Using -Oline -j 96 W=1 redirect to /tmp/tmp.mMdfe6Dq6W and /tmp/tmp.AFizIL8VL3
LLVM=1 cc="ccache clang"
clang version 21.1.6 (Fedora 21.1.6-1.fc43)
Tree base:
1f73a56f9860 ("net: vxlan: prevent NULL deref in vxlan_xmit_one")
Baseline building the tree
make[1]: Entering directory '/srv/nipa-poller/net/wt-0/build_clang'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/srv/nipa-poller/net/wt-0/build_clang'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
  DESCEND objtool
  INSTALL libsubcmd_headers
  CALL    ../scripts/checksyscalls.sh
  CC [M]  drivers/net/ethernet/cadence/macb_main.o
  LD [M]  drivers/net/ethernet/cadence/macb.o
  CC [M]  net/sched/sch_ets.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#74)
  CC [M]  drivers/net/ethernet/cadence/macb.mod.o
  LD [M]  drivers/net/ethernet/cadence/macb.ko
  CC [M]  net/sched/sch_ets.mod.o
  LD [M]  net/sched/sch_ets.ko
Building the tree before the patch
make[1]: Entering directory '/srv/nipa-poller/net/wt-0/build_clang'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/srv/nipa-poller/net/wt-0/build_clang'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
  DESCEND objtool
  CALL    ../scripts/checksyscalls.sh
  INSTALL libsubcmd_headers
  CC [M]  net/sched/sch_ets.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#74)
  CC [M]  net/sched/sch_ets.mod.o
  LD [M]  net/sched/sch_ets.ko
Building the tree with the patch
make[1]: Entering directory '/srv/nipa-poller/net/wt-0/build_clang'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/srv/nipa-poller/net/wt-0/build_clang'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
  DESCEND objtool
  INSTALL libsubcmd_headers
  CALL    ../scripts/checksyscalls.sh
  CC [M]  net/sched/sch_ets.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#74)
  CC [M]  net/sched/sch_ets.mod.o
  LD [M]  net/sched/sch_ets.ko