Using -Oline -j 96 W=1 C=1 redirect to /tmp/tmp.JRbbePzAqW and /tmp/tmp.pRypNSUzWr
CC=ccache gcc
gcc (GCC) 15.2.1 20251211 (Red Hat 15.2.1-5)
Tree base:
dbf8fe85a16a ("Merge tag 'net-6.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net")
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
  CC [M]  drivers/net/ethernet/dlink/dl2k.o
  CHECK   ../drivers/net/ethernet/dlink/dl2k.c
  CC [M]  net/ipv4/netfilter/iptable_nat.o
  CHECK   ../net/ipv4/netfilter/iptable_nat.c
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#954)
  CC [M]  drivers/net/ethernet/dlink/dl2k.mod.o
  LD [M]  drivers/net/ethernet/dlink/dl2k.ko
  CC [M]  net/ipv4/netfilter/iptable_nat.mod.o
  LD [M]  net/ipv4/netfilter/iptable_nat.ko
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]  net/ipv4/netfilter/iptable_nat.o
  CHECK   ../net/ipv4/netfilter/iptable_nat.c
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#954)
  CC [M]  net/ipv4/netfilter/iptable_nat.mod.o
  LD [M]  net/ipv4/netfilter/iptable_nat.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]  net/ipv4/netfilter/iptable_nat.o
  CHECK   ../net/ipv4/netfilter/iptable_nat.c
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#954)
  CC [M]  net/ipv4/netfilter/iptable_nat.mod.o
  LD [M]  net/ipv4/netfilter/iptable_nat.ko