# Re: \[PATCH\] visl: use canonical ftrace path

- From: Steven Rostedt \<rostedt@goodmis.org\>
- Date: 2023-08-31 13:39:13 
- List: linux-trace-kernel
- Page: https://ratatoskr.run/linux-trace-kernel/2023/08/2320853
- Thread: https://ratatoskr.run/linux-media/2023/08/2318924/t.md

```text
On Tue, 29 Aug 2023 14:46:01 -0600
Ross Zwisler [ref] wrote:

> From: Ross Zwisler <redacted>
> 
> The canonical location for the tracefs filesystem is at /sys/kernel/tracing.
> 
> But, from Documentation/trace/ftrace.rst:
> 
>   Before 4.1, all ftrace tracing control files were within the debugfs
>   file system, which is typically located at /sys/kernel/debug/tracing.
>   For backward compatibility, when mounting the debugfs file system,
>   the tracefs file system will be automatically mounted at:
> 
>   /sys/kernel/debug/tracing
> 
> Update the visl decoder driver documentation to use this tracefs path.
> 
> Signed-off-by: Ross Zwisler <redacted>

Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>

Thanks Ross!

-- Steve

```