bpf_csum_diff 1970 net/core/filter.c BPF_CALL_5(bpf_csum_diff, __be32 *, from, u32, from_size, bpf_csum_diff 1998 net/core/filter.c .func = bpf_csum_diff, bpf_csum_diff 63 samples/bpf/xdp_adjust_tail_kern.c *csum = bpf_csum_diff(0, 0, data_start, data_size, *csum); bpf_csum_diff 286 tools/testing/selftests/bpf/bpf_helpers.h static int (*bpf_csum_diff)(void *from, int from_size, void *to, int to_size, int seed) = bpf_csum_diff 53 tools/testing/selftests/bpf/progs/xdping_kern.c sum = bpf_csum_diff(0, 0, data_start, data_size, 0);