Using -Oline -j 72 W=1 redirect to /tmp/tmp.Vd9EPhuuAn and /tmp/tmp.dwpYglrBbn
LLVM=1 cc=clang
clang version 18.1.8 (Fedora 18.1.8-1.fc40)
Tree base:
1d227fcc7222 ("Merge tag 'net-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net")
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
  CC [M]  drivers/net/dsa/ocelot/felix_vsc9959.o
  LD [M]  drivers/net/dsa/ocelot/mscc_felix.o
  CC [M]  drivers/net/ethernet/freescale/enetc/enetc_pf.o
  LD [M]  drivers/net/ethernet/freescale/enetc/fsl-enetc.o
  CC [M]  drivers/net/ethernet/freescale/enetc/enetc_pci_mdio.o
  CC [M]  drivers/net/ethernet/freescale/enetc/enetc_mdio.o
  LD [M]  drivers/net/ethernet/freescale/enetc/fsl-enetc-mdio.o
  CC [M]  net/netfilter/nf_tables_api.o
  LD [M]  net/netfilter/nf_tables.o
  CHK     kernel/kheaders_data.tar.xz
  GEN     kernel/kheaders_data.tar.xz
  CC [M]  kernel/kheaders.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#1100)
  LD [M]  kernel/kheaders.ko
  LD [M]  drivers/net/dsa/ocelot/mscc_felix.ko
  LD [M]  drivers/net/ethernet/freescale/enetc/fsl-enetc.ko
  LD [M]  drivers/net/ethernet/freescale/enetc/fsl-enetc-mdio.ko
  CC [M]  net/netfilter/nf_tables.mod.o
  LD [M]  net/netfilter/nf_tables.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
  CC [M]  drivers/net/dsa/ocelot/felix_vsc9959.o
  CC [M]  drivers/net/ethernet/freescale/enetc/enetc_pci_mdio.o
  LD [M]  drivers/net/dsa/ocelot/mscc_felix.o
  CC [M]  drivers/net/ethernet/freescale/enetc/enetc_mdio.o
  LD [M]  drivers/net/ethernet/freescale/enetc/fsl-enetc-mdio.o
  CC [M]  drivers/net/ethernet/freescale/enetc/enetc_pf.o
  LD [M]  drivers/net/ethernet/freescale/enetc/fsl-enetc.o
  CHK     kernel/kheaders_data.tar.xz
  GEN     kernel/kheaders_data.tar.xz
  CC [M]  kernel/kheaders.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#1100)
  LD [M]  kernel/kheaders.ko
  LD [M]  drivers/net/dsa/ocelot/mscc_felix.ko
  LD [M]  drivers/net/ethernet/freescale/enetc/fsl-enetc.ko
  LD [M]  drivers/net/ethernet/freescale/enetc/fsl-enetc-mdio.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
  CC [M]  drivers/net/dsa/ocelot/felix_vsc9959.o
  LD [M]  drivers/net/dsa/ocelot/mscc_felix.o
  CC [M]  drivers/net/ethernet/freescale/enetc/enetc_mdio.o
  CC [M]  drivers/net/ethernet/freescale/enetc/enetc_pci_mdio.o
  LD [M]  drivers/net/ethernet/freescale/enetc/fsl-enetc-mdio.o
  CC [M]  drivers/net/ethernet/freescale/enetc/enetc_pf.o
  LD [M]  drivers/net/ethernet/freescale/enetc/fsl-enetc.o
  CHK     kernel/kheaders_data.tar.xz
  GEN     kernel/kheaders_data.tar.xz
  CC [M]  kernel/kheaders.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#1100)
  LD [M]  kernel/kheaders.ko
  LD [M]  drivers/net/dsa/ocelot/mscc_felix.ko
  LD [M]  drivers/net/ethernet/freescale/enetc/fsl-enetc.ko
  LD [M]  drivers/net/ethernet/freescale/enetc/fsl-enetc-mdio.ko