WARNING: modpost: vmlinux: section mismatch in reference: __set_fixmap+0x5c (section: .text) -> map_page.isra.0 (section: .init.text)

WARNING: modpost: vmlinux: section mismatch in reference: __set_fixmap+0x5c (section: .text) -> map_page.isra.0 (section: .init.text)

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   691d401c7e0e5ea34ac6f8151bc0696db1b2500a
commit: 4735037b5d9b0f809c51976c87d737fa2c48fdea openrisc: Add text patching API support
date:   7 weeks ago
config: openrisc-randconfig-r133-20251102 (https://download.01.org/0day-ci/archive/20251102/202511021055.bpftGsDj-lkp@intel.com/config)
compiler: or1k-linux-gcc (GCC) 10.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251102/202511021055.bpftGsDj-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/202511021055.bpftGsDj-lkp@intel.com/

All warnings (new ones prefixed by >>, old ones prefixed by <<):

>> WARNING: modpost: vmlinux: section mismatch in reference: __set_fixmap+0x5c (section: .text) -> map_page.isra.0 (section: .init.text)
ERROR: modpost: "__mulsi3" [kernel/locking/locktorture.ko] undefined!
ERROR: modpost: "__mulsi3" [kernel/rcu/refscale.ko] undefined!
ERROR: modpost: "__mulsi3" [kernel/time/test_udelay.ko] undefined!
ERROR: modpost: "__mulsi3" [kernel/trace/ring_buffer_benchmark.ko] undefined!
ERROR: modpost: "__mulsi3" [kernel/trace/preemptirq_delay_test.ko] undefined!
ERROR: modpost: "__mulsi3" [fs/fat/vfat.ko] undefined!
ERROR: modpost: "__mulsi3" [fs/mbcache.ko] undefined!
ERROR: modpost: "__mulsi3" [fs/ext4/ext4.ko] undefined!
ERROR: modpost: "__mulsi3" [fs/jbd2/jbd2.ko] undefined!
ERROR: modpost: "__mulsi3" [fs/ntfs3/ntfs3.ko] undefined!
WARNING: modpost: suppressed 402 unresolved symbol warnings because there were too many)

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki