Using -Oline -j 72 W=1 C=1 redirect to /tmp/tmp.L0jh4mSFW6 and /tmp/tmp.xVKuIV1eZN
CC=ccache gcc
gcc (GCC) 14.2.1 20240912 (Red Hat 14.2.1-3)
Tree base:
f87a17ed3b51 ("net: phy: realtek: merge the drivers for internal NBase-T PHY's")
Baseline building the tree
make[1]: Entering directory '/home/nipa/net-next/wt-1/build_allmodconfig_warn'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/home/nipa/net-next/wt-1/build_allmodconfig_warn'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
mkdir -p /home/nipa/net-next/wt-1/build_allmodconfig_warn/tools/objtool && make O=/home/nipa/net-next/wt-1/build_allmodconfig_warn subdir=tools/objtool --no-print-directory -C objtool 
  INSTALL libsubcmd_headers
  CALL    ../scripts/checksyscalls.sh
  CC [M]  net/ipv6/ip6mr.o
  CHECK   ../net/ipv6/ip6mr.c
  CC [M]  net/phonet/pn_dev.o
  CC [M]  net/phonet/socket.o
  CC [M]  net/phonet/af_phonet.o
  LD [M]  net/ipv6/ipv6.o
  CHECK   ../net/phonet/pn_dev.c
  CHECK   ../net/phonet/socket.c
  CHECK   ../net/phonet/af_phonet.c
  CC [M]  net/phonet/pn_netlink.o
  CHECK   ../net/phonet/pn_netlink.c
  LD [M]  net/phonet/phonet.o
  CHK     kernel/kheaders_data.tar.xz
  GEN     kernel/kheaders_data.tar.xz
  CC [M]  kernel/kheaders.o
  CHECK   ../kernel/kheaders.c
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#718)
  LD [M]  kernel/kheaders.ko
  CC [M]  net/ipv6/ipv6.mod.o
  LD [M]  net/ipv6/ipv6.ko
  CC [M]  net/phonet/phonet.mod.o
  LD [M]  net/phonet/phonet.ko
Building the tree before the patch
make[1]: Entering directory '/home/nipa/net-next/wt-1/build_allmodconfig_warn'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/home/nipa/net-next/wt-1/build_allmodconfig_warn'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
mkdir -p /home/nipa/net-next/wt-1/build_allmodconfig_warn/tools/objtool && make O=/home/nipa/net-next/wt-1/build_allmodconfig_warn subdir=tools/objtool --no-print-directory -C objtool 
  INSTALL libsubcmd_headers
  CALL    ../scripts/checksyscalls.sh
  CC [M]  net/phonet/pn_netlink.o
  CHECK   ../net/phonet/pn_netlink.c
  LD [M]  net/phonet/phonet.o
  CHK     kernel/kheaders_data.tar.xz
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#718)
  CC [M]  net/phonet/phonet.mod.o
  LD [M]  net/phonet/phonet.ko
Building the tree with the patch
make[1]: Entering directory '/home/nipa/net-next/wt-1/build_allmodconfig_warn'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/home/nipa/net-next/wt-1/build_allmodconfig_warn'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
mkdir -p /home/nipa/net-next/wt-1/build_allmodconfig_warn/tools/objtool && make O=/home/nipa/net-next/wt-1/build_allmodconfig_warn subdir=tools/objtool --no-print-directory -C objtool 
  INSTALL libsubcmd_headers
  CALL    ../scripts/checksyscalls.sh
  CC [M]  net/phonet/pn_netlink.o
  CHK     kernel/kheaders_data.tar.xz
  CHECK   ../net/phonet/pn_netlink.c
  LD [M]  net/phonet/phonet.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#718)
  CC [M]  net/phonet/phonet.mod.o
  LD [M]  net/phonet/phonet.ko