Using -Oline -j 72 W=1 redirect to /tmp/tmp.Wc5jtp2GBm and /tmp/tmp.03lgaG8yKi
LLVM=1 cc=clang
clang version 18.1.6 (Fedora 18.1.6-3.fc40)
Tree base:
f153831097b4 ("net: fix rc7's __skb_datagram_iter()")
Baseline building the tree
make[1]: Entering directory '/home/nipa/bpf/wt-0/build_clang'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/home/nipa/bpf/wt-0/build_clang'
  SYNC    include/config/auto.conf
  GEN     Makefile
mkdir -p /home/nipa/bpf/wt-0/build_clang/tools/objtool && make O=/home/nipa/bpf/wt-0/build_clang subdir=tools/objtool --no-print-directory -C objtool 
  GEN     Makefile
  INSTALL libsubcmd_headers
  CALL    ../scripts/checksyscalls.sh
  CHK     kernel/kheaders_data.tar.xz
  CC      net/core/datagram.o
  AR      net/core/built-in.a
  CC [M]  drivers/net/fjes/fjes_trace.o
  AR      net/built-in.a
  CC      kernel/bpf/helpers.o
  CC      kernel/bpf/verifier.o
  AR      kernel/bpf/built-in.a
  AR      kernel/built-in.a
Building the tree before the patch
make[1]: Entering directory '/home/nipa/bpf/wt-0/build_clang'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/home/nipa/bpf/wt-0/build_clang'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
mkdir -p /home/nipa/bpf/wt-0/build_clang/tools/objtool && make O=/home/nipa/bpf/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]  drivers/net/fjes/fjes_trace.o
  CC      kernel/bpf/verifier.o
  AR      kernel/bpf/built-in.a
  AR      kernel/built-in.a
Building the tree with the patch
make[1]: Entering directory '/home/nipa/bpf/wt-0/build_clang'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/home/nipa/bpf/wt-0/build_clang'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
mkdir -p /home/nipa/bpf/wt-0/build_clang/tools/objtool && make O=/home/nipa/bpf/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]  drivers/net/fjes/fjes_trace.o
  CC      kernel/bpf/verifier.o
  AR      kernel/bpf/built-in.a
  AR      kernel/built-in.a