[PATCH v2 0/5] ARM: Convert to ARCH_STACKWALK

[Li Huafei]

This series mainly updates the ARM stack trace code to use the newer and
simpler arch_stack_walk() interface. Two issues were fixed before that
(see patch 1 and 2), as well as allowing stack_trace_save_tsk() to
trace non-current tasks (see patch 3).

v2:
 - As suggested by Mark, the commit logs for patch 4 and 5 were
   refined for easy review.

v1: https://lore.kernel.org/lkml/20220712021527.109921-1-lihuafei1@huawei.com/

Li Huafei (5):
  ARM: stacktrace: Skip frame pointer boundary check for
    call_with_stack()
  ARM: stacktrace: Avoid duplicate saving of exception PC value
  ARM: stacktrace: Allow stack trace saving for non-current tasks
  ARM: stacktrace: Make stack walk callback consistent with generic code
  ARM: stacktrace: Convert stacktrace to generic ARCH_STACKWALK

 arch/arm/Kconfig                  |   1 +
 arch/arm/include/asm/stacktrace.h |   8 +-
 arch/arm/kernel/perf_callchain.c  |   9 +-
 arch/arm/kernel/return_address.c  |   9 +-
 arch/arm/kernel/stacktrace.c      | 195 +++++++++++++-----------------
 arch/arm/lib/call_with_stack.S    |   2 +
 6 files changed, 105 insertions(+), 119 deletions(-)

-- 
2.17.1