Re: [PATCH 2/2] LoadPin: Make sysctl table const

kernel test robot
2025-02-14T15:54:39Z

Hi Ricardo,

kernel test robot noticed the following build errors:

[auto build test ERROR on a9a5e0bdc5a77a7c662ad4be0ad661f0b0d5e99d]

url: https://github.com/intel-lab-lkp/linux/commits/Ricardo-B-Marliere/yama-Make-sysctl-table-const/20250124-033808
base: a9a5e0bdc5a77a7c662ad4be0ad661f0b0d5e99d
patch link: https://lore.kernel.org/r/20250123-sysctl-kees-v1-2-533359e74d66%40suse.com
patch subject: [PATCH 2/2] LoadPin: Make sysctl table const
config: nios2-allmodconfig (https://download.01.org/0day-ci/archive/20250214/202502142320.sf6WGiJs-lkp@intel.com/config)
compiler: nios2-linux-gcc (GCC) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250214/202502142320.sf6WGiJs-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/202502142320.sf6WGiJs-lkp@intel.com/

All errors (new ones prefixed by >>):

security/loadpin/loadpin.c: In function 'set_sysctl':
>> security/loadpin/loadpin.c:75:48: error: assignment of member 'extra1' in read-only object
75 | loadpin_sysctl_table[0].extra1 = SYSCTL_ZERO;
| ^
security/loadpin/loadpin.c:77:48: error: assignment of member 'extra1' in read-only object
77 | loadpin_sysctl_table[0].extra1 = SYSCTL_ONE;
| ^

vim +/extra1 +75 security/loadpin/loadpin.c

9b091556a073a9 Kees Cook 2016-04-20 67
60ba1028fc7b73 Kees Cook 2022-12-09 68 static void set_sysctl(bool is_writable)
9b091556a073a9 Kees Cook 2016-04-20 69 {
9b091556a073a9 Kees Cook 2016-04-20 70 /*
9b091556a073a9 Kees Cook 2016-04-20 71 * If load pinning is not enforced via a read-only block
9b091556a073a9 Kees Cook 2016-04-20 72 * device, allow sysctl to change modes for testing.
9b091556a073a9 Kees Cook 2016-04-20 73 */
60ba1028fc7b73 Kees Cook 2022-12-09 74 if (is_writable)
60ba1028fc7b73 Kees Cook 2022-12-09 @75 loadpin_sysctl_table[0].extra1 = SYSCTL_ZERO;
60ba1028fc7b73 Kees Cook 2022-12-09 76 else
60ba1028fc7b73 Kees Cook 2022-12-09 77 loadpin_sysctl_table[0].extra1 = SYSCTL_ONE;
60ba1028fc7b73 Kees Cook 2022-12-09 78 }
60ba1028fc7b73 Kees Cook 2022-12-09 79 #else
60ba1028fc7b73 Kees Cook 2022-12-09 80 static inline void set_sysctl(bool is_writable) { }
60ba1028fc7b73 Kees Cook 2022-12-09 81 #endif
60ba1028fc7b73 Kees Cook 2022-12-09 82

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