drivers/remoteproc/rcar_rproc.c:45:20: sparse: sparse: incorrect type in argument 1 (different address spaces)

From: kernel test robot
Date: Sat Jun 04 2022 - 07:31:40 EST


tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 032dcf09e2bf7c822be25b4abef7a6c913870d98
commit: 285892a74f1370a12249f765c6a4e3b16194852e remoteproc: Add Renesas rcar driver
date: 6 months ago
config: arc-allmodconfig (https://download.01.org/0day-ci/archive/20220604/202206041947.AZnEnWE1-lkp@xxxxxxxxx/config)
compiler: arceb-elf-gcc (GCC) 11.3.0
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: v0.6.4-18-g56afb504-dirty
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=285892a74f1370a12249f765c6a4e3b16194852e
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 285892a74f1370a12249f765c6a4e3b16194852e
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=arc SHELL=/bin/bash drivers/remoteproc/

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


sparse warnings: (new ones prefixed by >>)
drivers/remoteproc/rcar_rproc.c:28:12: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void *va @@ got void [noderef] __iomem * @@
drivers/remoteproc/rcar_rproc.c:28:12: sparse: expected void *va
drivers/remoteproc/rcar_rproc.c:28:12: sparse: got void [noderef] __iomem *
>> drivers/remoteproc/rcar_rproc.c:45:20: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const [noderef] __iomem *addr @@ got void *va @@
drivers/remoteproc/rcar_rproc.c:45:20: sparse: expected void const [noderef] __iomem *addr
drivers/remoteproc/rcar_rproc.c:45:20: sparse: got void *va

vim +45 drivers/remoteproc/rcar_rproc.c

40
41 static int rcar_rproc_mem_release(struct rproc *rproc,
42 struct rproc_mem_entry *mem)
43 {
44 dev_dbg(&rproc->dev, "unmap memory: %pa\n", &mem->dma);
> 45 iounmap(mem->va);
46
47 return 0;
48 }
49

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