af_rxrpc: Handle frames delivered from another VM

On input, CHECKSUM_PARTIAL should be treated the same way as
CHECKSUM_UNNECESSARY. See include/linux/skbuff.h

Signed-off-by: Tim Smith <tim@electronghost.co.uk>
Signed-off-by: David Howells <dhowells@redhat.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/net/rxrpc/ar-recvmsg.c b/net/rxrpc/ar-recvmsg.c
index 64cba2e35156..34b5490dde65 100644
--- a/net/rxrpc/ar-recvmsg.c
+++ b/net/rxrpc/ar-recvmsg.c
@@ -180,7 +180,8 @@ int rxrpc_recvmsg(struct kiocb *iocb, struct socket *sock,
                 if (copy > len - copied)
                         copy = len - copied;
 
-                if (skb->ip_summed == CHECKSUM_UNNECESSARY) {
+                if (skb->ip_summed == CHECKSUM_UNNECESSARY ||
+                    skb->ip_summed == CHECKSUM_PARTIAL) {
                         ret = skb_copy_datagram_iovec(skb, offset,
                                                       msg->msg_iov, copy);
                 } else {