Hi Greg,
First bad commit (maybe != root cause):
tree: https://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k.git master
head: 17810b1de0e9e5c1000cf8f5b4787ad930b0353e
commit: e96424b86d5098f44279399b85551e0f84a1c9e9 [2/2] m68k: Use kernel's generic muldi3 libgcc function
config: m68k-randconfig-r122-20250101 (https://download.01.org/0day-ci/archive/20250101/202501011517.5edVb87Z-lkp@xxxxxxxxx/config)
compiler: m68k-linux-gcc (GCC) 14.2.0
reproduce: (https://download.01.org/0day-ci/archive/20250101/202501011517.5edVb87Z-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
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202501011517.5edVb87Z-lkp@xxxxxxxxx/
sparse warnings: (new ones prefixed by >>)
lib/muldi3.c:53:28: sparse: sparse: asm output is not an lvalue
lib/muldi3.c:53:28: sparse: sparse: asm output is not an lvalue
lib/muldi3.c:53:28: sparse: sparse: not addressable
lib/muldi3.c:53:28: sparse: sparse: generating address of non-lvalue (11)
lib/muldi3.c:53:28: sparse: sparse: generating address of non-lvalue (11)
vim +53 lib/muldi3.c
b35cd9884fa5d8 Palmer Dabbelt 2017-05-23 48
b35cd9884fa5d8 Palmer Dabbelt 2017-05-23 49 long long notrace __muldi3(long long u, long long v)
b35cd9884fa5d8 Palmer Dabbelt 2017-05-23 50 {
b35cd9884fa5d8 Palmer Dabbelt 2017-05-23 51 const DWunion uu = {.ll = u};
b35cd9884fa5d8 Palmer Dabbelt 2017-05-23 52 const DWunion vv = {.ll = v};
b35cd9884fa5d8 Palmer Dabbelt 2017-05-23 @53 DWunion w = {.ll = __umulsidi3(uu.s.low, vv.s.low)};
:::::: The code at line 53 was first introduced by commit
:::::: b35cd9884fa5d81c9d5e7f57c9d03264ae2bd835 lib: Add shared copies of some GCC library routines
:::::: TO: Palmer Dabbelt <palmer@xxxxxxxxxxx>
:::::: CC: Palmer Dabbelt <palmer@xxxxxxxxxxx>
--
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https://github.com/intel/lkp-tests/wiki
