linux-kernel - Re: [PATCH v7 0/4] tracing/probes: allow no event name input when create group

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Date:   Tue, 05 Jul 2022 16:46:32 -0500
From:   Tom Zanussi <zanussi@...nel.org>
To:     Linyu Yuan <quic_linyyuan@...cinc.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Masami Hiramatsu <mhiramat@...nel.org>
Cc:     linux-kernel@...r.kernel.org
Subject: Re: [PATCH v7 0/4] tracing/probes: allow no event name input when
 create group

Hi Yuan,

On Mon, 2022-06-27 at 10:19 +0800, Linyu Yuan wrote:
> take kprobe event as example, when create a group of events,
> p[:[GRP/]EVENT] [MOD:]KSYM[+OFFS]|KADDR [FETCHARGS],
> according to this format, we must input EVENT name,
> 
> this change allow only GRP/ input, EVENT name auto generate from
> KSYM,
> p[:[GRP/][EVENT]] [MOD:]KSYM[+OFFS]|KADDR [FETCHARGS]
> 
> similar change apply to eprobe and uprobe.

Thanks for making those changes!

For the series,

Reviewed-by: Tom Zanussi <zanussi@...nel.org>

Tom

> 
> V2: (v1:
> https://lore.kernel.org/lkml/1651397651-30454-1-git-send-email-quic_linyyuan@quicinc.com/
> )
>     fix remove comment in V1 patch1,
>     remove v1 patch2 as it is NACK.
> 
> v3: (v2 :
> https://lore.kernel.org/lkml/1653795294-19764-1-git-send-email-quic_linyyuan@quicinc.com/
> )
>     add selftest cases for kprobe and eprobe event,
>     remove macro used in v1,v2,
>     change location to generate eprobe event name.
> 
> v4: (v3 :
> https://lore.kernel.org/lkml/1653978552-18637-1-git-send-email-quic_linyyuan@quicinc.com/
> )
>     fix comment of kprobe/eprobe test case.
> 
> v5: (v4:
> https://lore.kernel.org/lkml/1654171861-24014-1-git-send-email-quic_linyyuan@quicinc.com/
> )
>     for eprobe, when only input a "SYSTEM.", it is invalid.
>     add Acked-by from Masami Hiramatsu (Google) <mhiramat@...nel.org>
> 
> v6: (v5:
> https://lore.kernel.org/lkml/1655168698-19898-1-git-send-email-quic_linyyuan@quicinc.com/
> )
>     change some code order according review comment from Tom Zanussi,
>     some minor changes.
> 
> v7: (v6:
> https://lore.kernel.org/lkml/1655776787-18133-1-git-send-email-quic_linyyuan@quicinc.com/
> )
>     move log index to a separate patch according review comment
> 
> Linyu Yuan (4):
>   tracing: eprobe: add missing log index
>   tracing: eprobe: remove duplicate is_good_name() operation
>   tracing: auto generate event name when create a group of events
>   selftests/ftrace: add test case for GRP/ only input
> 
>  Documentation/trace/kprobetrace.rst                |  8 +++----
>  Documentation/trace/uprobetracer.rst               |  8 +++----
>  kernel/trace/trace.c                               |  8 +++----
>  kernel/trace/trace_dynevent.c                      |  2 +-
>  kernel/trace/trace_eprobe.c                        | 28 +++++++++++-
> ----------
>  kernel/trace/trace_kprobe.c                        | 16 ++++++++----
> -
>  kernel/trace/trace_probe.c                         |  4 ++++
>  kernel/trace/trace_uprobe.c                        | 12 ++++++----
>  .../ftrace/test.d/dynevent/add_remove_eprobe.tc    |  9 ++++++-
>  .../ftrace/test.d/dynevent/add_remove_kprobe.tc    |  7 ++++++
>  10 files changed, 64 insertions(+), 38 deletions(-)
>