Using -Oline -j 72 W=1 redirect to /tmp/tmp.woGBPq4F3J and /tmp/tmp.PffCdFaPqx
LLVM=1 cc=clang
clang version 18.1.6 (Fedora 18.1.6-3.fc40)
Tree base:
12ca465ccd62 ("tun: Introduce virtio-net hash reporting feature")
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
mkdir -p /home/nipa/net-next/wt-1/build_clang/tools/objtool && make O=/home/nipa/net-next/wt-1/build_clang subdir=tools/objtool --no-print-directory -C objtool 
  HDRINST usr/include/linux/if_tun.h
  INSTALL libsubcmd_headers
  CALL    ../scripts/checksyscalls.sh
  HDRTEST usr/include/linux/if_tun.h
  CC      net/socket.o
  CC [M]  drivers/net/macvtap.o
  CC      net/core/skbuff.o
  CC [M]  drivers/vhost/net.o
  CC [M]  drivers/net/ipvlan/ipvtap.o
  AR      net/core/built-in.a
  CC [M]  drivers/net/tap.o
  AR      net/built-in.a
  LD [M]  drivers/vhost/vhost_net.o
  CC [M]  drivers/net/tun.o
  CHK     kernel/kheaders_data.tar.xz
  GEN     kernel/kheaders_data.tar.xz
  CC [M]  kernel/kheaders.o
  AR      built-in.a
  AR      vmlinux.a
  LD      vmlinux.o
  OBJCOPY modules.builtin.modinfo
  GEN     modules.builtin
  GEN     .vmlinux.objs
  MODPOST Module.symvers
  UPD     include/generated/utsversion.h
  CC      init/version-timestamp.o
  KSYMS   .tmp_vmlinux0.kallsyms.S
  AS      .tmp_vmlinux0.kallsyms.o
  LD      .tmp_vmlinux1
  NM      .tmp_vmlinux1.syms
  KSYMS   .tmp_vmlinux1.kallsyms.S
  AS      .tmp_vmlinux1.kallsyms.o
  LD      .tmp_vmlinux2
  NM      .tmp_vmlinux2.syms
  KSYMS   .tmp_vmlinux2.kallsyms.S
  AS      .tmp_vmlinux2.kallsyms.o
  LD      vmlinux
  NM      System.map
  SORTTAB vmlinux
  RELOCS  arch/x86/boot/compressed/vmlinux.relocs
  RSTRIP  vmlinux
  CC      arch/x86/boot/version.o
  OBJCOPY arch/x86/boot/compressed/vmlinux.bin
  CC      arch/x86/boot/compressed/kaslr.o
  VOFFSET arch/x86/boot/compressed/../voffset.h
  CC      arch/x86/boot/compressed/misc.o
  GZIP    arch/x86/boot/compressed/vmlinux.bin.gz
  MKPIGGY arch/x86/boot/compressed/piggy.S
  AS      arch/x86/boot/compressed/piggy.o
  LD      arch/x86/boot/compressed/vmlinux
  ZOFFSET arch/x86/boot/zoffset.h
  OBJCOPY arch/x86/boot/vmlinux.bin
  AS      arch/x86/boot/header.o
  LD      arch/x86/boot/setup.elf
  OBJCOPY arch/x86/boot/setup.bin
  BUILD   arch/x86/boot/bzImage
Kernel: arch/x86/boot/bzImage is ready  (#5757)
  LD [M]  kernel/kheaders.ko
  LD [M]  drivers/net/ipvlan/ipvtap.ko
  LD [M]  drivers/net/macvtap.ko
  LD [M]  drivers/net/tun.ko
  LD [M]  drivers/net/tap.ko
  LD [M]  drivers/vhost/vhost_net.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
mkdir -p /home/nipa/net-next/wt-1/build_clang/tools/objtool && make O=/home/nipa/net-next/wt-1/build_clang subdir=tools/objtool --no-print-directory -C objtool 
  HDRINST usr/include/linux/if_tun.h
  INSTALL libsubcmd_headers
  CALL    ../scripts/checksyscalls.sh
  HDRTEST usr/include/linux/if_tun.h
  CC [M]  drivers/net/macvtap.o
  CC      net/socket.o
  CC [M]  drivers/net/tun.o
  CC [M]  drivers/net/ipvlan/ipvtap.o
  CC [M]  drivers/net/tap.o
  CC [M]  drivers/vhost/net.o
  LD [M]  drivers/vhost/vhost_net.o
  CC      net/core/skbuff.o
  AR      net/core/built-in.a
  AR      net/built-in.a
  CHK     kernel/kheaders_data.tar.xz
  GEN     kernel/kheaders_data.tar.xz
  CC [M]  kernel/kheaders.o