tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: c4185b16aba73929aa76f0d030efbe79ae867808 commit: d803336abdbc1bfacdb32b2cf9f4fdbee072b8ee [5126/7282] ARM: mm: kill unused runtime hook arch_iounmap() config: arm-randconfig-s032-20220703 (https://download.01.org/0day-ci/archive/20220704/202207040912.XbvaBqpS-lkp@xxxxxxxxx/config) compiler: arm-linux-gnueabi-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: v0.6.4-39-gce1a6720-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=d803336abdbc1bfacdb32b2cf9f4fdbee072b8ee git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout d803336abdbc1bfacdb32b2cf9f4fdbee072b8ee # 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=arm SHELL=/bin/bash arch/arm/kernel/ drivers/misc/ If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> sparse warnings: (new ones prefixed by >>) arch/arm/kernel/crash_dump.c:27:15: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void *vaddr @@ got void [noderef] __iomem * @@ arch/arm/kernel/crash_dump.c:27:15: sparse: expected void *vaddr arch/arm/kernel/crash_dump.c:27:15: sparse: got void [noderef] __iomem * >> arch/arm/kernel/crash_dump.c:33:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void volatile [noderef] __iomem *io_addr @@ got void *vaddr @@ arch/arm/kernel/crash_dump.c:33:17: sparse: expected void volatile [noderef] __iomem *io_addr arch/arm/kernel/crash_dump.c:33:17: sparse: got void *vaddr vim +33 arch/arm/kernel/crash_dump.c 67742c8168ed66 Mika Westerberg 2010-05-10 18 5d8de293c22489 Matthew Wilcox (Oracle 2022-04-29 19) ssize_t copy_oldmem_page(struct iov_iter *iter, unsigned long pfn, 5d8de293c22489 Matthew Wilcox (Oracle 2022-04-29 20) size_t csize, unsigned long offset) 67742c8168ed66 Mika Westerberg 2010-05-10 21 { 67742c8168ed66 Mika Westerberg 2010-05-10 22 void *vaddr; 67742c8168ed66 Mika Westerberg 2010-05-10 23 67742c8168ed66 Mika Westerberg 2010-05-10 24 if (!csize) 67742c8168ed66 Mika Westerberg 2010-05-10 25 return 0; 67742c8168ed66 Mika Westerberg 2010-05-10 26 8fad87bca7ac97 Liu Hua 2014-03-27 27 vaddr = ioremap(__pfn_to_phys(pfn), PAGE_SIZE); 67742c8168ed66 Mika Westerberg 2010-05-10 28 if (!vaddr) 67742c8168ed66 Mika Westerberg 2010-05-10 29 return -ENOMEM; 67742c8168ed66 Mika Westerberg 2010-05-10 30 5d8de293c22489 Matthew Wilcox (Oracle 2022-04-29 31) csize = copy_to_iter(vaddr + offset, csize, iter); 67742c8168ed66 Mika Westerberg 2010-05-10 32 67742c8168ed66 Mika Westerberg 2010-05-10 @33 iounmap(vaddr); :::::: The code at line 33 was first introduced by commit :::::: 67742c8168ed66fdd6cb5dc90e06c43cdc5bba07 ARM: 6120/1: kdump: implement copy_oldmem_page() :::::: TO: Mika Westerberg <mika.westerberg@xxxxxx> :::::: CC: Russell King <rmk+kernel@xxxxxxxxxxxxxxxx> -- 0-DAY CI Kernel Test Service https://01.org/lkp
