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Thu, 28 Nov 2024 18:51:22 -0800 (PST) Message-ID: <2bc6b1e4-6d39-4bae-85cf-0d0eca077667@gmail.com> Date: Fri, 29 Nov 2024 10:51:18 +0800 Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] tracing: Add WARN_ON_ONCE for syscall_nr check To: Steven Rostedt Cc: mhiramat@kernel.org, mathieu.desnoyers@efficios.com, linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org References: <20241128115319.305523-1-chen.dylane@gmail.com> <20241128074623.063bf253@rorschach.local.home> <8d4796dc-ef5b-43d8-8ec0-3891b7994428@gmail.com> <20241128100324.05bc4c32@gandalf.local.home> From: Tao Chen In-Reply-To: <20241128100324.05bc4c32@gandalf.local.home> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit 在 2024/11/28 23:03, Steven Rostedt 写道: > On Thu, 28 Nov 2024 21:15:31 +0800 > Tao Chen wrote: > >> Hi, Steve, thank you for your reply, as you say, so what about >> pr_warn_once api just to print something ? > > A better solution is for there to be a return code or something where the > tracers (perf or ftrace) can record in the trace that the system call is > not supported. > > -- Steve Hi，Steve，thank you for your suggestion. I'll see if it can be implemented. -- Best Regards Dylane Chen