Re: [PATCH v1 2/4] mhi_bus: controller: MHI support for QCOM modems

[kbuild test robot <lkp@intel.com>]

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Hi Sujeev,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v4.17-rc2 next-20180426]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Sujeev-Dias/mhi_bus-core-Add-support-for-MHI-host-interface/20180428-065959
config: alpha-allmodconfig (attached as .config)
compiler: alpha-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=alpha 

All errors (new ones prefixed by >>):

   In file included from drivers/bus/mhi/controllers/mhi_qcom.c:25:0:
   include/linux/mhi.h:658:15: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'int'
    static inlint int mhi_force_rddm_mode(struct mhi_controller *mhi_cntrl)
                  ^~~
   drivers/bus/mhi/controllers/mhi_qcom.c: In function 'mhi_platform_probe':
>> drivers/bus/mhi/controllers/mhi_qcom.c:587:17: error: implicit declaration of function 'memblock_start_of_DRAM'; did you mean 'memblock_alloc'? [-Werror=implicit-function-declaration]
      addr_win[0] = memblock_start_of_DRAM();
                    ^~~~~~~~~~~~~~~~~~~~~~
                    memblock_alloc
>> drivers/bus/mhi/controllers/mhi_qcom.c:588:17: error: implicit declaration of function 'memblock_end_of_DRAM'; did you mean 'memblock_alloc'? [-Werror=implicit-function-declaration]
      addr_win[1] = memblock_end_of_DRAM();
                    ^~~~~~~~~~~~~~~~~~~~
                    memblock_alloc
   At top level:
   drivers/bus/mhi/controllers/mhi_qcom.c:238:12: warning: 'mhi_system_resume' defined but not used [-Wunused-function]
    static int mhi_system_resume(struct device *dev)
               ^~~~~~~~~~~~~~~~~
   drivers/bus/mhi/controllers/mhi_qcom.c:186:12: warning: 'mhi_runtime_idle' defined but not used [-Wunused-function]
    static int mhi_runtime_idle(struct device *dev)
               ^~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors

vim +587 drivers/bus/mhi/controllers/mhi_qcom.c

   533	
   534	static int mhi_platform_probe(struct platform_device *pdev)
   535	{
   536		struct mhi_controller *mhi_cntrl;
   537		struct mhi_dev *mhi_dev;
   538		struct device_node *of_node = pdev->dev.of_node;
   539		u64 addr_win[2];
   540		int ret;
   541	
   542		if (!of_node)
   543			return -ENODEV;
   544	
   545		mhi_cntrl = mhi_alloc_controller(sizeof(*mhi_dev));
   546		if (!mhi_cntrl)
   547			return -ENOMEM;
   548	
   549		mhi_dev = mhi_controller_get_devdata(mhi_cntrl);
   550	
   551		/* get pci bus topology for this node */
   552		ret = of_property_read_u32(of_node, "qcom,pci-dev-id",
   553					   &mhi_cntrl->dev_id);
   554		if (ret)
   555			mhi_cntrl->dev_id = PCI_ANY_ID;
   556	
   557		ret = of_property_read_u32(of_node, "qcom,pci-domain",
   558					   &mhi_cntrl->domain);
   559		if (ret)
   560			goto error_probe;
   561	
   562		ret = of_property_read_u32(of_node, "qcom,pci-bus", &mhi_cntrl->bus);
   563		if (ret)
   564			goto error_probe;
   565	
   566		ret = of_property_read_u32(of_node, "qcom,pci-slot", &mhi_cntrl->slot);
   567		if (ret)
   568			goto error_probe;
   569	
   570		ret = of_property_read_u32(of_node, "qcom,smmu-cfg",
   571					   &mhi_dev->smmu_cfg);
   572		if (ret)
   573			goto error_probe;
   574	
   575		/* if s1 translation enabled pull iova addr from dt */
   576		if (mhi_dev->smmu_cfg & MHI_SMMU_ATTACH &&
   577		    !(mhi_dev->smmu_cfg & MHI_SMMU_S1_BYPASS)) {
   578			ret = of_property_count_elems_of_size(of_node, "qcom,addr-win",
   579							      sizeof(addr_win));
   580			if (ret != 1)
   581				goto error_probe;
   582			ret = of_property_read_u64_array(of_node, "qcom,addr-win",
   583							 addr_win, 2);
   584			if (ret)
   585				goto error_probe;
   586		} else {
 > 587			addr_win[0] = memblock_start_of_DRAM();
 > 588			addr_win[1] = memblock_end_of_DRAM();
   589		}
   590	
   591		mhi_dev->iova_start = addr_win[0];
   592		mhi_dev->iova_stop = addr_win[1];
   593	
   594		/*
   595		 * if S1 is enabled, set MHI_CTRL start address to 0 so we can use low
   596		 * level mapping api to map buffers outside of smmu domain
   597		 */
   598		if (mhi_dev->smmu_cfg & MHI_SMMU_ATTACH &&
   599		    !(mhi_dev->smmu_cfg & MHI_SMMU_S1_BYPASS))
   600			mhi_cntrl->iova_start = 0;
   601		else
   602			mhi_cntrl->iova_start = addr_win[0];
   603	
   604		mhi_cntrl->iova_stop = mhi_dev->iova_stop;
   605		mhi_cntrl->of_node = of_node;
   606	
   607		/* setup power management apis */
   608		mhi_cntrl->status_cb = mhi_status_cb;
   609		mhi_cntrl->runtime_get = mhi_runtime_get;
   610		mhi_cntrl->runtime_put = mhi_runtime_put;
   611		mhi_cntrl->link_status = mhi_link_status;
   612	
   613		mhi_dev->pdev = pdev;
   614	
   615		ret = mhi_arch_platform_init(mhi_dev);
   616		if (ret)
   617			goto error_probe;
   618	
   619		ret = of_register_mhi_controller(mhi_cntrl);
   620		if (ret)
   621			goto error_register;
   622	
   623		if (mhi_cntrl->parent)
   624			debugfs_create_file("debug_mode", 0444, mhi_cntrl->parent,
   625					    mhi_cntrl, &debugfs_debug_ops);
   626	
   627		return 0;
   628	
   629	error_register:
   630		mhi_arch_platform_deinit(mhi_dev);
   631	
   632	error_probe:
   633		mhi_free_controller(mhi_cntrl);
   634	
   635		return -EINVAL;
   636	};
   637	

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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