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Wed, 09 Sep 2026 01:01:05 -0700 (PDT) Date: Wed, 9 Sep 2026 16:00:33 +0800 From: Inochi Amaoto To: Andy Shevchenko , Inochi Amaoto Cc: Jingoo Han , Manivannan Sadhasivam , Lorenzo Pieralisi , Krzysztof =?utf-8?Q?Wilczy=C5=84ski?= , Rob Herring , Bjorn Helgaas , Krzysztof Kozlowski , Conor Dooley , Yixun Lan , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Frank Li , Niklas Cassel , Sherry Sun , Arnd Bergmann , Christian Bruel , Krishna Chaitanya Chundru , Senchuan Zhang , Alex Elder , Xincheng Zhang , Randolph Lin , Siddharth Vadapalli , Vidya Sagar , Neil Armstrong , Danilo Krummrich , Uwe =?utf-8?Q?Kleine-K=C3=B6nig_=28The_Capable_Hub=29?= , Pengpeng Hou , Anirudh Srinivasan , Gustavo Pimentel , linux-pci@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, spacemit@lists.linux.dev, Yixun Lan , Longbin Li Subject: Re: [PATCH v5 1/6] PCI: spacemit-k1: Add device data support Message-ID: References: <20260907112606.465778-1-inochiama@gmail.com> <20260907112606.465778-2-inochiama@gmail.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Tue, Sep 08, 2026 at 01:26:44PM +0300, Andy Shevchenko wrote: > On Mon, Sep 07, 2026 at 07:26:00PM +0800, Inochi Amaoto wrote: > > To reuse the K1 PCIe driver logic for K3 PCIe controller, add device > > data to handle the K1 specific logic and make room for the incoming > > logic for K3. > > ... > > > static int k1_pcie_probe(struct platform_device *pdev) > > { > > + const struct k1_pcie_device_data *data; > > struct device *dev = &pdev->dev; > > struct k1_pcie *k1; > > int ret; > > > > + data = device_get_match_data(dev); > > + if (!data) > > + return -ENODEV; > > It's better to use -ENODATA which will help to distinguish from other ENODEV > cases (which are more often to happen). > OK, thanks > > k1 = devm_kzalloc(dev, sizeof(*k1), GFP_KERNEL); > > if (!k1) > > return -ENOMEM; > > -- > With Best Regards, > Andy Shevchenko > >