On Tue, Nov 23, 2021 at 01:37:19PM -0600, madvenka@linux.microsoft.com wrote:

From: "Madhavan T. Venkataraman" <redacted>

Currently, arch_stack_walk() calls start_backtrace() and walk_stackframe()
separately. There is no need to do that. Instead, call start_backtrace()
from within walk_stackframe(). In other words, walk_stackframe() is the only
unwind function a consumer needs to call.

Reviewed-by: Mark Brown <broonie@kernel.org>