From c4b20c6370aa5cdbe11536125d86f31378d4b702 Mon Sep 17 00:00:00 2001 From: KY Srinivasan Date: Tue, 1 Dec 2015 16:43:07 -0800 Subject: [PATCH] hv_netvsc: Eliminatte the data field from struct hv_netvsc_packet Eliminatte the data field from struct hv_netvsc_packet. Signed-off-by: K. Y. Srinivasan Reviewed-by: Haiyang Zhang Signed-off-by: David S. Miller --- drivers/net/hyperv/hyperv_net.h | 5 ++--- drivers/net/hyperv/netvsc.c | 5 +++-- drivers/net/hyperv/netvsc_drv.c | 3 ++- drivers/net/hyperv/rndis_filter.c | 11 +++++++---- 4 files changed, 14 insertions(+), 10 deletions(-) diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h index 14deedd1b411..62542081a864 100644 --- a/drivers/net/hyperv/hyperv_net.h +++ b/drivers/net/hyperv/hyperv_net.h @@ -148,9 +148,6 @@ struct hv_netvsc_packet { u64 send_completion_tid; void *send_completion_ctx; void (*send_completion)(void *context); - - /* Points to the send/receive buffer where the ethernet frame is */ - void *data; struct hv_page_buffer *page_buf; }; @@ -195,6 +192,7 @@ void netvsc_linkstatus_callback(struct hv_device *device_obj, void netvsc_xmit_completion(void *context); int netvsc_recv_callback(struct hv_device *device_obj, struct hv_netvsc_packet *packet, + void **data, struct ndis_tcp_ip_checksum_info *csum_info, struct vmbus_channel *channel); void netvsc_channel_cb(void *context); @@ -205,6 +203,7 @@ int rndis_filter_device_add(struct hv_device *dev, void rndis_filter_device_remove(struct hv_device *dev); int rndis_filter_receive(struct hv_device *dev, struct hv_netvsc_packet *pkt, + void **data, struct vmbus_channel *channel); int rndis_filter_set_packet_filter(struct rndis_device *dev, u32 new_filter); diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c index 2de9e7fb4f68..8fbf81626bc3 100644 --- a/drivers/net/hyperv/netvsc.c +++ b/drivers/net/hyperv/netvsc.c @@ -1008,6 +1008,7 @@ static void netvsc_receive(struct netvsc_device *net_device, int i; int count = 0; struct net_device *ndev; + void *data; ndev = net_device->ndev; @@ -1047,13 +1048,13 @@ static void netvsc_receive(struct netvsc_device *net_device, for (i = 0; i < count; i++) { /* Initialize the netvsc packet */ netvsc_packet->status = NVSP_STAT_SUCCESS; - netvsc_packet->data = (void *)((unsigned long)net_device-> + data = (void *)((unsigned long)net_device-> recv_buf + vmxferpage_packet->ranges[i].byte_offset); netvsc_packet->total_data_buflen = vmxferpage_packet->ranges[i].byte_count; /* Pass it to the upper layer */ - rndis_filter_receive(device, netvsc_packet, channel); + rndis_filter_receive(device, netvsc_packet, &data, channel); if (netvsc_packet->status != NVSP_STAT_SUCCESS) status = NVSP_STAT_FAIL; diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c index e5f81c797e26..622e62e32636 100644 --- a/drivers/net/hyperv/netvsc_drv.c +++ b/drivers/net/hyperv/netvsc_drv.c @@ -682,6 +682,7 @@ void netvsc_linkstatus_callback(struct hv_device *device_obj, */ int netvsc_recv_callback(struct hv_device *device_obj, struct hv_netvsc_packet *packet, + void **data, struct ndis_tcp_ip_checksum_info *csum_info, struct vmbus_channel *channel) { @@ -710,7 +711,7 @@ int netvsc_recv_callback(struct hv_device *device_obj, * Copy to skb. This copy is needed here since the memory pointed by * hv_netvsc_packet cannot be deallocated */ - memcpy(skb_put(skb, packet->total_data_buflen), packet->data, + memcpy(skb_put(skb, packet->total_data_buflen), *data, packet->total_data_buflen); skb->protocol = eth_type_trans(skb, net); diff --git a/drivers/net/hyperv/rndis_filter.c b/drivers/net/hyperv/rndis_filter.c index 63584e7a49e3..be0fa9c94f63 100644 --- a/drivers/net/hyperv/rndis_filter.c +++ b/drivers/net/hyperv/rndis_filter.c @@ -351,6 +351,7 @@ static inline void *rndis_get_ppi(struct rndis_packet *rpkt, u32 type) static void rndis_filter_receive_data(struct rndis_device *dev, struct rndis_message *msg, struct hv_netvsc_packet *pkt, + void **data, struct vmbus_channel *channel) { struct rndis_packet *rndis_pkt; @@ -383,7 +384,7 @@ static void rndis_filter_receive_data(struct rndis_device *dev, * the data packet to the stack, without the rndis trailer padding */ pkt->total_data_buflen = rndis_pkt->data_len; - pkt->data = (void *)((unsigned long)pkt->data + data_offset); + *data = (void *)((unsigned long)(*data) + data_offset); vlan = rndis_get_ppi(rndis_pkt, IEEE_8021Q_INFO); if (vlan) { @@ -394,11 +395,12 @@ static void rndis_filter_receive_data(struct rndis_device *dev, } csum_info = rndis_get_ppi(rndis_pkt, TCPIP_CHKSUM_PKTINFO); - netvsc_recv_callback(dev->net_dev->dev, pkt, csum_info, channel); + netvsc_recv_callback(dev->net_dev->dev, pkt, data, csum_info, channel); } int rndis_filter_receive(struct hv_device *dev, struct hv_netvsc_packet *pkt, + void **data, struct vmbus_channel *channel) { struct netvsc_device *net_dev = hv_get_drvdata(dev); @@ -430,7 +432,7 @@ int rndis_filter_receive(struct hv_device *dev, goto exit; } - rndis_msg = pkt->data; + rndis_msg = *data; if (netif_msg_rx_err(net_dev->nd_ctx)) dump_rndis_message(dev, rndis_msg); @@ -438,7 +440,8 @@ int rndis_filter_receive(struct hv_device *dev, switch (rndis_msg->ndis_msg_type) { case RNDIS_MSG_PACKET: /* data msg */ - rndis_filter_receive_data(rndis_dev, rndis_msg, pkt, channel); + rndis_filter_receive_data(rndis_dev, rndis_msg, pkt, + data, channel); break; case RNDIS_MSG_INIT_C: -- 2.34.1