tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   de90d455a35e474a184c898e66a6a108c3a99434
commit: f640b1a57f8e9e513e26aa5b3ee0b905dfebfcf2 [8145/11162] ARM: 9225/1: Make the dumped instructions are consistent with the disassembled ones
config: arm-randconfig-s043-20220925
compiler: arm-linux-gnueabi-gcc (GCC) 12.1.0
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=f640b1a57f8e9e513e26aa5b3ee0b905dfebfcf2
        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 f640b1a57f8e9e513e26aa5b3ee0b905dfebfcf2
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=arm SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>

sparse warnings: (new ones prefixed by >>)
   arch/arm/kernel/traps.c:191:39: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __user *ptr @@     got unsigned short [usertype] * @@
   arch/arm/kernel/traps.c:191:39: sparse:     expected void const volatile [noderef] __user *ptr
   arch/arm/kernel/traps.c:191:39: sparse:     got unsigned short [usertype] *
   arch/arm/kernel/traps.c:193:39: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __user *ptr @@     got unsigned int [usertype] * @@
   arch/arm/kernel/traps.c:193:39: sparse:     expected void const volatile [noderef] __user *ptr
   arch/arm/kernel/traps.c:193:39: sparse:     got unsigned int [usertype] *
>> arch/arm/kernel/traps.c:198:37: sparse: sparse: incorrect type in assignment (different base types) @@     expected unsigned int [addressable] [assigned] val @@     got restricted __le16 [usertype] @@
   arch/arm/kernel/traps.c:198:37: sparse:     expected unsigned int [addressable] [assigned] val
   arch/arm/kernel/traps.c:198:37: sparse:     got restricted __le16 [usertype]
>> arch/arm/kernel/traps.c:200:37: sparse: sparse: incorrect type in assignment (different base types) @@     expected unsigned int [addressable] [assigned] val @@     got restricted __le32 [usertype] @@
   arch/arm/kernel/traps.c:200:37: sparse:     expected unsigned int [addressable] [assigned] val
   arch/arm/kernel/traps.c:200:37: sparse:     got restricted __le32 [usertype]
   arch/arm/kernel/traps.c:465:33: sparse: sparse: cast removes address space '__user' of expression
   arch/arm/kernel/traps.c:468:41: sparse: sparse: cast removes address space '__user' of expression
   arch/arm/kernel/traps.c:473:33: sparse: sparse: cast removes address space '__user' of expression

vim +198 arch/arm/kernel/traps.c

   164	
   165	static void dump_instr(const char *lvl, struct pt_regs *regs)
   166	{
   167		unsigned long addr = instruction_pointer(regs);
   168		const int thumb = thumb_mode(regs);
   169		const int width = thumb ? 4 : 8;
   170		char str[sizeof("00000000 ") * 5 + 2 + 1], *p = str;
   171		int i;
   172	
   173		/*
   174		 * Note that we now dump the code first, just in case the backtrace
   175		 * kills us.
   176		 */
   177	
   178		for (i = -4; i < 1 + !!thumb; i++) {
   179			unsigned int val, bad;
   180	
   181			if (!user_mode(regs)) {
   182				if (thumb) {
   183					u16 val16;
   184					bad = get_kernel_nofault(val16, &((u16 *)addr)[i]);
   185					val = val16;
   186				} else {
   187					bad = get_kernel_nofault(val, &((u32 *)addr)[i]);
   188				}
   189			} else {
   190				if (thumb)
   191					bad = get_user(val, &((u16 *)addr)[i]);
   192				else
   193					bad = get_user(val, &((u32 *)addr)[i]);
   194			}
   195	
   196			if (IS_ENABLED(CONFIG_CPU_ENDIAN_BE8)) {
   197				if (thumb)
 > 198					val = cpu_to_le16(val);
   199				else
 > 200					val = cpu_to_le32(val);
   201			}
   202	
   203			if (!bad)
   204				p += sprintf(p, i == 0 ? "(%0*x) " : "%0*x ",
   205						width, val);
   206			else {
   207				p += sprintf(p, "bad PC value");
   208				break;
   209			}
   210		}
   211		printk("%sCode: %s\n", lvl, str);
   212	}
   213	

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp