Using -Oline -j 96 W=1 redirect to /tmp/tmp.niKchDMnLt and /tmp/tmp.xMMe37cYTz
CC=ccache gcc
gcc (GCC) 15.2.1 20260123 (Red Hat 15.2.1-7)
Tree base:
b338a33287db ("can: use skb hash instead of private variable in headroom")
Skip baseline build, not the first patch and no Kconfig updates
Building the tree before the patch
make[1]: Entering directory '/srv/nipa-poller/net-next/wt-1/build_32bit'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/srv/nipa-poller/net-next/wt-1/build_32bit'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
  CALL    ../scripts/checksyscalls.sh
  CC [M]  net/can/raw.o
  CC [M]  net/can/bcm.o
  CC [M]  net/can/isotp.o
  LD [M]  net/can/can-raw.o
  CC [M]  net/can/j1939/main.o
  CC [M]  net/can/j1939/socket.o
  LD [M]  net/can/can-bcm.o
  LD [M]  net/can/can-isotp.o
  LD [M]  net/can/j1939/can-j1939.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#1917)
  LD [M]  net/can/can-raw.ko
  LD [M]  net/can/can-bcm.ko
  LD [M]  net/can/j1939/can-j1939.ko
  LD [M]  net/can/can-isotp.ko
Building the tree with the patch
make[1]: Entering directory '/srv/nipa-poller/net-next/wt-1/build_32bit'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/srv/nipa-poller/net-next/wt-1/build_32bit'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
  CALL    ../scripts/checksyscalls.sh
  CC [M]  net/can/raw.o
  CC [M]  net/can/bcm.o
  CC [M]  net/can/isotp.o
  CC [M]  net/can/j1939/main.o
  CC [M]  net/can/j1939/socket.o