Using -Oline -j 72 W=1 redirect to /tmp/tmp.hq6zTByzmc and /tmp/tmp.igcV7oAc4S
LLVM=1 cc=clang
clang version 18.1.8 (Fedora 18.1.8-1.fc40)
Tree base:
dbb9a7ef3478 ("net: fjes: use ethtool string helpers")
Baseline building the tree
make[1]: Entering directory '/home/nipa/net-next/wt-0/build_clang'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/home/nipa/net-next/wt-0/build_clang'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
mkdir -p /home/nipa/net-next/wt-0/build_clang/tools/objtool && make O=/home/nipa/net-next/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/sfc/ef100_sriov.o
  CC [M]  drivers/net/ethernet/sfc/ef100_rep.o
  CC [M]  drivers/net/ethernet/sfc/falcon/mtd.o
  CC [M]  drivers/net/ethernet/sfc/falcon/tenxpress.o
  CC [M]  drivers/net/ethernet/sfc/efx_devlink.o
  CC [M]  drivers/net/ethernet/sfc/ptp.o
  CC [M]  drivers/net/ethernet/sfc/falcon/tx.o
  CC [M]  drivers/net/ethernet/sfc/falcon/selftest.o
  CC [M]  drivers/net/ethernet/sfc/falcon/ethtool.o
  CC [M]  drivers/net/ethernet/sfc/falcon/mdio_10g.o
  CC [M]  drivers/net/ethernet/sfc/falcon/rx.o
  CC [M]  drivers/net/ethernet/sfc/efx_channels.o
  CC [M]  drivers/net/ethernet/sfc/selftest.o
  CC [M]  drivers/net/ethernet/sfc/tx_tso.o
  CC [M]  drivers/net/ethernet/sfc/ethtool.o
  CC [M]  drivers/net/ethernet/sfc/ethtool_common.o
  CC [M]  drivers/net/ethernet/sfc/ef100_ethtool.o
  CC [M]  drivers/net/ethernet/sfc/ef100.o
  CC [M]  drivers/net/ethernet/sfc/mcdi_port.o
  CC [M]  drivers/net/ethernet/sfc/sriov.o
  CC [M]  drivers/net/ethernet/sfc/tx_common.o
  CC [M]  drivers/net/ethernet/sfc/ef100_rx.o
  CC [M]  drivers/net/ethernet/sfc/rx.o
  CC [M]  drivers/net/ethernet/sfc/ef10.o
  CC [M]  drivers/net/ethernet/sfc/mtd.o
  CC [M]  drivers/net/ethernet/sfc/mcdi_mon.o
  CC [M]  drivers/net/ethernet/sfc/ef100_netdev.o
  CC [M]  drivers/net/ethernet/sfc/mcdi_functions.o
  CC [M]  drivers/net/ethernet/sfc/tx.o
  CC [M]  drivers/net/ethernet/sfc/nic.o
  CC [M]  drivers/net/ethernet/sfc/mcdi_port_common.o
  CC [M]  drivers/net/ethernet/sfc/ef100_nic.o
  CC [M]  drivers/net/ethernet/sfc/rx_common.o
  CC [M]  drivers/net/ethernet/sfc/falcon/txc43128_phy.o
  CC [M]  drivers/net/ethernet/sfc/efx.o
  CC [M]  drivers/net/ethernet/sfc/ef100_tx.o
  CC [M]  drivers/net/ethernet/sfc/falcon/qt202x_phy.o
  CC [M]  drivers/net/ethernet/sfc/falcon/nic.o
  CC [M]  drivers/net/ethernet/sfc/falcon/falcon_boards.o
  CC [M]  drivers/net/ethernet/sfc/ef10_sriov.o
  CC [M]  drivers/net/ethernet/sfc/efx_common.o
  CC [M]  drivers/net/ethernet/sfc/tc_counters.o
  CC [M]  drivers/net/ethernet/sfc/tc_encap_actions.o
  CC [M]  drivers/net/ethernet/sfc/tc_conntrack.o
  CC [M]  drivers/net/ethernet/sfc/mcdi.o
  CC [M]  drivers/net/ethernet/sfc/mcdi_filters.o
  CC [M]  drivers/net/ethernet/sfc/tc.o
  CC [M]  drivers/net/ethernet/sfc/falcon/falcon.o
  CC [M]  drivers/net/ethernet/sfc/falcon/efx.o
  CC [M]  drivers/net/ethernet/sfc/falcon/farch.o
  CC [M]  drivers/net/ethernet/sfc/mae.o
  LD [M]  drivers/net/ethernet/sfc/falcon/sfc-falcon.o
  LD [M]  drivers/net/ethernet/sfc/sfc.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#6451)
  LD [M]  drivers/net/ethernet/sfc/sfc.ko
  LD [M]  drivers/net/ethernet/sfc/falcon/sfc-falcon.ko
Building the tree before the patch
make[1]: Entering directory '/home/nipa/net-next/wt-0/build_clang'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/home/nipa/net-next/wt-0/build_clang'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
mkdir -p /home/nipa/net-next/wt-0/build_clang/tools/objtool && make O=/home/nipa/net-next/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/sfc/falcon/tenxpress.o
  CC [M]  drivers/net/ethernet/sfc/falcon/mdio_10g.o
  CC [M]  drivers/net/ethernet/sfc/falcon/mtd.o
  CC [M]  drivers/net/ethernet/sfc/falcon/txc43128_phy.o
  CC [M]  drivers/net/ethernet/sfc/falcon/falcon_boards.o
  CC [M]  drivers/net/ethernet/sfc/falcon/qt202x_phy.o
  CC [M]  drivers/net/ethernet/sfc/falcon/nic.o
  CC [M]  drivers/net/ethernet/sfc/falcon/tx.o
  CC [M]  drivers/net/ethernet/sfc/falcon/ethtool.o
  CC [M]  drivers/net/ethernet/sfc/falcon/selftest.o
  CC [M]  drivers/net/ethernet/sfc/falcon/rx.o
  CC [M]  drivers/net/ethernet/sfc/falcon/falcon.o
  CC [M]  drivers/net/ethernet/sfc/falcon/farch.o
  CC [M]  drivers/net/ethernet/sfc/falcon/efx.o
  LD [M]  drivers/net/ethernet/sfc/falcon/sfc-falcon.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#6451)
  CC [M]  drivers/net/ethernet/sfc/falcon/sfc-falcon.mod.o
  LD [M]  drivers/net/ethernet/sfc/falcon/sfc-falcon.ko
Building the tree with the patch
make[1]: Entering directory '/home/nipa/net-next/wt-0/build_clang'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/home/nipa/net-next/wt-0/build_clang'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
mkdir -p /home/nipa/net-next/wt-0/build_clang/tools/objtool && make O=/home/nipa/net-next/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/sfc/falcon/mtd.o
  CC [M]  drivers/net/ethernet/sfc/falcon/tenxpress.o
  CC [M]  drivers/net/ethernet/sfc/falcon/mdio_10g.o
  CC [M]  drivers/net/ethernet/sfc/falcon/nic.o
  CC [M]  drivers/net/ethernet/sfc/falcon/txc43128_phy.o
  CC [M]  drivers/net/ethernet/sfc/falcon/falcon_boards.o
  CC [M]  drivers/net/ethernet/sfc/falcon/qt202x_phy.o
  CC [M]  drivers/net/ethernet/sfc/falcon/tx.o
  CC [M]  drivers/net/ethernet/sfc/falcon/selftest.o
  CC [M]  drivers/net/ethernet/sfc/falcon/ethtool.o
  CC [M]  drivers/net/ethernet/sfc/falcon/rx.o
  CC [M]  drivers/net/ethernet/sfc/falcon/falcon.o
  CC [M]  drivers/net/ethernet/sfc/falcon/farch.o
  CC [M]  drivers/net/ethernet/sfc/falcon/efx.o
  LD [M]  drivers/net/ethernet/sfc/falcon/sfc-falcon.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#6451)
  CC [M]  drivers/net/ethernet/sfc/falcon/sfc-falcon.mod.o
  LD [M]  drivers/net/ethernet/sfc/falcon/sfc-falcon.ko