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2020-09-13sh: fix syscall tracingsh-for-5.9-part2for-nextRich Felker-11/+5
Addition of SECCOMP_FILTER exposed a longstanding bug in do_syscall_trace_enter, whereby r0 (the 5th argument register) was mistakenly used where r3 (syscall_nr) was intended. By overwriting r0 rather than r3 with -1 when attempting to block a syscall, the existing code would instead have caused the syscall to execute with an argument clobbered. Commit 0bb605c2c7f2b4b3 then introduced skipping of the syscall when do_syscall_trace_enter returns -1, so that the return value set by seccomp filters would not be clobbered by -ENOSYS. This eliminated the clobbering of the 5th argument register, but instead caused syscalls made with a 5th argument of -1 to be misinterpreted as a request by do_syscall_trace_enter to suppress the syscall. Fixes: 0bb605c2c7f2b4b3 ("sh: Add SECCOMP_FILTER") Fixes: ab99c733ae73cce3 ("sh: Make syscall tracer use tracehook notifiers, add TIF_NOTIFY_RESUME.") Tested-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Signed-off-by: Rich Felker <dalias@libc.org>
2020-09-13sh: remove spurious circular inclusion from asm/smp.hRich Felker-1/+0
Commit 0cd39f4600ed4de8 added inclusion of smp.h to lockdep.h, creating a circular include dependency where arch/sh's asm/smp.h in turn includes spinlock.h which depends on lockdep.h. Since our asm/smp.h does not actually need spinlock.h, just remove it. Fixes: 0cd39f4600ed4de8 ("locking/seqlock, headers: Untangle the spaghetti monster") Tested-by: Rob Landley <rob@landley.net> Signed-off-by: Rich Felker <dalias@libc.org>
2020-09-13Linux 5.9-rc5v5.9-rc5Linus Torvalds-1/+1
2020-09-13Merge tag 'armsoc-fixes' of ↵Linus Torvalds-68/+78
git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull ARM SoC fixes from Olof Johansson: "A collection of fixes I've been accruing over the last few weeks, none of them have been severe enough to warrant flushing the queue but it's been long enough now that it's a good idea to send them in. A handful of them are fixups for QSPI DT/bindings/compatibles, some smaller fixes for system DMA clock control and TMU interrupts on i.MX, a handful of fixes for OMAP, including a fix for DSI (display) on omap5" * tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (27 commits) arm64: dts: ns2: Fixed QSPI compatible string ARM: dts: BCM5301X: Fixed QSPI compatible string ARM: dts: NSP: Fixed QSPI compatible string ARM: dts: bcm: HR2: Fixed QSPI compatible string dt-bindings: spi: Fix spi-bcm-qspi compatible ordering ARM: dts: imx6sx: fix the pad QSPI1B_SCLK mux mode for uart3 arm64: dts: imx8mp: correct sdma1 clk setting arm64: dts: imx8mq: Fix TMU interrupt property ARM: dts: imx7d-zii-rmu2: fix rgmii phy-mode for ksz9031 phy ARM: dts: vfxxx: Add syscon compatible with OCOTP ARM: dts: imx6q-logicpd: Fix broken PWM arm64: dts: imx: Add missing imx8mm-beacon-kit.dtb to build ARM: dts: imx6q-prtwd2: Remove unneeded i2c unit name ARM: dts: imx6qdl-gw51xx: Remove unneeded #address-cells/#size-cells ARM: dts: imx7ulp: Correct gpio ranges ARM: dts: ls1021a: fix QuadSPI-memory reg range arm64: defconfig: Enable ptn5150 extcon driver arm64: defconfig: Enable USB gadget with configfs ARM: configs: Update Integrator defconfig ARM: dts: omap5: Fix DSI base address and clocks ...
2020-09-13Merge tag 'usb-5.9-rc5' of ↵Linus Torvalds-81/+87
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB/Thunderbolt fixes from Greg KH: "Here are some small USB and Thunderbolt driver fixes for 5.9-rc5. Nothing huge, just a number of bugfixes and new device ids for problems reported: - new USB serial driver ids - bug fixes for syzbot reported problems - typec driver fixes - thunderbolt driver fixes - revert of reported broken commit All of these have been in linux-next with no reported issues" * tag 'usb-5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: usb: typec: intel_pmc_mux: Do not configure SBU and HSL Orientation in Alternate modes usb: typec: intel_pmc_mux: Do not configure Altmode HPD High usb: core: fix slab-out-of-bounds Read in read_descriptors Revert "usb: dwc3: meson-g12a: fix shared reset control use" usb: typec: ucsi: acpi: Check the _DEP dependencies usb: typec: intel_pmc_mux: Un-register the USB role switch usb: Fix out of sync data toggle if a configured device is reconfigured USB: serial: option: support dynamic Quectel USB compositions USB: serial: option: add support for SIM7070/SIM7080/SIM7090 modules thunderbolt: Use maximum USB3 link rate when reclaiming if link is not up thunderbolt: Disable ports that are not implemented USB: serial: ftdi_sio: add IDs for Xsens Mti USB converter
2020-09-13Merge tag 'staging-5.9-rc5' of ↵Linus Torvalds-99/+169
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging/IIO driver fixes from Greg KH: "Here are a number of staging and IIO driver fixes for 5.9-rc5. The majority of these are IIO driver fixes, to resolve a timestamp issue that was recently found to affect a bunch of IIO drivers. The other fixes in here are: - small IIO driver fixes - greybus driver fix - counter driver fix (came in through the IIO fixes tree) All of these have been in linux-next for a while with no reported issues" * tag 'staging-5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (23 commits) iio: adc: mcp3422: fix locking on error path iio: adc: mcp3422: fix locking scope iio: adc: meson-saradc: Use the parent device to look up the calib data iio:adc:max1118 Fix alignment of timestamp and data leak issues iio:adc:ina2xx Fix timestamp alignment issue. iio:adc:ti-adc084s021 Fix alignment and data leak issues. iio:adc:ti-adc081c Fix alignment and data leak issues iio:magnetometer:ak8975 Fix alignment and data leak issues. iio:light:ltr501 Fix timestamp alignment issue. iio:light:max44000 Fix timestamp alignment and prevent data leak. iio:chemical:ccs811: Fix timestamp alignment and prevent data leak. iio:proximity:mb1232: Fix timestamp alignment and prevent data leak. iio:accel:mma7455: Fix timestamp alignment and prevent data leak. iio:accel:bmc150-accel: Fix timestamp alignment and prevent data leak. iio:accel:mma8452: Fix timestamp alignment and prevent data leak. iio: accel: kxsd9: Fix alignment of local buffer. iio: adc: rockchip_saradc: select IIO_TRIGGERED_BUFFER iio: adc: ti-ads1015: fix conversion when CONFIG_PM is not set counter: microchip-tcb-capture: check the correct variable iio: cros_ec: Set Gyroscope default frequency to 25Hz ...
2020-09-13Merge tag 'driver-core-5.9-rc5' of ↵Linus Torvalds-27/+39
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core fixes from Greg KH: "Here are some small driver core and debugfs fixes for 5.9-rc5 Included in here are: - firmware loader memory leak fix - firmware loader testing fixes for non-EFI systems - device link locking fixes found by lockdep - kobject_del() bugfix that has been affecting some callers - debugfs minor fix All of these have been in linux-next for a while with no reported issues" * tag 'driver-core-5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: test_firmware: Test platform fw loading on non-EFI systems PM: <linux/device.h>: fix @em_pd kernel-doc warning kobject: Drop unneeded conditional in __kobject_del() driver core: Fix device_pm_lock() locking for device links MAINTAINERS: Add the security document to SECURITY CONTACT driver code: print symbolic error code debugfs: Fix module state check condition kobject: Restore old behaviour of kobject_del(NULL) firmware_loader: fix memory leak for paged buffer
2020-09-13Merge tag 'arm-soc/for-5.9/devicetree-fixes' of ↵Olof Johansson-12/+12
https://github.com/Broadcom/stblinux into arm/fixes This pull request contains Broadcom ARM-based SoCs Device Tree fixes for 5.9, please pull the following: - Florian fixes the Broadcom QSPI controller binding such that the most specific compatible string is the left most one, and all existing in-tree users are updated as well. * tag 'arm-soc/for-5.9/devicetree-fixes' of https://github.com/Broadcom/stblinux: arm64: dts: ns2: Fixed QSPI compatible string ARM: dts: BCM5301X: Fixed QSPI compatible string ARM: dts: NSP: Fixed QSPI compatible string ARM: dts: bcm: HR2: Fixed QSPI compatible string dt-bindings: spi: Fix spi-bcm-qspi compatible ordering Link: https://lore.kernel.org/r/20200909211857.4144718-1-f.fainelli@gmail.com Signed-off-by: Olof Johansson <olof@lixom.net>
2020-09-13Merge tag 'imx-fixes-5.9-2' of ↵Olof Johansson-3/+3
git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/fixes i.MX fixes for 5.9, round 2: - Fix the misspelling of 'interrupts' property in i.MX8MQ TMU DT node. - Correct 'ahb' clock for i.MX8MP SDMA1 in device tree. - Fix pad QSPI1B_SCLK mux mode for UART3 on i.MX6SX. * tag 'imx-fixes-5.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: ARM: dts: imx6sx: fix the pad QSPI1B_SCLK mux mode for uart3 arm64: dts: imx8mp: correct sdma1 clk setting arm64: dts: imx8mq: Fix TMU interrupt property Link: https://lore.kernel.org/r/20200909143844.GA25109@dragon Signed-off-by: Olof Johansson <olof@lixom.net>
2020-09-13Merge tag 'omap-for-v5.9/fixes-rc3' of ↵Olof Johansson-32/+21
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/fixes Fixes for omaps for v5.9-rc cycle Few fixes for omap based devices: - Fix of_clk_get() error handling for omap-iommu - Fix missing audio pinctrl entries for logicpd boards - Fix video for logicpd-som-lv after switch to generic panels - Fix omap5 DSI clocks base * tag 'omap-for-v5.9/fixes-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: dts: omap5: Fix DSI base address and clocks ARM: dts: logicpd-som-lv-baseboard: Fix missing video ARM: dts: logicpd-som-lv-baseboard: Fix broken audio ARM: dts: logicpd-torpedo-baseboard: Fix broken audio ARM: OMAP2+: Fix an IS_ERR() vs NULL check in _get_pwrdm() Link: https://lore.kernel.org/r/pull-1599132064-54898@atomide.com Signed-off-by: Olof Johansson <olof@lixom.net>
2020-09-13Merge tag 'char-misc-5.9-rc5' of ↵Linus Torvalds-92/+172
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char / misc driver fixes from Greg KH: "Here are a number of small driver fixes for 5.9-rc5 Included in here are: - habanalabs driver fixes - interconnect driver fixes - soundwire driver fixes - dyndbg fixes for reported issues, and then reverts to fix it all up to a sane state. - phy driver fixes All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: Revert "dyndbg: accept query terms like file=bar and module=foo" Revert "dyndbg: fix problem parsing format="foo bar"" scripts/tags.sh: exclude tools directory from tags generation video: fbdev: fix OOB read in vga_8planes_imageblit() dyndbg: fix problem parsing format="foo bar" dyndbg: refine export, rename to dynamic_debug_exec_queries() dyndbg: give %3u width in pr-format, cosmetic only interconnect: qcom: Fix small BW votes being truncated to zero soundwire: fix double free of dangling pointer interconnect: Show bandwidth for disabled paths as zero in debugfs habanalabs: fix report of RAZWI initiator coordinates habanalabs: prevent user buff overflow phy: omap-usb2-phy: disable PHY charger detect phy: qcom-qmp: Use correct values for ipq8074 PCIe Gen2 PHY init soundwire: bus: fix typo in comment on INTSTAT registers phy: qualcomm: fix return value check in qcom_ipq806x_usb_phy_probe() phy: qualcomm: fix platform_no_drv_owner.cocci warnings
2020-09-13Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds-81/+180
Pull kvm fixes from Paolo Bonzini: "A bit on the bigger side, mostly due to me being on vacation, then busy, then on parental leave, but there's nothing worrisome. ARM: - Multiple stolen time fixes, with a new capability to match x86 - Fix for hugetlbfs mappings when PUD and PMD are the same level - Fix for hugetlbfs mappings when PTE mappings are enforced (dirty logging, for example) - Fix tracing output of 64bit values x86: - nSVM state restore fixes - Async page fault fixes - Lots of small fixes everywhere" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (25 commits) KVM: emulator: more strict rsm checks. KVM: nSVM: more strict SMM checks when returning to nested guest SVM: nSVM: setup nested msr permission bitmap on nested state load SVM: nSVM: correctly restore GIF on vmexit from nesting after migration x86/kvm: don't forget to ACK async PF IRQ x86/kvm: properly use DEFINE_IDTENTRY_SYSVEC() macro KVM: VMX: Don't freeze guest when event delivery causes an APIC-access exit KVM: SVM: avoid emulation with stale next_rip KVM: x86: always allow writing '0' to MSR_KVM_ASYNC_PF_EN KVM: SVM: Periodically schedule when unregistering regions on destroy KVM: MIPS: Change the definition of kvm type kvm x86/mmu: use KVM_REQ_MMU_SYNC to sync when needed KVM: nVMX: Fix the update value of nested load IA32_PERF_GLOBAL_CTRL control KVM: fix memory leak in kvm_io_bus_unregister_dev() KVM: Check the allocation of pv cpu mask KVM: nVMX: Update VMCS02 when L2 PAE PDPTE updates detected KVM: arm64: Update page shift if stage 2 block mapping not supported KVM: arm64: Fix address truncation in traces KVM: arm64: Do not try to map PUDs when they are folded into PMD arm64/x86: KVM: Introduce steal-time cap ...
2020-09-12Merge tag 'for-linus' of git://github.com/openrisc/linuxLinus Torvalds-13/+32
Pull OpenRISC fixes from Stafford Horne: "Fixes for compile issues pointed out by kbuild and one bug I found in initrd with the 5.9 patches" * tag 'for-linus' of git://github.com/openrisc/linux: openrisc: Fix issue with get_user for 64-bit values openrisc: Fix cache API compile issue when not inlining openrisc: Reserve memblock for initrd
2020-09-12Merge tag 'seccomp-v5.9-rc5' of ↵Linus Torvalds-7/+20
git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull seccomp fixes from Kees Cook: "This fixes a rare race condition in seccomp when using TSYNC and USER_NOTIF together where a memory allocation would not get freed (found by syzkaller, fixed by Tycho). Additionally updates Tycho's MAINTAINERS and .mailmap entries for his new address" * tag 'seccomp-v5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: seccomp: don't leave dangling ->notif if file allocation fails mailmap, MAINTAINERS: move to tycho.pizza seccomp: don't leak memory when filter install races
2020-09-12Merge tag 'libnvdimm-fix-v5.9-rc5' of ↵Linus Torvalds-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm Pull libnvdimm fix from Vishal Verma: "Fix detection of dax support for block devices. Previous fixes in this area, which only affected printing of debug messages, had an incorrect condition for detection of dax. This fix should finally do the right thing" * tag 'libnvdimm-fix-v5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: dax: fix detection of dax support for non-persistent memory block devices
2020-09-12Merge tag 'for-5.9-rc4-tag' of ↵Linus Torvalds-15/+29
git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux Pull btrfs fixes from David Sterba: "A few more fixes: - regression fix for a crash after failed snapshot creation - one more lockep fix: use nofs allocation when allocating missing device - fix reloc tree leak on degraded mount - make some extent buffer alignment checks less strict to mount filesystems created by btrfs-convert" * tag 'for-5.9-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: btrfs: fix NULL pointer dereference after failure to create snapshot btrfs: free data reloc tree on failed mount btrfs: require only sector size alignment for parent eb bytenr btrfs: fix lockdep splat in add_missing_dev
2020-09-12Merge tag '5.9-rc4-smb3-fix' of git://git.samba.org/sfrench/cifs-2.6Linus Torvalds-0/+4
Pull cifs fix from Steve French: "A fix for lookup on DFS link when cifsacl or modefromsid is used" * tag '5.9-rc4-smb3-fix' of git://git.samba.org/sfrench/cifs-2.6: cifs: fix DFS mount with cifsacl/modefromsid
2020-09-12KVM: emulator: more strict rsm checks.Maxim Levitsky-5/+17
Don't ignore return values in rsm_load_state_64/32 to avoid loading invalid state from SMM state area if it was tampered with by the guest. This is primarly intended to avoid letting guest set bits in EFER (like EFER.SVME when nesting is disabled) by manipulating SMM save area. Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com> Message-Id: <20200827171145.374620-8-mlevitsk@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-09-12KVM: nSVM: more strict SMM checks when returning to nested guestMaxim Levitsky-11/+18
* check that guest is 64 bit guest, otherwise the SVM related fields in the smm state area are not defined * If the SMM area indicates that SMM interrupted a running guest, check that EFER.SVME which is also saved in this area is set, otherwise the guest might have tampered with SMM save area, and so indicate emulation failure which should triple fault the guest. * Check that that guest CPUID supports SVM (due to the same issue as above) Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com> Message-Id: <20200827162720.278690-4-mlevitsk@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-09-12SVM: nSVM: setup nested msr permission bitmap on nested state loadMaxim Levitsky-0/+3
This code was missing and was forcing the L2 run with L1's msr permission bitmap Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com> Message-Id: <20200827162720.278690-3-mlevitsk@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-09-12SVM: nSVM: correctly restore GIF on vmexit from nesting after migrationMaxim Levitsky-1/+3
Currently code in svm_set_nested_state copies the current vmcb control area to L1 control area (hsave->control), under assumption that it mostly reflects the defaults that kvm choose, and later qemu overrides these defaults with L2 state using standard KVM interfaces, like KVM_SET_REGS. However nested GIF (which is AMD specific thing) is by default is true, and it is copied to hsave area as such. This alone is not a big deal since on VMexit, GIF is always set to false, regardless of what it was on VM entry. However in nested_svm_vmexit we were first were setting GIF to false, but then we overwrite the control fields with value from the hsave area. (including the nested GIF field itself if GIF virtualization is enabled). Now on normal vm entry this is not a problem, since GIF is usually false prior to normal vm entry, and this is the value that copied to hsave, and then restored, but this is not always the case when the nested state is loaded as explained above. To fix this issue, move svm_set_gif after we restore the L1 control state in nested_svm_vmexit, so that even with wrong GIF in the saved L1 control area, we still clear GIF as the spec says. Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com> Message-Id: <20200827162720.278690-2-mlevitsk@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-09-12openrisc: Fix issue with get_user for 64-bit valuesStafford Horne-12/+21
A build failure was raised by kbuild with the following error. drivers/android/binder.c: Assembler messages: drivers/android/binder.c:3861: Error: unrecognized keyword/register name `l.lwz ?ap,4(r24)' drivers/android/binder.c:3866: Error: unrecognized keyword/register name `l.addi ?ap,r0,0' The issue is with 64-bit get_user() calls on openrisc. I traced this to a problem where in the internally in the get_user macros there is a cast to long __gu_val this causes GCC to think the get_user call is 32-bit. This binder code is really long and GCC allocates register r30, which triggers the issue. The 64-bit get_user asm tries to get the 64-bit pair register, which for r30 overflows the general register names and returns the dummy register ?ap. The fix here is to move the temporary variables into the asm macros. We use a 32-bit __gu_tmp for 32-bit and smaller macro and a 64-bit tmp in the 64-bit macro. The cast in the 64-bit macro has a trick of casting through __typeof__((x)-(x)) which avoids the below warning. This was barrowed from riscv. arch/openrisc/include/asm/uaccess.h:240:8: warning: cast to pointer from integer of different size I tested this in a small unit test to check reading between 64-bit and 32-bit pointers to 64-bit and 32-bit values in all combinations. Also I ran make C=1 to confirm no new sparse warnings came up. It all looks clean to me. Link: https://lore.kernel.org/lkml/202008200453.ohnhqkjQ%25lkp@intel.com/ Signed-off-by: Stafford Horne <shorne@gmail.com> Reviewed-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
2020-09-12x86/kvm: don't forget to ACK async PF IRQVitaly Kuznetsov-0/+2
Merge commit 26d05b368a5c0 ("Merge branch 'kvm-async-pf-int' into HEAD") tried to adapt the new interrupt based async PF mechanism to the newly introduced IDTENTRY magic but unfortunately it missed the fact that DEFINE_IDTENTRY_SYSVEC() doesn't call ack_APIC_irq() on its own and all DEFINE_IDTENTRY_SYSVEC() users have to call it manually. As the result all multi-CPU KVM guest hang on boot when KVM_FEATURE_ASYNC_PF_INT is present. The breakage went unnoticed because no KVM userspace (e.g. QEMU) currently set it (and thus async PF mechanism is currently disabled) but we're about to change that. Fixes: 26d05b368a5c0 ("Merge branch 'kvm-async-pf-int' into HEAD") Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Message-Id: <20200908135350.355053-3-vkuznets@redhat.com> Tested-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-09-12x86/kvm: properly use DEFINE_IDTENTRY_SYSVEC() macroVitaly Kuznetsov-4/+0
DEFINE_IDTENTRY_SYSVEC() already contains irqentry_enter()/ irqentry_exit(). Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Message-Id: <20200908135350.355053-2-vkuznets@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-09-12KVM: VMX: Don't freeze guest when event delivery causes an APIC-access exitWanpeng Li-0/+1
According to SDM 27.2.4, Event delivery causes an APIC-access VM exit. Don't report internal error and freeze guest when event delivery causes an APIC-access exit, it is handleable and the event will be re-injected during the next vmentry. Signed-off-by: Wanpeng Li <wanpengli@tencent.com> Message-Id: <1597827327-25055-2-git-send-email-wanpengli@tencent.com> Cc: stable@vger.kernel.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-09-12KVM: SVM: avoid emulation with stale next_ripWanpeng Li-4/+3
svm->next_rip is reset in svm_vcpu_run() only after calling svm_exit_handlers_fastpath(), which will cause SVM's skip_emulated_instruction() to write a stale RIP. We can move svm_exit_handlers_fastpath towards the end of svm_vcpu_run(). To align VMX with SVM, keep svm_complete_interrupts() close as well. Suggested-by: Sean Christopherson <sean.j.christopherson@intel.com> Cc: Paul K. <kronenpj@kronenpj.dyndns.org> Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: Wanpeng Li <wanpengli@tencent.com> [Also move vmcb_mark_all_clean before any possible write to the VMCB. - Paolo]
2020-09-11Merge tag 'ceph-for-5.9-rc5' of git://github.com/ceph/ceph-clientLinus Torvalds-0/+12
Pull ceph fix from Ilya Dryomov: "Add missing capability checks in rbd, marked for stable" * tag 'ceph-for-5.9-rc5' of git://github.com/ceph/ceph-client: rbd: require global CAP_SYS_ADMIN for mapping and unmapping
2020-09-11Merge branch 'i2c/for-current' of ↵Linus Torvalds-18/+51
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c updates from Wolfram Sang: "Usual driver bugfixes for the I2C subsystem" * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: algo: pca: Reapply i2c bus settings after reset i2c: npcm7xx: Fix timeout calculation misc: eeprom: at24: register nvmem only after eeprom is ready to use
2020-09-11Merge tag 'pm-5.9-rc5' of ↵Linus Torvalds-6/+9
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management fixes from Rafael Wysocki: "These fix three pieces of documentation and add new CPU IDs to the Intel RAPL power capping driver. Specifics: - Add CPU IDs of the TigerLake Desktop, RocketLake and AlderLake chips to the Intel RAPL power capping driver (Zhang Rui). - Add the missing energy model performance domain item to the struct device kerneldoc comment (Randy Dunlap). - Fix the struct powercap_control_type kerneldoc comment to match the actual definition of that structure and add missing item to the struct powercap_zone_ops kerneldoc comment (Amit Kucheria)" * tag 'pm-5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: powercap: make documentation reflect code PM: <linux/device.h>: fix @em_pd kernel-doc warning powercap/intel_rapl: add support for AlderLake powercap/intel_rapl: add support for RocketLake powercap/intel_rapl: add support for TigerLake Desktop
2020-09-11Merge tag 'block-5.9-2020-09-11' of git://git.kernel.dk/linux-blockLinus Torvalds-25/+16
Pull block fixes from Jens Axboe: - Fix a regression in bdev partition locking (Christoph) - NVMe pull request from Christoph: - cancel async events before freeing them (David Milburn) - revert a broken race fix (James Smart) - fix command processing during resets (Sagi Grimberg) - Fix a kyber crash with requeued flushes (Omar) - Fix __bio_try_merge_page() same_page error for no merging (Ritesh) * tag 'block-5.9-2020-09-11' of git://git.kernel.dk/linux-block: block: Set same_page to false in __bio_try_merge_page if ret is false nvme-fabrics: allow to queue requests for live queues block: only call sched requeue_request() for scheduled requests nvme-tcp: cancel async events before freeing event struct nvme-rdma: cancel async events before freeing event struct nvme-fc: cancel async events before freeing event struct nvme: Revert: Fix controller creation races with teardown flow block: restore a specific error code in bdev_del_partition
2020-09-11Merge tag 'spi-fix-v5.9-rc4' of ↵Linus Torvalds-8/+36
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi Pull spi fixes from Mark Brown: "There's some driver specific fixes here plus one core fix for memory leaks that could be triggered by a potential race condition when cleaning up after we have split transfers to fit into what the controller can support" * tag 'spi-fix-v5.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: spi: stm32: fix pm_runtime_get_sync() error checking spi: Fix memory leak on splited transfers spi: spi-cadence-quadspi: Fix mapping of buffers for DMA reads spi: stm32: Rate-limit the 'Communication suspended' message spi: spi-loopback-test: Fix out-of-bounds read spi: spi-cadence-quadspi: Populate get_name() interface MAINTAINERS: add myself as maintainer for spi-fsl-dspi driver
2020-09-11Merge tag 'regulator-fix-v5.9-rc4' of ↵Linus Torvalds-85/+101
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator Pull regulator fixes from Mark Brown: "The biggest set of fixes here is those from Michał Mirosław fixing some locking issues with coupled regulators that are triggered in cases where a coupled regulator is used by a device involved in fs_reclaim like eMMC storage. These are relatively serious for the affected systems, though the circumstances where they trigger are very rare" * tag 'regulator-fix-v5.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: regulator: pwm: Fix machine constraints application regulator: core: Fix slab-out-of-bounds in regulator_unlock_recursive() regulator: remove superfluous lock in regulator_resolve_coupling() regulator: cleanup regulator_ena_gpio_free() regulator: plug of_node leak in regulator_register()'s error path regulator: push allocation in set_consumer_device_supply() out of lock regulator: push allocations in create_regulator() outside of lock regulator: push allocation in regulator_ena_gpio_request() out of lock regulator: push allocation in regulator_init_coupling() outside of lock regulator: fix spelling mistake "Cant" -> "Can't" regulator: cros-ec-regulator: Add NULL test for devm_kmemdup call
2020-09-11KVM: x86: always allow writing '0' to MSR_KVM_ASYNC_PF_ENVitaly Kuznetsov-1/+1
Even without in-kernel LAPIC we should allow writing '0' to MSR_KVM_ASYNC_PF_EN as we're not enabling the mechanism. In particular, QEMU with 'kernel-irqchip=off' fails to start a guest with qemu-system-x86_64: error: failed to set MSR 0x4b564d02 to 0x0 Fixes: 9d3c447c72fb2 ("KVM: X86: Fix async pf caused null-ptr-deref") Reported-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Message-Id: <20200911093147.484565-1-vkuznets@redhat.com> [Actually commit the version proposed by Sean Christopherson. - Paolo] Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-09-11KVM: SVM: Periodically schedule when unregistering regions on destroyDavid Rientjes-0/+1
There may be many encrypted regions that need to be unregistered when a SEV VM is destroyed. This can lead to soft lockups. For example, on a host running 4.15: watchdog: BUG: soft lockup - CPU#206 stuck for 11s! [t_virtual_machi:194348] CPU: 206 PID: 194348 Comm: t_virtual_machi RIP: 0010:free_unref_page_list+0x105/0x170 ... Call Trace: [<0>] release_pages+0x159/0x3d0 [<0>] sev_unpin_memory+0x2c/0x50 [kvm_amd] [<0>] __unregister_enc_region_locked+0x2f/0x70 [kvm_amd] [<0>] svm_vm_destroy+0xa9/0x200 [kvm_amd] [<0>] kvm_arch_destroy_vm+0x47/0x200 [<0>] kvm_put_kvm+0x1a8/0x2f0 [<0>] kvm_vm_release+0x25/0x30 [<0>] do_exit+0x335/0xc10 [<0>] do_group_exit+0x3f/0xa0 [<0>] get_signal+0x1bc/0x670 [<0>] do_signal+0x31/0x130 Although the CLFLUSH is no longer issued on every encrypted region to be unregistered, there are no other changes that can prevent soft lockups for very large SEV VMs in the latest kernel. Periodically schedule if necessary. This still holds kvm->lock across the resched, but since this only happens when the VM is destroyed this is assumed to be acceptable. Signed-off-by: David Rientjes <rientjes@google.com> Message-Id: <alpine.DEB.2.23.453.2008251255240.2987727@chino.kir.corp.google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-09-11KVM: MIPS: Change the definition of kvm typeHuacai Chen-2/+5
MIPS defines two kvm types: #define KVM_VM_MIPS_TE 0 #define KVM_VM_MIPS_VZ 1 In Documentation/virt/kvm/api.rst it is said that "You probably want to use 0 as machine type", which implies that type 0 be the "automatic" or "default" type. And, in user-space libvirt use the null-machine (with type 0) to detect the kvm capability, which returns "KVM not supported" on a VZ platform. I try to fix it in QEMU but it is ugly: https://lists.nongnu.org/archive/html/qemu-devel/2020-08/msg05629.html And Thomas Huth suggests me to change the definition of kvm type: https://lists.nongnu.org/archive/html/qemu-devel/2020-09/msg03281.html So I define like this: #define KVM_VM_MIPS_AUTO 0 #define KVM_VM_MIPS_VZ 1 #define KVM_VM_MIPS_TE 2 Since VZ and TE cannot co-exists, using type 0 on a TE platform will still return success (so old user-space tools have no problems on new kernels); the advantage is that using type 0 on a VZ platform will not return failure. So, the only problem is "new user-space tools use type 2 on old kernels", but if we treat this as a kernel bug, we can backport this patch to old stable kernels. Signed-off-by: Huacai Chen <chenhc@lemote.com> Message-Id: <1599734031-28746-1-git-send-email-chenhc@lemote.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-09-11Merge tag 'mmc-v5.9-rc4' of ↵Linus Torvalds-63/+123
git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc Pull MMC fixes from Ulf Hansson: "MMC core: - sdio: Restore ~20% performance drop for SDHCI drivers, by using mmc_pre_req() and mmc_post_req() for SDIO requests. MMC host: - sdhci-of-esdhc: Fix support for erratum eSDHC7 - mmc_spi: Allow the driver to be built when CONFIG_HAS_DMA is unset - sdhci-msm: Use retries to fix tuning - sdhci-acpi: Fix resume for eMMC HS400 mode" * tag 'mmc-v5.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: mmc: sdio: Use mmc_pre_req() / mmc_post_req() mmc: sdhci-of-esdhc: Don't walk device-tree on every interrupt mmc: mmc_spi: Allow the driver to be built when CONFIG_HAS_DMA is unset mmc: sdhci-msm: Add retries when all tuning phases are found valid mmc: sdhci-acpi: Clear amd_sdhci_host on reset
2020-09-11kvm x86/mmu: use KVM_REQ_MMU_SYNC to sync when neededLai Jiangshan-1/+1
When kvm_mmu_get_page() gets a page with unsynced children, the spt pagetable is unsynchronized with the guest pagetable. But the guest might not issue a "flush" operation on it when the pagetable entry is changed from zero or other cases. The hypervisor has the responsibility to synchronize the pagetables. KVM behaved as above for many years, But commit 8c8560b83390 ("KVM: x86/mmu: Use KVM_REQ_TLB_FLUSH_CURRENT for MMU specific flushes") inadvertently included a line of code to change it without giving any reason in the changelog. It is clear that the commit's intention was to change KVM_REQ_TLB_FLUSH -> KVM_REQ_TLB_FLUSH_CURRENT, so we don't needlessly flush other contexts; however, one of the hunks changed a nearby KVM_REQ_MMU_SYNC instead. This patch changes it back. Link: https://lore.kernel.org/lkml/20200320212833.3507-26-sean.j.christopherson@intel.com/ Cc: Sean Christopherson <sean.j.christopherson@intel.com> Cc: Vitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: Lai Jiangshan <laijs@linux.alibaba.com> Message-Id: <20200902135421.31158-1-jiangshanlai@gmail.com> fixes: 8c8560b83390 ("KVM: x86/mmu: Use KVM_REQ_TLB_FLUSH_CURRENT for MMU specific flushes") Cc: stable@vger.kernel.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-09-11KVM: nVMX: Fix the update value of nested load IA32_PERF_GLOBAL_CTRL controlChenyi Qiang-1/+1
A minor fix for the update of VM_EXIT_LOAD_IA32_PERF_GLOBAL_CTRL field in exit_ctls_high. Fixes: 03a8871add95 ("KVM: nVMX: Expose load IA32_PERF_GLOBAL_CTRL VM-{Entry,Exit} control") Signed-off-by: Chenyi Qiang <chenyi.qiang@intel.com> Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com> Message-Id: <20200828085622.8365-5-chenyi.qiang@intel.com> Reviewed-by: Jim Mattson <jmattson@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-09-11KVM: fix memory leak in kvm_io_bus_unregister_dev()Rustam Kovhaev-9/+12
when kmalloc() fails in kvm_io_bus_unregister_dev(), before removing the bus, we should iterate over all other devices linked to it and call kvm_iodevice_destructor() for them Fixes: 90db10434b16 ("KVM: kvm_io_bus_unregister_dev() should never fail") Cc: stable@vger.kernel.org Reported-and-tested-by: syzbot+f196caa45793d6374707@syzkaller.appspotmail.com Link: https://syzkaller.appspot.com/bug?extid=f196caa45793d6374707 Signed-off-by: Rustam Kovhaev <rkovhaev@gmail.com> Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com> Message-Id: <20200907185535.233114-1-rkovhaev@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-09-11KVM: Check the allocation of pv cpu maskHaiwei Li-3/+19
check the allocation of per-cpu __pv_cpu_mask. Initialize ops only when successful. Signed-off-by: Haiwei Li <lihaiwei@tencent.com> Message-Id: <d59f05df-e6d3-3d31-a036-cc25a2b2f33f@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-09-11KVM: nVMX: Update VMCS02 when L2 PAE PDPTE updates detectedPeter Shier-2/+11
When L2 uses PAE, L0 intercepts of L2 writes to CR0/CR3/CR4 call load_pdptrs to read the possibly updated PDPTEs from the guest physical address referenced by CR3. It loads them into vcpu->arch.walk_mmu->pdptrs and sets VCPU_EXREG_PDPTR in vcpu->arch.regs_dirty. At the subsequent assumed reentry into L2, the mmu will call vmx_load_mmu_pgd which calls ept_load_pdptrs. ept_load_pdptrs sees VCPU_EXREG_PDPTR set in vcpu->arch.regs_dirty and loads VMCS02.GUEST_PDPTRn from vcpu->arch.walk_mmu->pdptrs[]. This all works if the L2 CRn write intercept always resumes L2. The resume path calls vmx_check_nested_events which checks for exceptions, MTF, and expired VMX preemption timers. If vmx_check_nested_events finds any of these conditions pending it will reflect the corresponding exit into L1. Live migration at this point would also cause a missed immediate reentry into L2. After L1 exits, vmx_vcpu_run calls vmx_register_cache_reset which clears VCPU_EXREG_PDPTR in vcpu->arch.regs_dirty. When L2 next resumes, ept_load_pdptrs finds VCPU_EXREG_PDPTR clear in vcpu->arch.regs_dirty and does not load VMCS02.GUEST_PDPTRn from vcpu->arch.walk_mmu->pdptrs[]. prepare_vmcs02 will then load VMCS02.GUEST_PDPTRn from vmcs12->pdptr0/1/2/3 which contain the stale values stored at last L2 exit. A repro of this bug showed L2 entering triple fault immediately due to the bad VMCS02.GUEST_PDPTRn values. When L2 is in PAE paging mode add a call to ept_load_pdptrs before leaving L2. This will update VMCS02.GUEST_PDPTRn if they are dirty in vcpu->arch.walk_mmu->pdptrs[]. Tested: kvm-unit-tests with new directed test: vmx_mtf_pdpte_test. Verified that test fails without the fix. Also ran Google internal VMM with an Ubuntu 16.04 4.4.0-83 guest running a custom hypervisor with a 32-bit Windows XP L2 guest using PAE. Prior to fix would repro readily. Ran 14 simultaneous L2s for 140 iterations with no failures. Signed-off-by: Peter Shier <pshier@google.com> Reviewed-by: Jim Mattson <jmattson@google.com> Message-Id: <20200820230545.2411347-1-pshier@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-09-11Merge tag 'kvmarm-fixes-5.9-1' of ↵Paolo Bonzini-18837/+52278
git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD KVM/arm64 fixes for Linux 5.9, take #1 - Multiple stolen time fixes, with a new capability to match x86 - Fix for hugetlbfs mappings when PUD and PMD are the same level - Fix for hugetlbfs mappings when PTE mappings are enforced (dirty logging, for example) - Fix tracing output of 64bit values
2020-09-11Merge tag 'drm-fixes-2020-09-11' of git://anongit.freedesktop.org/drm/drmLinus Torvalds-36/+77
Pull drm fixes from Dave Airlie: "Regular fixes, not much a major amount. One thing though is Laurent fixed some Kconfig issues, and I'm carrying the rapidio kconfig change so the drm one for xlnx driver works. He hadn't got a response from rapidio maintainers. Otherwise, virtio, sun4i, tve200, ingenic have some fixes, one audio fix for i915 and a core docs fix. kconfig: - rapidio/xlnx kconfig fix core: - Documentation fix i915: - audio regression fix virtio: - Fix double free in virtio - Fix virtio unblank - Remove output->enabled from virtio, as it should use crtc_state sun4i: - Add missing put_device in sun4i, and other fixes - Handle sun4i alpha on lowest plane correctly tv200: - Fix tve200 enable/disable ingenic - Small ingenic fixes" * tag 'drm-fixes-2020-09-11' of git://anongit.freedesktop.org/drm/drm: drm/i915: fix regression leading to display audio probe failure on GLK drm: xlnx: dpsub: Fix DMADEVICES Kconfig dependency rapidio: Replace 'select' DMAENGINES 'with depends on' drm/virtio: drop virtio_gpu_output->enabled drm/sun4i: backend: Disable alpha on the lowest plane on the A20 drm/sun4i: backend: Support alpha property on lowest plane drm/sun4i: Fix DE2 YVU handling drm/tve200: Stabilize enable/disable dma-buf: fence-chain: Document missing dma_fence_chain_init() parameter in kerneldoc dma-buf: Fix kerneldoc of dma_buf_set_name() drm/virtio: fix unblank Documentation: fix dma-buf.rst underline length warning drm/sun4i: Fix dsi dcs long write function drm/ingenic: Fix driver not probing when IPU port is missing drm/ingenic: Fix leak of device_node pointer drm/sun4i: add missing put_device() call in sun8i_r40_tcon_tv_set_mux() drm/virtio: Revert "drm/virtio: Call the right shmem helpers"
2020-09-11Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdmaLinus Torvalds-106/+168
Pull rdma fixes from Jason Gunthorpe: "A number of driver bug fixes and a few recent regressions: - Several bug fixes for bnxt_re. Crashing, incorrect data reported, and corruption on new HW - Memory leak and crash in rxe - Fix sysfs corruption in rxe if the netdev name is too long - Fix a crash on error unwind in the new cq_pool code - Fix kobject panics in rtrs by working device lifetime properly - Fix a data corruption bug in iser target related to misaligned buffers" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: IB/isert: Fix unaligned immediate-data handling RDMA/rtrs-srv: Set .release function for rtrs srv device during device init RDMA/bnxt_re: Remove set but not used variable 'qplib_ctx' RDMA/core: Fix reported speed and width RDMA/core: Fix unsafe linked list traversal after failing to allocate CQ RDMA/bnxt_re: Remove the qp from list only if the qp destroy succeeds RDMA/bnxt_re: Fix driver crash on unaligned PSN entry address RDMA/bnxt_re: Restrict the max_gids to 256 RDMA/bnxt_re: Static NQ depth allocation RDMA/bnxt_re: Fix the qp table indexing RDMA/bnxt_re: Do not report transparent vlan from QP1 RDMA/mlx4: Read pkey table length instead of hardcoded value RDMA/rxe: Fix panic when calling kmem_cache_create() RDMA/rxe: Fix memleak in rxe_mem_init_user RDMA/rxe: Fix the parent sysfs read when the interface has 15 chars RDMA/rtrs-srv: Replace device_register with device_initialize and device_add
2020-09-11gcov: add support for GCC 10.1Peter Oberparleiter-2/+3
Using gcov to collect coverage data for kernels compiled with GCC 10.1 causes random malfunctions and kernel crashes. This is the result of a changed GCOV_COUNTERS value in GCC 10.1 that causes a mismatch between the layout of the gcov_info structure created by GCC profiling code and the related structure used by the kernel. Fix this by updating the in-kernel GCOV_COUNTERS value. Also re-enable config GCOV_KERNEL for use with GCC 10. Reported-by: Colin Ian King <colin.king@canonical.com> Reported-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Peter Oberparleiter <oberpar@linux.ibm.com> Tested-by: Leon Romanovsky <leonro@nvidia.com> Tested-and-Acked-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-09-11Merge branch 'powercap'Rafael J. Wysocki-6/+8
* powercap: powercap: make documentation reflect code powercap/intel_rapl: add support for AlderLake powercap/intel_rapl: add support for RocketLake powercap/intel_rapl: add support for TigerLake Desktop
2020-09-11Merge tag 'drm-misc-fixes-2020-09-09' of ↵Dave Airlie-29/+71
git://anongit.freedesktop.org/drm/drm-misc into drm-fixes drm-misc-fixes for v5.9-rc5: - Fix double free in virtio. - Add missing put_device in sun4i, and other fixes. - Small ingenic fixes. - Handle sun4i alpha on lowest plane correctly. - Remove output->enabled from virtio, as it should use crtc_state. - Fix tve200 enable/disable. - Documentation fix. - Fix virtio unblank. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/478b49d1-b1b3-c983-7056-8a89249be435@mblankhorst.nl
2020-09-11Merge tag 'drm-intel-fixes-2020-09-10' of ↵Dave Airlie-6/+4
git://anongit.freedesktop.org/drm/drm-intel into drm-fixes drm/i915 fixes for v5.9-rc5: - Fix regression leading to audio probe failure Signed-off-by: Dave Airlie <airlied@redhat.com> From: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/875z8m2hss.fsf@intel.com
2020-09-10Merge tag 'f2fs-for-5.9-rc5' of ↵Linus Torvalds-4/+10
git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs Pull f2fs fixes from Jaegeuk Kim: "Small bug fixes for: - SMR drive fix - infinite loop when building free node ids - EOF at DIO read" * tag 'f2fs-for-5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: f2fs: Return EOF on unaligned end of file DIO read f2fs: fix indefinite loop scanning for free nid f2fs: Fix type of section block count variables
2020-09-10powercap: make documentation reflect codeAmit Kucheria-6/+5
Fix up the documentation of the struct powercap_control_type members to match the code. Also fixup stray whitespace. Signed-off-by: Amit Kucheria <amitk@kernel.org> [ rjw: Changelog edits ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>