linux-kernel - drivers/remoteproc/imx_rproc.c:413:17: sparse: sparse: cast removes address space '_

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Message-ID: <202112060443.rxnbCl3h-lkp@intel.com>
Date:   Mon, 6 Dec 2021 04:50:33 +0800
From:   kernel test robot <lkp@...el.com>
To:     Peng Fan <peng.fan@....com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Mathieu Poirier <mathieu.poirier@...aro.org>
Subject: drivers/remoteproc/imx_rproc.c:413:17: sparse: sparse: cast removes
 address space '__iomem' of expression

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   944207047ca4dabe8e288f653e7ec6da05e70230
commit: 5e4c1243071d29ed5511121d044116b942ba6a7b remoteproc: imx_rproc: support remote cores booted before Linux Kernel
date:   8 months ago
config: arm-allyesconfig (https://download.01.org/0day-ci/archive/20211206/202112060443.rxnbCl3h-lkp@intel.com/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/torvalds/linux.git/commit/?id=5e4c1243071d29ed5511121d044116b942ba6a7b
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 5e4c1243071d29ed5511121d044116b942ba6a7b
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=arm SHELL=/bin/bash drivers/dma/ drivers/gpu/drm/tegra/ drivers/net/wireless/mediatek/mt76/mt7915/ drivers/remoteproc/ drivers/staging/ fs/proc/

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


sparse warnings: (new ones prefixed by >>)
   drivers/remoteproc/imx_rproc.c:299:12: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected void *va @@     got void [noderef] __iomem * @@
   drivers/remoteproc/imx_rproc.c:299:12: sparse:     expected void *va
   drivers/remoteproc/imx_rproc.c:299:12: sparse:     got void [noderef] __iomem *
   drivers/remoteproc/imx_rproc.c:316:20: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void volatile [noderef] __iomem *iomem_cookie @@     got void *va @@
   drivers/remoteproc/imx_rproc.c:316:20: sparse:     expected void volatile [noderef] __iomem *iomem_cookie
   drivers/remoteproc/imx_rproc.c:316:20: sparse:     got void *va
>> drivers/remoteproc/imx_rproc.c:413:17: sparse: sparse: cast removes address space '__iomem' of expression

vim +/__iomem +413 drivers/remoteproc/imx_rproc.c

   403	
   404	static struct resource_table *imx_rproc_get_loaded_rsc_table(struct rproc *rproc, size_t *table_sz)
   405	{
   406		struct imx_rproc *priv = rproc->priv;
   407	
   408		/* The resource table has already been mapped in imx_rproc_addr_init */
   409		if (!priv->rsc_table)
   410			return NULL;
   411	
   412		*table_sz = SZ_1K;
 > 413		return (struct resource_table *)priv->rsc_table;
   414	}
   415	

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