[linux-next:master 6467/10748] drivers/remoteproc/imx_dsp_rproc.c:602:49: sparse: sparse: incorrect type in argument 2 (different address spaces)

[linux-next:master 6467/10748] drivers/remoteproc/imx_dsp_rproc.c:602:49: sparse: sparse: incorrect type in argument 2 (different address spaces)

[kernel test robot]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   cf6c9d12750cf6f3f6aeffcd0bdb36b1ac993f44
commit: ec0e5549f3586d2cb99a05edd006d722ebad912c [6467/10748] remoteproc: imx_dsp_rproc: Add remoteproc driver for DSP on i.MX
config: arm-allyesconfig (attached as .config)
compiler: arm-linux-gnueabi-gcc (GCC) 11.2.0
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-dirty
        # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=ec0e5549f3586d2cb99a05edd006d722ebad912c
        git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
        git fetch --no-tags linux-next master
        git checkout ec0e5549f3586d2cb99a05edd006d722ebad912c
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=arm 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>


sparse warnings: (new ones prefixed by >>)
>> drivers/remoteproc/imx_dsp_rproc.c:602:49: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void *va @@     got void [noderef] __iomem *[assigned] cpu_addr @@
   drivers/remoteproc/imx_dsp_rproc.c:602:49: sparse:     expected void *va
   drivers/remoteproc/imx_dsp_rproc.c:602:49: sparse:     got void [noderef] __iomem *[assigned] cpu_addr
   drivers/remoteproc/imx_dsp_rproc.c:638:49: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void *va @@     got void [noderef] __iomem *[assigned] cpu_addr @@
   drivers/remoteproc/imx_dsp_rproc.c:638:49: sparse:     expected void *va
   drivers/remoteproc/imx_dsp_rproc.c:638:49: sparse:     got void [noderef] __iomem *[assigned] cpu_addr

vim +602 drivers/remoteproc/imx_dsp_rproc.c

   563	
   564	/**
   565	 * imx_dsp_rproc_add_carveout() - request mailbox channels
   566	 * @priv: private data pointer
   567	 *
   568	 * This function registers specified memory entry in @rproc carveouts list
   569	 * The carveouts can help to mapping the memory address for DSP.
   570	 */
   571	static int imx_dsp_rproc_add_carveout(struct imx_dsp_rproc *priv)
   572	{
   573		const struct imx_dsp_rproc_dcfg *dsp_dcfg = priv->dsp_dcfg;
   574		const struct imx_rproc_dcfg *dcfg = dsp_dcfg->dcfg;
   575		struct rproc *rproc = priv->rproc;
   576		struct device *dev = rproc->dev.parent;
   577		struct device_node *np = dev->of_node;
   578		struct of_phandle_iterator it;
   579		struct rproc_mem_entry *mem;
   580		struct reserved_mem *rmem;
   581		void __iomem *cpu_addr;
   582		int a;
   583		u64 da;
   584	
   585		/* Remap required addresses */
   586		for (a = 0; a < dcfg->att_size; a++) {
   587			const struct imx_rproc_att *att = &dcfg->att[a];
   588	
   589			if (!(att->flags & ATT_OWN))
   590				continue;
   591	
   592			if (imx_dsp_rproc_sys_to_da(priv, att->sa, att->size, &da))
   593				return -EINVAL;
   594	
   595			cpu_addr = devm_ioremap_wc(dev, att->sa, att->size);
   596			if (!cpu_addr) {
   597				dev_err(dev, "failed to map memory %p\n", &att->sa);
   598				return -ENOMEM;
   599			}
   600	
   601			/* Register memory region */
 > 602			mem = rproc_mem_entry_init(dev, cpu_addr, (dma_addr_t)att->sa,
   603						   att->size, da, NULL, NULL, "dsp_mem");
   604	
   605			if (mem)
   606				rproc_coredump_add_segment(rproc, da, att->size);
   607			else
   608				return -ENOMEM;
   609	
   610			rproc_add_carveout(rproc, mem);
   611		}
   612	
   613		of_phandle_iterator_init(&it, np, "memory-region", NULL, 0);
   614		while (of_phandle_iterator_next(&it) == 0) {
   615			/*
   616			 * Ignore the first memory region which will be used vdev buffer.
   617			 * No need to do extra handlings, rproc_add_virtio_dev will handle it.
   618			 */
   619			if (!strcmp(it.node->name, "vdev0buffer"))
   620				continue;
   621	
   622			rmem = of_reserved_mem_lookup(it.node);
   623			if (!rmem) {
   624				dev_err(dev, "unable to acquire memory-region\n");
   625				return -EINVAL;
   626			}
   627	
   628			if (imx_dsp_rproc_sys_to_da(priv, rmem->base, rmem->size, &da))
   629				return -EINVAL;
   630	
   631			cpu_addr = devm_ioremap_wc(dev, rmem->base, rmem->size);
   632			if (!cpu_addr) {
   633				dev_err(dev, "failed to map memory %p\n", &rmem->base);
   634				return -ENOMEM;
   635			}
   636	
   637			/* Register memory region */
   638			mem = rproc_mem_entry_init(dev, cpu_addr, (dma_addr_t)rmem->base,
   639						   rmem->size, da, NULL, NULL, it.node->name);
   640	
   641			if (mem)
   642				rproc_coredump_add_segment(rproc, da, rmem->size);
   643			else
   644				return -ENOMEM;
   645	
   646			rproc_add_carveout(rproc, mem);
   647		}
   648	
   649		return 0;
   650	}
   651	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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