Using -Oline -j 72 W=1 redirect to /tmp/tmp.OlRv1FnE25 and /tmp/tmp.42WGqHER1K
LLVM=1 cc=clang
clang version 18.1.1 (Fedora 18.1.1-1.fc40)
Tree base:
fb31de8f8f88 ("l2tp: drop the now unused l2tp_tunnel_get_session")
Skip baseline build, not the first patch
Building the tree before the patch
make[1]: Entering directory '/home/nipa/net-next/wt-0/build_clang'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/home/nipa/net-next/wt-0/build_clang'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
mkdir -p /home/nipa/net-next/wt-0/build_clang/tools/objtool && make O=/home/nipa/net-next/wt-0/build_clang subdir=tools/objtool --no-print-directory -C objtool 
  INSTALL libsubcmd_headers
  CALL    ../scripts/checksyscalls.sh
  CHK     kernel/kheaders_data.tar.xz
  CC [M]  net/l2tp/l2tp_eth.o
  CC [M]  net/l2tp/l2tp_netlink.o
  CC [M]  net/l2tp/l2tp_ip.o
  CC [M]  net/l2tp/l2tp_debugfs.o
  CC [M]  net/l2tp/l2tp_ppp.o
  CC [M]  net/l2tp/l2tp_ip6.o
  CC [M]  net/l2tp/l2tp_core.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#2928)
  LD [M]  net/l2tp/l2tp_core.ko
  LD [M]  net/l2tp/l2tp_ppp.ko
  LD [M]  net/l2tp/l2tp_ip.ko
  LD [M]  net/l2tp/l2tp_netlink.ko
  LD [M]  net/l2tp/l2tp_eth.ko
  LD [M]  net/l2tp/l2tp_debugfs.ko
  LD [M]  net/l2tp/l2tp_ip6.ko
Building the tree with the patch
make[1]: Entering directory '/home/nipa/net-next/wt-0/build_clang'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/home/nipa/net-next/wt-0/build_clang'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
mkdir -p /home/nipa/net-next/wt-0/build_clang/tools/objtool && make O=/home/nipa/net-next/wt-0/build_clang subdir=tools/objtool --no-print-directory -C objtool 
  INSTALL libsubcmd_headers
  CALL    ../scripts/checksyscalls.sh
  CHK     kernel/kheaders_data.tar.xz
  CC [M]  net/l2tp/l2tp_debugfs.o
  CC [M]  net/l2tp/l2tp_netlink.o
  CC [M]  net/l2tp/l2tp_ppp.o
  CC [M]  net/l2tp/l2tp_eth.o
  CC [M]  net/l2tp/l2tp_ip6.o
  CC [M]  net/l2tp/l2tp_ip.o
  CC [M]  net/l2tp/l2tp_core.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#2928)
  CC [M]  net/l2tp/l2tp_core.mod.o
  CC [M]  net/l2tp/l2tp_ppp.mod.o
  LD [M]  net/l2tp/l2tp_core.ko
  CC [M]  net/l2tp/l2tp_ip.mod.o
  CC [M]  net/l2tp/l2tp_netlink.mod.o
  CC [M]  net/l2tp/l2tp_eth.mod.o
  LD [M]  net/l2tp/l2tp_ppp.ko
  LD [M]  net/l2tp/l2tp_ip.ko
  CC [M]  net/l2tp/l2tp_debugfs.mod.o
  LD [M]  net/l2tp/l2tp_netlink.ko
  CC [M]  net/l2tp/l2tp_ip6.mod.o
  LD [M]  net/l2tp/l2tp_eth.ko
  LD [M]  net/l2tp/l2tp_debugfs.ko
  LD [M]  net/l2tp/l2tp_ip6.ko