linux-kernel - WARNING: modpost: vmlinux: section mismatch in reference: bitmap_gather+0x68 (section: .text) -> sg

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Date: Thu, 20 Jun 2024 08:54:29 +0800
From: kernel test robot <lkp@...el.com>
To: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
	Herve Codina <herve.codina@...tlin.com>
Subject: WARNING: modpost: vmlinux: section mismatch in reference:
 bitmap_gather+0x68 (section: .text) -> sg_mask (section: .init.rodata)

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   e5b3efbe1ab1793bb49ae07d56d0973267e65112
commit: de5f84338970815b9fdd3497a975fb572d11e0b5 lib/bitmap: Introduce bitmap_scatter() and bitmap_gather() helpers
date:   3 months ago
config: um-randconfig-r123-20240620 (https://download.01.org/0day-ci/archive/20240620/202406200829.IytwLyQJ-lkp@intel.com/config)
compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project 78ee473784e5ef6f0b19ce4cb111fb6e4d23c6b2)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240620/202406200829.IytwLyQJ-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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202406200829.IytwLyQJ-lkp@intel.com/

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

WARNING: modpost: missing MODULE_DESCRIPTION() in vmlinux.o
>> WARNING: modpost: vmlinux: section mismatch in reference: bitmap_gather+0x68 (section: .text) -> sg_mask (section: .init.rodata)
WARNING: modpost: vmlinux: section mismatch in reference: bitmap_gather+0x10b (section: .text) -> sg_mask (section: .init.rodata)
>> WARNING: modpost: vmlinux: section mismatch in reference: bitmap_scatter+0x68 (section: .text) -> sg_mask (section: .init.rodata)
WARNING: modpost: vmlinux: section mismatch in reference: bitmap_scatter+0x119 (section: .text) -> sg_mask (section: .init.rodata)

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