linux-kernel - Re: [PATCH v2 04/11] PCI: qcom-ep: Add eDMA support

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Message-ID: <20220910053222.GA8299@thinkpad>
Date:   Sat, 10 Sep 2022 11:02:22 +0530
From:   Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
To:     kernel test robot <lkp@...el.com>
Cc:     lpieralisi@...nel.org, robh@...nel.org, andersson@...nel.org,
        kbuild-all@...ts.01.org, kw@...ux.com, bhelgaas@...gle.com,
        linux-pci@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org, konrad.dybcio@...ainline.org,
        robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        devicetree@...r.kernel.org, dmitry.baryshkov@...aro.org
Subject: Re: [PATCH v2 04/11] PCI: qcom-ep: Add eDMA support

On Sat, Sep 03, 2022 at 10:36:53AM +0800, kernel test robot wrote:
> Hi Manivannan,
> 
> I love your patch! Yet something to improve:
> 
> [auto build test ERROR on robh/for-next]
> [also build test ERROR on linus/master v6.0-rc3 next-20220901]
> [cannot apply to helgaas-pci/next]
> [If your patch is applied to the wrong git tree, kindly drop us a note.
> And when submitting patch, we suggest to use '--base' as documented in
> https://git-scm.com/docs/git-format-patch#_base_tree_information]
> 
> url:    https://github.com/intel-lab-lkp/linux/commits/Manivannan-Sadhasivam/Improvements-to-the-Qcom-PCIe-Endpoint-driver/20220831-010315
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next
> config: arm-allyesconfig (https://download.01.org/0day-ci/archive/20220903/202209031046.rOZKOVqT-lkp@intel.com/config)
> compiler: arm-linux-gnueabi-gcc (GCC) 12.1.0
> reproduce (this is a W=1 build):
>         wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         # https://github.com/intel-lab-lkp/linux/commit/dec4c93b2077408cecddd53950905bf2411019b0
>         git remote add linux-review https://github.com/intel-lab-lkp/linux
>         git fetch --no-tags linux-review Manivannan-Sadhasivam/Improvements-to-the-Qcom-PCIe-Endpoint-driver/20220831-010315
>         git checkout dec4c93b2077408cecddd53950905bf2411019b0
>         # save the config file
>         mkdir build_dir && cp config build_dir/.config
>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash
> 
> If you fix the issue, kindly add following tag where applicable
> Reported-by: kernel test robot <lkp@...el.com>
> 
> All errors (new ones prefixed by >>):
> 
>    drivers/pci/controller/dwc/pcie-qcom-ep.c: In function 'qcom_pcie_ep_probe':
> >> drivers/pci/controller/dwc/pcie-qcom-ep.c:672:21: error: 'struct dw_pcie' has no member named 'edma'
>      672 |         pcie_ep->pci.edma.nr_irqs = 1;

This patch depends on the eDMA series from Sergey (Sorry, I forgot to mention
this in cover letter):
[PATCH RESEND v5 00/24] dmaengine: dw-edma: Add RP/EP local DMA controllers support

But the eDMA series is still getting reviews and I don't hear any news about
respin. So in the next revision I'm gonna drop this patch.

Thanks,
Mani

>          |                     ^
> 
> 
> vim +672 drivers/pci/controller/dwc/pcie-qcom-ep.c
> 
>    658	
>    659	static int qcom_pcie_ep_probe(struct platform_device *pdev)
>    660	{
>    661		struct device *dev = &pdev->dev;
>    662		struct qcom_pcie_ep *pcie_ep;
>    663		int ret;
>    664	
>    665		pcie_ep = devm_kzalloc(dev, sizeof(*pcie_ep), GFP_KERNEL);
>    666		if (!pcie_ep)
>    667			return -ENOMEM;
>    668	
>    669		pcie_ep->pci.dev = dev;
>    670		pcie_ep->pci.ops = &pci_ops;
>    671		pcie_ep->pci.ep.ops = &pci_ep_ops;
>  > 672		pcie_ep->pci.edma.nr_irqs = 1;
>    673		platform_set_drvdata(pdev, pcie_ep);
>    674	
>    675		ret = qcom_pcie_ep_get_resources(pdev, pcie_ep);
>    676		if (ret)
>    677			return ret;
>    678	
>    679		ret = qcom_pcie_enable_resources(pcie_ep);
>    680		if (ret) {
>    681			dev_err(dev, "Failed to enable resources: %d\n", ret);
>    682			return ret;
>    683		}
>    684	
>    685		ret = dw_pcie_ep_init(&pcie_ep->pci.ep);
>    686		if (ret) {
>    687			dev_err(dev, "Failed to initialize endpoint: %d\n", ret);
>    688			goto err_disable_resources;
>    689		}
>    690	
>    691		ret = qcom_pcie_ep_enable_irq_resources(pdev, pcie_ep);
>    692		if (ret)
>    693			goto err_disable_resources;
>    694	
>    695		return 0;
>    696	
>    697	err_disable_resources:
>    698		qcom_pcie_disable_resources(pcie_ep);
>    699	
>    700		return ret;
>    701	}
>    702	
> 
> -- 
> 0-DAY CI Kernel Test Service
> https://01.org/lkp

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