Using -Oline -j 72 W=1 C=1 redirect to /tmp/tmp.hC8OYBdkIJ and /tmp/tmp.KdFCpjWfFJ
CC=ccache gcc
gcc (GCC) 14.1.1 20240507 (Red Hat 14.1.1-1)
Tree base:
b99a95bc56c5 ("bpf: fix UML x86_64 compile failure")
Baseline building the tree
make[1]: Entering directory '/home/nipa/bpf/wt-0/build_allmodconfig_warn'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/home/nipa/bpf/wt-0/build_allmodconfig_warn'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
mkdir -p /home/nipa/bpf/wt-0/build_allmodconfig_warn/tools/objtool && make O=/home/nipa/bpf/wt-0/build_allmodconfig_warn subdir=tools/objtool --no-print-directory -C objtool 
  INSTALL libsubcmd_headers
  CALL    ../scripts/checksyscalls.sh
  CC      net/bpf/bpf_dummy_struct_ops.o
  CHECK   ../net/bpf/bpf_dummy_struct_ops.c
  AR      net/bpf/built-in.a
  CC      net/ipv4/bpf_tcp_ca.o
  CHECK   ../net/ipv4/bpf_tcp_ca.c
  AR      net/ipv4/built-in.a
  CC      kernel/trace/bpf_trace.o
  CC      kernel/bpf/core.o
  CC      kernel/bpf/syscall.o
  CHECK   ../kernel/trace/bpf_trace.c
  CC      kernel/bpf/log.o
  CHECK   ../kernel/bpf/core.c
  CHECK   ../kernel/bpf/log.c
  CHECK   ../kernel/bpf/syscall.c
  CC      kernel/bpf/trampoline.o
  CC      kernel/bpf/btf.o
  CC      kernel/bpf/offload.o
  CC      kernel/bpf/cgroup.o
  CC      kernel/bpf/bpf_struct_ops.o
  CC      kernel/bpf/bpf_lsm.o
  CC      kernel/bpf/relo_core.o
  CC      kernel/bpf/verifier.o
  AR      kernel/trace/built-in.a
  CHECK   ../kernel/bpf/trampoline.c
  CC [M]  drivers/net/ethernet/netronome/nfp/bpf/jit.o
  CHECK   ../kernel/bpf/offload.c
  CHECK   ../kernel/bpf/bpf_struct_ops.c
  CHECK   ../kernel/bpf/btf.c
  CHECK   ../kernel/bpf/cgroup.c
  CHECK   ../tools/lib/bpf/relo_core.c
  CHECK   ../kernel/bpf/bpf_lsm.c
  CHECK   ../drivers/net/ethernet/netronome/nfp/bpf/jit.c
  CHECK   ../kernel/bpf/verifier.c
  CC [M]  drivers/net/netdevsim/bpf.o
  CC [M]  drivers/net/ethernet/netronome/nfp/bpf/verifier.o
  CC [M]  drivers/net/ethernet/netronome/nfp/bpf/main.o
  CC [M]  drivers/net/ethernet/netronome/nfp/bpf/cmsg.o
  CC [M]  drivers/net/ethernet/netronome/nfp/bpf/offload.o
  CHECK   ../drivers/net/netdevsim/bpf.c
  AR      kernel/bpf/built-in.a
  CHECK   ../drivers/net/ethernet/netronome/nfp/bpf/verifier.c
  CHECK   ../drivers/net/ethernet/netronome/nfp/bpf/cmsg.c
  AR      kernel/built-in.a
  CHECK   ../drivers/net/ethernet/netronome/nfp/bpf/main.c
  LD [M]  drivers/net/netdevsim/netdevsim.o
  CHECK   ../drivers/net/ethernet/netronome/nfp/bpf/offload.c
  LD [M]  drivers/net/ethernet/netronome/nfp/nfp.o
  CC [M]  drivers/net/fjes/fjes_trace.o
  CC      net/core/filter.o
  CHECK   ../net/core/filter.c
  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
  CHECK   ../kernel/kheaders.c
Building the tree before the patch
make[1]: Entering directory '/home/nipa/bpf/wt-0/build_allmodconfig_warn'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/home/nipa/bpf/wt-0/build_allmodconfig_warn'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
mkdir -p /home/nipa/bpf/wt-0/build_allmodconfig_warn/tools/objtool && make O=/home/nipa/bpf/wt-0/build_allmodconfig_warn subdir=tools/objtool --no-print-directory -C objtool 
  INSTALL libsubcmd_headers
  CALL    ../scripts/checksyscalls.sh
  CC      net/core/filter.o
  CHECK   ../net/core/filter.c
  CHK     kernel/kheaders_data.tar.xz
  AR      net/core/built-in.a
  AR      net/built-in.a
  CC [M]  drivers/net/fjes/fjes_trace.o
Building the tree with the patch
make[1]: Entering directory '/home/nipa/bpf/wt-0/build_allmodconfig_warn'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/home/nipa/bpf/wt-0/build_allmodconfig_warn'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
mkdir -p /home/nipa/bpf/wt-0/build_allmodconfig_warn/tools/objtool && make O=/home/nipa/bpf/wt-0/build_allmodconfig_warn subdir=tools/objtool --no-print-directory -C objtool 
  INSTALL libsubcmd_headers
  CALL    ../scripts/checksyscalls.sh
  CC      net/core/filter.o
  CHECK   ../net/core/filter.c
  CHK     kernel/kheaders_data.tar.xz
  AR      net/core/built-in.a
  AR      net/built-in.a
  CC [M]  drivers/net/fjes/fjes_trace.o