Using -Oline -j 72 W=1 redirect to /tmp/tmp.nA5NKQa37F and /tmp/tmp.DbJhkOkIe1
LLVM=1 cc=clang
clang version 19.1.5 (Fedora 19.1.5-1.fc41)
Tree base:
16ebb6f5b629 ("nfp: bpf: prevent integer overflow in nfp_bpf_event_output()")
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 [M]  drivers/net/phy/realtek.o
  CC [M]  net/ipv4/tcp_cubic.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#1745)
  CC [M]  drivers/net/phy/realtek.mod.o
  LD [M]  drivers/net/phy/realtek.ko
  CC [M]  net/ipv4/tcp_cubic.mod.o
  LD [M]  net/ipv4/tcp_cubic.ko
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/tcp_cubic.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#1745)
  CC [M]  net/ipv4/tcp_cubic.mod.o
  LD [M]  net/ipv4/tcp_cubic.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/tcp_cubic.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#1745)
  CC [M]  net/ipv4/tcp_cubic.mod.o
  LD [M]  net/ipv4/tcp_cubic.ko