Using -Oline -j 72 W=1 C=1 redirect to /tmp/tmp.a3nJ1HD4E0 and /tmp/tmp.NVxn4CNRfZ
CC=ccache gcc
gcc (GCC) 14.2.1 20240801 (Red Hat 14.2.1-1)
Tree base:
1f2e900ac26f ("Merge branch 'bareudp-pull-inner-ip-header-on-xmit-recv'")
Baseline building the tree
make[1]: Entering directory '/home/nipa/net/wt-0/build_allmodconfig_warn'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/home/nipa/net/wt-0/build_allmodconfig_warn'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
mkdir -p /home/nipa/net/wt-0/build_allmodconfig_warn/tools/objtool && make O=/home/nipa/net/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/xilinx/xilinx_axienet_main.o
  CHECK   ../drivers/net/ethernet/xilinx/xilinx_axienet_main.c
  LD [M]  drivers/net/ethernet/xilinx/xilinx_emac.o
  CC [M]  net/ipv6/netfilter/nf_reject_ipv6.o
  CHECK   ../net/ipv6/netfilter/nf_reject_ipv6.c
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#891)
  CC [M]  drivers/net/ethernet/xilinx/xilinx_emac.mod.o
  LD [M]  drivers/net/ethernet/xilinx/xilinx_emac.ko
  CC [M]  net/ipv6/netfilter/nf_reject_ipv6.mod.o
  LD [M]  net/ipv6/netfilter/nf_reject_ipv6.ko
Building the tree before the patch
make[1]: Entering directory '/home/nipa/net/wt-0/build_allmodconfig_warn'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/home/nipa/net/wt-0/build_allmodconfig_warn'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
mkdir -p /home/nipa/net/wt-0/build_allmodconfig_warn/tools/objtool && make O=/home/nipa/net/wt-0/build_allmodconfig_warn subdir=tools/objtool --no-print-directory -C objtool 
  INSTALL libsubcmd_headers
  CALL    ../scripts/checksyscalls.sh
  CC [M]  net/ipv6/netfilter/nf_reject_ipv6.o
  CHK     kernel/kheaders_data.tar.xz
  CHECK   ../net/ipv6/netfilter/nf_reject_ipv6.c
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#891)
  CC [M]  net/ipv6/netfilter/nf_reject_ipv6.mod.o
  LD [M]  net/ipv6/netfilter/nf_reject_ipv6.ko
Building the tree with the patch
make[1]: Entering directory '/home/nipa/net/wt-0/build_allmodconfig_warn'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/home/nipa/net/wt-0/build_allmodconfig_warn'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
mkdir -p /home/nipa/net/wt-0/build_allmodconfig_warn/tools/objtool && make O=/home/nipa/net/wt-0/build_allmodconfig_warn subdir=tools/objtool --no-print-directory -C objtool 
  INSTALL libsubcmd_headers
  CALL    ../scripts/checksyscalls.sh
  CC [M]  net/ipv6/netfilter/nf_reject_ipv6.o
  CHECK   ../net/ipv6/netfilter/nf_reject_ipv6.c
  CHK     kernel/kheaders_data.tar.xz
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#891)
  CC [M]  net/ipv6/netfilter/nf_reject_ipv6.mod.o
  LD [M]  net/ipv6/netfilter/nf_reject_ipv6.ko