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authorHaiyang Zhang <haiyangz@microsoft.com>2018-03-22 12:01:13 -0700
committerDavid S. Miller <davem@davemloft.net>2018-03-25 17:07:40 -0400
commit5c71dadbb45970a8f0544a27ae8f1cbd9750e516 (patch)
tree9508c9742c17828cd5ffeb058914d8e527657dc7 /drivers/net/hyperv
parent74b4bed972acf967a65d2aaf29c13b429c8cb927 (diff)
hv_netvsc: Fix the return status in RX path
As defined in hyperv_net.h, the NVSP_STAT_SUCCESS is one not zero. Some functions returns 0 when it actually means NVSP_STAT_SUCCESS. This patch fixes them. In netvsc_receive(), it puts the last RNDIS packet's receive status for all packets in a vmxferpage which may contain multiple RNDIS packets. This patch puts NVSP_STAT_FAIL in the receive completion if one of the packets in a vmxferpage fails. Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/hyperv')
-rw-r--r--drivers/net/hyperv/netvsc.c8
-rw-r--r--drivers/net/hyperv/netvsc_drv.c2
-rw-r--r--drivers/net/hyperv/rndis_filter.c4
3 files changed, 9 insertions, 5 deletions
diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c
index 4123d081b1c7..58bb2dcbc9f0 100644
--- a/drivers/net/hyperv/netvsc.c
+++ b/drivers/net/hyperv/netvsc.c
@@ -1098,12 +1098,16 @@ static int netvsc_receive(struct net_device *ndev,
void *data = recv_buf
+ vmxferpage_packet->ranges[i].byte_offset;
u32 buflen = vmxferpage_packet->ranges[i].byte_count;
+ int ret;
trace_rndis_recv(ndev, q_idx, data);
/* Pass it to the upper layer */
- status = rndis_filter_receive(ndev, net_device,
- channel, data, buflen);
+ ret = rndis_filter_receive(ndev, net_device,
+ channel, data, buflen);
+
+ if (unlikely(ret != NVSP_STAT_SUCCESS))
+ status = NVSP_STAT_FAIL;
}
enq_receive_complete(ndev, net_device, q_idx,
diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c
index f28c85d212ce..5d716750ae22 100644
--- a/drivers/net/hyperv/netvsc_drv.c
+++ b/drivers/net/hyperv/netvsc_drv.c
@@ -831,7 +831,7 @@ int netvsc_recv_callback(struct net_device *net,
u64_stats_update_end(&rx_stats->syncp);
napi_gro_receive(&nvchan->napi, skb);
- return 0;
+ return NVSP_STAT_SUCCESS;
}
static void netvsc_get_drvinfo(struct net_device *net,
diff --git a/drivers/net/hyperv/rndis_filter.c b/drivers/net/hyperv/rndis_filter.c
index 020f8bc54386..4a4952363e8a 100644
--- a/drivers/net/hyperv/rndis_filter.c
+++ b/drivers/net/hyperv/rndis_filter.c
@@ -437,10 +437,10 @@ int rndis_filter_receive(struct net_device *ndev,
"unhandled rndis message (type %u len %u)\n",
rndis_msg->ndis_msg_type,
rndis_msg->msg_len);
- break;
+ return NVSP_STAT_FAIL;
}
- return 0;
+ return NVSP_STAT_SUCCESS;
}
static int rndis_filter_query_device(struct rndis_device *dev,