Using -Oline -j 72 W=1 redirect to /tmp/tmp.r6yPps945u and /tmp/tmp.IZxv4I3LUJ
LLVM=1 cc=clang
clang version 18.1.8 (Fedora 18.1.8-1.fc40)
Tree base:
9bb88c659673 ("selftests: net: test extacks in netlink dumps")
Baseline building the tree
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
mkdir -p /home/nipa/net/wt-0/build_clang/tools/objtool && make O=/home/nipa/net/wt-0/build_clang subdir=tools/objtool --no-print-directory -C objtool 
  INSTALL libsubcmd_headers
  CALL    ../scripts/checksyscalls.sh
  CHK     kernel/kheaders_data.tar.xz
  CC [M]  drivers/net/ethernet/intel/idpf/idpf_dev.o
  CC [M]  drivers/net/ethernet/intel/idpf/idpf_main.o
  CC [M]  drivers/net/ethernet/intel/idpf/idpf_vf_dev.o
  CC [M]  drivers/net/ethernet/intel/idpf/idpf_ethtool.o
  CC [M]  net/sched/cls_flower.o
  CC [M]  drivers/net/ethernet/intel/idpf/idpf_singleq_txrx.o
  CC [M]  drivers/net/ethernet/intel/idpf/idpf_lib.o
  CC [M]  drivers/net/ethernet/intel/idpf/idpf_virtchnl.o
  CC [M]  drivers/net/ethernet/intel/idpf/idpf_txrx.o
  LD [M]  drivers/net/ethernet/intel/idpf/idpf.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#1426)
  CC [M]  drivers/net/ethernet/intel/idpf/idpf.mod.o
  LD [M]  drivers/net/ethernet/intel/idpf/idpf.ko
  CC [M]  net/sched/cls_flower.mod.o
  LD [M]  net/sched/cls_flower.ko
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
mkdir -p /home/nipa/net/wt-0/build_clang/tools/objtool && make O=/home/nipa/net/wt-0/build_clang subdir=tools/objtool --no-print-directory -C objtool 
  INSTALL libsubcmd_headers
  CALL    ../scripts/checksyscalls.sh
  CHK     kernel/kheaders_data.tar.xz
  CC [M]  drivers/net/ethernet/intel/idpf/idpf_main.o
  CC [M]  drivers/net/ethernet/intel/idpf/idpf_vf_dev.o
  CC [M]  drivers/net/ethernet/intel/idpf/idpf_dev.o
  CC [M]  drivers/net/ethernet/intel/idpf/idpf_lib.o
  CC [M]  drivers/net/ethernet/intel/idpf/idpf_ethtool.o
  CC [M]  drivers/net/ethernet/intel/idpf/idpf_singleq_txrx.o
  CC [M]  drivers/net/ethernet/intel/idpf/idpf_virtchnl.o
  CC [M]  drivers/net/ethernet/intel/idpf/idpf_txrx.o
  LD [M]  drivers/net/ethernet/intel/idpf/idpf.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#1426)
  CC [M]  drivers/net/ethernet/intel/idpf/idpf.mod.o
  LD [M]  drivers/net/ethernet/intel/idpf/idpf.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
mkdir -p /home/nipa/net/wt-0/build_clang/tools/objtool && make O=/home/nipa/net/wt-0/build_clang subdir=tools/objtool --no-print-directory -C objtool 
  INSTALL libsubcmd_headers
  CALL    ../scripts/checksyscalls.sh
  CHK     kernel/kheaders_data.tar.xz
  CC [M]  drivers/net/ethernet/intel/idpf/idpf_dev.o
  CC [M]  drivers/net/ethernet/intel/idpf/idpf_vf_dev.o
  CC [M]  drivers/net/ethernet/intel/idpf/idpf_main.o
  CC [M]  drivers/net/ethernet/intel/idpf/idpf_ethtool.o
  CC [M]  drivers/net/ethernet/intel/idpf/idpf_lib.o
  CC [M]  drivers/net/ethernet/intel/idpf/idpf_singleq_txrx.o
  CC [M]  drivers/net/ethernet/intel/idpf/idpf_virtchnl.o
  CC [M]  drivers/net/ethernet/intel/idpf/idpf_txrx.o
  LD [M]  drivers/net/ethernet/intel/idpf/idpf.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#1426)
  CC [M]  drivers/net/ethernet/intel/idpf/idpf.mod.o
  LD [M]  drivers/net/ethernet/intel/idpf/idpf.ko