Using -Oline -j 96 W=1 C=1 redirect to /tmp/tmp.HeH8Fknqeu and /tmp/tmp.FPs8gpjG5E
CC=ccache gcc
gcc (GCC) 15.2.1 20260123 (Red Hat 15.2.1-7)
Tree base:
899ca0f9ad90 ("ethtool: Add MAC loopback support via ethtool_ops")
Skip baseline build, not the first patch and no Kconfig updates
Building the tree before the patch
make[1]: Entering directory '/srv/nipa-poller/net-next/wt-1/build_allmodconfig_warn'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/srv/nipa-poller/net-next/wt-1/build_allmodconfig_warn'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
  DESCEND objtool
  CALL    ../scripts/checksyscalls.sh
  INSTALL libsubcmd_headers
  CC [M]  drivers/net/netdevsim/netdev.o
  CC [M]  drivers/net/netdevsim/dev.o
  CC [M]  drivers/net/netdevsim/ethtool.o
  CC [M]  drivers/net/netdevsim/fib.o
  CC [M]  drivers/net/netdevsim/bus.o
  CC [M]  drivers/net/netdevsim/health.o
  CC [M]  drivers/net/netdevsim/hwstats.o
  CC [M]  drivers/net/netdevsim/udp_tunnels.o
  CC [M]  drivers/net/netdevsim/bpf.o
  CC [M]  drivers/net/netdevsim/ipsec.o
  CC [M]  drivers/net/netdevsim/psample.o
  CC [M]  drivers/net/netdevsim/psp.o
  CC [M]  drivers/net/netdevsim/macsec.o
  LD [M]  drivers/net/netdevsim/netdevsim.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#1506)
  LD [M]  drivers/net/netdevsim/netdevsim.ko
Building the tree with the patch
make[1]: Entering directory '/srv/nipa-poller/net-next/wt-1/build_allmodconfig_warn'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/srv/nipa-poller/net-next/wt-1/build_allmodconfig_warn'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
  DESCEND objtool
  CALL    ../scripts/checksyscalls.sh
  INSTALL libsubcmd_headers
  CC [M]  drivers/net/netdevsim/health.o
  CC [M]  drivers/net/netdevsim/psample.o
  CC [M]  drivers/net/netdevsim/udp_tunnels.o
  CC [M]  drivers/net/netdevsim/hwstats.o
  CC [M]  drivers/net/netdevsim/ethtool.o
  CC [M]  drivers/net/netdevsim/bus.o
  CC [M]  drivers/net/netdevsim/ipsec.o
  CC [M]  drivers/net/netdevsim/macsec.o
  CC [M]  drivers/net/netdevsim/psp.o
  CC [M]  drivers/net/netdevsim/bpf.o
  CC [M]  drivers/net/netdevsim/dev.o
  CC [M]  drivers/net/netdevsim/netdev.o
  CC [M]  drivers/net/netdevsim/fib.o
  LD [M]  drivers/net/netdevsim/netdevsim.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#1506)
  CC [M]  drivers/net/netdevsim/netdevsim.mod.o
  LD [M]  drivers/net/netdevsim/netdevsim.ko