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.
v3:
- Rebase onto v5.9-rc3.
- Fix handling of task == current.
- Flip the sense of the walk_stackframe() callback.
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, 32 insertions(+), 96 deletions(-)
base-commit: f75aef392f869018f78cfedf3c320a6b3fcfda6b
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2.20.1
