Using -Oline -j 72 W=1 redirect to /tmp/tmp.2q8y0jOf9X and /tmp/tmp.0y9BoYOvYY
LLVM=1 cc=clang
clang version 20.1.3 (Fedora 20.1.3-1.fc42)
Tree base:
24f5e6b317a0 ("can: mcan: m_can_class_unregister(): fix order of unregistration calls")
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
  CHK     kernel/kheaders_data.tar.xz
  CC [M]  net/can/gw.o
  LD [M]  net/can/can-gw.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#568)
  LD [M]  net/can/can-gw.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
  CHK     kernel/kheaders_data.tar.xz
  CC [M]  net/can/gw.o
  LD [M]  net/can/can-gw.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#568)
  CC [M]  net/can/can-gw.mod.o
  LD [M]  net/can/can-gw.ko