diff options
| author | Stefano Garzarella <sgarzare@redhat.com> | 2021-06-18 15:35:26 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-06-18 12:59:53 -0700 |
| commit | 91aa49a8fa0ffa66966be275b2575009cc12fd3b (patch) | |
| tree | 6cb49e7b655cc363f24a5d479349c6d2a6dba712 | |
| parent | 0de5b2e67275695d6ad7369c594feb1578f891fd (diff) | |
vsock/virtio: remove redundant `copy_failed` variable
When memcpy_to_msg() fails in virtio_transport_seqpacket_do_dequeue(),
we already set `dequeued_len` with the negative error value returned
by memcpy_to_msg().
So we can directly check `dequeued_len` value instead of using a
dedicated flag variable to skip the copy path for the rest of
fragments.
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/vmw_vsock/virtio_transport_common.c | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/net/vmw_vsock/virtio_transport_common.c b/net/vmw_vsock/virtio_transport_common.c index 23704a6bc437..f014ccfdd9c2 100644 --- a/net/vmw_vsock/virtio_transport_common.c +++ b/net/vmw_vsock/virtio_transport_common.c @@ -413,7 +413,6 @@ static int virtio_transport_seqpacket_do_dequeue(struct vsock_sock *vsk, struct virtio_vsock_pkt *pkt; int dequeued_len = 0; size_t user_buf_len = msg_data_left(msg); - bool copy_failed = false; bool msg_ready = false; spin_lock_bh(&vvs->rx_lock); @@ -426,7 +425,7 @@ static int virtio_transport_seqpacket_do_dequeue(struct vsock_sock *vsk, while (!msg_ready) { pkt = list_first_entry(&vvs->rx_queue, struct virtio_vsock_pkt, list); - if (!copy_failed) { + if (dequeued_len >= 0) { size_t pkt_len; size_t bytes_to_copy; @@ -443,11 +442,9 @@ static int virtio_transport_seqpacket_do_dequeue(struct vsock_sock *vsk, err = memcpy_to_msg(msg, pkt->buf, bytes_to_copy); if (err) { - /* Copy of message failed, set flag to skip - * copy path for rest of fragments. Rest of + /* Copy of message failed. Rest of * fragments will be freed without copy. */ - copy_failed = true; dequeued_len = err; } else { user_buf_len -= bytes_to_copy; |