linux-kernel - drivers/remoteproc/st_remoteproc.c:114:20: sparse: sparse: incorrect type in argument 1 (different address spaces)

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Date:   Wed, 9 Nov 2022 11:54:03 +0800
From:   kernel test robot <lkp@...el.com>
To:     Kefeng Wang <wangkefeng.wang@...wei.com>
Cc:     oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Will Deacon <will@...nel.org>, Christoph Hellwig <hch@....de>,
        Arnd Bergmann <arnd@...db.de>,
        "Russell King (Oracle)" <rmk+kernel@...linux.org.uk>
Subject: drivers/remoteproc/st_remoteproc.c:114:20: sparse: sparse: incorrect
 type in argument 1 (different address spaces)

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   f141df371335645ce29a87d9683a3f79fba7fd67
commit: d803336abdbc1bfacdb32b2cf9f4fdbee072b8ee ARM: mm: kill unused runtime hook arch_iounmap()
date:   5 months ago
config: arm-randconfig-s051-20221108
compiler: arm-linux-gnueabi-gcc (GCC) 12.1.0
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: v0.6.4-39-gce1a6720-dirty
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d803336abdbc1bfacdb32b2cf9f4fdbee072b8ee
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout d803336abdbc1bfacdb32b2cf9f4fdbee072b8ee
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=arm SHELL=/bin/bash drivers/firmware/tegra/ drivers/remoteproc/ drivers/video/fbdev/aty/

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

sparse warnings: (new ones prefixed by >>)
   drivers/remoteproc/st_remoteproc.c:98:12: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected void *va @@     got void [noderef] __iomem * @@
   drivers/remoteproc/st_remoteproc.c:98:12: sparse:     expected void *va
   drivers/remoteproc/st_remoteproc.c:98:12: sparse:     got void [noderef] __iomem *
>> drivers/remoteproc/st_remoteproc.c:114:20: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void volatile [noderef] __iomem *io_addr @@     got void *va @@
   drivers/remoteproc/st_remoteproc.c:114:20: sparse:     expected void volatile [noderef] __iomem *io_addr
   drivers/remoteproc/st_remoteproc.c:114:20: sparse:     got void *va
--
   drivers/video/fbdev/aty/atyfb_base.c:479:9: sparse: sparse: switch with no cases
>> drivers/video/fbdev/aty/atyfb_base.c:3741:37: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void volatile [noderef] __iomem *io_addr @@     got unsigned char [usertype] *addr @@
   drivers/video/fbdev/aty/atyfb_base.c:3741:37: sparse:     expected void volatile [noderef] __iomem *io_addr
   drivers/video/fbdev/aty/atyfb_base.c:3741:37: sparse:     got unsigned char [usertype] *addr

vim +114 drivers/remoteproc/st_remoteproc.c

3df52ed7f269a2 Loic Pallardy 2019-01-10  110  
3df52ed7f269a2 Loic Pallardy 2019-01-10  111  static int st_rproc_mem_release(struct rproc *rproc,
3df52ed7f269a2 Loic Pallardy 2019-01-10  112  				struct rproc_mem_entry *mem)
3df52ed7f269a2 Loic Pallardy 2019-01-10  113  {
3df52ed7f269a2 Loic Pallardy 2019-01-10 @114  	iounmap(mem->va);
3df52ed7f269a2 Loic Pallardy 2019-01-10  115  
3df52ed7f269a2 Loic Pallardy 2019-01-10  116  	return 0;
3df52ed7f269a2 Loic Pallardy 2019-01-10  117  }
3df52ed7f269a2 Loic Pallardy 2019-01-10  118  

:::::: The code at line 114 was first introduced by commit
:::::: 3df52ed7f269a25a5f97d6c03887c3ad3d012816 remoteproc: st: add reserved memory support

:::::: TO: Loic Pallardy <loic.pallardy@...com>
:::::: CC: Bjorn Andersson <bjorn.andersson@...aro.org>

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp

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