linux-kernel - Re: [PATCH net-next] udp: Add tracepoint for udp

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <67a977bc-a4b9-4c8b-bf2f-9e9e6bb0811e@redhat.com>
Date: Thu, 17 Apr 2025 08:57:24 +0200
From: Paolo Abeni <pabeni@...hat.com>
To: Breno Leitao <leitao@...ian.org>,
 Willem de Bruijn <willemdebruijn.kernel@...il.com>,
 Steven Rostedt <rostedt@...dmis.org>, Masami Hiramatsu
 <mhiramat@...nel.org>, Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
 "David S. Miller" <davem@...emloft.net>, David Ahern <dsahern@...nel.org>,
 Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>,
 Simon Horman <horms@...nel.org>, kuniyu@...zon.com
Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-trace-kernel@...r.kernel.org, yonghong.song@...ux.dev,
 song@...nel.org, kernel-team@...a.com
Subject: Re: [PATCH net-next] udp: Add tracepoint for udp_sendmsg()

On 4/16/25 9:23 PM, Breno Leitao wrote:
> Add a lightweight tracepoint to monitor UDP send message operations,
> similar to the recently introduced tcp_sendmsg_locked() trace event in
> commit 0f08335ade712 ("trace: tcp: Add tracepoint for
> tcp_sendmsg_locked()")

Why is it needed? what would add on top of a plain perf probe, which
will be always available for such function with such argument, as the
function can't be inlined?

Thanks,

Paolo