Merge branch 'bpf-fixes'

Merge branch 'bpf-fixes'

Daniel Borkmann says:

====================
Two BPF fixes

The set fixes cb_access and xdp_adjust_head bits in struct bpf_prog,
that are used for requirement checks on the program rather than f.e.
heuristics. Thus, for tail calls, we cannot make any assumptions and
are forced to set them.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>