new helper: memcpy_to_msg()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --cc crypto/algif_hash.c
Simple merge

diff --cc include/linux/skbuff.h
Simple merge

diff --cc net/caif/caif_socket.c
Simple merge

diff --cc net/can/bcm.c
Simple merge

diff --cc net/can/raw.c
Simple merge

diff --cc net/decnet/af_decnet.c
Simple merge

diff --cc net/ipv4/tcp.c
Simple merge

diff --cc net/irda/af_irda.c
Simple merge

diff --cc net/packet/af_packet.c
Simple merge