Using -Oline -j 72 W=1 C=1 redirect to /tmp/tmp.Oh4KcLh27A and /tmp/tmp.mXa8aCVXI4
CC=ccache gcc
gcc (GCC) 14.2.1 20240912 (Red Hat 14.2.1-3)
Tree base:
ab101c553bc1 ("neighbour: use kvzalloc()/kvfree()")
Baseline building the tree
make[1]: Entering directory '/home/nipa/net-next/wt-0/build_allmodconfig_warn'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/home/nipa/net-next/wt-0/build_allmodconfig_warn'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
mkdir -p /home/nipa/net-next/wt-0/build_allmodconfig_warn/tools/objtool && make O=/home/nipa/net-next/wt-0/build_allmodconfig_warn subdir=tools/objtool --no-print-directory -C objtool 
  INSTALL libsubcmd_headers
  CALL    ../scripts/checksyscalls.sh
  CHK     kernel/kheaders_data.tar.xz
  CC [M]  net/smc/smc_pnet.o
  CC [M]  net/smc/smc_ib.o
  CHECK   ../net/smc/smc_pnet.c
  CHECK   ../net/smc/smc_ib.c
  LD [M]  net/smc/smc.o
  CC [M]  drivers/net/ethernet/intel/igb/igb_main.o
  CHECK   ../drivers/net/ethernet/intel/igb/igb_main.c
  LD [M]  drivers/net/ethernet/intel/igb/igb.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#764)
  LD [M]  drivers/net/ethernet/intel/igb/igb.ko
  CC [M]  net/smc/smc.mod.o
  LD [M]  net/smc/smc.ko
Building the tree before the patch
make[1]: Entering directory '/home/nipa/net-next/wt-0/build_allmodconfig_warn'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/home/nipa/net-next/wt-0/build_allmodconfig_warn'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
mkdir -p /home/nipa/net-next/wt-0/build_allmodconfig_warn/tools/objtool && make O=/home/nipa/net-next/wt-0/build_allmodconfig_warn 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/igb/igb_main.o
  CHECK   ../drivers/net/ethernet/intel/igb/igb_main.c
  LD [M]  drivers/net/ethernet/intel/igb/igb.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#764)
  LD [M]  drivers/net/ethernet/intel/igb/igb.ko
Building the tree with the patch
make[1]: Entering directory '/home/nipa/net-next/wt-0/build_allmodconfig_warn'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/home/nipa/net-next/wt-0/build_allmodconfig_warn'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
mkdir -p /home/nipa/net-next/wt-0/build_allmodconfig_warn/tools/objtool && make O=/home/nipa/net-next/wt-0/build_allmodconfig_warn 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/igb/igb_main.o
  CHECK   ../drivers/net/ethernet/intel/igb/igb_main.c
  LD [M]  drivers/net/ethernet/intel/igb/igb.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#764)
  LD [M]  drivers/net/ethernet/intel/igb/igb.ko