Using -Oline -j 72 W=1 C=1 redirect to /tmp/tmp.nEcrMFwa5j and /tmp/tmp.CMsso41kY1
CC=ccache gcc
gcc (GCC) 15.2.1 20251022 (Red Hat 15.2.1-3)
Tree base:
255d75ef029f ("Merge branch 'xsk-minor-optimizations-around-locks'")
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
  DESCEND objtool
  INSTALL libsubcmd_headers
  CALL    ../scripts/checksyscalls.sh
  CC      net/strparser/strparser.o
  CHECK   ../net/strparser/strparser.c
  AR      net/strparser/built-in.a
  AR      net/built-in.a
  CC [M]  drivers/net/ethernet/renesas/ravb_main.o
  CC [M]  drivers/net/ethernet/renesas/ravb_ptp.o
  CHECK   ../drivers/net/ethernet/renesas/ravb_ptp.c
  CHECK   ../drivers/net/ethernet/renesas/ravb_main.c
  LD [M]  drivers/net/ethernet/renesas/ravb.o
  CC [M]  drivers/net/ethernet/renesas/rcar_gen4_ptp.o
  CHECK   ../drivers/net/ethernet/renesas/rcar_gen4_ptp.c
  CC [M]  drivers/net/ethernet/renesas/rswitch_l2.o
  CHECK   ../drivers/net/ethernet/renesas/rswitch_l2.c
  CC [M]  drivers/net/ethernet/renesas/rtsn.o
  CHECK   ../drivers/net/ethernet/renesas/rtsn.c
  CC [M]  drivers/net/ethernet/renesas/rswitch_main.o
  CHECK   ../drivers/net/ethernet/renesas/rswitch_main.c
  LD [M]  drivers/net/ethernet/renesas/rswitch.o
  AR      built-in.a
  AR      vmlinux.a
  LD      vmlinux.o
  MODPOST Module.symvers
  UPD     include/generated/utsversion.h
  CC      init/version-timestamp.o
  CHECK   ../init/version-timestamp.c
  KSYMS   .tmp_vmlinux0.kallsyms.S
  AS      .tmp_vmlinux0.kallsyms.o
  LD      .tmp_vmlinux1
  NM      .tmp_vmlinux1.syms
  KSYMS   .tmp_vmlinux1.kallsyms.S
  AS      .tmp_vmlinux1.kallsyms.o
  LD      .tmp_vmlinux2
  NM      .tmp_vmlinux2.syms
  KSYMS   .tmp_vmlinux2.kallsyms.S
  AS      .tmp_vmlinux2.kallsyms.o
  LD      vmlinux.unstripped
  NM      System.map
  SORTTAB vmlinux.unstripped
  OBJCOPY modules.builtin.modinfo
  GEN     modules.builtin
  GEN     modules.builtin.ranges
  OBJCOPY vmlinux
  CC      arch/x86/boot/version.o
  CHECK   ../arch/x86/boot/version.c
  OBJCOPY arch/x86/boot/compressed/vmlinux.bin
  VOFFSET arch/x86/boot/compressed/../voffset.h
  CC      arch/x86/boot/compressed/misc.o
  RELOCS  arch/x86/boot/compressed/vmlinux.relocs
  CHECK   ../arch/x86/boot/compressed/misc.c
  CC      arch/x86/boot/compressed/kaslr.o
  CHECK   ../arch/x86/boot/compressed/kaslr.c
  LD [M]  drivers/net/ethernet/renesas/ravb.ko
  CC [M]  drivers/net/ethernet/renesas/rswitch.mod.o
  CC [M]  drivers/net/ethernet/renesas/rtsn.mod.o
  CC [M]  drivers/net/ethernet/renesas/rcar_gen4_ptp.mod.o
  LD [M]  drivers/net/ethernet/renesas/rswitch.ko
  LD [M]  drivers/net/ethernet/renesas/rcar_gen4_ptp.ko
  LD [M]  drivers/net/ethernet/renesas/rtsn.ko
  GZIP    arch/x86/boot/compressed/vmlinux.bin.gz
  MKPIGGY arch/x86/boot/compressed/piggy.S
  AS      arch/x86/boot/compressed/piggy.o
  LD      arch/x86/boot/compressed/vmlinux
  ZOFFSET arch/x86/boot/zoffset.h
  OBJCOPY arch/x86/boot/vmlinux.bin
  AS      arch/x86/boot/header.o
  LD      arch/x86/boot/setup.elf
  OBJCOPY arch/x86/boot/setup.bin
  BUILD   arch/x86/boot/bzImage
Kernel: arch/x86/boot/bzImage is ready  (#7288)
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
  DESCEND objtool
  INSTALL libsubcmd_headers
  CALL    ../scripts/checksyscalls.sh
  CC [M]  drivers/net/ethernet/renesas/rswitch_main.o
  CC [M]  drivers/net/ethernet/renesas/rswitch_l2.o
  CC [M]  drivers/net/ethernet/renesas/rcar_gen4_ptp.o
  CC [M]  drivers/net/ethernet/renesas/rtsn.o
  CHECK   ../drivers/net/ethernet/renesas/rswitch_main.c
  CHECK   ../drivers/net/ethernet/renesas/rcar_gen4_ptp.c
  CHECK   ../drivers/net/ethernet/renesas/rtsn.c
  CHECK   ../drivers/net/ethernet/renesas/rswitch_l2.c
  LD [M]  drivers/net/ethernet/renesas/rswitch.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#7288)
  CC [M]  drivers/net/ethernet/renesas/rswitch.mod.o
  CC [M]  drivers/net/ethernet/renesas/rcar_gen4_ptp.mod.o
  CC [M]  drivers/net/ethernet/renesas/rtsn.mod.o
  LD [M]  drivers/net/ethernet/renesas/rswitch.ko
  LD [M]  drivers/net/ethernet/renesas/rcar_gen4_ptp.ko
  LD [M]  drivers/net/ethernet/renesas/rtsn.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
  DESCEND objtool
  INSTALL libsubcmd_headers
  CALL    ../scripts/checksyscalls.sh
  CC [M]  drivers/net/ethernet/renesas/rswitch_main.o
  CC [M]  drivers/net/ethernet/renesas/rswitch_l2.o
  CC [M]  drivers/net/ethernet/renesas/rcar_gen4_ptp.o
  CC [M]  drivers/net/ethernet/renesas/rtsn.o
  CHECK   ../drivers/net/ethernet/renesas/rcar_gen4_ptp.c
  CHECK   ../drivers/net/ethernet/renesas/rtsn.c
  CHECK   ../drivers/net/ethernet/renesas/rswitch_main.c
  CHECK   ../drivers/net/ethernet/renesas/rswitch_l2.c
  LD [M]  drivers/net/ethernet/renesas/rswitch.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#7288)
  CC [M]  drivers/net/ethernet/renesas/rswitch.mod.o
  CC [M]  drivers/net/ethernet/renesas/rcar_gen4_ptp.mod.o
  CC [M]  drivers/net/ethernet/renesas/rtsn.mod.o
  LD [M]  drivers/net/ethernet/renesas/rswitch.ko
  LD [M]  drivers/net/ethernet/renesas/rcar_gen4_ptp.ko
  LD [M]  drivers/net/ethernet/renesas/rtsn.ko