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
      selftests: tracing: Use mutex_unlock for testing glob filter

 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(-)

On Thu,  3 Jul 2025 13:26:26 +0900
"Masami Hiramatsu (Google)" <mhiramat@kernel.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(-)