Using -Oline -j 72 W=1 redirect to /tmp/tmp.3WugFNqUDO and /tmp/tmp.T9jyHsRDF3
LLVM=1 cc=clang
clang version 20.1.3 (Fedora 20.1.3-1.fc42)
Tree base:
3d19169b5b6e ("tun: use napi_build_skb in __tun_build_skb")
Skip baseline build, not the first patch and no Kconfig updates
Building the tree before the patch
make[1]: Entering directory '/home/nipa/net-next/wt-1/build_clang'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/home/nipa/net-next/wt-1/build_clang'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
  DESCEND objtool
  CALL    ../scripts/checksyscalls.sh
  INSTALL libsubcmd_headers
  CHK     kernel/kheaders_data.tar.xz
  CC [M]  drivers/net/tun.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#1732)
  LD [M]  drivers/net/tun.ko
Building the tree with the patch
make[1]: Entering directory '/home/nipa/net-next/wt-1/build_clang'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/home/nipa/net-next/wt-1/build_clang'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
  DESCEND objtool
  CALL    ../scripts/checksyscalls.sh
  INSTALL libsubcmd_headers
  CHK     kernel/kheaders_data.tar.xz
  CC [M]  drivers/net/tun.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#1732)
  CC [M]  drivers/net/tun.mod.o
  LD [M]  drivers/net/tun.ko