linux-stable/arch
Linus Torvalds c14cab2688 A set of fixes for x86:
- Ensure that direct mapping alias is always flushed when changing page
    attributes. The optimization for small ranges failed to do so when
    the virtual address was in the vmalloc or module space.
 
  - Unbreak the trace event registration for syscalls without arguments
    caused by the refactoring of the SYSCALL_DEFINE0() macro.
 
  - Move the printk in the TSC deadline timer code to a place where it is
    guaranteed to only be called once during boot and cannot be rearmed by
    clearing warn_once after boot. If it's invoked post boot then lockdep
    rightfully complains about a potential deadlock as the calling context
    is different.
 
  - A series of fixes for objtool and the ORC unwinder addressing variety
    of small issues:
 
      Stack offset tracking for indirect CFAs in objtool ignored subsequent
      pushs and pops
 
      Repair the unwind hints in the register clearing entry ASM code
 
      Make the unwinding in the low level exit to usermode code stop after
      switching to the trampoline stack. The unwind hint is not longer valid
      and the ORC unwinder emits a warning as it can't find the registers
      anymore.
 
      Fix the unwind hints in switch_to_asm() and rewind_stack_do_exit()
      which caused objtool to generate bogus ORC data.
 
      Prevent unwinder warnings when dumping the stack of a non-current
      task as there is no way to be sure about the validity because the
      dumped stack can be a moving target.
 
      Make the ORC unwinder behave the same way as the frame pointer
      unwinder when dumping an inactive tasks stack and do not skip the
      first frame.
 
      Prevent ORC unwinding before ORC data has been initialized
 
      Immediately terminate unwinding when a unknown ORC entry type is
      found.
 
      Prevent premature stop of the unwinder caused by IRET frames.
 
      Fix another infinite loop in objtool caused by a negative offset which
      was not catched.
 
      Address a few build warnings in the ORC unwinder and add missing
      static/ro_after_init annotations
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Merge tag 'x86-urgent-2020-05-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 fixes from Thomas Gleixner:
 "A set of fixes for x86:

   - Ensure that direct mapping alias is always flushed when changing
     page attributes. The optimization for small ranges failed to do so
     when the virtual address was in the vmalloc or module space.

   - Unbreak the trace event registration for syscalls without arguments
     caused by the refactoring of the SYSCALL_DEFINE0() macro.

   - Move the printk in the TSC deadline timer code to a place where it
     is guaranteed to only be called once during boot and cannot be
     rearmed by clearing warn_once after boot. If it's invoked post boot
     then lockdep rightfully complains about a potential deadlock as the
     calling context is different.

   - A series of fixes for objtool and the ORC unwinder addressing
     variety of small issues:

       - Stack offset tracking for indirect CFAs in objtool ignored
         subsequent pushs and pops

       - Repair the unwind hints in the register clearing entry ASM code

       - Make the unwinding in the low level exit to usermode code stop
         after switching to the trampoline stack. The unwind hint is no
         longer valid and the ORC unwinder emits a warning as it can't
         find the registers anymore.

       - Fix unwind hints in switch_to_asm() and rewind_stack_do_exit()
         which caused objtool to generate bogus ORC data.

       - Prevent unwinder warnings when dumping the stack of a
         non-current task as there is no way to be sure about the
         validity because the dumped stack can be a moving target.

       - Make the ORC unwinder behave the same way as the frame pointer
         unwinder when dumping an inactive tasks stack and do not skip
         the first frame.

       - Prevent ORC unwinding before ORC data has been initialized

       - Immediately terminate unwinding when a unknown ORC entry type
         is found.

       - Prevent premature stop of the unwinder caused by IRET frames.

       - Fix another infinite loop in objtool caused by a negative
         offset which was not catched.

       - Address a few build warnings in the ORC unwinder and add
         missing static/ro_after_init annotations"

* tag 'x86-urgent-2020-05-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/unwind/orc: Move ORC sorting variables under !CONFIG_MODULES
  x86/apic: Move TSC deadline timer debug printk
  ftrace/x86: Fix trace event registration for syscalls without arguments
  x86/mm/cpa: Flush direct map alias during cpa
  objtool: Fix infinite loop in for_offset_range()
  x86/unwind/orc: Fix premature unwind stoppage due to IRET frames
  x86/unwind/orc: Fix error path for bad ORC entry type
  x86/unwind/orc: Prevent unwinding before ORC initialization
  x86/unwind/orc: Don't skip the first frame for inactive tasks
  x86/unwind: Prevent false warnings for non-current tasks
  x86/unwind/orc: Convert global variables to static
  x86/entry/64: Fix unwind hints in rewind_stack_do_exit()
  x86/entry/64: Fix unwind hints in __switch_to_asm()
  x86/entry/64: Fix unwind hints in kernel exit path
  x86/entry/64: Fix unwind hints in register clearing code
  objtool: Fix stack offset tracking for indirect CFAs
2020-05-10 11:59:53 -07:00
..
alpha mm/special: create generic fallbacks for pte_special() and pte_mkspecial() 2020-04-10 15:36:21 -07:00
arc arch: split MODULE_ARCH_VERMAGIC definitions out to <asm/vermagic.h> 2020-04-23 10:50:26 +09:00
arm ARM: futex: Address build warning 2020-05-07 00:41:47 +02:00
arm64 - Avoid potential NULL dereference in huge_pte_alloc() on pmd_alloc() 2020-05-07 09:55:58 -07:00
c6x mm/vma: define a default value for VM_DATA_DEFAULT_FLAGS 2020-04-10 15:36:21 -07:00
csky mm/special: create generic fallbacks for pte_special() and pte_mkspecial() 2020-04-10 15:36:21 -07:00
h8300 h8300: ignore vmlinux.lds 2020-04-23 16:41:26 +09:00
hexagon arch: split MODULE_ARCH_VERMAGIC definitions out to <asm/vermagic.h> 2020-04-23 10:50:26 +09:00
ia64 arch: split MODULE_ARCH_VERMAGIC definitions out to <asm/vermagic.h> 2020-04-23 10:50:26 +09:00
m68k m68k: Drop redundant generic-y += hardirq.h 2020-04-13 11:08:52 -07:00
microblaze mm/special: create generic fallbacks for pte_special() and pte_mkspecial() 2020-04-10 15:36:21 -07:00
mips arch: split MODULE_ARCH_VERMAGIC definitions out to <asm/vermagic.h> 2020-04-23 10:50:26 +09:00
nds32 arch: split MODULE_ARCH_VERMAGIC definitions out to <asm/vermagic.h> 2020-04-23 10:50:26 +09:00
nios2 nios2 update for v5.7-rc1 2020-04-11 11:38:44 -07:00
openrisc mm/special: create generic fallbacks for pte_special() and pte_mkspecial() 2020-04-10 15:36:21 -07:00
parisc mm/special: create generic fallbacks for pte_special() and pte_mkspecial() 2020-04-10 15:36:21 -07:00
powerpc Bugfixes, mostly for ARM and AMD, and more documentation. 2020-05-07 09:50:59 -07:00
riscv RISC-V: Remove unused code from STRICT_KERNEL_RWX 2020-05-05 17:02:14 -07:00
s390 Bugfixes, mostly for ARM and AMD, and more documentation. 2020-05-07 09:50:59 -07:00
sh Kbuild fixes for v5.7 2020-04-24 10:39:32 -07:00
sparc mm/special: create generic fallbacks for pte_special() and pte_mkspecial() 2020-04-10 15:36:21 -07:00
um um: ensure make ARCH=um mrproper removes arch/$(SUBARCH)/include/generated/ 2020-04-23 10:50:26 +09:00
unicore32 mm/special: create generic fallbacks for pte_special() and pte_mkspecial() 2020-04-10 15:36:21 -07:00
x86 A set of fixes for x86: 2020-05-10 11:59:53 -07:00
xtensa arch: split MODULE_ARCH_VERMAGIC definitions out to <asm/vermagic.h> 2020-04-23 10:50:26 +09:00
.gitignore
Kconfig dma-mapping updates for 5.7 2020-04-04 10:12:47 -07:00