[acrn:6.17/linux 5/9] drivers/virt/acrn/hvlog.c:393:33: sparse: sparse: incorrect type in assignment (different address spaces)

[acrn:6.17/linux 5/9] drivers/virt/acrn/hvlog.c:393:33: sparse: sparse: incorrect type in assignment (different address spaces)

[kernel test robot]

tree:   https://github.com/projectacrn/acrn-kernel 6.17/linux
head:   d2ae39d099178698dc32d2165a32f4d6d13d107b
commit: f8aee7a312dbbc04e1f182a7a43bd55dfb092292 [5/9] virt: acrn: add acrn hypervisor log back
config: x86_64-randconfig-123-20260311 (https://download.01.org/0day-ci/archive/20260311/202603112056.8hRIlEeF-lkp@intel.com/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
sparse: v0.6.5-rc1
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260311/202603112056.8hRIlEeF-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202603112056.8hRIlEeF-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> drivers/virt/acrn/hvlog.c:393:33: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected void *static [toplevel] hvlog_buf_virtaddr_base @@     got void [noderef] __iomem * @@
   drivers/virt/acrn/hvlog.c:393:33: sparse:     expected void *static [toplevel] hvlog_buf_virtaddr_base
   drivers/virt/acrn/hvlog.c:393:33: sparse:     got void [noderef] __iomem *

vim +393 drivers/virt/acrn/hvlog.c

   377	
   378	int acrn_hvlog_init(void)
   379	{
   380		int idx, ret = 0;
   381		uint64_t cur_logbuf, last_logbuf;
   382	
   383		if (x86_hyper_type != X86_HYPER_ACRN) {
   384			pr_err("acrn_trace: not support acrn hypervisor!\n");
   385			return -EINVAL;
   386		}
   387	
   388		if (!hvlog_buf_phyaddr_base || !hvlog_buf_size) {
   389			pr_warn("no fixed memory reserve for hvlog.\n");
   390			return 0;
   391		}
   392	
 > 393		hvlog_buf_virtaddr_base = ioremap(hvlog_buf_phyaddr_base, hvlog_buf_size);
   394		if(!hvlog_buf_virtaddr_base) {
   395			pr_info("%s: Error ioremap hvlog memblock.\n", __func__);
   396			return 0;
   397		}
   398	
   399		pcpu_nr = total_cpus;;
   400		foreach_hvlog_type(idx, SBUF_HVLOG_TYPES) {
   401			acrn_hvlog_devs[idx] = kcalloc(pcpu_nr,
   402				sizeof(struct acrn_hvlog), GFP_KERNEL);
   403			if (!acrn_hvlog_devs[idx])
   404				return -ENOMEM;
   405		}
   406	
   407		assign_hvlog_buf_base(&cur_logbuf, &last_logbuf);
   408		ret = init_hvlog_dev(cur_logbuf, SBUF_CUR_HVLOG);
   409		if (ret) {
   410			pr_err("Failed to init cur hvlog devs, errno %d\n", ret);
   411			return ret;
   412		}
   413	
   414		/* If error happens for last hvlog devs setup, just print out an warn */
   415		ret = init_hvlog_dev(last_logbuf, SBUF_LAST_HVLOG);
   416		if (ret)
   417			pr_warn("Failed to init last hvlog devs, errno %d\n", ret);
   418	
   419		pr_info("Initialized hvlog module with %u cpu\n", pcpu_nr);
   420		return 0;
   421	}
   422	

-- 
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https://github.com/intel/lkp-tests/wiki