Using -Oline -j 72 W=1 C=1 redirect to /tmp/tmp.tlEpdD7HgN and /tmp/tmp.zLwou7Wc1B
CC=ccache gcc
gcc (GCC) 15.2.1 20250808 (Red Hat 15.2.1-1)
Tree base:
e5763491237f ("Merge tag 'net-6.18-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net")
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
  DESCEND objtool
  INSTALL libsubcmd_headers
  CALL    ../scripts/checksyscalls.sh
  CC [M]  net/bluetooth/hci_core.o
  CC [M]  net/bluetooth/hci_conn.o
  CC [M]  net/bluetooth/hci_event.o
  CC [M]  net/bluetooth/mgmt.o
  CC [M]  net/bluetooth/hci_sock.o
  CC [M]  net/bluetooth/smp.o
  CC [M]  net/bluetooth/mgmt_util.o
  CC [M]  net/bluetooth/mgmt_config.o
  CHECK   ../net/bluetooth/hci_core.c
  CHECK   ../net/bluetooth/hci_conn.c
  CHECK   ../net/bluetooth/hci_sock.c
  CHECK   ../net/bluetooth/hci_event.c
  CC [M]  net/bluetooth/eir.o
  CHECK   ../net/bluetooth/mgmt.c
  CHECK   ../net/bluetooth/smp.c
  CC [M]  net/bluetooth/hci_sync.o
  CHECK   ../net/bluetooth/mgmt_util.c
  CHECK   ../net/bluetooth/mgmt_config.c
  CC [M]  net/bluetooth/msft.o
  CHECK   ../net/bluetooth/eir.c
  CHECK   ../net/bluetooth/hci_sync.c
  CHECK   ../net/bluetooth/msft.c
  CC [M]  drivers/bluetooth/btrtl.o
  LD [M]  net/bluetooth/bluetooth.o
  CHECK   ../drivers/bluetooth/btrtl.c
  CC [M]  drivers/net/ethernet/spacemit/k1_emac.o
  CHECK   ../drivers/net/ethernet/spacemit/k1_emac.c
  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  (#1836)
  LD [M]  kernel/kheaders.ko
  CC [M]  drivers/net/ethernet/spacemit/k1_emac.mod.o
  CC [M]  drivers/bluetooth/btrtl.mod.o
  CC [M]  net/bluetooth/bluetooth.mod.o
  LD [M]  drivers/net/ethernet/spacemit/k1_emac.ko
  LD [M]  drivers/bluetooth/btrtl.ko
  LD [M]  net/bluetooth/bluetooth.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
  DESCEND objtool
  INSTALL libsubcmd_headers
  CALL    ../scripts/checksyscalls.sh
  CC [M]  drivers/net/ethernet/spacemit/k1_emac.o
  CHECK   ../drivers/net/ethernet/spacemit/k1_emac.c
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#1836)
  CC [M]  drivers/net/ethernet/spacemit/k1_emac.mod.o
  LD [M]  drivers/net/ethernet/spacemit/k1_emac.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
  DESCEND objtool
  INSTALL libsubcmd_headers
  CALL    ../scripts/checksyscalls.sh
  CC [M]  drivers/net/ethernet/spacemit/k1_emac.o
  CHECK   ../drivers/net/ethernet/spacemit/k1_emac.c
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#1836)
  CC [M]  drivers/net/ethernet/spacemit/k1_emac.mod.o
  LD [M]  drivers/net/ethernet/spacemit/k1_emac.ko