Using -Oline -j 72 W=1 C=1 redirect to /tmp/tmp.ZKrLeMXrfp and /tmp/tmp.IjOpDcaNWL
CC=ccache gcc
gcc (GCC) 15.1.1 20250521 (Red Hat 15.1.1-2)
Tree base:
1dbf1d590d10 ("net: Add locking to protect skb->dev access in ip_output")
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/sched/sch_mqprio.o
  CHECK   ../net/sched/sch_mqprio.c
  CHK     kernel/kheaders_data.tar.xz
  CC [M]  drivers/net/dsa/microchip/ksz8.o
  CHECK   ../drivers/net/dsa/microchip/ksz8.c
  CC [M]  drivers/net/dsa/microchip/ksz_common.o
  CHECK   ../drivers/net/dsa/microchip/ksz_common.c
  LD [M]  drivers/net/dsa/microchip/ksz_switch.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#1172)
  CC [M]  drivers/net/dsa/microchip/ksz_switch.mod.o
  CC [M]  net/sched/sch_mqprio.mod.o
  LD [M]  drivers/net/dsa/microchip/ksz_switch.ko
  LD [M]  net/sched/sch_mqprio.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/dsa/microchip/ksz_common.o
  CC [M]  drivers/net/dsa/microchip/ksz8.o
  CHECK   ../drivers/net/dsa/microchip/ksz_common.c
  CHK     kernel/kheaders_data.tar.xz
  CHECK   ../drivers/net/dsa/microchip/ksz8.c
  LD [M]  drivers/net/dsa/microchip/ksz_switch.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#1172)
  CC [M]  drivers/net/dsa/microchip/ksz_switch.mod.o
  LD [M]  drivers/net/dsa/microchip/ksz_switch.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/dsa/microchip/ksz_common.o
  CC [M]  drivers/net/dsa/microchip/ksz8.o
  CHK     kernel/kheaders_data.tar.xz
  CHECK   ../drivers/net/dsa/microchip/ksz_common.c
  CHECK   ../drivers/net/dsa/microchip/ksz8.c
  LD [M]  drivers/net/dsa/microchip/ksz_switch.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#1172)
  CC [M]  drivers/net/dsa/microchip/ksz_switch.mod.o
  LD [M]  drivers/net/dsa/microchip/ksz_switch.ko