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SubjectRe: [PATCH v4 5/6] arm64: mm: Convert to GENERIC_IOREMAP
Hi Kefeng,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[also build test WARNING on v5.19-rc1 next-20220606]
[cannot apply to arm64/for-next/core arnd-asm-generic/master akpm-mm/mm-everything]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in]

base: f2906aa863381afb0015a9eb7fefad885d4e5a56
config: arm64-randconfig-s032-20220605 (
compiler: aarch64-linux-gcc (GCC) 11.3.0
wget -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# apt-get install sparse
# sparse version: v0.6.4-18-g56afb504-dirty
git remote add linux-review
git fetch --no-tags linux-review Kefeng-Wang/arm64-Cleanup-ioremap-and-support-ioremap_prot/20220606-154131
git checkout 3fd9e961045f81f0ee188501228f8425c3d868a8
# 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=arm64 SHELL=/bin/bash arch/arm64/mm/

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

sparse warnings: (new ones prefixed by >>)
>> arch/arm64/mm/ioremap.c:28:32: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const *x @@ got void [noderef] __iomem *addr @@
arch/arm64/mm/ioremap.c:28:32: sparse: expected void const *x
arch/arm64/mm/ioremap.c:28:32: sparse: got void [noderef] __iomem *addr

vim +28 arch/arm64/mm/ioremap.c

22 int iounmap_allowed(void __iomem *addr)
23 {
24 /*
25 * We could get an address outside vmalloc range in case
26 * of ioremap_cache() reusing a RAM mapping.
27 */
> 28 return is_vmalloc_addr(addr) ? 0 : -EINVAL;
29 }

0-DAY CI Kernel Test Service

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