Using -Oline -j 72 W=1 C=1 redirect to /tmp/tmp.vdOqikYav9 and /tmp/tmp.eayj3WBQ4f
CC=ccache gcc
gcc (GCC) 15.2.1 20250808 (Red Hat 15.2.1-1)
Tree base:
19fc304abea2 ("can: mcba_usb: populate ndo_change_mtu() to prevent buffer overflow")
Skip baseline build, not the first patch and no Kconfig updates
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/can/usb/peak_usb/pcan_usb_core.o
  CHECK   ../drivers/net/can/usb/peak_usb/pcan_usb_core.c
  LD [M]  drivers/net/can/usb/peak_usb/peak_usb.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#1537)
  LD [M]  drivers/net/can/usb/peak_usb/peak_usb.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/can/usb/peak_usb/pcan_usb_core.o
  CHECK   ../drivers/net/can/usb/peak_usb/pcan_usb_core.c
  LD [M]  drivers/net/can/usb/peak_usb/peak_usb.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#1537)
  CC [M]  drivers/net/can/usb/peak_usb/peak_usb.mod.o
  LD [M]  drivers/net/can/usb/peak_usb/peak_usb.ko