[kbuild-all] Re: arch/arm/mm/fault.c:210:24: sparse: sparse: incorrect type in return expression (different base types)

https://lore.kernel.org/linux-arm-kernel/20211115075834.156838-1-wangkefe... On 2021/11/17 4:14, kernel test robot wrote: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master > head: 8ab774587903771821b59471cc723bba6d893942 > commit: caed89dab0ca0e73d7e016c04e1f5957650f4ec3 ARM: 9128/1: mm: Refactor the __do_page_fault() > date: 4 weeks ago > config: arm-randconfig-s031-20211116 (attached as .config) > compiler: arm-linux-gnueabi-gcc (GCC) 11.2.0 > 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-dirty > # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit... > git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git > git fetch --no-tags linus master > git checkout caed89dab0ca0e73d7e016c04e1f5957650f4ec3 > # save the attached .config to linux build tree > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=arm SHELL=/bin/bash arch/arm/mm/ > > If you fix the issue, kindly add following tag as appropriate > Reported-by: kernel test robot <lkp(a)intel.com&gt; > > > sparse warnings: (new ones prefixed by >>) >>> arch/arm/mm/fault.c:210:24: sparse: sparse: incorrect type in return expression (different base types) @@ expected restricted vm_fault_t @@ got int @@ > arch/arm/mm/fault.c:210:24: sparse: expected restricted vm_fault_t > arch/arm/mm/fault.c:210:24: sparse: got int > arch/arm/mm/fault.c:214:32: sparse: sparse: incorrect type in return expression (different base types) @@ expected restricted vm_fault_t @@ got int @@ > arch/arm/mm/fault.c:214:32: sparse: expected restricted vm_fault_t > arch/arm/mm/fault.c:214:32: sparse: got int > arch/arm/mm/fault.c:216:32: sparse: sparse: incorrect type in return expression (different base types) @@ expected restricted vm_fault_t @@ got int @@ > arch/arm/mm/fault.c:216:32: sparse: expected restricted vm_fault_t > arch/arm/mm/fault.c:216:32: sparse: got int > arch/arm/mm/fault.c:218:32: sparse: sparse: incorrect type in return expression (different base types) @@ expected restricted vm_fault_t @@ got int @@ > arch/arm/mm/fault.c:218:32: sparse: expected restricted vm_fault_t > arch/arm/mm/fault.c:218:32: sparse: got int > arch/arm/mm/fault.c:226:24: sparse: sparse: incorrect type in return expression (different base types) @@ expected restricted vm_fault_t @@ got int @@ > arch/arm/mm/fault.c:226:24: sparse: expected restricted vm_fault_t > arch/arm/mm/fault.c:226:24: sparse: got int > arch/arm/mm/fault.c:312:13: sparse: sparse: restricted vm_fault_t degrades to integer > arch/arm/mm/fault.c:312:13: sparse: sparse: restricted vm_fault_t degrades to integer > arch/arm/mm/fault.c:345:24: sparse: sparse: restricted vm_fault_t degrades to integer >