Re: [PATCH v9 2/4] irqchip: Add IMX MU MSI controller driver

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Hi Frank,

I love your patch! Yet something to improve:

[auto build test ERROR on jonmason-ntb/ntb-next]
[also build test ERROR on robh/for-next linus/master v6.0-rc4 next-20220907]
[cannot apply to tip/irq/core]
[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/Frank-Li/PCI-EP-driver-support-MSI-doorbell-from-host/20220907-115114
base:   https://github.com/jonmason/ntb ntb-next
config: s390-randconfig-s033-20220907 (https://download.01.org/0day-ci/archive/20220908/202209080757.hQMfrrfm-lkp@xxxxxxxxx/config)
compiler: s390-linux-gcc (GCC) 12.1.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # apt-get install sparse
        # sparse version: v0.6.4-39-gce1a6720-dirty
        # https://github.com/intel-lab-lkp/linux/commit/c1f079e633c10b4f2f1f3c8f52e447d13fda8ddb
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Frank-Li/PCI-EP-driver-support-MSI-doorbell-from-host/20220907-115114
        git checkout c1f079e633c10b4f2f1f3c8f52e447d13fda8ddb
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=s390 SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All errors (new ones prefixed by >>):

   s390-linux-ld: drivers/irqchip/irq-imx-mu-msi.o: in function `imx_mu_of_init':
>> drivers/irqchip/irq-imx-mu-msi.c:316: undefined reference to `devm_platform_ioremap_resource_byname'


vim +316 drivers/irqchip/irq-imx-mu-msi.c

   288	
   289	static int __init imx_mu_of_init(struct device_node *dn,
   290					 struct device_node *parent,
   291					 const struct imx_mu_dcfg *cfg
   292					)
   293	{
   294		struct platform_device *pdev = of_find_device_by_node(dn);
   295		struct device_link *pd_link_a;
   296		struct device_link *pd_link_b;
   297		struct imx_mu_msi *msi_data;
   298		struct resource *res;
   299		struct device *pd_a;
   300		struct device *pd_b;
   301		struct device *dev;
   302		int ret;
   303		int irq;
   304	
   305		if (!pdev)
   306			return -ENODEV;
   307	
   308		dev = &pdev->dev;
   309	
   310		msi_data = devm_kzalloc(&pdev->dev, sizeof(*msi_data), GFP_KERNEL);
   311		if (!msi_data)
   312			return -ENOMEM;
   313	
   314		msi_data->cfg = cfg;
   315	
 > 316		msi_data->regs = devm_platform_ioremap_resource_byname(pdev, "processor-a-side");
   317		if (IS_ERR(msi_data->regs)) {
   318			dev_err(&pdev->dev, "failed to initialize 'regs'\n");
   319			return PTR_ERR(msi_data->regs);
   320		}
   321	
   322		res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "processor-b-side");
   323		if (!res)
   324			return -EIO;
   325	
   326		msi_data->msiir_addr = res->start + msi_data->cfg->xTR;
   327	
   328		irq = platform_get_irq(pdev, 0);
   329		if (irq <= 0)
   330			return -ENODEV;
   331	
   332		platform_set_drvdata(pdev, msi_data);
   333	
   334		msi_data->clk = devm_clk_get(dev, NULL);
   335		if (IS_ERR(msi_data->clk)) {
   336			if (PTR_ERR(msi_data->clk) != -ENOENT)
   337				return PTR_ERR(msi_data->clk);
   338	
   339			msi_data->clk = NULL;
   340		}
   341	
   342		pd_a = dev_pm_domain_attach_by_name(dev, "processor-a-side");
   343		if (IS_ERR(pd_a))
   344			return PTR_ERR(pd_a);
   345	
   346		pd_b = dev_pm_domain_attach_by_name(dev, "processor-b-side");
   347		if (IS_ERR(pd_b))
   348			return PTR_ERR(pd_b);
   349	
   350		pd_link_a = device_link_add(dev, pd_a,
   351				DL_FLAG_STATELESS |
   352				DL_FLAG_PM_RUNTIME |
   353				DL_FLAG_RPM_ACTIVE);
   354	
   355		if (!pd_link_a) {
   356			dev_err(dev, "Failed to add device_link to mu a.\n");
   357			goto err_pd_a;
   358		}
   359	
   360		pd_link_b = device_link_add(dev, pd_b,
   361				DL_FLAG_STATELESS |
   362				DL_FLAG_PM_RUNTIME |
   363				DL_FLAG_RPM_ACTIVE);
   364	
   365	
   366		if (!pd_link_b) {
   367			dev_err(dev, "Failed to add device_link to mu a.\n");
   368			goto err_pd_b;
   369		}
   370	
   371		ret = imx_mu_msi_domains_init(msi_data, dev);
   372		if (ret)
   373			goto err_dm_init;
   374	
   375		irq_set_chained_handler_and_data(irq,
   376						 imx_mu_msi_irq_handler,
   377						 msi_data);
   378	
   379		pm_runtime_enable(dev);
   380	
   381		return 0;
   382	
   383	err_dm_init:
   384		device_link_remove(dev,	pd_b);
   385	err_pd_b:
   386		device_link_remove(dev, pd_a);
   387	err_pd_a:
   388		return -EINVAL;
   389	}
   390	

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp



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