hv_netvsc: Eliminate rndis_msg pointer from hv_netvsc_packet structure

Eliminate rndis_msg pointer from hv_netvsc_packet structure.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h
index 6bb1acd..14deedd 100644 (file)
--- a/drivers/net/hyperv/hyperv_net.h
+++ b/drivers/net/hyperv/hyperv_net.h
@@ -149,10 +149,6 @@ struct hv_netvsc_packet {
        void *send_completion_ctx;
        void (*send_completion)(void *context);
 
-
-       /* This points to the memory after page_buf */
-       struct rndis_message *rndis_msg;
-
        /* Points to the send/receive buffer where the ethernet frame is */
        void *data;
        struct hv_page_buffer *page_buf;
@@ -188,10 +184,12 @@ struct rndis_device {
 
 
 /* Interface */
+struct rndis_message;
 int netvsc_device_add(struct hv_device *device, void *additional_info);
 int netvsc_device_remove(struct hv_device *device);
 int netvsc_send(struct hv_device *device,
-               struct hv_netvsc_packet *packet);
+               struct hv_netvsc_packet *packet,
+               struct rndis_message *rndis_msg);
 void netvsc_linkstatus_callback(struct hv_device *device_obj,
                                struct rndis_message *resp);
 void netvsc_xmit_completion(void *context);

diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c
index 52533ed..2de9e7f 100644 (file)
--- a/drivers/net/hyperv/netvsc.c
+++ b/drivers/net/hyperv/netvsc.c
@@ -706,7 +706,8 @@ static u32 netvsc_get_next_send_section(struct netvsc_device *net_device)
 static u32 netvsc_copy_to_send_buf(struct netvsc_device *net_device,
                                   unsigned int section_index,
                                   u32 pend_size,
-                                  struct hv_netvsc_packet *packet)
+                                  struct hv_netvsc_packet *packet,
+                                  struct rndis_message *rndis_msg)
 {
        char *start = net_device->send_buf;
        char *dest = start + (section_index * net_device->send_section_size)
@@ -722,7 +723,7 @@ static u32 netvsc_copy_to_send_buf(struct netvsc_device *net_device,
        if (packet->is_data_pkt && packet->xmit_more && remain &&
            !packet->cp_partial) {
                padding = net_device->pkt_align - remain;
-               packet->rndis_msg->msg_len += padding;
+               rndis_msg->msg_len += padding;
                packet->total_data_buflen += padding;
        }
 
@@ -841,7 +842,8 @@ static inline int netvsc_send_pkt(
 }
 
 int netvsc_send(struct hv_device *device,
-               struct hv_netvsc_packet *packet)
+               struct hv_netvsc_packet *packet,
+               struct rndis_message *rndis_msg)
 {
        struct netvsc_device *net_device;
        int ret = 0, m_ret = 0;
@@ -897,7 +899,7 @@ int netvsc_send(struct hv_device *device,
        if (section_index != NETVSC_INVALID_INDEX) {
                netvsc_copy_to_send_buf(net_device,
                                        section_index, msd_len,
-                                       packet);
+                                       packet, rndis_msg);
 
                packet->send_buf_index = section_index;
 

diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c
index c8f294e..e5f81c7 100644 (file)
--- a/drivers/net/hyperv/netvsc_drv.c
+++ b/drivers/net/hyperv/netvsc_drv.c
@@ -483,10 +483,10 @@ check_size:
        packet->is_data_pkt = true;
        packet->total_data_buflen = skb->len;
 
-       packet->rndis_msg = (struct rndis_message *)((unsigned long)packet +
+       rndis_msg = (struct rndis_message *)((unsigned long)packet +
                                sizeof(struct hv_netvsc_packet));
 
-       memset(packet->rndis_msg, 0, RNDIS_AND_PPI_SIZE);
+       memset(rndis_msg, 0, RNDIS_AND_PPI_SIZE);
 
        /* Set the completion routine */
        packet->send_completion = netvsc_xmit_completion;
@@ -496,7 +496,6 @@ check_size:
        isvlan = packet->vlan_tci & VLAN_TAG_PRESENT;
 
        /* Add the rndis header */
-       rndis_msg = packet->rndis_msg;
        rndis_msg->ndis_msg_type = RNDIS_MSG_PACKET;
        rndis_msg->msg_len = packet->total_data_buflen;
        rndis_pkt = &rndis_msg->msg.pkt;
@@ -620,7 +619,7 @@ do_send:
        packet->page_buf_cnt = init_page_array(rndis_msg, rndis_msg_size,
                                               skb, packet);
 
-       ret = netvsc_send(net_device_ctx->device_ctx, packet);
+       ret = netvsc_send(net_device_ctx->device_ctx, packet, rndis_msg);
 
 drop:
        if (ret == 0) {

diff --git a/drivers/net/hyperv/rndis_filter.c b/drivers/net/hyperv/rndis_filter.c
index 1b04d78..63584e7 100644 (file)
--- a/drivers/net/hyperv/rndis_filter.c
+++ b/drivers/net/hyperv/rndis_filter.c
@@ -240,7 +240,7 @@ static int rndis_filter_send_request(struct rndis_device *dev,
        packet->send_completion = NULL;
        packet->xmit_more = false;
 
-       ret = netvsc_send(dev->net_dev->dev, packet);
+       ret = netvsc_send(dev->net_dev->dev, packet, NULL);
        return ret;
 }