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2021-01-26VMCI: Enforce queuepair max size for IOCTL_VMCI_QUEUEPAIR_ALLOCJorgen Hansen2-6/+10
When create the VMCI queue pair tracking data structures on the host side, the IOCTL for creating the VMCI queue pair didn't validate the queue pair size parameters. This change adds checks for this. This avoids a memory allocation issue in qp_host_alloc_queue, as reported by nslusarek@gmx.net. The check in qp_host_alloc_queue has also been updated to enforce the maximum queue pair size as defined by VMCI_MAX_GUEST_QP_MEMORY. The fix has been verified using sample code supplied by nslusarek@gmx.net. Reported-by: nslusarek@gmx.net Reviewed-by: Vishnu Dasa <vdasa@vmware.com> Signed-off-by: Jorgen Hansen <jhansen@vmware.com> Link: https://lore.kernel.org/r/1611160420-30573-1-git-send-email-jhansen@vmware.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-26VMCI: Use set_page_dirty_lock() when unregistering guest memoryJorgen Hansen1-1/+1
When the VMCI host support releases guest memory in the case where the VM was killed, the pinned guest pages aren't locked. Use set_page_dirty_lock() instead of set_page_dirty(). Testing done: Killed VM while having an active VMCI based vSocket connection and observed warning from ext4. With this fix, no warning was observed. Ran various vSocket tests without issues. Fixes: 06164d2b72aa ("VMCI: queue pairs implementation.") Reviewed-by: Vishnu Dasa <vdasa@vmware.com> Signed-off-by: Jorgen Hansen <jhansen@vmware.com> Link: https://lore.kernel.org/r/1611160360-30299-1-git-send-email-jhansen@vmware.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-26VMCI: Stop log spew when qp allocation isn't possibleJorgen Hansen1-1/+1
VMCI queue pair allocation is disabled, if a VM is in FT mode. In these cases, VMware Tools may still once in a while attempt to create a vSocket stream connection, resulting in multiple warnings in the kernel logs. Therefore downgrade the error log to a debug log. Reviewed-by: Vishnu Dasa <vdasa@vmware.com> Signed-off-by: Jorgen Hansen <jhansen@vmware.com> Link: https://lore.kernel.org/r/1611160340-30158-1-git-send-email-jhansen@vmware.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-26misc/vmw_vmci: fix typomateng1-1/+1
change 'addres' to 'address' Signed-off-by: mateng <mateng@yulong.com> Link: https://lore.kernel.org/r/20210126084010.1941-1-ayowoe@163.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-25misc: bcm-vk: add ttyVK supportScott Branden4-2/+392
Add ttyVK support to driver to allow console access to VK card from host. Device node will be in the follow form /dev/bcm-vk.x_ttyVKy where: x is the instance of the VK card y is the tty device number on the VK card Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Scott Branden <scott.branden@broadcom.com> Link: https://lore.kernel.org/r/20210120175827.14820-14-scott.branden@broadcom.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-25MAINTAINERS: bcm-vk: add maintainer for Broadcom VK DriverScott Branden1-0/+7
Add maintainer entry for new Broadcom VK Driver Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Scott Branden <scott.branden@broadcom.com> Link: https://lore.kernel.org/r/20210120175827.14820-13-scott.branden@broadcom.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-25misc: bcm-vk: add mmap function for exposing BAR2Scott Branden1-0/+24
Add mmap function that allows host application to open up BAR2 memory for remote spooling out messages from the VK logger. Co-developed-by: Desmond Yan <desmond.yan@broadcom.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Desmond Yan <desmond.yan@broadcom.com> Signed-off-by: Scott Branden <scott.branden@broadcom.com> Link: https://lore.kernel.org/r/20210120175827.14820-12-scott.branden@broadcom.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-25misc: bcm-vk: reset_pid supportScott Branden3-8/+191
Add reset support via ioctl. Kill user processes that are open when VK card is reset. If a particular PID has issued the reset request do not kill that process as it issued the ioctl. Co-developed-by: Desmond Yan <desmond.yan@broadcom.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Desmond Yan <desmond.yan@broadcom.com> Signed-off-by: Scott Branden <scott.branden@broadcom.com> Link: https://lore.kernel.org/r/20210120175827.14820-11-scott.branden@broadcom.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-25misc: bcm-vk: add VK messaging supportScott Branden7-3/+2087
Add message support in order to be able to communicate to VK card via message queues. This info is used for debug purposes via collection of logs via direct read of BAR space and by sysfs access (in a follow on commit). Co-developed-by: Desmond Yan <desmond.yan@broadcom.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Desmond Yan <desmond.yan@broadcom.com> Signed-off-by: Scott Branden <scott.branden@broadcom.com> Link: https://lore.kernel.org/r/20210120175827.14820-10-scott.branden@broadcom.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-25misc: bcm-vk: add get_card_info, peerlog_info, and proc_mon_infoScott Branden2-0/+165
Add support to get card_info (details about card), peerlog_info (to get details of peerlog on card), and proc_mon_info (process monitoring on card). This info is used for collection of logs via direct read of BAR space and by sysfs access (in a follow on commit). Co-developed-by: Desmond Yan <desmond.yan@broadcom.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Desmond Yan <desmond.yan@broadcom.com> Signed-off-by: Scott Branden <scott.branden@broadcom.com> Link: https://lore.kernel.org/r/20210120175827.14820-9-scott.branden@broadcom.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-25misc: bcm-vk: add ioctl load_imageScott Branden2-0/+98
Add ioctl support to issue load_image operation to VK card. Co-developed-by: Desmond Yan <desmond.yan@broadcom.com> Co-developed-by: James Hu <james.hu@broadcom.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Desmond Yan <desmond.yan@broadcom.com> Signed-off-by: James Hu <james.hu@broadcom.com> Signed-off-by: Scott Branden <scott.branden@broadcom.com> Link: https://lore.kernel.org/r/20210120175827.14820-8-scott.branden@broadcom.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-25misc: bcm-vk: add open/releaseScott Branden5-1/+199
Add open/release to replace private data with context for other methods to use. Reason for the context is because it is allowed for multiple sessions to open sysfs. For each file open, when upper layer queries the response, only those that are tied to a specified open should be returned. Co-developed-by: Desmond Yan <desmond.yan@broadcom.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Desmond Yan <desmond.yan@broadcom.com> Signed-off-by: Scott Branden <scott.branden@broadcom.com> Link: https://lore.kernel.org/r/20210120175827.14820-7-scott.branden@broadcom.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-25misc: bcm-vk: add triggers when host panic or reboots to notify cardScott Branden2-1/+30
Pass down an interrupt to card in case of panic or reboot so that card can take appropriate action to perform a clean reset. Uses kernel notifier block either directly (register on panic list), or implicitly (add shutdown method for PCI device). Co-developed-by: Desmond Yan <desmond.yan@broadcom.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Desmond Yan <desmond.yan@broadcom.com> Signed-off-by: Scott Branden <scott.branden@broadcom.com> Link: https://lore.kernel.org/r/20210120175827.14820-6-scott.branden@broadcom.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-25misc: bcm-vk: add misc device to Broadcom VK driverScott Branden2-1/+37
Add misc device base support to create and remove devnode. Additional misc functions for open/read/write/release/ioctl/sysfs, etc will be added in follow on commits to allow for individual review. Co-developed-by: Desmond Yan <desmond.yan@broadcom.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Desmond Yan <desmond.yan@broadcom.com> Signed-off-by: Scott Branden <scott.branden@broadcom.com> Link: https://lore.kernel.org/r/20210120175827.14820-5-scott.branden@broadcom.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-25misc: bcm-vk: add autoload supportScott Branden2-0/+973
Add support to load and boot images on card automatically. The kernel module parameter auto_load can be passed in as false to disable such support on probe. As well, nr_scratch_pages can be specified to allocate more or less scratch memory on init as needed for desired card operation. Co-developed-by: Desmond Yan <desmond.yan@broadcom.com> Co-developed-by: James Hu <james.hu@broadcom.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Desmond Yan <desmond.yan@broadcom.com> Signed-off-by: James Hu <james.hu@broadcom.com> Signed-off-by: Scott Branden <scott.branden@broadcom.com> Link: https://lore.kernel.org/r/20210120175827.14820-4-scott.branden@broadcom.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-25misc: bcm-vk: add Broadcom VK driverScott Branden6-0/+197
Add initial version of Broadcom VK driver to enumerate PCI device IDs of Valkyrie and Viper device IDs. VK based cards provide real-time high performance, high throughput, low latency offload compute engine operations. They are used for multiple parallel offload tasks as: audio, video and image processing and crypto operations. Further commits add additional features to driver beyond probe/remove. Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Scott Branden <scott.branden@broadcom.com> Link: https://lore.kernel.org/r/20210120175827.14820-3-scott.branden@broadcom.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-25bcm-vk: add bcm_vk UAPIScott Branden1-0/+84
Add user space api for bcm-vk driver. Provide ioctl api to load images and issue reset command to card. FW status registers in PCI BAR space also defined as part of API so that user space is able to interpret these memory locations as needed via direct PCIe access. Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Scott Branden <scott.branden@broadcom.com> Link: https://lore.kernel.org/r/20210120175827.14820-2-scott.branden@broadcom.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-25Merge 5.11-rc5 into char-misc-nextGreg Kroah-Hartman641-3370/+6909
We need the fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-25Linux 5.11-rc5Linus Torvalds1-1/+1
2021-01-25Merge tag 'sh-for-5.11' of git://git.libc.org/linux-shLinus Torvalds17-77/+17
Pull arch/sh updates from Rich Felker: "Cleanup and warning fixes" * tag 'sh-for-5.11' of git://git.libc.org/linux-sh: sh/intc: Restore devm_ioremap() alignment sh: mach-sh03: remove duplicate include arch: sh: remove duplicate include sh: Drop ARCH_NR_GPIOS definition sh: Remove unused HAVE_COPY_THREAD_TLS macro sh: remove CONFIG_IDE from most defconfig sh: mm: Convert to DEFINE_SHOW_ATTRIBUTE sh: intc: Convert to DEFINE_SHOW_ATTRIBUTE arch/sh: hyphenate Non-Uniform in Kconfig prompt sh: dma: fix kconfig dependency for G2_DMA
2021-01-24Merge tag 'io_uring-5.11-2021-01-24' of git://git.kernel.dk/linux-blockLinus Torvalds1-20/+47
Pull io_uring fixes from Jens Axboe: "Still need a final cancelation fix that isn't quite done done, expected in the next day or two. That said, this contains: - Wakeup fix for IOPOLL requests - SQPOLL split close op handling fix - Ensure that any use of io_uring fd itself is marked as inflight - Short non-regular file read fix (Pavel) - Fix up bad false positive warning (Pavel) - SQPOLL fixes (Pavel) - In-flight removal fix (Pavel)" * tag 'io_uring-5.11-2021-01-24' of git://git.kernel.dk/linux-block: io_uring: account io_uring internal files as REQ_F_INFLIGHT io_uring: fix sleeping under spin in __io_clean_op io_uring: fix short read retries for non-reg files io_uring: fix SQPOLL IORING_OP_CLOSE cancelation state io_uring: fix skipping disabling sqo on exec io_uring: fix uring_flush in exit_files() warning io_uring: fix false positive sqo warning on flush io_uring: iopoll requests should also wake task ->in_idle state
2021-01-24Merge tag 'block-5.11-2021-01-24' of git://git.kernel.dk/linux-blockLinus Torvalds8-52/+132
Pull block fixes from Jens Axboe: - NVMe pull request from Christoph: - fix a status code in nvmet (Chaitanya Kulkarni) - avoid double completions in nvme-rdma/nvme-tcp (Chao Leng) - fix the CMB support to cope with NVMe 1.4 controllers (Klaus Jensen) - fix PRINFO handling in the passthrough ioctl (Revanth Rajashekar) - fix a double DMA unmap in nvme-pci - lightnvm error path leak fix (Pan) - MD pull request from Song: - Flush request fix (Xiao) * tag 'block-5.11-2021-01-24' of git://git.kernel.dk/linux-block: lightnvm: fix memory leak when submit fails nvme-pci: fix error unwind in nvme_map_data nvme-pci: refactor nvme_unmap_data md: Set prev_flush_start and flush_bio in an atomic way nvmet: set right status on error in id-ns handler nvme-pci: allow use of cmb on v1.4 controllers nvme-tcp: avoid request double completion for concurrent nvme_tcp_timeout nvme-rdma: avoid request double completion for concurrent nvme_rdma_timeout nvme: check the PRINFO bit before deciding the host buffer length
2021-01-24Merge branch 'akpm' (patches from Andrew)Linus Torvalds16-148/+168
Merge misc fixes from Andrew Morton: "18 patches. Subsystems affected by this patch series: mm (pagealloc, memcg, kasan, memory-failure, and highmem), ubsan, proc, and MAINTAINERS" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: MAINTAINERS: add a couple more files to the Clang/LLVM section proc_sysctl: fix oops caused by incorrect command parameters powerpc/mm/highmem: use __set_pte_at() for kmap_local() mips/mm/highmem: use set_pte() for kmap_local() mm/highmem: prepare for overriding set_pte_at() sparc/mm/highmem: flush cache and TLB mm: fix page reference leak in soft_offline_page() ubsan: disable unsigned-overflow check for i386 kasan, mm: fix resetting page_alloc tags for HW_TAGS kasan, mm: fix conflicts with init_on_alloc/free kasan: fix HW_TAGS boot parameters kasan: fix incorrect arguments passing in kasan_add_zero_shadow kasan: fix unaligned address is unhandled in kasan_remove_zero_shadow mm: fix numa stats for thp migration mm: memcg: fix memcg file_dirty numa stat mm: memcg/slab: optimize objcg stock draining mm: fix initialization of struct page for holes in memory layout x86/setup: don't remove E820_TYPE_RAM for pfn 0
2021-01-24Merge tag 'char-misc-5.11-rc5' of ↵Linus Torvalds15-21/+75
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver fixes from Greg KH: "Here are some small char/misc driver fixes for 5.11-rc5: - habanalabs driver fixes - phy driver fixes - hwtracing driver fixes - rtsx cardreader driver fix All of these have been in linux-next with no reported issues" * tag 'char-misc-5.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: misc: rtsx: init value of aspm_enabled habanalabs: disable FW events on device removal habanalabs: fix backward compatibility of idle check habanalabs: zero pci counters packet before submit to FW intel_th: pci: Add Alder Lake-P support stm class: Fix module init return on allocation failure habanalabs: prevent soft lockup during unmap habanalabs: fix reset process in case of failures habanalabs: fix dma_addr passed to dma_mmap_coherent phy: mediatek: allow compile-testing the dsi phy phy: cpcap-usb: Fix warning for missing regulator_disable PHY: Ingenic: fix unconditional build of phy-ingenic-usb
2021-01-24Merge tag 'driver-core-5.11-rc5' of ↵Linus Torvalds7-67/+77
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 fixes for 5.11-rc5 that resolve some reported problems: - revert of a -rc1 patch that was causing problems with some machines - device link device name collision problem fix (busses only have to name devices unique to their bus, not unique to all busses) - kernfs splice bugfixes to resolve firmware loading problems for Qualcomm systems. - other tiny driver core fixes for minor issues reported. All of these have been in linux-next with no reported problems" * tag 'driver-core-5.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: driver core: Fix device link device name collision driver core: Extend device_is_dependent() kernfs: wire up ->splice_read and ->splice_write kernfs: implement ->write_iter kernfs: implement ->read_iter Revert "driver core: Reorder devices on successful probe" Driver core: platform: Add extra error check in devm_platform_get_irqs_affinity() drivers core: Free dma_range_map when driver probe failed
2021-01-24Merge tag 'staging-5.11-rc5' of ↵Linus Torvalds7-60/+31
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging/IIO driver fixes from Greg KH: "Here are some IIO driver fixes for 5.11-rc5 to resolve some reported problems. Nothing major, just a few small fixes, all of these have been in linux-next for a while and full details are in the shortlog" * tag 'staging-5.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: iio: sx9310: Fix semtech,avg-pos-strength setting when > 16 iio: common: st_sensors: fix possible infinite loop in st_sensors_irq_thread iio: ad5504: Fix setting power-down state counter:ti-eqep: remove floor drivers: iio: temperature: Add delay after the addressed reset command in mlx90632.c iio: adc: ti_am335x_adc: remove omitted iio_kfifo_free() dt-bindings: iio: accel: bma255: Fix bmc150/bmi055 compatible iio: sx9310: Off by one in sx9310_read_thresh()
2021-01-24Merge tag 'tty-5.11-rc5' of ↵Linus Torvalds2-24/+37
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty/serial fixes from Greg KH: "Here are three small tty/serial fixes for 5.11-rc5 to resolve reported problems: - two patches to fix up writing to ttys with splice - mvebu-uart driver fix for reported problem All of these have been in linux-next with no reported problems" * tag 'tty-5.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: tty: fix up hung_up_tty_write() conversion tty: implement write_iter serial: mvebu-uart: fix tx lost characters at power off
2021-01-24Merge tag 'usb-5.11-rc5' of ↵Linus Torvalds11-23/+61
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB fixes from Greg KH: "Here are some small USB driver fixes for 5.11-rc5. They resolve: - xhci issues for some reported problems - ehci driver issue for one specific device - USB gadget fixes for some reported problems - cdns3 driver fixes for issues reported - MAINTAINERS file update - thunderbolt minor fix All of these have been in linux-next with no reported issues" * tag 'usb-5.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: usb: bdc: Make bdc pci driver depend on BROKEN xhci: tegra: Delay for disabling LFPS detector xhci: make sure TRB is fully written before giving it to the controller usb: udc: core: Use lock when write to soft_connect USB: gadget: dummy-hcd: Fix errors in port-reset handling usb: gadget: aspeed: fix stop dma register setting. USB: ehci: fix an interrupt calltrace error ehci: fix EHCI host controller initialization sequence MAINTAINERS: update Peter Chen's email address thunderbolt: Drop duplicated 0x prefix from format string MAINTAINERS: Update address for Cadence USB3 driver usb: cdns3: imx: improve driver .remove API usb: cdns3: imx: fix can't create core device the second time issue usb: cdns3: imx: fix writing read-only memory issue
2021-01-24MAINTAINERS: add a couple more files to the Clang/LLVM sectionNathan Chancellor1-0/+2
The K: entry should ensure that Nick and I always get CC'd on patches that touch these files but it is better to be explicit rather than implicit. Link: https://lkml.kernel.org/r/20210114004059.2129921-1-natechancellor@gmail.com Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-01-24proc_sysctl: fix oops caused by incorrect command parametersXiaoming Ni1-1/+6
The process_sysctl_arg() does not check whether val is empty before invoking strlen(val). If the command line parameter () is incorrectly configured and val is empty, oops is triggered. For example: "hung_task_panic=1" is incorrectly written as "hung_task_panic", oops is triggered. The call stack is as follows: Kernel command line: .... hung_task_panic ...... Call trace: __pi_strlen+0x10/0x98 parse_args+0x278/0x344 do_sysctl_args+0x8c/0xfc kernel_init+0x5c/0xf4 ret_from_fork+0x10/0x30 To fix it, check whether "val" is empty when "phram" is a sysctl field. Error codes are returned in the failure branch, and error logs are generated by parse_args(). Link: https://lkml.kernel.org/r/20210118133029.28580-1-nixiaoming@huawei.com Fixes: 3db978d480e2843 ("kernel/sysctl: support setting sysctl parameters from kernel command line") Signed-off-by: Xiaoming Ni <nixiaoming@huawei.com> Acked-by: Vlastimil Babka <vbabka@suse.cz> Cc: Luis Chamberlain <mcgrof@kernel.org> Cc: Kees Cook <keescook@chromium.org> Cc: Iurii Zaikin <yzaikin@google.com> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Michal Hocko <mhocko@suse.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Heiner Kallweit <hkallweit1@gmail.com> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: <stable@vger.kernel.org> [5.8+] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-01-24powerpc/mm/highmem: use __set_pte_at() for kmap_local()Thomas Gleixner1-0/+2
The original PowerPC highmem mapping function used __set_pte_at() to denote that the mapping is per CPU. This got lost with the conversion to the generic implementation. Override the default map function. Link: https://lkml.kernel.org/r/20210112170411.281464308@linutronix.de Fixes: 47da42b27a56 ("powerpc/mm/highmem: Switch to generic kmap atomic") Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Andreas Larsson <andreas@gaisler.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Paul Cercueil <paul@crapouillou.net> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-01-24mips/mm/highmem: use set_pte() for kmap_local()Thomas Gleixner1-0/+1
set_pte_at() on MIPS invokes update_cache() which might recurse into kmap_local(). Use set_pte() like the original MIPS highmem implementation did. Link: https://lkml.kernel.org/r/20210112170411.187513575@linutronix.de Fixes: a4c33e83bca1 ("mips/mm/highmem: Switch to generic kmap atomic") Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reported-by: Paul Cercueil <paul@crapouillou.net> Reported-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Acked-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Andreas Larsson <andreas@gaisler.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-01-24mm/highmem: prepare for overriding set_pte_at()Thomas Gleixner1-1/+6
The generic kmap_local() map function uses set_pte_at(), but MIPS requires set_pte() and PowerPC wants __set_pte_at(). Provide arch_kmap_local_set_pte() and default it to set_pte_at(). Link: https://lkml.kernel.org/r/20210112170411.056306194@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Andreas Larsson <andreas@gaisler.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Paul Cercueil <paul@crapouillou.net> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-01-24sparc/mm/highmem: flush cache and TLBThomas Gleixner1-4/+5
Patch series "mm/highmem: Fix fallout from generic kmap_local conversions". The kmap_local conversion wreckaged sparc, mips and powerpc as it missed some of the details in the original implementation. This patch (of 4): The recent conversion to the generic kmap_local infrastructure failed to assign the proper pre/post map/unmap flush operations for sparc. Sparc requires cache flush before map/unmap and tlb flush afterwards. Link: https://lkml.kernel.org/r/20210112170136.078559026@linutronix.de Link: https://lkml.kernel.org/r/20210112170410.905976187@linutronix.de Fixes: 3293efa97807 ("sparc/mm/highmem: Switch to generic kmap atomic") Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reported-by: Andreas Larsson <andreas@gaisler.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Paul Cercueil <paul@crapouillou.net> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-01-24mm: fix page reference leak in soft_offline_page()Dan Williams1-4/+16
The conversion to move pfn_to_online_page() internal to soft_offline_page() missed that the get_user_pages() reference taken by the madvise() path needs to be dropped when pfn_to_online_page() fails. Note the direct sysfs-path to soft_offline_page() does not perform a get_user_pages() lookup. When soft_offline_page() is handed a pfn_valid() && !pfn_to_online_page() pfn the kernel hangs at dax-device shutdown due to a leaked reference. Link: https://lkml.kernel.org/r/161058501210.1840162.8108917599181157327.stgit@dwillia2-desk3.amr.corp.intel.com Fixes: feec24a6139d ("mm, soft-offline: convert parameter to pfn") Signed-off-by: Dan Williams <dan.j.williams@intel.com> Reviewed-by: David Hildenbrand <david@redhat.com> Reviewed-by: Oscar Salvador <osalvador@suse.de> Reviewed-by: Naoya Horiguchi <naoya.horiguchi@nec.com> Cc: Michal Hocko <mhocko@suse.com> Cc: Qian Cai <cai@lca.pw> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-01-24ubsan: disable unsigned-overflow check for i386Arnd Bergmann1-0/+1
Building ubsan kernels even for compile-testing introduced these warnings in my randconfig environment: crypto/blake2b_generic.c:98:13: error: stack frame size of 9636 bytes in function 'blake2b_compress' [-Werror,-Wframe-larger-than=] static void blake2b_compress(struct blake2b_state *S, crypto/sha512_generic.c:151:13: error: stack frame size of 1292 bytes in function 'sha512_generic_block_fn' [-Werror,-Wframe-larger-than=] static void sha512_generic_block_fn(struct sha512_state *sst, u8 const *src, lib/crypto/curve25519-fiat32.c:312:22: error: stack frame size of 2180 bytes in function 'fe_mul_impl' [-Werror,-Wframe-larger-than=] static noinline void fe_mul_impl(u32 out[10], const u32 in1[10], const u32 in2[10]) lib/crypto/curve25519-fiat32.c:444:22: error: stack frame size of 1588 bytes in function 'fe_sqr_impl' [-Werror,-Wframe-larger-than=] static noinline void fe_sqr_impl(u32 out[10], const u32 in1[10]) Further testing showed that this is caused by -fsanitize=unsigned-integer-overflow, but is isolated to the 32-bit x86 architecture. The one in blake2b immediately overflows the 8KB stack area architectures, so better ensure this never happens by disabling the option for 32-bit x86. Link: https://lkml.kernel.org/r/20210112202922.2454435-1-arnd@kernel.org Link: https://lore.kernel.org/lkml/20201230154749.746641-1-arnd@kernel.org/ Fixes: d0a3ac549f38 ("ubsan: enable for all*config builds") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Kees Cook <keescook@chromium.org> Reviewed-by: Nathan Chancellor <natechancellor@gmail.com> Cc: Nick Desaulniers <ndesaulniers@google.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Marco Elver <elver@google.com> Cc: George Popescu <georgepope@android.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-01-24kasan, mm: fix resetting page_alloc tags for HW_TAGSAndrey Konovalov1-0/+2
A previous commit added resetting KASAN page tags to kernel_init_free_pages() to avoid false-positives due to accesses to metadata with the hardware tag-based mode. That commit did reset page tags before the metadata access, but didn't restore them after. As the result, KASAN fails to detect bad accesses to page_alloc allocations on some configurations. Fix this by recovering the tag after the metadata access. Link: https://lkml.kernel.org/r/02b5bcd692e912c27d484030f666b350ad7e4ae4.1611074450.git.andreyknvl@google.com Fixes: aa1ef4d7b3f6 ("kasan, mm: reset tags when accessing metadata") Signed-off-by: Andrey Konovalov <andreyknvl@google.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Alexander Potapenko <glider@google.com> Cc: Marco Elver <elver@google.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Vincenzo Frascino <vincenzo.frascino@arm.com> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Peter Collingbourne <pcc@google.com> Cc: Evgenii Stepanov <eugenis@google.com> Cc: Branislav Rankov <Branislav.Rankov@arm.com> Cc: Kevin Brodsky <kevin.brodsky@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-01-24kasan, mm: fix conflicts with init_on_alloc/freeAndrey Konovalov1-3/+4
A few places where SLUB accesses object's data or metadata were missed in a previous patch. This leads to false positives with hardware tag-based KASAN when bulk allocations are used with init_on_alloc/free. Fix the false-positives by resetting pointer tags during these accesses. (The kasan_reset_tag call is removed from slab_alloc_node, as it's added into maybe_wipe_obj_freeptr.) Link: https://linux-review.googlesource.com/id/I50dd32838a666e173fe06c3c5c766f2c36aae901 Link: https://lkml.kernel.org/r/093428b5d2ca8b507f4a79f92f9929b35f7fada7.1610731872.git.andreyknvl@google.com Fixes: aa1ef4d7b3f67 ("kasan, mm: reset tags when accessing metadata") Signed-off-by: Andrey Konovalov <andreyknvl@google.com> Reported-by: Dmitry Vyukov <dvyukov@google.com> Acked-by: Vlastimil Babka <vbabka@suse.cz> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Vincenzo Frascino <vincenzo.frascino@arm.com> Cc: Alexander Potapenko <glider@google.com> Cc: Marco Elver <elver@google.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Peter Collingbourne <pcc@google.com> Cc: Evgenii Stepanov <eugenis@google.com> Cc: Branislav Rankov <Branislav.Rankov@arm.com> Cc: Kevin Brodsky <kevin.brodsky@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-01-24kasan: fix HW_TAGS boot parametersAndrey Konovalov2-66/+38
The initially proposed KASAN command line parameters are redundant. This change drops the complex "kasan.mode=off/prod/full" parameter and adds a simpler kill switch "kasan=off/on" instead. The new parameter together with the already existing ones provides a cleaner way to express the same set of features. The full set of parameters with this change: kasan=off/on - whether KASAN is enabled kasan.fault=report/panic - whether to only print a report or also panic kasan.stacktrace=off/on - whether to collect alloc/free stack traces Default values: kasan=on kasan.fault=report kasan.stacktrace=on (if CONFIG_DEBUG_KERNEL=y) kasan.stacktrace=off (otherwise) Link: https://linux-review.googlesource.com/id/Ib3694ed90b1e8ccac6cf77dfd301847af4aba7b8 Link: https://lkml.kernel.org/r/4e9c4a4bdcadc168317deb2419144582a9be6e61.1610736745.git.andreyknvl@google.com Signed-off-by: Andrey Konovalov <andreyknvl@google.com> Reviewed-by: Vincenzo Frascino <vincenzo.frascino@arm.com> Reviewed-by: Marco Elver <elver@google.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Alexander Potapenko <glider@google.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Peter Collingbourne <pcc@google.com> Cc: Evgenii Stepanov <eugenis@google.com> Cc: Branislav Rankov <Branislav.Rankov@arm.com> Cc: Kevin Brodsky <kevin.brodsky@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-01-24kasan: fix incorrect arguments passing in kasan_add_zero_shadowLecopzer Chen1-2/+1
kasan_remove_zero_shadow() shall use original virtual address, start and size, instead of shadow address. Link: https://lkml.kernel.org/r/20210103063847.5963-1-lecopzer@gmail.com Fixes: 0207df4fa1a86 ("kernel/memremap, kasan: make ZONE_DEVICE with work with KASAN") Signed-off-by: Lecopzer Chen <lecopzer.chen@mediatek.com> Reviewed-by: Andrey Konovalov <andreyknvl@google.com> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Alexander Potapenko <glider@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-01-24kasan: fix unaligned address is unhandled in kasan_remove_zero_shadowLecopzer Chen1-8/+12
During testing kasan_populate_early_shadow and kasan_remove_zero_shadow, if the shadow start and end address in kasan_remove_zero_shadow() is not aligned to PMD_SIZE, the remain unaligned PTE won't be removed. In the test case for kasan_remove_zero_shadow(): shadow_start: 0xffffffb802000000, shadow end: 0xffffffbfbe000000 3-level page table: PUD_SIZE: 0x40000000 PMD_SIZE: 0x200000 PAGE_SIZE: 4K 0xffffffbf80000000 ~ 0xffffffbfbdf80000 will not be removed because in kasan_remove_pud_table(), kasan_pmd_table(*pud) is true but the next address is 0xffffffbfbdf80000 which is not aligned to PUD_SIZE. In the correct condition, this should fallback to the next level kasan_remove_pmd_table() but the condition flow always continue to skip the unaligned part. Fix by correcting the condition when next and addr are neither aligned. Link: https://lkml.kernel.org/r/20210103135621.83129-1-lecopzer@gmail.com Fixes: 0207df4fa1a86 ("kernel/memremap, kasan: make ZONE_DEVICE with work with KASAN") Signed-off-by: Lecopzer Chen <lecopzer.chen@mediatek.com> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Alexander Potapenko <glider@google.com> Cc: YJ Chiang <yj.chiang@mediatek.com> Cc: Andrey Konovalov <andreyknvl@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-01-24Merge tag 'irq_urgent_for_v5.11_rc5' of ↵Linus Torvalds8-8/+19
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq fixes from Borislav Petkov: - Fix a kernel panic in mips-cpu due to invalid irq domain hierarchy. - Fix to not lose IPIs on bcm2836. - Fix for a bogus marking of ITS devices as shared due to unitialized stack variable. - Clear a phantom interrupt on qcom-pdc to unblock suspend. - Small cleanups, warning and build fixes. * tag 'irq_urgent_for_v5.11_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: genirq: Export irq_check_status_bit() irqchip/mips-cpu: Set IPI domain parent chip irqchip/pruss: Simplify the TI_PRUSS_INTC Kconfig irqchip/loongson-liointc: Fix build warnings driver core: platform: Add extra error check in devm_platform_get_irqs_affinity() irqchip/bcm2836: Fix IPI acknowledgement after conversion to handle_percpu_devid_irq irqchip/irq-sl28cpld: Convert comma to semicolon genirq/msi: Initialize msi_alloc_info before calling msi_domain_prepare_irqs()
2021-01-24Merge tag 'objtool_urgent_for_v5.11_rc5' of ↵Linus Torvalds2-11/+17
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull objtool fixes from Borislav Petkov: - Adjust objtool to handle a recent binutils change to not generate unused symbols anymore. - Revert the fail-the-build-on-fatal-errors objtool strategy for now due to the ever-increasing matrix of supported toolchains/plugins and them causing too many such fatal errors currently. - Do not add empty symbols to objdump's rbtree to accommodate clang removing section symbols. * tag 'objtool_urgent_for_v5.11_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: objtool: Don't fail on missing symbol table objtool: Don't fail the kernel build on fatal errors objtool: Don't add empty symbols to the rbtree
2021-01-24Merge tag 'sched_urgent_for_v5.11_rc5' of ↵Linus Torvalds7-33/+151
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull scheduler fixes from Borislav Petkov: - Correct the marking of kthreads which are supposed to run on a specific, single CPU vs such which are affine to only one CPU, mark per-cpu workqueue threads as such and make sure that marking "survives" CPU hotplug. Fix CPU hotplug issues with such kthreads. - A fix to not push away tasks on CPUs coming online. - Have workqueue CPU hotplug code use cpu_possible_mask when breaking affinity on CPU offlining so that pending workers can finish on newly arrived onlined CPUs too. - Dump tasks which haven't vacated a CPU which is currently being unplugged. - Register a special scale invariance callback which gets called on resume from RAM to read out APERF/MPERF after resume and thus make the schedutil scaling governor more precise. * tag 'sched_urgent_for_v5.11_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched: Relax the set_cpus_allowed_ptr() semantics sched: Fix CPU hotplug / tighten is_per_cpu_kthread() sched: Prepare to use balance_push in ttwu() workqueue: Restrict affinity change to rescuer workqueue: Tag bound workers with KTHREAD_IS_PER_CPU kthread: Extract KTHREAD_IS_PER_CPU sched: Don't run cpu-online with balance_push() enabled workqueue: Use cpu_possible_mask instead of cpu_active_mask to break affinity sched/core: Print out straggler tasks in sched_cpu_dying() x86: PM: Register syscore_ops for scale invariance
2021-01-24Merge tag 'timers_urgent_for_v5.11_rc5' of ↵Linus Torvalds4-19/+3
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer fixes from Borislav Petkov: - Fix an integer overflow in the NTP RTC synchronization which led to the latter happening every 2 seconds instead of the intended every 11 minutes. - Get rid of now unused get_seconds(). * tag 'timers_urgent_for_v5.11_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: ntp: Fix RTC synchronization on 32-bit platforms timekeeping: Remove unused get_seconds()
2021-01-24Merge tag 'x86_urgent_for_v5.11_rc5' of ↵Linus Torvalds12-27/+72
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Borislav Petkov: - Add a new Intel model number for Alder Lake - Differentiate which aspects of the FPU state get saved/restored when the FPU is used in-kernel and fix a boot crash on K7 due to early MXCSR access before CR4.OSFXSR is even set. - A couple of noinstr annotation fixes - Correct die ID setting on AMD for users of topology information which need the correct die ID - A SEV-ES fix to handle string port IO to/from kernel memory properly * tag 'x86_urgent_for_v5.11_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/cpu: Add another Alder Lake CPU to the Intel family x86/mmx: Use KFPU_387 for MMX string operations x86/fpu: Add kernel_fpu_begin_mask() to selectively initialize state x86/topology: Make __max_die_per_package available unconditionally x86: __always_inline __{rd,wr}msr() x86/mce: Remove explicit/superfluous tracing locking/lockdep: Avoid noinstr warning for DEBUG_LOCKDEP locking/lockdep: Cure noinstr fail x86/sev: Fix nonistr violation x86/entry: Fix noinstr fail x86/cpu/amd: Set __max_die_per_package on AMD x86/sev-es: Handle string port IO to kernel memory properly
2021-01-24Merge tag 'powerpc-5.11-5' of ↵Linus Torvalds9-7/+77
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fixes from Michael Ellerman: - Fix a bad interaction between the scv handling and the fallback L1D flush, which could lead to user register corruption. Only affects people using scv (~no one) on machines with old firmware that are missing the L1D flush. - Two small selftest fixes. Thanks to Eirik Fuller, Libor Pechacek, Nicholas Piggin, Sandipan Das, and Tulio Magno Quites Machado Filho. * tag 'powerpc-5.11-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/64s: fix scv entry fallback flush vs interrupt selftests/powerpc: Only test lwm/stmw on big endian selftests/powerpc: Fix exit status of pkey tests
2021-01-24Merge tag 'for-linus-2021-01-24' of ↵Linus Torvalds4-7/+6
git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux Pull misc fixes from Christian Brauner: - Jann reported sparse complaints because of a missing __user annotation in a helper we added way back when we added pidfd_send_signal() to avoid compat syscall handling. Fix it. - Yanfei replaces a reference in a comment to the _do_fork() helper I removed a while ago with a reference to the new kernel_clone() replacement - Alexander Guril added a simple coding style fix * tag 'for-linus-2021-01-24' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux: kthread: remove comments about old _do_fork() helper Kernel: fork.c: Fix coding style: Do not use {} around single-line statements signal: Add missing __user annotation to copy_siginfo_from_user_any
2021-01-24Merge tag '5.11-rc4-smb3' of git://git.samba.org/sfrench/cifs-2.6Linus Torvalds2-4/+4
Pull cifs fixes from Steve French: "An important signal handling patch for stable, and two small cleanup patches" * tag '5.11-rc4-smb3' of git://git.samba.org/sfrench/cifs-2.6: cifs: do not fail __smb_send_rqst if non-fatal signals are pending fs/cifs: Simplify bool comparison. fs/cifs: Assign boolean values to a bool variable
2021-01-24mm: fix numa stats for thp migrationShakeel Butt1-11/+12
Currently the kernel is not correctly updating the numa stats for NR_FILE_PAGES and NR_SHMEM on THP migration. Fix that. For NR_FILE_DIRTY and NR_ZONE_WRITE_PENDING, although at the moment there is no need to handle THP migration as kernel still does not have write support for file THP but to be more future proof, this patch adds the THP support for those stats as well. Link: https://lkml.kernel.org/r/20210108155813.2914586-2-shakeelb@google.com Fixes: e71769ae52609 ("mm: enable thp migration for shmem thp") Signed-off-by: Shakeel Butt <shakeelb@google.com> Acked-by: Yang Shi <shy828301@gmail.com> Reviewed-by: Roman Gushchin <guro@fb.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Michal Hocko <mhocko@kernel.org> Cc: Muchun Song <songmuchun@bytedance.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-18 19:52:03 +0300