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[146.241.55.253]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-39eaf43ce3bsm19526728f8f.66.2025.04.16.23.57.24 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 16 Apr 2025 23:57:25 -0700 (PDT) Message-ID: <67a977bc-a4b9-4c8b-bf2f-9e9e6bb0811e@redhat.com> Date: Thu, 17 Apr 2025 08:57:24 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH net-next] udp: Add tracepoint for udp_sendmsg() To: Breno Leitao , Willem de Bruijn , Steven Rostedt , Masami Hiramatsu , Mathieu Desnoyers , "David S. Miller" , David Ahern , Eric Dumazet , Jakub Kicinski , Simon Horman , kuniyu@amazon.com Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, yonghong.song@linux.dev, song@kernel.org, kernel-team@meta.com References: <20250416-udp_sendmsg-v1-1-1a886b8733c2@debian.org> Content-Language: en-US From: Paolo Abeni In-Reply-To: <20250416-udp_sendmsg-v1-1-1a886b8733c2@debian.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit 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