include/linux/decompress/mm.h:(.text.get_bits+0x58): undefined reference to `__ashldi3'
From: kernel test robot
Date: Wed Oct 07 2026 - 14:52:22 EST
Hi Josh,
FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 7b63ef2d55f24519e7e9e5f4d15dbea03f126e40
commit: d4dba3b9c03a326cfa73833d6b166aeb442f82b5 lib: decompress_bunzip2: fix 32-bit shift undefined behavior
date: 6 months ago
config: mips-randconfig-r2308-20261007 (https://download.01.org/0day-ci/archive/20261007/202610072038.5a9xpYG7-lkp@xxxxxxxxx/config)
compiler: mips-linux-gcc (GCC) 8.5.0
sparse: v0.6.5-rc1
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261007/202610072038.5a9xpYG7-lkp@xxxxxxxxx/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
| Fixes: d4dba3b9c03a ("lib: decompress_bunzip2: fix 32-bit shift undefined behavior")
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202610072038.5a9xpYG7-lkp@xxxxxxxxx/
All errors (new ones prefixed by >>):
mips-linux-ld: mips-linux-ld: arch/mips/boot/compressed/decompress.o: unable to get decompressed section .debug_info
arch/mips/boot/compressed/decompress.o: in function `get_bits':
>> include/linux/decompress/mm.h:(.text.get_bits+0x58): undefined reference to `__ashldi3'
>> mips-linux-ld: include/linux/decompress/mm.h:(.text.get_bits+0xf0): undefined reference to `__ashldi3'
--
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