Using -Oline -j 72 W=1 C=1 redirect to /tmp/tmp.mkMRqnYLJQ and /tmp/tmp.5VSudyTP0k
CC=ccache gcc
gcc (GCC) 15.2.1 20250808 (Red Hat 15.2.1-1)
Tree base:
fea8cdf6738a ("net: airoha: Fix loopback mode configuration for GDM2 port")
Baseline building the tree
make[1]: Entering directory '/home/nipa/net/wt-0/build_allmodconfig_warn'
  GEN     Makefile
  HOSTCC  scripts/basic/fixdep
#
# 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
  HOSTCC  scripts/basic/fixdep
  INSTALL libsubcmd_headers
  CALL    ../scripts/checksyscalls.sh
  CC [M]  drivers/net/ethernet/airoha/airoha_eth.o
  CC [M]  drivers/net/ethernet/airoha/airoha_ppe.o
  CHECK   ../drivers/net/ethernet/airoha/airoha_eth.c
  CHECK   ../drivers/net/ethernet/airoha/airoha_ppe.c
  LD [M]  drivers/net/ethernet/airoha/airoha-eth.o
  CC [M]  drivers/net/ethernet/dlink/dl2k.o
  CHECK   ../drivers/net/ethernet/dlink/dl2k.c
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#1628)
  LD [M]  drivers/net/ethernet/airoha/airoha-eth.ko
  CC [M]  drivers/net/ethernet/dlink/dl2k.mod.o
  LD [M]  drivers/net/ethernet/dlink/dl2k.ko
Building the tree before the patch
make[1]: Entering directory '/home/nipa/net/wt-0/build_allmodconfig_warn'
  GEN     Makefile
  HOSTCC  scripts/basic/fixdep
#
# 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
  HOSTCC  scripts/basic/fixdep
  INSTALL libsubcmd_headers
  CALL    ../scripts/checksyscalls.sh
  CC [M]  drivers/net/ethernet/dlink/dl2k.o
  CHECK   ../drivers/net/ethernet/dlink/dl2k.c
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#1628)
  CC [M]  drivers/net/ethernet/dlink/dl2k.mod.o
  LD [M]  drivers/net/ethernet/dlink/dl2k.ko
Building the tree with the patch
make[1]: Entering directory '/home/nipa/net/wt-0/build_allmodconfig_warn'
  GEN     Makefile
  HOSTCC  scripts/basic/fixdep
#
# 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
  HOSTCC  scripts/basic/fixdep
  INSTALL libsubcmd_headers
  CALL    ../scripts/checksyscalls.sh
  CC [M]  drivers/net/ethernet/dlink/dl2k.o
  CHECK   ../drivers/net/ethernet/dlink/dl2k.c
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#1628)
  CC [M]  drivers/net/ethernet/dlink/dl2k.mod.o
  LD [M]  drivers/net/ethernet/dlink/dl2k.ko