With generated kfunc prototypes, the existing callback names will
conflict. Fix by namespacing with a bpf_ prefix.
Signed-off-by: Daniel Xu <dxu@dxuuu.xyz>
Link: https://lore.kernel.org/r/efe7aadad8a054e5aeeba94b1d2e4502eee09d7a.1718207789.git.dxu@dxuuu.xyzSigned-off-by: Alexei Starovoitov <ast@kernel.org>