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Subject[PATCH RESEND v3 0/4] ARM: Convert to ARCH_STACKWALK
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This series mainly updates the ARM stack trace code to use the newer and
simpler arch_stack_walk() interface (see patches 3 and 4). Two issues
were fixed before that (see patches 1 and 2).

v3 RESEND notes:

Rebase to v6.0-rc1.

It's been a month since I sent the v3. Linus told me I needed to add the
patch to Russell's patch tracker myself, rebase to v6.0-rc1 before that.
Thanks Linus for the tip!

Since commit af6f23b88e95 ("ARM/dma-mapping: use the generic versions of
dma_to_phys/phys_to_dma by default") and commit ae626eb97376
("ARM/dma-mapping: use dma-direct unconditionally") modified
arch/arm/Kconfig, there is a minor conflict with patch 4 when rebase.

v3: https://lore.kernel.org/lkml/20220727040022.139387-1-lihuafei1@huawei.com/
- According to the discussion with Linus and Russell in v1:
- Add a comment about "regs[1]" in patch 2, and remove the
unnecessary ternary operator in the initialization of
"frame->ex_frame".
- Remove the patch "ARM: stacktrace: Allow stack trace saving for
non-current tasks", and keep the check for not being able to
unwind non-current tasks (including tasks running on other CPUs)
when CONFIG_SMP=y in patch 4.
- Rebase to linux-5.19-rc8.

v2: https://lore.kernel.org/lkml/20220713110020.85511-1-lihuafei1@huawei.com/
- 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 (4):
ARM: stacktrace: Skip frame pointer boundary check for
call_with_stack()
ARM: stacktrace: Avoid duplicate saving of exception PC value
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 | 191 ++++++++++++++----------------
arch/arm/lib/call_with_stack.S | 2 +
6 files changed, 110 insertions(+), 110 deletions(-)

--
2.17.1

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