packet: do not set TP_STATUS_CSUM_VALID on CHECKSUM_COMPLETE

packet: do not set TP_STATUS_CSUM_VALID on CHECKSUM_COMPLETE

[ Upstream commit b85f628aa158a653c006e9c1405a117baef8c868 ]

CHECKSUM_COMPLETE signals that skb->csum stores the sum over the
entire packet. It does not imply that an embedded l4 checksum
field has been validated.

Fixes: 682f048bd494 ("af_packet: pass checksum validation status to the user")
Signed-off-by: Willem de Bruijn <willemb@google.com>
Link: https://lore.kernel.org/r/20221128161812.640098-1-willemdebruijn.kernel@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>