Re: [PATCH v2 08/12] arch, mm/util: add const to arch_pick_mmap_layout() parameter

[kernel test robot <lkp@intel.com>]

Hi Max,

kernel test robot noticed the following build errors:

[auto build test ERROR on akpm-mm/mm-everything]

url:    https://github.com/intel-lab-lkp/linux/commits/Max-Kellermann/mm-shmem-add-const-to-lots-of-pointer-parameters/20250831-174136
base:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
patch link:    https://lore.kernel.org/r/20250831093918.2815332-9-max.kellermann%40ionos.com
patch subject: [PATCH v2 08/12] arch, mm/util: add const to arch_pick_mmap_layout() parameter
config: sparc64-randconfig-001-20250901 (https://download.01.org/0day-ci/archive/20250901/202509010724.bSPPSD1X-lkp@intel.com/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250901/202509010724.bSPPSD1X-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/202509010724.bSPPSD1X-lkp@intel.com/

All errors (new ones prefixed by >>):

>> arch/sparc/kernel/sys_sparc_64.c:1:1: error: unknown type name 'ickj'
       1 | ickj// SPDX-License-Identifier: GPL-2.0
         | ^
   In file included from arch/sparc/kernel/sys_sparc_64.c:11:
   In file included from include/linux/sched/signal.h:6:
   include/linux/signal.h:98:11: warning: array index 3 is past the end of the array (that has type 'unsigned long[1]') [-Warray-bounds]
      98 |                 return (set->sig[3] | set->sig[2] |
         |                         ^        ~
   arch/sparc/include/uapi/asm/signal.h:113:8: note: array 'sig' declared here
     113 |        unsigned long sig[_NSIG_WORDS];
         |        ^
   In file included from arch/sparc/kernel/sys_sparc_64.c:11:
   In file included from include/linux/sched/signal.h:6:
   include/linux/signal.h:98:25: warning: array index 2 is past the end of the array (that has type 'unsigned long[1]') [-Warray-bounds]
      98 |                 return (set->sig[3] | set->sig[2] |
         |                                       ^        ~
   arch/sparc/include/uapi/asm/signal.h:113:8: note: array 'sig' declared here
     113 |        unsigned long sig[_NSIG_WORDS];
         |        ^
   In file included from arch/sparc/kernel/sys_sparc_64.c:11:
   In file included from include/linux/sched/signal.h:6:
   include/linux/signal.h:99:4: warning: array index 1 is past the end of the array (that has type 'unsigned long[1]') [-Warray-bounds]
      99 |                         set->sig[1] | set->sig[0]) == 0;
         |                         ^        ~
   arch/sparc/include/uapi/asm/signal.h:113:8: note: array 'sig' declared here
     113 |        unsigned long sig[_NSIG_WORDS];
         |        ^
   In file included from arch/sparc/kernel/sys_sparc_64.c:11:
   In file included from include/linux/sched/signal.h:6:
   include/linux/signal.h:101:11: warning: array index 1 is past the end of the array (that has type 'unsigned long[1]') [-Warray-bounds]
     101 |                 return (set->sig[1] | set->sig[0]) == 0;
         |                         ^        ~
   arch/sparc/include/uapi/asm/signal.h:113:8: note: array 'sig' declared here
     113 |        unsigned long sig[_NSIG_WORDS];
         |        ^
   In file included from arch/sparc/kernel/sys_sparc_64.c:11:
   In file included from include/linux/sched/signal.h:6:
   include/linux/signal.h:114:11: warning: array index 3 is past the end of the array (that has type 'const unsigned long[1]') [-Warray-bounds]
     114 |                 return  (set1->sig[3] == set2->sig[3]) &&
         |                          ^         ~
   arch/sparc/include/uapi/asm/signal.h:113:8: note: array 'sig' declared here
     113 |        unsigned long sig[_NSIG_WORDS];
         |        ^
   In file included from arch/sparc/kernel/sys_sparc_64.c:11:
   In file included from include/linux/sched/signal.h:6:
   include/linux/signal.h:114:27: warning: array index 3 is past the end of the array (that has type 'const unsigned long[1]') [-Warray-bounds]
     114 |                 return  (set1->sig[3] == set2->sig[3]) &&
         |                                          ^         ~
   arch/sparc/include/uapi/asm/signal.h:113:8: note: array 'sig' declared here
     113 |        unsigned long sig[_NSIG_WORDS];
         |        ^
   In file included from arch/sparc/kernel/sys_sparc_64.c:11:
   In file included from include/linux/sched/signal.h:6:
   include/linux/signal.h:115:5: warning: array index 2 is past the end of the array (that has type 'const unsigned long[1]') [-Warray-bounds]
     115 |                         (set1->sig[2] == set2->sig[2]) &&
         |                          ^         ~
   arch/sparc/include/uapi/asm/signal.h:113:8: note: array 'sig' declared here
     113 |        unsigned long sig[_NSIG_WORDS];
         |        ^
   In file included from arch/sparc/kernel/sys_sparc_64.c:11:
   In file included from include/linux/sched/signal.h:6:
   include/linux/signal.h:115:21: warning: array index 2 is past the end of the array (that has type 'const unsigned long[1]') [-Warray-bounds]
     115 |                         (set1->sig[2] == set2->sig[2]) &&
         |                                          ^         ~
   arch/sparc/include/uapi/asm/signal.h:113:8: note: array 'sig' declared here
     113 |        unsigned long sig[_NSIG_WORDS];
         |        ^
   In file included from arch/sparc/kernel/sys_sparc_64.c:11:
   In file included from include/linux/sched/signal.h:6:
   include/linux/signal.h:116:5: warning: array index 1 is past the end of the array (that has type 'const unsigned long[1]') [-Warray-bounds]
     116 |                         (set1->sig[1] == set2->sig[1]) &&
         |                          ^         ~
   arch/sparc/include/uapi/asm/signal.h:113:8: note: array 'sig' declared here
     113 |        unsigned long sig[_NSIG_WORDS];
         |        ^
   In file included from arch/sparc/kernel/sys_sparc_64.c:11:
   In file included from include/linux/sched/signal.h:6:
   include/linux/signal.h:116:21: warning: array index 1 is past the end of the array (that has type 'const unsigned long[1]') [-Warray-bounds]
     116 |                         (set1->sig[1] == set2->sig[1]) &&
         |                                          ^         ~
   arch/sparc/include/uapi/asm/signal.h:113:8: note: array 'sig' declared here
     113 |        unsigned long sig[_NSIG_WORDS];
         |        ^
   In file included from arch/sparc/kernel/sys_sparc_64.c:11:
   In file included from include/linux/sched/signal.h:6:
   include/linux/signal.h:119:11: warning: array index 1 is past the end of the array (that has type 'const unsigned long[1]') [-Warray-bounds]
     119 |                 return  (set1->sig[1] == set2->sig[1]) &&
         |                          ^         ~
   arch/sparc/include/uapi/asm/signal.h:113:8: note: array 'sig' declared here
     113 |        unsigned long sig[_NSIG_WORDS];
         |        ^
   In file included from arch/sparc/kernel/sys_sparc_64.c:11:
   In file included from include/linux/sched/signal.h:6:
   include/linux/signal.h:119:27: warning: array index 1 is past the end of the array (that has type 'const unsigned long[1]') [-Warray-bounds]
     119 |                 return  (set1->sig[1] == set2->sig[1]) &&
         |                                          ^         ~
   arch/sparc/include/uapi/asm/signal.h:113:8: note: array 'sig' declared here
     113 |        unsigned long sig[_NSIG_WORDS];
         |        ^
   In file included from arch/sparc/kernel/sys_sparc_64.c:11:
   In file included from include/linux/sched/signal.h:6:


vim +/ickj +1 arch/sparc/kernel/sys_sparc_64.c

   > 1	ickj// SPDX-License-Identifier: GPL-2.0
     2	/* linux/arch/sparc64/kernel/sys_sparc.c
     3	 *
     4	 * This file contains various random system calls that
     5	 * have a non-standard calling sequence on the Linux/sparc
     6	 * platform.
     7	 */
     8	

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