linux-kernel - drivers/remoteproc/xlnx_r5_remoteproc.c:209:20: sparse: sparse: cast removes address space '_

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Date:   Sat, 4 Nov 2023 07:30:26 +0800
From:   kernel test robot <lkp@...el.com>
To:     Tanmay Shah <tanmay.shah@....com>
Cc:     oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Mathieu Poirier <mathieu.poirier@...aro.org>,
        Ben Levinsky <ben.levinsky@....com>
Subject: drivers/remoteproc/xlnx_r5_remoteproc.c:209:20: sparse: sparse: cast
 removes address space '__iomem' of expression

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   e392ea4d4d00880bf94550151b1ace4f88a4b17a
commit: 6b291e8020a8bd90e94ee13d61f251040425c90d drivers: remoteproc: Add Xilinx r5 remoteproc driver
date:   11 months ago
config: arm64-randconfig-r122-20231102 (https://download.01.org/0day-ci/archive/20231104/202311040724.0CdOhSe6-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 13.2.0
reproduce: (https://download.01.org/0day-ci/archive/20231104/202311040724.0CdOhSe6-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202311040724.0CdOhSe6-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> drivers/remoteproc/xlnx_r5_remoteproc.c:209:20: sparse: sparse: cast removes address space '__iomem' of expression
   drivers/remoteproc/xlnx_r5_remoteproc.c:315:20: sparse: sparse: cast removes address space '__iomem' of expression

vim +/__iomem +209 drivers/remoteproc/xlnx_r5_remoteproc.c

   190	
   191	/*
   192	 * zynqmp_r5_mem_region_map()
   193	 * @rproc: single R5 core's corresponding rproc instance
   194	 * @mem: mem descriptor to map reserved memory-regions
   195	 *
   196	 * Callback to map va for memory-region's carveout.
   197	 *
   198	 * return 0 on success, otherwise non-zero value on failure
   199	 */
   200	static int zynqmp_r5_mem_region_map(struct rproc *rproc,
   201					    struct rproc_mem_entry *mem)
   202	{
   203		void __iomem *va;
   204	
   205		va = ioremap_wc(mem->dma, mem->len);
   206		if (IS_ERR_OR_NULL(va))
   207			return -ENOMEM;
   208	
 > 209		mem->va = (void *)va;
   210	
   211		return 0;
   212	}
   213	

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