linux-kernel - Re: [PATCH 0/2] tracing: Fixes for filter

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Message-ID: <20250703103008.0086bb77@batman.local.home>
Date: Thu, 3 Jul 2025 10:30:08 -0400
From: Steven Rostedt <rostedt@...dmis.org>
To: "Masami Hiramatsu (Google)" <mhiramat@...nel.org>
Cc: Shuah Khan <shuah@...nel.org>, Mathieu Desnoyers
 <mathieu.desnoyers@...icios.com>, linux-kernel@...r.kernel.org,
 linux-trace-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org
Subject: Re: [PATCH 0/2] tracing: Fixes for filter

On Thu,  3 Jul 2025 13:26:26 +0900
"Masami Hiramatsu (Google)" <mhiramat@...nel.org> wrote:

> Hi,
> 
> Here is a patch series to fix some issues on the trace event
> and function filters.
> 
> The first patch fixes an issue that the event filter can not
> handle the string pointer with BTF attribute tag. This happens
> with CONFIG_DEBUG_INFO_BTF=y and PAHOLE_HAS_BTF_TAG=y.
> 
> The second patch fixes a selftest issue on the function glob
> filter. Since mutex_trylock() can be an inline function, it
> is not a good example for ftrace. This replaces it with
> mutex_unlock().
> 
> Thank you,
> 
> ---
> Masami Hiramatsu (Google) (2):
>       tracing: Handle "(const) char __attribute() *" as string ptr type

I can take the first patch.

>       selftests: tracing: Use mutex_unlock for testing glob filter

This patch should go via Shuah's tree.

-- Steve

> 
>  kernel/trace/trace_events_filter.c                         | 5 +++++
>  tools/testing/selftests/ftrace/test.d/ftrace/func-filter-glob.tc | 2 +-
>  2 files changed, 6 insertions(+), 1 deletion(-)