Using -Oline -j 72 W=1 redirect to /tmp/tmp.C1wp9S4kM5 and /tmp/tmp.nt6ic76tXD LLVM=1 cc=clang clang version 20.1.8 (Fedora 20.1.8-3.fc42) Tree base: 73006ba554ae ("can: j1939: implement NETDEV_UNREGISTER notification handler") Skip baseline build, not the first patch and no Kconfig updates Building the tree before the patch make[1]: Entering directory '/home/nipa/net/wt-0/build_clang' GEN Makefile # # configuration written to .config # make[1]: Leaving directory '/home/nipa/net/wt-0/build_clang' SYNC include/config/auto.conf GEN Makefile GEN Makefile DESCEND objtool CALL ../scripts/checksyscalls.sh INSTALL libsubcmd_headers CC [M] net/can/j1939/socket.o LD [M] net/can/j1939/can-j1939.o MODPOST Module.symvers Kernel: arch/x86/boot/bzImage is ready (#1406) LD [M] net/can/j1939/can-j1939.ko Building the tree with the patch make[1]: Entering directory '/home/nipa/net/wt-0/build_clang' GEN Makefile # # configuration written to .config # make[1]: Leaving directory '/home/nipa/net/wt-0/build_clang' SYNC include/config/auto.conf GEN Makefile GEN Makefile DESCEND objtool CALL ../scripts/checksyscalls.sh INSTALL libsubcmd_headers CC [M] net/can/j1939/socket.o LD [M] net/can/j1939/can-j1939.o MODPOST Module.symvers Kernel: arch/x86/boot/bzImage is ready (#1406) CC [M] net/can/j1939/can-j1939.mod.o LD [M] net/can/j1939/can-j1939.ko