# Re: \[PATCH v2\] selftests/ftrace: Add missing spaces after ! in probe syntax tests

- From: Masami Hiramatsu (Google) \<mhiramat@kernel.org\>
- Date: 2026-10-29 00:11:08 
- List: linux-trace-kernel
- Page: https://ratatoskr.run/linux-trace-kernel/2026/10/17823830
- Thread: https://ratatoskr.run/linux-trace-kernel/2026/10/17799855/t.md

```text
On Wed, 28 Oct 2026 15:06:26 -0600, Shuah Khan [ref] wrote:
> On 10/27/26 19:18, Jaewon Jung wrote:
> > Add the missing space between ! and grep. Otherwise, the shell tries
> > to run !grep and reports "!grep: not found". This always skips the
> > conditional checks without checking for kernel return probe argument
> > support.
> > 
> > Fixes: 25f00e40ce79 ("tracing/probes: Support $argN in return probe (kprobe and fprobe)")
> > Cc: <redacted>
> > Signed-off-by: Jaewon Jung <redacted>
> > Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
> > ---
> > Changes in v2:
> > - Add Fixes, Cc stable and Acked-by tags as suggested by Masami.
> > 
> 
> Thank you. I will take this for 7.4-rc2.

Thank you!

-- 
Masami Hiramatsu (Google) [ref]
```