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Wed, 03 Sep 2025 06:41:33 -0700 (PDT) Received: from hoboy.vegasvil.org ([2600:1700:2430:6f6f:e2d5:5eff:fea5:802f]) by smtp.gmail.com with ESMTPSA id 00721157ae682-723a8329a4dsm13556527b3.22.2025.09.03.06.41.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 03 Sep 2025 06:41:33 -0700 (PDT) Date: Wed, 3 Sep 2025 06:41:30 -0700 From: Richard Cochran To: Wei Fang Cc: andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, vladimir.oltean@nxp.com, xiaoning.wang@nxp.com, Frank.Li@nxp.com, yangbo.lu@nxp.com, christophe.leroy@csgroup.eu, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-arm-kernel@lists.infradead.org, imx@lists.linux.dev Subject: Re: [PATCH net-next 0/3] ptp: add pulse signal loopback support for debugging Message-ID: References: <20250903083749.1388583-1-wei.fang@nxp.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250903083749.1388583-1-wei.fang@nxp.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250903_064135_040622_B78CF949 X-CRM114-Status: UNSURE ( 9.72 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, Sep 03, 2025 at 04:37:46PM +0800, Wei Fang wrote: > Some PTP devices support looping back the periodic pulse signal for > debugging, What kinds of debugs can be resolved by this loopback feature? It seems pointless to me... Thanks, Richard