Re: gcc inserts __builtin_popcount, causes 'modpost: "__popcountdi2" ... amdgpu.ko] undefined'

On Mon, Apr 11, 2022 at 10:08:15PM +0100, Sergei Trofimovich wrote: > Current linux-5.17.1 on fresh gcc-12 fails to build with errors like: > > ERROR: modpost: "__popcountdi2" > [drivers/net/ethernet/broadcom/bnx2x/bnx2x.ko] undefined! > ERROR: modpost: "_

gcc inserts __builtin_popcount, causes 'modpost: "__popcountdi2" ... amdgpu.ko] undefined'

Current linux-5.17.1 on fresh gcc-12 fails to build with errors like: ERROR: modpost: "__popcountdi2" [drivers/net/ethernet/broadcom/bnx2x/bnx2x.ko] undefined! ERROR: modpost: "__popcountdi2" [drivers/gpu/drm/amd/amdgpu/amdgpu.ko] undefined! It is occasionally seen by others on previous