Using -Oline -j 72 W=1 redirect to /tmp/tmp.hoDvVBmlPE and /tmp/tmp.KehmvoOyw2
LLVM=1 cc=clang
clang version 18.1.6 (Fedora 18.1.6-3.fc40)
Tree base:
c9c0ee5f20c5 ("net: skbuff: Skip early return in skb_unref when debugging")
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/dsa/microchip/ksz_dcb.o
  CC [M]  drivers/net/dsa/microchip/ksz9477_tc_flower.o
  CC [M]  drivers/net/dsa/microchip/lan937x_main.o
  CC [M]  drivers/net/dsa/microchip/ksz9477_acl.o
  CC [M]  net/kcm/kcmsock.o
  CC [M]  drivers/net/dsa/microchip/ksz9477_i2c.o
  CC [M]  drivers/net/dsa/microchip/ksz_spi.o
  CC [M]  drivers/net/dsa/microchip/ksz8863_smi.o
  LD [M]  net/kcm/kcm.o
  CC [M]  drivers/net/dsa/microchip/ksz9477.o
  CC [M]  drivers/net/dsa/microchip/ksz8795.o
  CC [M]  drivers/net/dsa/microchip/ksz_ptp.o
  CC [M]  drivers/net/dsa/microchip/ksz_common.o
  LD [M]  drivers/net/dsa/microchip/ksz_switch.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#3864)
  CC [M]  drivers/net/dsa/microchip/ksz_switch.mod.o
  CC [M]  drivers/net/dsa/microchip/ksz9477_i2c.mod.o
  CC [M]  drivers/net/dsa/microchip/ksz8863_smi.mod.o
  CC [M]  drivers/net/dsa/microchip/ksz_spi.mod.o
  LD [M]  drivers/net/dsa/microchip/ksz_switch.ko
  LD [M]  drivers/net/dsa/microchip/ksz9477_i2c.ko
  LD [M]  drivers/net/dsa/microchip/ksz_spi.ko
  LD [M]  drivers/net/dsa/microchip/ksz8863_smi.ko
  CC [M]  net/kcm/kcm.mod.o
  LD [M]  net/kcm/kcm.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]  net/kcm/kcmsock.o
  LD [M]  net/kcm/kcm.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#3864)
  CC [M]  net/kcm/kcm.mod.o
  LD [M]  net/kcm/kcm.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]  net/kcm/kcmsock.o
  LD [M]  net/kcm/kcm.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#3864)
  CC [M]  net/kcm/kcm.mod.o
  LD [M]  net/kcm/kcm.ko