diff options
| author | Mark Rutland <[email protected]> | 2021-11-29 14:28:42 +0000 |
|---|---|---|
| committer | Catalin Marinas <[email protected]> | 2021-12-10 14:06:03 +0000 |
| commit | 1e5428b2b7e8aef6a1d10a33fa15df427f087450 (patch) | |
| tree | 05069d045a8e0fb5dc36965d53dd9cfe9fd72fa5 | |
| parent | 1614b2b11fab29dd4ff31ebba9d266961f5af69e (diff) | |
arm64: Add comment for stack_info::kr_cur
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 <[email protected]>
Reviwed-by: Mark Brown <[email protected]>
Reviewed-by: Masami Hiramatsu <[email protected]>
Cc: Steven Rostedt (VMware) <[email protected]>
Cc: Will Deacon <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Catalin Marinas <[email protected]>
| -rw-r--r-- | arch/arm64/include/asm/stacktrace.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/stacktrace.h b/arch/arm64/include/asm/stacktrace.h index 6564a01cc085..1367012e0520 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 KRETPROBES is selected, holds the kretprobe instance + * associated with the most recently encountered replacement lr + * value. */ struct stackframe { unsigned long fp; |