msg_zerocopy_alloc is only used by msg_zerocopy_realloc; remove the
export and make static in skbuff.c
Signed-off-by: NDavid Ahern <dsahern@kernel.org>
Acked-by: NJonathan Lemon <jonathan.lemon@gmail.com>
Link: https://lore.kernel.org/r/20220504170947.18773-1-dsahern@kernel.orgSigned-off-by: NJakub Kicinski <kuba@kernel.org>