pm24.git, branch v5.8-rc6

Linux 5.8-rc6

2020-07-19T22:41:18Z

Merge tag 'perf-tools-fixes-2020-07-19' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into master

2020-07-19T19:35:07Z

Pull perf tooling fixes from Arnaldo Carvalho de Melo: - Update hashmap.h from libbpf and kvm.h from x86's kernel UAPI. - Set opt->set in libsubcmd's OPT_CALLBACK_SET(). This fixes 'perf record --switch-output-event event-name' usage" * tag 'perf-tools-fixes-2020-07-19' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: tools arch kvm: Sync kvm headers with the kernel sources perf tools: Sync hashmap.h with libbpf's libsubcmd: Fix OPT_CALLBACK_SET()

Merge tag 'x86-urgent-2020-07-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into master

2020-07-19T19:16:09Z

Pull x86 fixes from Thomas Gleixner: "A pile of fixes for x86: - Fix the I/O bitmap invalidation on XEN PV, which was overlooked in the recent ioperm/iopl rework. This caused the TSS and XEN's I/O bitmap to get out of sync. - Use the proper vectors for HYPERV. - Make disabling of stack protector for the entry code work with GCC builds which enable stack protector by default. Removing the option is not sufficient, it needs an explicit -fno-stack-protector to shut it off. - Mark check_user_regs() noinstr as it is called from noinstr code. The missing annotation causes it to be placed in the text section which makes it instrumentable. - Add the missing interrupt disable in exc_alignment_check() - Fixup a XEN_PV build dependency in the 32bit entry code - A few fixes to make the Clang integrated assembler happy - Move EFI stub build to the right place for out of tree builds - Make prepare_exit_to_usermode() static. It's not longer called from ASM code" * tag 'x86-urgent-2020-07-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/boot: Don't add the EFI stub to targets x86/entry: Actually disable stack protector x86/ioperm: Fix io bitmap invalidation on Xen PV x86: math-emu: Fix up 'cmp' insn for clang ias x86/entry: Fix vectors to IDTENTRY_SYSVEC for CONFIG_HYPERV x86/entry: Add compatibility with IAS x86/entry/common: Make prepare_exit_to_usermode() static x86/entry: Mark check_user_regs() noinstr x86/traps: Disable interrupts in exc_aligment_check() x86/entry/32: Fix XEN_PV build dependency

Merge tag 'timers-urgent-2020-07-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into master

2020-07-19T19:06:08Z

Pull timer fixes from Thomas Gleixner: "Two fixes for the timer wheel: - A timer which is already expired at enqueue time can set the base->next_expiry value backwards. As a consequence base->clk can be set back as well. This can lead to timers expiring early. Add a sanity check to prevent this. - When a timer is queued with an expiry time beyond the wheel capacity then it should be queued in the bucket of the last wheel level which is expiring last. The code adjusted the expiry time to the maximum wheel capacity, which is only correct when the wheel clock is 0. Aside of that the check whether the delta is larger than wheel capacity does not check the delta, it checks the expiry value itself. As a result timers can expire at random. Fix this by checking the right variable and adjust expiry time so it becomes base->clock plus capacity which places it into the outmost bucket in the last wheel level" * tag 'timers-urgent-2020-07-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: timer: Fix wheel index calculation on last level timer: Prevent base->clk from moving backward

Merge tag 'sched-urgent-2020-07-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into master

2020-07-19T18:55:24Z

Pull scheduler fixes from Thomas Gleixner: "A set of scheduler fixes: - Plug a load average accounting race which was introduced with a recent optimization casing load average to show bogus numbers. - Fix the rseq CPU id initialization for new tasks. sched_fork() does not update the rseq CPU id so the id is the stale id of the parent task, which can cause user space data corruption. - Handle a 0 return value of task_h_load() correctly in the load balancer, which does not decrease imbalance and therefore pulls until the maximum number of loops is reached, which might be all tasks just created by a fork bomb" * tag 'sched-urgent-2020-07-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched/fair: handle case of task_h_load() returning 0 sched: Fix unreliable rseq cpu_id for new tasks sched: Fix loadavg accounting race

Merge tag 'irq-urgent-2020-07-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into master

2020-07-19T18:53:08Z

Pull irq fixes from Thomas Gleixner: "Two fixes for the interrupt subsystem: - Make the handling of the firmware node consistent and do not free the node after the domain has been created successfully. The core code stores a pointer to it which can lead to a use after free or double free. This used to "work" because the pointer was not stored when the initial code was written, but at some point later it was required to store it. Of course nobody noticed that the existing users break that way. - Handle affinity setting on inactive interrupts correctly when hierarchical irq domains are enabled. When interrupts are inactive with the modern hierarchical irqdomain design, the interrupt chips are not necessarily in a state where affinity changes can be handled. The legacy irq chip design allowed this because interrupts are immediately fully initialized at allocation time. X86 has a hacky workaround for this, but other implementations do not. This cased malfunction on GIC-V3. Instead of playing whack a mole to find all affected drivers, change the core code to store the requested affinity setting and then establish it when the interrupt is allocated, which makes the X86 hack go away" * tag 'irq-urgent-2020-07-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: genirq/affinity: Handle affinity setting on inactive interrupts correctly irqdomain/treewide: Keep firmware node unconditionally allocated

Merge tag 'usb-5.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb into master

2020-07-19T18:46:32Z

Pull USB fixes from Greg KH: "Here are a few small USB fixes, and one thunderbolt fix, for 5.8-rc6. Nothing huge in here, just the normal collection of gadget, dwc2/3, serial, and other minor USB driver fixes and id additions. Full details are in the shortlog. All of these have been in linux-next for a while with no reported issues" * tag 'usb-5.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: USB: serial: iuu_phoenix: fix memory corruption USB: c67x00: fix use after free in c67x00_giveback_urb usb: gadget: function: fix missing spinlock in f_uac1_legacy usb: gadget: udc: atmel: fix uninitialized read in debug printk usb: gadget: udc: atmel: remove outdated comment in usba_ep_disable() usb: dwc2: Fix shutdown callback in platform usb: cdns3: trace: fix some endian issues usb: cdns3: ep0: fix some endian issues usb: gadget: udc: gr_udc: fix memleak on error handling path in gr_ep_init() usb: gadget: fix langid kernel-doc warning in usbstring.c usb: dwc3: pci: add support for the Intel Jasper Lake usb: dwc3: pci: add support for the Intel Tiger Lake PCH -H variant usb: chipidea: core: add wakeup support for extcon USB: serial: option: add Quectel EG95 LTE modem thunderbolt: Fix path indices used in USB3 tunnel discovery USB: serial: ch341: add new Product ID for CH340 USB: serial: option: add GosunCn GM500 series USB: serial: cypress_m8: enable Simply Automated UPB PIM

Merge tag 'dma-mapping-5.8-6' of git://git.infradead.org/users/hch/dma-mapping into master

2020-07-19T18:28:23Z

Pull dma-mapping fixes from Christoph Hellwig: "Ensure we always have fully addressable memory in the dma coherent pool (Nicolas Saenz Julienne)" * tag 'dma-mapping-5.8-6' of git://git.infradead.org/users/hch/dma-mapping: dma-pool: do not allocate pool memory from CMA dma-pool: make sure atomic pool suits device dma-pool: introduce dma_guess_pool() dma-pool: get rid of dma_in_atomic_pool() dma-direct: provide function to check physical memory area validity

x86/boot: Don't add the EFI stub to targets

2020-07-19T11:07:11Z

vmlinux-objs-y is added to targets, which currently means that the EFI stub gets added to the targets as well. It shouldn't be added since it is built elsewhere. This confuses Makefile.build which interprets the EFI stub as a target $(obj)/$(objtree)/drivers/firmware/efi/libstub/lib.a and will create drivers/firmware/efi/libstub/ underneath arch/x86/boot/compressed, to hold this supposed target, if building out-of-tree. [0] Fix this by pulling the stub out of vmlinux-objs-y into efi-obj-y. [0] See scripts/Makefile.build near the end: # Create directories for object files if they do not exist Signed-off-by: Arvind Sankar Signed-off-by: Thomas Gleixner Reviewed-by: Masahiro Yamada Acked-by: Ard Biesheuvel Link: https://lkml.kernel.org/r/20200715032631.1562882-1-nivedita@alum.mit.edu

x86/entry: Actually disable stack protector

2020-07-19T11:07:10Z

Some builds of GCC enable stack protector by default. Simply removing the arguments is not sufficient to disable stack protector, as the stack protector for those GCC builds must be explicitly disabled. Remove the argument removals and add -fno-stack-protector. Additionally include missed x32 argument updates, and adjust whitespace for readability. Fixes: 20355e5f73a7 ("x86/entry: Exclude low level entry code from sanitizing") Signed-off-by: Kees Cook Signed-off-by: Thomas Gleixner Link: https://lkml.kernel.org/r/202006261333.585319CA6B@keescook