Using -Oline -j 72 W=1 redirect to /tmp/tmp.9XfFHfo2BV and /tmp/tmp.OhsguYACD0
LLVM=1 cc=clang
clang version 19.1.5 (Fedora 19.1.5-1.fc41)
Tree base:
ce1219c3f76b ("net: mctp: handle skb cleanup on sock_queue failures")
Baseline building the tree
make[1]: Entering directory '/home/nipa/net/wt-0/build_clang'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/home/nipa/net/wt-0/build_clang'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
mkdir -p /home/nipa/net/wt-0/build_clang/tools/objtool && make O=/home/nipa/net/wt-0/build_clang subdir=tools/objtool --no-print-directory -C objtool 
  CALL    ../scripts/checksyscalls.sh
  INSTALL libsubcmd_headers
  CHK     kernel/kheaders_data.tar.xz
  CC      net/mctp/route.o
  AR      net/mctp/built-in.a
  CC [M]  net/ipv4/ip_tunnel.o
  AR      net/built-in.a
  CC [M]  drivers/net/ethernet/mellanox/mlxsw/spectrum_span.o
  LD [M]  drivers/net/ethernet/mellanox/mlxsw/mlxsw_spectrum.o
  AR      built-in.a
  AR      vmlinux.a
  LD      vmlinux.o
  OBJCOPY modules.builtin.modinfo
  GEN     modules.builtin
  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
  GEN     modules.builtin.ranges
  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
  CC [M]  drivers/net/ethernet/mellanox/mlxsw/mlxsw_spectrum.mod.o
  LD [M]  drivers/net/ethernet/mellanox/mlxsw/mlxsw_spectrum.ko
  CC [M]  net/ipv4/ip_tunnel.mod.o
  LD [M]  net/ipv4/ip_tunnel.ko
  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  (#1605)
Building the tree before the patch
make[1]: Entering directory '/home/nipa/net/wt-0/build_clang'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/home/nipa/net/wt-0/build_clang'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
mkdir -p /home/nipa/net/wt-0/build_clang/tools/objtool && make O=/home/nipa/net/wt-0/build_clang subdir=tools/objtool --no-print-directory -C objtool 
  CALL    ../scripts/checksyscalls.sh
  INSTALL libsubcmd_headers
  CHK     kernel/kheaders_data.tar.xz
  CC [M]  net/ipv4/ip_tunnel.o
  CC [M]  drivers/net/ethernet/mellanox/mlxsw/spectrum_span.o
  LD [M]  drivers/net/ethernet/mellanox/mlxsw/mlxsw_spectrum.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#1605)
  CC [M]  drivers/net/ethernet/mellanox/mlxsw/mlxsw_spectrum.mod.o
  LD [M]  drivers/net/ethernet/mellanox/mlxsw/mlxsw_spectrum.ko
  CC [M]  net/ipv4/ip_tunnel.mod.o
  LD [M]  net/ipv4/ip_tunnel.ko
Building the tree with the patch
make[1]: Entering directory '/home/nipa/net/wt-0/build_clang'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/home/nipa/net/wt-0/build_clang'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
mkdir -p /home/nipa/net/wt-0/build_clang/tools/objtool && make O=/home/nipa/net/wt-0/build_clang subdir=tools/objtool --no-print-directory -C objtool 
  CALL    ../scripts/checksyscalls.sh
  INSTALL libsubcmd_headers
  CHK     kernel/kheaders_data.tar.xz
  CC [M]  net/ipv4/ip_tunnel.o
  CC [M]  drivers/net/ethernet/mellanox/mlxsw/spectrum_span.o
  LD [M]  drivers/net/ethernet/mellanox/mlxsw/mlxsw_spectrum.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#1605)
  CC [M]  drivers/net/ethernet/mellanox/mlxsw/mlxsw_spectrum.mod.o
  LD [M]  drivers/net/ethernet/mellanox/mlxsw/mlxsw_spectrum.ko
  CC [M]  net/ipv4/ip_tunnel.mod.o
  LD [M]  net/ipv4/ip_tunnel.ko