[GIT PULL] kgdb changes v4.21-rc1

[Daniel Thompson]

Hi Linus

Happy new year!


The following changes since commit 2595646791c319cadfdbf271563aac97d0843dc7:

  Linux 4.20-rc5 (2018-12-02 15:07:55 -0800)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux.git/ tags/kgdb-4.21-rc1

for you to fetch changes up to cc0282975b3f887005c380adcf0af95915f0c1bb:

  kgdb/treewide: constify struct kgdb_arch arch_kgdb_ops (2018-12-30 08:33:06 +0000)

----------------------------------------------------------------
kgdb patches for 4.20-rc1

Mostly clean ups although whilst Doug's was chasing down a odd
lockdep warning he also did some work to improved debugger resilience
when some CPUs fail to respond to the round up request.

The main changes are:

 * Fixing a lockdep warning on architectures that cannot use an NMI for
   the round up plus related changes to make CPU round up and all CPU
   backtrace more resilient.

 * Constify the arch ops tables

 * A couple of other small clean ups

Two of the three patchsets here include changes that spill over into
arch/.  Changes in the arch space are relatively narrow in scope
(and directly related to kgdb). Didn't get comprehensive acks but
all impacted maintainers were Cc:ed in good time.

Signed-off-by: Daniel Thompson <daniel.thompson@xxxxxxxxxx>

----------------------------------------------------------------
Christophe Leroy (2):
      mips/kgdb: prepare arch_kgdb_ops for constness
      kgdb/treewide: constify struct kgdb_arch arch_kgdb_ops

Douglas Anderson (4):
      kgdb: Remove irq flags from roundup
      kgdb: Fix kgdb_roundup_cpus() for arches who used smp_call_function()
      kgdb: Don't round up a CPU that failed rounding up before
      kdb: Don't back trace on a cpu that didn't round up

Nicholas Mc Guire (1):
      kdb: use bool for binary state indicators

 arch/arc/kernel/kgdb.c          | 12 ++------
 arch/arm/kernel/kgdb.c          | 14 +--------
 arch/arm64/kernel/kgdb.c        | 14 +--------
 arch/h8300/kernel/kgdb.c        |  2 +-
 arch/hexagon/kernel/kgdb.c      | 34 +--------------------
 arch/microblaze/kernel/kgdb.c   |  2 +-
 arch/mips/kernel/kgdb.c         | 25 +++++-----------
 arch/nios2/kernel/kgdb.c        |  2 +-
 arch/powerpc/kernel/kgdb.c      |  8 ++---
 arch/sh/kernel/kgdb.c           | 14 +--------
 arch/sparc/kernel/kgdb_32.c     |  2 +-
 arch/sparc/kernel/kgdb_64.c     |  2 +-
 arch/sparc/kernel/smp_64.c      |  2 +-
 arch/x86/kernel/kgdb.c          | 11 ++-----
 include/linux/kgdb.h            | 24 +++++++++------
 kernel/debug/debug_core.c       | 65 ++++++++++++++++++++++++++++++++++++++++-
 kernel/debug/debug_core.h       |  1 +
 kernel/debug/kdb/kdb_bt.c       | 11 ++++++-
 kernel/debug/kdb/kdb_debugger.c |  7 -----
 kernel/debug/kdb/kdb_main.c     | 14 ++++-----
 20 files changed, 125 insertions(+), 141 deletions(-)