[gerg-m68knommu:armnommu 3/3] arch/arm/mm/alignment.c:776:25: sparse: sparse: incorrect type in argument 1 (different address spaces)
kernel test robot <[email protected]> Sat, 01 Aug 2026 04:29:09 +0800
| Newsgroups | org.kernel.vger.linux-m68k,dev.linux.lists.oe-kbuild-all |
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| Message-ID | <[email protected]> |
tree: https://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu.git armnommu head: c3abc5777e04ce2e70f0d1f870409b9332e3b8ea commit: c3abc5777e04ce2e70f0d1f870409b9332e3b8ea [3/3] ARM: versatile: support configuring versatile machine for no-MMU config: arm-randconfig-r133-20260731 (https://download.01.org/0day-ci/archive/20260801/[email protected]/config) compiler: arm-linux-gnueabi-gcc (GCC) 8.5.0 sparse: v0.6.5-rc1 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260801/[email protected]/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <[email protected]> | Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/ sparse warnings: (new ones prefixed by >>) >> arch/arm/mm/alignment.c:776:25: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __user *ptr @@ got unsigned int [usertype] *ip @@ arch/arm/mm/alignment.c:776:25: sparse: expected void const volatile [noderef] __user *ptr arch/arm/mm/alignment.c:776:25: sparse: got unsigned int [usertype] *ip >> arch/arm/mm/alignment.c:791:25: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __user *ptr @@ got unsigned short [usertype] *ip @@ arch/arm/mm/alignment.c:791:25: sparse: expected void const volatile [noderef] __user *ptr arch/arm/mm/alignment.c:791:25: sparse: got unsigned short [usertype] *ip vim +776 arch/arm/mm/alignment.c c2860d43f5dfab George G. Davis 2009-06-04 769 1bb9fb0a147f9d Russell King 2019-09-06 770 static int alignment_get_arm(struct pt_regs *regs, u32 *ip, u32 *inst) 67e15fa5b487ad Russell King 2019-08-31 771 { 67e15fa5b487ad Russell King 2019-08-31 772 u32 instr = 0; 67e15fa5b487ad Russell King 2019-08-31 773 int fault; 67e15fa5b487ad Russell King 2019-08-31 774 67e15fa5b487ad Russell King 2019-08-31 775 if (user_mode(regs)) 67e15fa5b487ad Russell King 2019-08-31 @776 fault = get_user(instr, ip); 67e15fa5b487ad Russell King 2019-08-31 777 else 25f12ae45fc193 Christoph Hellwig 2020-06-17 778 fault = get_kernel_nofault(instr, ip); 67e15fa5b487ad Russell King 2019-08-31 779 67e15fa5b487ad Russell King 2019-08-31 780 *inst = __mem_to_opcode_arm(instr); 67e15fa5b487ad Russell King 2019-08-31 781 67e15fa5b487ad Russell King 2019-08-31 782 return fault; 67e15fa5b487ad Russell King 2019-08-31 783 } 67e15fa5b487ad Russell King 2019-08-31 784 67e15fa5b487ad Russell King 2019-08-31 785 static int alignment_get_thumb(struct pt_regs *regs, u16 *ip, u16 *inst) 67e15fa5b487ad Russell King 2019-08-31 786 { 67e15fa5b487ad Russell King 2019-08-31 787 u16 instr = 0; 67e15fa5b487ad Russell King 2019-08-31 788 int fault; 67e15fa5b487ad Russell King 2019-08-31 789 67e15fa5b487ad Russell King 2019-08-31 790 if (user_mode(regs)) 67e15fa5b487ad Russell King 2019-08-31 @791 fault = get_user(instr, ip); 67e15fa5b487ad Russell King 2019-08-31 792 else 25f12ae45fc193 Christoph Hellwig 2020-06-17 793 fault = get_kernel_nofault(instr, ip); 67e15fa5b487ad Russell King 2019-08-31 794 67e15fa5b487ad Russell King 2019-08-31 795 *inst = __mem_to_opcode_thumb16(instr); 67e15fa5b487ad Russell King 2019-08-31 796 67e15fa5b487ad Russell King 2019-08-31 797 return fault; 67e15fa5b487ad Russell King 2019-08-31 798 } 67e15fa5b487ad Russell King 2019-08-31 799 :::::: The code at line 776 was first introduced by commit :::::: 67e15fa5b487adb9b78a92789eeff2d6ec8f5cee ARM: mm: fix alignment handler faults under memory pressure :::::: TO: Russell King <[email protected]> :::::: CC: Russell King <[email protected]> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki