Using -Oline -j 72 W=1 C=1 redirect to /tmp/tmp.vaT5FtbiGG and /tmp/tmp.6j1ouyFUyP
CC=ccache gcc
gcc (GCC) 14.2.1 20240801 (Red Hat 14.2.1-1)
Tree base:
9410645520e9 ("Merge tag 'net-next-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next")
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/packet/af_packet.o
  CHECK   ../net/packet/af_packet.c
  CC [M]  drivers/net/virtio_net.o
  CHK     kernel/kheaders_data.tar.xz
  CHECK   ../drivers/net/virtio_net.c
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#5711)
  CC [M]  drivers/net/virtio_net.mod.o
  CC [M]  net/packet/af_packet.mod.o
  LD [M]  drivers/net/virtio_net.ko
  LD [M]  net/packet/af_packet.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
  CHK     kernel/kheaders_data.tar.xz
  CC [M]  drivers/net/virtio_net.o
  CHECK   ../drivers/net/virtio_net.c
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#5711)
  CC [M]  drivers/net/virtio_net.mod.o
  LD [M]  drivers/net/virtio_net.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
  CHK     kernel/kheaders_data.tar.xz
  CC [M]  drivers/net/virtio_net.o
  CHECK   ../drivers/net/virtio_net.c
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#5711)
  CC [M]  drivers/net/virtio_net.mod.o
  LD [M]  drivers/net/virtio_net.ko