Hi Matthew, Thank you for the patch! Yet something to improve: [auto build test ERROR on bpf-next/master] [also build test ERROR on next-20200117] [cannot apply to bpf/master net-next/master net/master linus/master sparc-next/master v5.5-rc6] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Matthew-Cover/bpf-add-bpf_ct_lookup_-tcp-udp-helpers/20200118-153032 base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master config: powerpc-warp_defconfig (attached as .config) compiler: powerpc-linux-gcc (GCC) 7.5.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree GCC_VERSION=7.5.0 make.cross ARCH=powerpc If you fix the issue, kindly add following tag Reported-by: kbuild test robot All errors (new ones prefixed by >>): init/do_mounts.o: In function `bpf_nf_conn_is_valid_access': >> do_mounts.c:(.text+0x554): multiple definition of `bpf_nf_conn_is_valid_access' init/main.o:main.c:(.text+0x198): first defined here init/do_mounts.o: In function `bpf_nf_conn_convert_ctx_access': >> do_mounts.c:(.text+0x564): multiple definition of `bpf_nf_conn_convert_ctx_access' init/main.o:main.c:(.text+0x1a8): first defined here init/do_mounts_rd.o: In function `bpf_nf_conn_is_valid_access': do_mounts_rd.c:(.text+0x0): multiple definition of `bpf_nf_conn_is_valid_access' init/main.o:main.c:(.text+0x198): first defined here init/do_mounts_rd.o: In function `bpf_nf_conn_convert_ctx_access': do_mounts_rd.c:(.text+0x10): multiple definition of `bpf_nf_conn_convert_ctx_access' init/main.o:main.c:(.text+0x1a8): first defined here init/do_mounts_initrd.o: In function `bpf_nf_conn_is_valid_access': do_mounts_initrd.c:(.text+0x70): multiple definition of `bpf_nf_conn_is_valid_access' init/main.o:main.c:(.text+0x198): first defined here init/do_mounts_initrd.o: In function `bpf_nf_conn_convert_ctx_access': do_mounts_initrd.c:(.text+0x80): multiple definition of `bpf_nf_conn_convert_ctx_access' init/main.o:main.c:(.text+0x1a8): first defined here init/initramfs.o: In function `bpf_nf_conn_is_valid_access': initramfs.c:(.text+0x0): multiple definition of `bpf_nf_conn_is_valid_access' init/main.o:main.c:(.text+0x198): first defined here init/initramfs.o: In function `bpf_nf_conn_convert_ctx_access': initramfs.c:(.text+0x10): multiple definition of `bpf_nf_conn_convert_ctx_access' init/main.o:main.c:(.text+0x1a8): first defined here arch/powerpc/kernel/ptrace.o: In function `bpf_nf_conn_is_valid_access': ptrace.c:(.text+0x87c): multiple definition of `bpf_nf_conn_is_valid_access' init/main.o:main.c:(.text+0x198): first defined here arch/powerpc/kernel/ptrace.o: In function `bpf_nf_conn_convert_ctx_access': ptrace.c:(.text+0x88c): multiple definition of `bpf_nf_conn_convert_ctx_access' init/main.o:main.c:(.text+0x1a8): first defined here arch/powerpc/kernel/syscalls.o: In function `bpf_nf_conn_is_valid_access': syscalls.c:(.text+0x0): multiple definition of `bpf_nf_conn_is_valid_access' init/main.o:main.c:(.text+0x198): first defined here arch/powerpc/kernel/syscalls.o: In function `bpf_nf_conn_convert_ctx_access': syscalls.c:(.text+0x10): multiple definition of `bpf_nf_conn_convert_ctx_access' init/main.o:main.c:(.text+0x1a8): first defined here arch/powerpc/kernel/align.o: In function `bpf_nf_conn_is_valid_access': align.c:(.text+0x0): multiple definition of `bpf_nf_conn_is_valid_access' init/main.o:main.c:(.text+0x198): first defined here arch/powerpc/kernel/align.o: In function `bpf_nf_conn_convert_ctx_access': align.c:(.text+0x10): multiple definition of `bpf_nf_conn_convert_ctx_access' init/main.o:main.c:(.text+0x1a8): first defined here arch/powerpc/kernel/signal_32.o: In function `bpf_nf_conn_is_valid_access': signal_32.c:(.text+0x2fc): multiple definition of `bpf_nf_conn_is_valid_access' init/main.o:main.c:(.text+0x198): first defined here arch/powerpc/kernel/signal_32.o: In function `bpf_nf_conn_convert_ctx_access': signal_32.c:(.text+0x30c): multiple definition of `bpf_nf_conn_convert_ctx_access' init/main.o:main.c:(.text+0x1a8): first defined here arch/powerpc/kernel/process.o: In function `bpf_nf_conn_is_valid_access': process.c:(.text+0x55c): multiple definition of `bpf_nf_conn_is_valid_access' init/main.o:main.c:(.text+0x198): first defined here arch/powerpc/kernel/process.o: In function `bpf_nf_conn_convert_ctx_access': process.c:(.text+0x56c): multiple definition of `bpf_nf_conn_convert_ctx_access' init/main.o:main.c:(.text+0x1a8): first defined here arch/powerpc/kernel/signal.o: In function `bpf_nf_conn_is_valid_access': signal.c:(.text+0x0): multiple definition of `bpf_nf_conn_is_valid_access' init/main.o:main.c:(.text+0x198): first defined here arch/powerpc/kernel/signal.o: In function `bpf_nf_conn_convert_ctx_access': signal.c:(.text+0x10): multiple definition of `bpf_nf_conn_convert_ctx_access' init/main.o:main.c:(.text+0x1a8): first defined here arch/powerpc/kernel/time.o: In function `bpf_nf_conn_is_valid_access': time.c:(.text+0x43c): multiple definition of `bpf_nf_conn_is_valid_access' init/main.o:main.c:(.text+0x198): first defined here arch/powerpc/kernel/time.o: In function `bpf_nf_conn_convert_ctx_access': time.c:(.text+0x44c): multiple definition of `bpf_nf_conn_convert_ctx_access' init/main.o:main.c:(.text+0x1a8): first defined here arch/powerpc/kernel/traps.o: In function `bpf_nf_conn_is_valid_access': traps.c:(.text+0x148): multiple definition of `bpf_nf_conn_is_valid_access' init/main.o:main.c:(.text+0x198): first defined here arch/powerpc/kernel/traps.o: In function `bpf_nf_conn_convert_ctx_access': traps.c:(.text+0x158): multiple definition of `bpf_nf_conn_convert_ctx_access' init/main.o:main.c:(.text+0x1a8): first defined here arch/powerpc/kernel/setup-common.o: In function `bpf_nf_conn_is_valid_access': setup-common.c:(.text+0x66c): multiple definition of `bpf_nf_conn_is_valid_access' init/main.o:main.c:(.text+0x198): first defined here arch/powerpc/kernel/setup-common.o: In function `bpf_nf_conn_convert_ctx_access': setup-common.c:(.text+0x67c): multiple definition of `bpf_nf_conn_convert_ctx_access' init/main.o:main.c:(.text+0x1a8): first defined here arch/powerpc/kernel/prom_parse.o: In function `bpf_nf_conn_is_valid_access': prom_parse.c:(.text+0x0): multiple definition of `bpf_nf_conn_is_valid_access' init/main.o:main.c:(.text+0x198): first defined here arch/powerpc/kernel/prom_parse.o: In function `bpf_nf_conn_convert_ctx_access': prom_parse.c:(.text+0x10): multiple definition of `bpf_nf_conn_convert_ctx_access' init/main.o:main.c:(.text+0x1a8): first defined here arch/powerpc/mm/fault.o: In function `bpf_nf_conn_is_valid_access': fault.c:(.text+0x148): multiple definition of `bpf_nf_conn_is_valid_access' init/main.o:main.c:(.text+0x198): first defined here arch/powerpc/mm/fault.o: In function `bpf_nf_conn_convert_ctx_access': fault.c:(.text+0x158): multiple definition of `bpf_nf_conn_convert_ctx_access' init/main.o:main.c:(.text+0x1a8): first defined here arch/powerpc/mm/mem.o: In function `bpf_nf_conn_is_valid_access': mem.c:(.text+0x208): multiple definition of `bpf_nf_conn_is_valid_access' init/main.o:main.c:(.text+0x198): first defined here arch/powerpc/mm/mem.o: In function `bpf_nf_conn_convert_ctx_access': mem.c:(.text+0x218): multiple definition of `bpf_nf_conn_convert_ctx_access' init/main.o:main.c:(.text+0x1a8): first defined here arch/powerpc/mm/pgtable.o: In function `bpf_nf_conn_is_valid_access': pgtable.c:(.text+0xa0): multiple definition of `bpf_nf_conn_is_valid_access' init/main.o:main.c:(.text+0x198): first defined here arch/powerpc/mm/pgtable.o: In function `bpf_nf_conn_convert_ctx_access': pgtable.c:(.text+0xb0): multiple definition of `bpf_nf_conn_convert_ctx_access' init/main.o:main.c:(.text+0x1a8): first defined here arch/powerpc/mm/init_32.o: In function `bpf_nf_conn_is_valid_access': init_32.c:(.text+0x0): multiple definition of `bpf_nf_conn_is_valid_access' init/main.o:main.c:(.text+0x198): first defined here --- 0-DAY kernel test infrastructure 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