Using -Oline -j 96 W=1 C=1 redirect to /tmp/tmp.TtFVekZtos and /tmp/tmp.P9xCg6fHnR
CC=ccache gcc
gcc (GCC) 15.2.1 20251211 (Red Hat 15.2.1-5)
Tree base:
d8f87aa5fa0a ("net: remove HIPPI support and RoadRunner HIPPI driver")
Baseline building the tree
make[1]: Entering directory '/srv/nipa-poller/net-next/wt-0/build_allmodconfig_warn'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/srv/nipa-poller/net-next/wt-0/build_allmodconfig_warn'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
  DESCEND objtool
  CALL    ../scripts/checksyscalls.sh
  INSTALL libsubcmd_headers
  UPD     kernel/config_data
  GZIP    kernel/config_data.gz
  CC [M]  kernel/configs.o
  CHECK   ../kernel/configs.c
  AR      drivers/net/ethernet/built-in.a
  AR      drivers/net/built-in.a
  CC [M]  drivers/net/wwan/t7xx/t7xx_hif_dpmaif_rx.o
  CHECK   ../drivers/net/wwan/t7xx/t7xx_hif_dpmaif_rx.c
  LD [M]  drivers/net/wwan/t7xx/mtk_t7xx.o
  AR      drivers/built-in.a
  AR      built-in.a
  AR      vmlinux.a
  LD      vmlinux.o
  MODPOST Module.symvers
  CC      .vmlinux.export.o
  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
  GEN     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
  LD [M]  kernel/configs.ko
  CHECK   ../arch/x86/boot/compressed/misc.c
  CC      arch/x86/boot/compressed/kaslr.o
  CHECK   ../arch/x86/boot/compressed/kaslr.c
  CC [M]  drivers/net/wwan/t7xx/mtk_t7xx.mod.o
  LD [M]  drivers/net/wwan/t7xx/mtk_t7xx.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
  AS      arch/x86/boot/header.o
  LD      arch/x86/boot/setup.elf
  OBJCOPY arch/x86/boot/vmlinux.bin
  OBJCOPY arch/x86/boot/setup.bin
  BUILD   arch/x86/boot/bzImage
Kernel: arch/x86/boot/bzImage is ready  (#1561)
Building the tree before the patch
make[1]: Entering directory '/srv/nipa-poller/net-next/wt-0/build_allmodconfig_warn'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/srv/nipa-poller/net-next/wt-0/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/wwan/t7xx/t7xx_hif_dpmaif_rx.o
  CHECK   ../drivers/net/wwan/t7xx/t7xx_hif_dpmaif_rx.c
  LD [M]  drivers/net/wwan/t7xx/mtk_t7xx.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#1561)
  CC [M]  drivers/net/wwan/t7xx/mtk_t7xx.mod.o
  LD [M]  drivers/net/wwan/t7xx/mtk_t7xx.ko
Building the tree with the patch
make[1]: Entering directory '/srv/nipa-poller/net-next/wt-0/build_allmodconfig_warn'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/srv/nipa-poller/net-next/wt-0/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/wwan/t7xx/t7xx_hif_dpmaif_rx.o
  CHECK   ../drivers/net/wwan/t7xx/t7xx_hif_dpmaif_rx.c
  LD [M]  drivers/net/wwan/t7xx/mtk_t7xx.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#1561)
  CC [M]  drivers/net/wwan/t7xx/mtk_t7xx.mod.o
  LD [M]  drivers/net/wwan/t7xx/mtk_t7xx.ko