From: kernel test robot <lkp@intel.com>
To: Greg Ungerer <gerg@uclinux.org>
Cc: oe-kbuild-all@lists.linux.dev, linux-m68k@lists.linux-m68k.org,
uclinux-dev@uclinux.org
Subject: [gerg-m68knommu:armnommu 3/3] arch/arm/mm/alignment.c:776:25: sparse: sparse: incorrect type in argument 1 (different address spaces)
Date: Sun, 28 Dec 2025 16:24:15 +0800 [thread overview]
Message-ID: <202512281641.zItti8ka-lkp@intel.com> (raw)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu.git armnommu
head: edf19f0aab57e81f4391d800d6845527413ca77b
commit: edf19f0aab57e81f4391d800d6845527413ca77b [3/3] ARM: versatile: support configuring versatile machine for no-MMU
config: arm-randconfig-r111-20251228 (https://download.01.org/0day-ci/archive/20251228/202512281641.zItti8ka-lkp@intel.com/config)
compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 4ef602d446057dabf5f61fb221669ecbeda49279)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251228/202512281641.zItti8ka-lkp@intel.com/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 <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202512281641.zItti8ka-lkp@intel.com/
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 <rmk+kernel@armlinux.org.uk>
:::::: CC: Russell King <rmk+kernel@armlinux.org.uk>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
reply other threads:[~2025-12-28 8:25 UTC|newest]
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