Messages in this thread Patch in this message | | | From | Mark Rutland <> | Subject | [PATCH 2/9] arm64: Add comment for stack_info::kr_cur | Date | Wed, 17 Nov 2021 14:07:30 +0000 |
| |
We added stack_info::kr_cur in commit:
cd9bc2c9258816dc ("arm64: Recover kretprobe modified return address in stacktrace")
... but didn't add anything in the corresponding comment block.
For consistency, add a corresponding comment.
Signed-off-by: Mark Rutland <mark.rutland@arm.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Will Deacon <will@kernel.org> --- arch/arm64/include/asm/stacktrace.h | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/arch/arm64/include/asm/stacktrace.h b/arch/arm64/include/asm/stacktrace.h index 6564a01cc085..686731b9df05 100644 --- a/arch/arm64/include/asm/stacktrace.h +++ b/arch/arm64/include/asm/stacktrace.h @@ -47,6 +47,10 @@ struct stack_info { * @prev_type: The type of stack this frame record was on, or a synthetic * value of STACK_TYPE_UNKNOWN. This is used to detect a * transition from one stack to another. + * + * @kr_cur: When KRETPOLINES is selected, holds the kretprobe instance + * associated with the most recently encountered replacement lr + * value. */ struct stackframe { unsigned long fp; -- 2.11.0
| |