ 1.90GHz # - The small llvm.cpp file used to check if the llvm devel files are present was incorrectly deleted when removing the BPF event in 'perf trace', put it back as it is also used by tools/bpf/bpftool, that uses llvm routines to do disassembly of BPF object files. - Fix use of addr_location__exit() in dlfilter__object_code(), making sure that it is only used to pair a previous addr_location__init() call. * tag 'perf-tools-fixes-for-v6.6-2-2023-10-20' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools: tools build: Fix llvm feature detection, still used by bpftool perf dlfilter: Add a test for object_code() perf dlfilter: Fix use of addr_location__exit() in dlfilter__object_code() perf pmu: Fix perf stat output with correct scale and unit
2023-10-20Merge tag 'linux_kselftest_active-fixes-6.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftestLinus Torvalds1-7/+9
Pull Kselftest fix from Shuah Khan: "One single fix to assert check in user_events abi_test to properly check bit value on Big Endian architectures. The code treated the bit values as Little Endian and the check failed on Big Endian" * tag 'linux_kselftest_active-fixes-6.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: selftests/user_events: Fix abi_test for BE archs
2023-10-20Merge tag 'nfs-for-6.6-4' of git://git.linux-nfs.org/projects/anna/linux-nfsLinus Torvalds5-21/+38
Pull NFS client fixes from Anna Schumaker: "Stable Fix: - Fix a pNFS hang in nfs4_evict_inode() Fixes: - Force update of suid/sgid bits after an NFS v4.2 ALLOCATE op - Fix a potential oops in nfs_inode_remove_request() - Check the validity of the layout pointer in ff_layout_mirror_prepare_stats() - Fix incorrectly marking the pNFS MDS with USE_PNFS_DS in some cases" * tag 'nfs-for-6.6-4' of git://git.linux-nfs.org/projects/anna/linux-nfs: NFSv4.1: fixup use EXCHGID4_FLAG_USE_PNFS_DS for DS server pNFS/flexfiles: Check the layout validity in ff_layout_mirror_prepare_stats pNFS: Fix a hang in nfs4_evict_inode() NFS: Fix potential oops in nfs_inode_remove_request() nfs42: client needs to strip file mode's suid/sgid bit after ALLOCATE op
2023-10-20Merge tag 'fsnotify_for_v6.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fsLinus Torvalds1-8/+17
Pull fanotify fix from Jan Kara: "Disable superblock / mount marks for filesystems that can encode file handles but not open them (currently only overlayfs). It is not clear the functionality is useful in any way so let's better disable it before someone comes up with some creative misuse" * tag 'fsnotify_for_v6.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: fanotify: limit reporting of event with non-decodeable file handles
2023-10-20Merge tag 'acpi-6.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pmLinus Torvalds2-2/+7
Pull ACPI fixes from Rafael Wysocki: "These fix the ACPI initialization ordering on ARM and ACPI IRQ management in the cases when irq_create_fwspec_mapping() fails. Specifics: - Fix ACPI initialization ordering on ARM that was changed incorrectly during the 6.5 development cycle (Hanjun Guo) - Make acpi_register_gsi() return an error code as appropriate when irq_create_fwspec_mapping() returns 0 on failure (Sunil V L)" * tag 'acpi-6.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI: bus: Move acpi_arm_init() to the place of after acpi_ghes_init() ACPI: irq: Fix incorrect return value in acpi_register_gsi()
2023-10-20Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds2-2/+4
Pull SCSI fixes from James Bottomley: "Two small fixes, both in drivers. The mptsas one is really fixing an error path issue where it can leave the misc driver loaded even though the sas driver fails to initialize" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: qla2xxx: Fix double free of dsd_list during driver load scsi: mpt3sas: Fix in error path
2023-10-20Merge tag 'pinctrl-v6.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrlLinus Torvalds2-15/+18
Pull pin control fixes from Linus Walleij: - Concurrent register updates in the Qualcomm LPASS pin controller gets a proper lock. - revert a mutex fix that was causing problems: contention on the mutex or something of the sort lead to probe reordering and MMC block devices start to register in a different order, which unsuspecting userspace is not ready to handle * tag 'pinctrl-v6.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: Revert "pinctrl: avoid unsafe code pattern in find_pinctrl()" pinctrl: qcom: lpass-lpi: fix concurrent register updates
2023-10-20Merge tag 'mtd/fixes-for-6.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linuxLinus Torvalds12-5/+73
Pull MTD fixes from Miquel Raynal: "In the raw NAND subsystem, the major fix prevents using cached reads with devices not supporting it. There was two bug reports about this. Apart from that, three drivers (pl353, arasan and marvell) could sometimes hide page program failures due to their their own program page helper not being fully compliant with the specification (many drivers use the default helpers shared by the core). Adding a missing check prevents these situation. Finally, the Qualcomm driver had a broken error path. In the SPI-NAND subsystem one Micron device used a wrong bitmak reporting possibly corrupted ECC status. Finally, the physmap-core got stripped from its map_rom fallback by mistake, this feature is added back" * tag 'mtd/fixes-for-6.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: mtd: rawnand: Ensure the nand chip supports cached reads mtd: rawnand: qcom: Unmap the right resource upon probe failure mtd: rawnand: pl353: Ensure program page operations are successful mtd: rawnand: arasan: Ensure program page operations are successful mtd: spinand: micron: correct bitmask for ecc status mtd: physmap-core: Restore map_rom fallback mtd: rawnand: marvell: Ensure program page operations are successful
2023-10-20Merge tag 'mmc-v6.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmcLinus Torvalds7-55/+99
Pull MMC fixes from Ulf Hansson: "MMC core: - Capture correct oemid-bits for eMMC cards - Fix error propagation for some ioctl commands - Hold retuning if SDIO is in 1-bit mode MMC host: - mtk-sd: Use readl_poll_timeout_atomic to not "schedule while atomic" - sdhci-msm: Correct minimum number of clocks - sdhci-pci-gli: Fix LPM negotiation so x86/S0ix SoCs can suspend - sdhci-sprd: Fix error code in sdhci_sprd_tuning()" * tag 'mmc-v6.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: mmc: core: Capture correct oemid-bits for eMMC cards mmc: mtk-sd: Use readl_poll_timeout_atomic in msdc_reset_hw mmc: core: Fix error propagation for some ioctl commands mmc: sdhci-sprd: Fix error code in sdhci_sprd_tuning() mmc: sdhci-pci-gli: fix LPM negotiation so x86/S0ix SoCs can suspend mmc: core: sdio: hold retuning if sdio in 1-bit mode dt-bindings: mmc: sdhci-msm: correct minimum number of clocks
2023-10-20Merge tag 'block-6.6-2023-10-20' of git://git.kernel.dk/linuxLinus Torvalds7-18/+25
Pull block fixes from Jens Axboe: "A fix for a regression with sed-opal and saved keys, and outside of that an NVMe pull request fixing a few minor issues on that front" * tag 'block-6.6-2023-10-20' of git://git.kernel.dk/linux: nvme-pci: add BOGUS_NID for Intel 0a54 device nvmet-auth: complete a request only after freeing the dhchap pointers nvme: sanitize metadata bounce buffer for reads block: Fix regression in sed-opal for a saved key. nvme-auth: use chap->s2 to indicate bidirectional authentication nvmet-tcp: Fix a possible UAF in queue intialization setup nvme-rdma: do not try to stop unallocated queues
2023-10-20Merge tag 'io_uring-6.6-2023-10-20' of git://git.kernel.dk/linuxLinus Torvalds1-0/+6
Pull io_uring fix from Jens Axboe: "Just a single fix for a bug report that came in, fixing a case where failure to init a ring with IORING_SETUP_NO_MMAP can trigger a NULL pointer dereference" * tag 'io_uring-6.6-2023-10-20' of git://git.kernel.dk/linux: io_uring: fix crash with IORING_SETUP_NO_MMAP and invalid SQ ring address
2023-10-20Merge tag 'sound-6.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/soundLinus Torvalds16-34/+146
Pull sound fixes from Takashi Iwai: "Still higher volume than wished, but all are driver-specific small fixes and look safe for this late RC. The majority of changes are for ASoC, especially for wcd938x driver and Cirrus codec drivers, while there are other random fixes including usual HD-audio quirks" * tag 'sound-6.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (22 commits) ASoC: da7219: Correct the process of setting up Gnd switch in AAD ALSA: hda/realtek - Fixed ASUS platform headset Mic issue ALSA: hda/realtek: Add quirk for ASUS ROG GU603ZV ALSA: hda/relatek: Enable Mute LED on HP Laptop 15s-fq5xxx ASoC: dwc: Fix non-DT instantiation ASoC: codecs: tas2780: Fix log of failed reset via I2C. ASoC: rt5650: fix the wrong result of key button ASoC: cs42l42: Fix missing include of gpio/consumer.h ASoC: cs42l43: Update values for bias sense ASoC: dt-bindings: cirrus,cs42l43: Update values for bias sense ASoC: cs35l56: ASP1 DOUT must default to Hi-Z when not transmitting ASoC: pxa: fix a memory leak in probe() ASoC: cs35l56: Fix illegal use of init_completion() ASoC: codecs: wcd938x-sdw: fix runtime PM imbalance on probe errors ASoC: codecs: wcd938x-sdw: fix use after free on driver unbind ASoC: codecs: wcd938x: fix runtime PM imbalance on remove ASoC: codecs: wcd938x: fix regulator leaks on probe errors ASoC: codecs: wcd938x: fix resource leaks on bind errors ASoC: codecs: wcd938x: fix unbind tear down order ASoC: codecs: wcd938x: drop bogus bind error handling ...
2023-10-20Merge tag 'drm-fixes-2023-10-20' of git://anongit.freedesktop.org/drm/drmLinus Torvalds23-72/+109
Pull drm fixes from Dave Airlie: "Regular fixes for the week, amdgpu, i915, nouveau, with some other scattered around, nothing major. amdgpu: - Fix possible NULL pointer dereference - Avoid possible BUG_ON in GPUVM updates - Disable AMD_CTX_PRIORITY_UNSET i915: - Fix display issue that was blocking S0ix - Retry gtt fault when out of fence registers bridge: - ti-sn65dsi86: Fix device lifetime edid: - Add quirk for BenQ GW2765 ivpu: - Extend address range for MMU mmap nouveau: - DP-connector fixes - Documentation fixes panel: - Move AUX B116XW03 into panel-simple scheduler: - Eliminate DRM_SCHED_PRIORITY_UNSET ttm: - Fix possible NULL-ptr deref in cleanup mediatek: - Correctly free sg_table in gem prime vmap" * tag 'drm-fixes-2023-10-20' of git://anongit.freedesktop.org/drm/drm: drm/amdgpu: Reserve fences for VM update drm/amdgpu: Fix possible null pointer dereference accel/ivpu: Extend address range for MMU mmap Revert "accel/ivpu: Use cached buffers for FW loading" accel/ivpu: Don't enter d0i3 during FLR drm/i915: Retry gtt fault when out of fence registers drm/i915/cx0: Only clear/set the Pipe Reset bit of the PHY Lanes Owned gpu/drm: Eliminate DRM_SCHED_PRIORITY_UNSET drm/amdgpu: Unset context priority is now invalid drm/mediatek: Correctly free sg_table in gem prime vmap drm/edid: add 8 bpc quirk to the BenQ GW2765 drm/ttm: Reorder sys manager cleanup step drm/nouveau/disp: fix DP capable DSM connectors drm/nouveau: exec: fix ioctl kernel-doc warning drm/panel: Move AUX B116XW03 out of panel-edp back to panel-simple drm/bridge: ti-sn65dsi86: Associate DSI device lifetime with auxiliary device
2023-10-20Merge 3rd batch of EFI fixes into efi/urgentArd Biesheuvel4-10/+71
2023-10-20efi/unaccepted: Fix soft lockups caused by parallel memory acceptanceKirill A. Shutemov1-4/+60
Michael reported soft lockups on a system that has unaccepted memory. This occurs when a user attempts to allocate and accept memory on multiple CPUs simultaneously. The root cause of the issue is that memory acceptance is serialized with a spinlock, allowing only one CPU to accept memory at a time. The other CPUs spin and wait for their turn, leading to starvation and soft lockup reports. To address this, the code has been modified to release the spinlock while accepting memory. This allows for parallel memory acceptance on multiple CPUs. A newly introduced "accepting_list" keeps track of which memory is currently being accepted. This is necessary to prevent parallel acceptance of the same memory block. If a collision occurs, the lock is released and the process is retried. Such collisions should rarely occur. The main path for memory acceptance is the page allocator, which accepts memory in MAX_ORDER chunks. As long as MAX_ORDER is equal to or larger than the unit_size, collisions will never occur because the caller fully owns the memory block being accepted. Aside from the page allocator, only memblock and deferered_free_range() accept memory, but this only happens during boot. The code has been tested with unit_size == 128MiB to trigger collisions and validate the retry codepath. Fixes: 2053bc57f367 ("efi: Add unaccepted memory support") Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Reported-by: Michael Roth <michael.roth@amd.com Reviewed-by: Nikolay Borisov <nik.borisov@suse.com> Reviewed-by: Vlastimil Babka <vbabka@suse.cz> Tested-by: Michael Roth <michael.roth@amd.com> [ardb: drop unnecessary cpu_relax() call] Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
2023-10-20Merge branch 'acpi-irq'Rafael J. Wysocki1-1/+6
Merge ACPI IRQ management fix for 6.6-rc7 (Sunil V L). * acpi-irq: ACPI: irq: Fix incorrect return value in acpi_register_gsi()
2023-10-20selftests/ftrace: Add new test case which checks non unique symbolFrancis Laniel1-0/+13
If name_show() is non unique, this test will try to install a kprobe on this function which should fail returning EADDRNOTAVAIL. On kernel where name_show() is not unique, this test is skipped. Link: https://lore.kernel.org/all/20231020104250.9537-3-flaniel@linux.microsoft.com/ Cc: stable@vger.kernel.org Signed-off-by: Francis Laniel <flaniel@linux.microsoft.com> Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
2023-10-20tracing/kprobes: Return EADDRNOTAVAIL when func matches several symbolsFrancis Laniel2-0/+64
When a kprobe is attached to a function that's name is not unique (is static and shares the name with other functions in the kernel), the kprobe is attached to the first function it finds. This is a bug as the function that it is attaching to is not necessarily the one that the user wants to attach to. Instead of blindly picking a function to attach to what is ambiguous, error with EADDRNOTAVAIL to let the user know that this function is not unique, and that the user must use another unique function with an address offset to get to the function they want to attach to. Link: https://lore.kernel.org/all/20231020104250.9537-2-flaniel@linux.microsoft.com/ Cc: stable@vger.kernel.org Fixes: 413d37d1eb69 ("tracing: Add kprobe-based event tracer") Suggested-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Francis Laniel <flaniel@linux.microsoft.com> Link: https://lore.kernel.org/lkml/20230819101105.b0c104ae4494a7d1f2eea742@kernel.org/ Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>