Using -Oline -j 72 W=1 redirect to /tmp/tmp.6Wea8Bk6aq and /tmp/tmp.YwvW6FhpWa
CC=ccache gcc
gcc (GCC) 14.2.1 20240912 (Red Hat 14.2.1-3)
Tree base:
21520e74ba45 ("net: hide the definition of dev_get_by_napi_id()")
Baseline building the tree
make[1]: Entering directory '/home/nipa/net-next/wt-0/build_32bit'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/home/nipa/net-next/wt-0/build_32bit'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
  CALL    ../scripts/checksyscalls.sh
  CHK     kernel/kheaders_data.tar.xz
  CC [M]  drivers/net/can/grcan.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#8358)
  CC [M]  drivers/net/can/grcan.mod.o
  LD [M]  drivers/net/can/grcan.ko
Building the tree before the patch
make[1]: Entering directory '/home/nipa/net-next/wt-0/build_32bit'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/home/nipa/net-next/wt-0/build_32bit'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
  CALL    ../scripts/checksyscalls.sh
  CHK     kernel/kheaders_data.tar.xz
  CC [M]  drivers/net/can/grcan.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#8358)
  CC [M]  drivers/net/can/grcan.mod.o
  LD [M]  drivers/net/can/grcan.ko
Building the tree with the patch
make[1]: Entering directory '/home/nipa/net-next/wt-0/build_32bit'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/home/nipa/net-next/wt-0/build_32bit'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
  CALL    ../scripts/checksyscalls.sh
  CHK     kernel/kheaders_data.tar.xz
  CC [M]  drivers/net/can/grcan.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#8358)
  CC [M]  drivers/net/can/grcan.mod.o
  LD [M]  drivers/net/can/grcan.ko