This series updates the arm64 stacktrace code to use the newer and much simpler arch_stack_walk() interface, the main benefit being a single entry point to the arch code with no need for the arch code to worry about skipping frames. Along the way I noticed that the reliable parameter to the arch_stack_walk() callback appears to be redundant so there's also a patch here removing that from the existing code to simplify the interface. This is preparatory work for implementing reliable stack trace for arm64. v2: Rebase onto v5.9-rc1. Mark Brown (3): stacktrace: Remove reliable argument from arch_stack_walk() callback arm64: stacktrace: Make stack walk callback consistent with generic code arm64: stacktrace: Convert to ARCH_STACKWALK arch/arm64/Kconfig | 1 + arch/arm64/include/asm/stacktrace.h | 2 +- arch/arm64/kernel/perf_callchain.c | 6 +-- arch/arm64/kernel/return_address.c | 8 +-- arch/arm64/kernel/stacktrace.c | 84 ++++------------------------- arch/s390/kernel/stacktrace.c | 4 +- arch/x86/kernel/stacktrace.c | 10 ++-- include/linux/stacktrace.h | 5 +- kernel/stacktrace.c | 8 ++- 9 files changed, 30 insertions(+), 98 deletions(-) -- 2.20.1