arm64: stacktrace: fix comment

Due to a copy-paste error, we describe struct stackframe::pc as a
snapshot of the `fp` field rather than the `lr` field.

Fix the comment.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Madhavan T. Venkataraman <madvenka@linux.microsoft.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Will Deacon <will@kernel.org>
Reviewed-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20210802164845.45506-2-mark.rutland@arm.com
Signed-off-by: Will Deacon <will@kernel.org>

diff --git a/arch/arm64/include/asm/stacktrace.h b/arch/arm64/include/asm/stacktrace.h
index 1801399..8aebc00 100644 (file)
--- a/arch/arm64/include/asm/stacktrace.h
+++ b/arch/arm64/include/asm/stacktrace.h
@@ -35,7 +35,7 @@ struct stack_info {
  * accounting information necessary for robust unwinding.
  *
  * @fp:          The fp value in the frame record (or the real fp)
- * @pc:          The fp value in the frame record (or the real lr)
+ * @pc:          The lr value in the frame record (or the real lr)
  *
  * @stacks_done: Stacks which have been entirely unwound, for which it is no
  *               longer valid to unwind to.