From: Steven Rostedt <rostedt@goodmis.org>
To: Andrii Nakryiko <andrii.nakryiko@gmail.com>
Cc: Artem Savkov <asavkov@redhat.com>,
Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Andrii Nakryiko <andrii@kernel.org>,
bpf@vger.kernel.org, netdev@vger.kernel.org,
Masami Hiramatsu <mhiramat@kernel.org>,
linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org,
Thomas Gleixner <tglx@linutronix.de>,
linux-rt-users@vger.kernel.org, Jiri Olsa <jolsa@kernel.org>
Subject: Re: [RFC PATCH bpf-next] bpf: change syscall_nr type to int in struct syscall_tp_t
Date: Mon, 16 Oct 2023 11:53:42 -0400 [thread overview]
Message-ID: <20231016115342.30b3d357@gandalf.local.home> (raw)
In-Reply-To: <CAEf4Bza0ma+oRHYkHfQwmLPzJobRpq6-u2gog_uMNAHs0-KYiQ@mail.gmail.com>
On Fri, 13 Oct 2023 12:43:18 -0700
Andrii Nakryiko <andrii.nakryiko@gmail.com> wrote:
> > Correct. My Ack is based on the current way things are done upstream.
> > It was just that linux-rt showed the issue, where the code was not as
> > robust as it should have been. To me this was a correctness issue, not
> > an issue that had to do with how things are done in linux-rt.
>
> I think we should at least add some BUILD_BUG_ON() that validates
> offsets in syscall_tp_t matches the ones in syscall_trace_enter and
> syscall_trace_exit, to fail more loudly if there is any mismatch in
> the future. WDYT?
If you want to, feel free to send a patch.
>
> >
> > As for the changes in linux-rt, they are not upstream yet. I'll have my
> > comments on that code when that happens.
>
> Ah, ok, cool. I'd appreciate you cc'ing bpf@vger.kernel.org in that
> discussion, thank you!
If I remember ;-)
-- Steve
next prev parent reply other threads:[~2023-10-16 15:52 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-02 13:52 [RFC PATCH] tracing: change syscall number type in struct syscall_trace_* Artem Savkov
2023-10-03 22:11 ` Andrii Nakryiko
2023-10-04 7:02 ` Artem Savkov
2023-10-04 1:38 ` Steven Rostedt
2023-10-04 12:55 ` Artem Savkov
2023-10-05 12:34 ` Artem Savkov
2023-10-12 11:45 ` [RFC PATCH bpf-next] bpf: change syscall_nr type to int in struct syscall_tp_t Artem Savkov
2023-10-12 13:44 ` Steven Rostedt
2023-10-12 23:32 ` Andrii Nakryiko
2023-10-13 5:42 ` [PATCH " Artem Savkov
2023-10-13 19:50 ` patchwork-bot+netdevbpf
2023-10-13 6:01 ` [RFC PATCH " Artem Savkov
2023-10-13 14:00 ` Steven Rostedt
2023-10-13 19:43 ` Andrii Nakryiko
2023-10-16 15:53 ` Steven Rostedt [this message]
2023-10-13 3:13 ` Rod Webster
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