linux-kernel - drivers/remoteproc/qcom_q6v5_pas.c:550:30: sparse: sparse: incorrect type in assignment (different address spaces)

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Message-ID: <202305270724.6Mc2pZjw-lkp@intel.com>
Date:   Sat, 27 May 2023 07:57:00 +0800
From:   kernel test robot <lkp@...el.com>
To:     Neil Armstrong <neil.armstrong@...aro.org>
Cc:     oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Bjorn Andersson <andersson@...nel.org>
Subject: drivers/remoteproc/qcom_q6v5_pas.c:550:30: sparse: sparse: incorrect
 type in assignment (different address spaces)

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   0d85b27b0cc6b5cf54567c5ad913a247a71583ce
commit: 29814986b82e820ae9d3eb7474cdcf66605bd114 remoteproc: qcom_q6v5_pas: add support for dtb co-firmware loading
date:   4 months ago
config: arm64-randconfig-s031-20230526 (https://download.01.org/0day-ci/archive/20230527/202305270724.6Mc2pZjw-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 12.1.0
reproduce:
        mkdir -p ~/bin
        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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=29814986b82e820ae9d3eb7474cdcf66605bd114
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 29814986b82e820ae9d3eb7474cdcf66605bd114
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 ~/bin/make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=arm64 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 ~/bin/make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=arm64 SHELL=/bin/bash drivers/remoteproc/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202305270724.6Mc2pZjw-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
   drivers/remoteproc/qcom_q6v5_pas.c:528:26: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected void *mem_region @@     got void [noderef] __iomem * @@
   drivers/remoteproc/qcom_q6v5_pas.c:528:26: sparse:     expected void *mem_region
   drivers/remoteproc/qcom_q6v5_pas.c:528:26: sparse:     got void [noderef] __iomem *
>> drivers/remoteproc/qcom_q6v5_pas.c:550:30: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected void *dtb_mem_region @@     got void [noderef] __iomem * @@
   drivers/remoteproc/qcom_q6v5_pas.c:550:30: sparse:     expected void *dtb_mem_region
   drivers/remoteproc/qcom_q6v5_pas.c:550:30: sparse:     got void [noderef] __iomem *

vim +550 drivers/remoteproc/qcom_q6v5_pas.c

   508	
   509	static int adsp_alloc_memory_region(struct qcom_adsp *adsp)
   510	{
   511		struct device_node *node;
   512		struct resource r;
   513		int ret;
   514	
   515		node = of_parse_phandle(adsp->dev->of_node, "memory-region", 0);
   516		if (!node) {
   517			dev_err(adsp->dev, "no memory-region specified\n");
   518			return -EINVAL;
   519		}
   520	
   521		ret = of_address_to_resource(node, 0, &r);
   522		of_node_put(node);
   523		if (ret)
   524			return ret;
   525	
   526		adsp->mem_phys = adsp->mem_reloc = r.start;
   527		adsp->mem_size = resource_size(&r);
   528		adsp->mem_region = devm_ioremap_wc(adsp->dev, adsp->mem_phys, adsp->mem_size);
   529		if (!adsp->mem_region) {
   530			dev_err(adsp->dev, "unable to map memory region: %pa+%zx\n",
   531				&r.start, adsp->mem_size);
   532			return -EBUSY;
   533		}
   534	
   535		if (!adsp->dtb_pas_id)
   536			return 0;
   537	
   538		node = of_parse_phandle(adsp->dev->of_node, "memory-region", 1);
   539		if (!node) {
   540			dev_err(adsp->dev, "no dtb memory-region specified\n");
   541			return -EINVAL;
   542		}
   543	
   544		ret = of_address_to_resource(node, 0, &r);
   545		if (ret)
   546			return ret;
   547	
   548		adsp->dtb_mem_phys = adsp->dtb_mem_reloc = r.start;
   549		adsp->dtb_mem_size = resource_size(&r);
 > 550		adsp->dtb_mem_region = devm_ioremap_wc(adsp->dev, adsp->dtb_mem_phys, adsp->dtb_mem_size);
   551		if (!adsp->dtb_mem_region) {
   552			dev_err(adsp->dev, "unable to map dtb memory region: %pa+%zx\n",
   553				&r.start, adsp->dtb_mem_size);
   554			return -EBUSY;
   555		}
   556	
   557		return 0;
   558	}
   559	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki