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Linus Torvalds 3bb61aa618 arm64 fixes for -rc7 
- Fix numerous issues with instrumentation and exception entry
 
 - Fix hideous typo in unused register field definition
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:
 "I'm sad to say that we've got an unusually large arm64 fixes pull for
  rc7 which addresses numerous significant instrumentation issues with
  our entry code.

  Without these patches, lockdep is hopelessly unreliable in some
  configurations [1,2] and syzkaller is therefore not a lot of use
  because it's so noisy.

  Although much of this has always been broken, it appears to have been
  exposed more readily by other changes such as 044d0d6de9 ("lockdep:
  Only trace IRQ edges") and general lockdep improvements around IRQ
  tracing and NMIs.

  Fixing this properly required moving much of the instrumentation hooks
  from our entry assembly into C, which Mark has been working on for the
  last few weeks. We're not quite ready to move to the recently added
  generic functions yet, but the code here has been deliberately written
  to mimic that closely so we can look at cleaning things up once we
  have a bit more breathing room.

  Having said all that, the second version of these patches was posted
  last week and I pushed it into our CI (kernelci and cki) along with a
  commit which forced on PROVE_LOCKING, NOHZ_FULL and
  CONTEXT_TRACKING_FORCE. The result? We found a real bug in the
  md/raid10 code [3].

  Oh, and there's also a really silly typo patch that's unrelated.

  Summary:

   - Fix numerous issues with instrumentation and exception entry

   - Fix hideous typo in unused register field definition"

[1] https://lore.kernel.org/r/CACT4Y+aAzoJ48Mh1wNYD17pJqyEcDnrxGfApir=-j171TnQXhw@mail.gmail.com
[2] https://lore.kernel.org/r/20201119193819.GA2601289@elver.google.com
[3] https://lore.kernel.org/r/94c76d5e-466a-bc5f-e6c2-a11b65c39f83@redhat.com

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: mte: Fix typo in macro definition
  arm64: entry: fix EL1 debug transitions
  arm64: entry: fix NMI {user, kernel}->kernel transitions
  arm64: entry: fix non-NMI kernel<->kernel transitions
  arm64: ptrace: prepare for EL1 irq/rcu tracking
  arm64: entry: fix non-NMI user<->kernel transitions
  arm64: entry: move el1 irq/nmi logic to C
  arm64: entry: prepare ret_to_user for function call
  arm64: entry: move enter_from_user_mode to entry-common.c
  arm64: entry: mark entry code as noinstr
  arm64: mark idle code as noinstr
  arm64: syscall: exit userspace before unmasking exceptions
2020-12-02 12:27:37 -08:00
..
alpha sched/idle: Fix arch_cpu_idle() vs tracing 2020-11-24 16:47:35 +01:00
arc asm-generic: add correct MAX_POSSIBLE_PHYSMEM_BITS setting 2020-11-27 15:00:35 -08:00
arm Yet two more places which invoke tracing from RCU disabled regions in the 2020-11-29 11:19:26 -08:00
arm64 arm64 fixes for -rc7 2020-12-02 12:27:37 -08:00
c6x arch-cleanup-2020-10-22 2020-10-23 10:06:38 -07:00
csky Yet two more places which invoke tracing from RCU disabled regions in the 2020-11-29 11:19:26 -08:00
h8300 sched/idle: Fix arch_cpu_idle() vs tracing 2020-11-24 16:47:35 +01:00
hexagon sched/idle: Fix arch_cpu_idle() vs tracing 2020-11-24 16:47:35 +01:00
ia64 Yet two more places which invoke tracing from RCU disabled regions in the 2020-11-29 11:19:26 -08:00
m68k arch-cleanup-2020-10-22 2020-10-23 10:06:38 -07:00
microblaze sched/idle: Fix arch_cpu_idle() vs tracing 2020-11-24 16:47:35 +01:00
mips Yet two more places which invoke tracing from RCU disabled regions in the 2020-11-29 11:19:26 -08:00
nds32 arch-cleanup-2020-10-22 2020-10-23 10:06:38 -07:00
nios2 sched/idle: Fix arch_cpu_idle() vs tracing 2020-11-24 16:47:35 +01:00
openrisc sched/idle: Fix arch_cpu_idle() vs tracing 2020-11-24 16:47:35 +01:00
parisc sched/idle: Fix arch_cpu_idle() vs tracing 2020-11-24 16:47:35 +01:00
powerpc Yet two more places which invoke tracing from RCU disabled regions in the 2020-11-29 11:19:26 -08:00
riscv Yet two more places which invoke tracing from RCU disabled regions in the 2020-11-29 11:19:26 -08:00
s390 Yet two more places which invoke tracing from RCU disabled regions in the 2020-11-29 11:19:26 -08:00
sh sched/idle: Fix arch_cpu_idle() vs tracing 2020-11-24 16:47:35 +01:00
sparc sched/idle: Fix arch_cpu_idle() vs tracing 2020-11-24 16:47:35 +01:00
um Yet two more places which invoke tracing from RCU disabled regions in the 2020-11-29 11:19:26 -08:00
x86 Yet two more places which invoke tracing from RCU disabled regions in the 2020-11-29 11:19:26 -08:00
xtensa xtensa: uaccess: Add missing __user to strncpy_from_user() prototype 2020-11-17 05:09:28 -08:00
.gitignore
Kconfig Merge branch 'work.set_fs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-10-22 09:59:21 -07:00