linux-kernel - Re: [PATCH 2/2] drivers: remoteproc: Add C906L controller for Sophgo CV1800B SoC

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Message-ID: <202506101252.4HRoLbL7-lkp@intel.com>
Date: Tue, 10 Jun 2025 13:15:10 +0800
From: kernel test robot <lkp@...el.com>
To: Junhui Liu <junhui.liu@...moral.tech>,
	Bjorn Andersson <andersson@...nel.org>,
	Mathieu Poirier <mathieu.poirier@...aro.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Chen Wang <unicorn_wang@...look.com>,
	Inochi Amaoto <inochiama@...il.com>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	Paul Walmsley <paul.walmsley@...ive.com>,
	Palmer Dabbelt <palmer@...belt.com>,
	Albert Ou <aou@...s.berkeley.edu>, Alexandre Ghiti <alex@...ti.fr>
Cc: oe-kbuild-all@...ts.linux.dev, linux-remoteproc@...r.kernel.org,
	devicetree@...r.kernel.org, sophgo@...ts.linux.dev,
	linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org
Subject: Re: [PATCH 2/2] drivers: remoteproc: Add C906L controller for Sophgo
 CV1800B SoC

Hi Junhui,

kernel test robot noticed the following build warnings:

[auto build test WARNING on 8630c59e99363c4b655788fd01134aef9bcd9264]

url:    https://github.com/intel-lab-lkp/linux/commits/Junhui-Liu/dt-bindings-remoteproc-Add-C906L-rproc-for-Sophgo-CV1800B-SoC/20250608-104249
base:   8630c59e99363c4b655788fd01134aef9bcd9264
patch link:    https://lore.kernel.org/r/20250608-cv1800-rproc-v1-2-57cf66cdf6a3%40pigmoral.tech
patch subject: [PATCH 2/2] drivers: remoteproc: Add C906L controller for Sophgo CV1800B SoC
config: nios2-randconfig-r132-20250610 (https://download.01.org/0day-ci/archive/20250610/202506101252.4HRoLbL7-lkp@intel.com/config)
compiler: nios2-linux-gcc (GCC) 8.5.0
reproduce: (https://download.01.org/0day-ci/archive/20250610/202506101252.4HRoLbL7-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/202506101252.4HRoLbL7-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> drivers/remoteproc/sophgo_cv1800b_c906l.c:41:12: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected void *va @@     got void [noderef] __iomem * @@
   drivers/remoteproc/sophgo_cv1800b_c906l.c:41:12: sparse:     expected void *va
   drivers/remoteproc/sophgo_cv1800b_c906l.c:41:12: sparse:     got void [noderef] __iomem *
>> drivers/remoteproc/sophgo_cv1800b_c906l.c:54:20: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void [noderef] __iomem *addr @@     got void *va @@
   drivers/remoteproc/sophgo_cv1800b_c906l.c:54:20: sparse:     expected void [noderef] __iomem *addr
   drivers/remoteproc/sophgo_cv1800b_c906l.c:54:20: sparse:     got void *va

vim +41 drivers/remoteproc/sophgo_cv1800b_c906l.c

    35	
    36	static int cv1800b_c906l_mem_alloc(struct rproc *rproc,
    37					   struct rproc_mem_entry *mem)
    38	{
    39		void *va;
    40	
  > 41		va = ioremap_wc(mem->dma, mem->len);
    42		if (IS_ERR_OR_NULL(va))
    43			return -ENOMEM;
    44	
    45		/* Update memory entry va */
    46		mem->va = va;
    47	
    48		return 0;
    49	}
    50	
    51	static int cv1800b_c906l_mem_release(struct rproc *rproc,
    52					     struct rproc_mem_entry *mem)
    53	{
  > 54		iounmap(mem->va);
    55	
    56		return 0;
    57	}
    58	

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