linux-kernel - [PATCH net-next V2 15/17] hv_netvsc: Eliminate xmit_more from struct hv_netvsc

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1448742045-22732-15-git-send-email-kys@microsoft.com>
Date:	Sat, 28 Nov 2015 12:20:43 -0800
From:	"K. Y. Srinivasan" <kys@...rosoft.com>
To:	davem@...emloft.net, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, devel@...uxdriverproject.org,
	olaf@...fle.de, apw@...onical.com, jasowang@...hat.com
Cc:	"K. Y. Srinivasan" <kys@...rosoft.com>
Subject: [PATCH net-next V2 15/17] hv_netvsc: Eliminate xmit_more from struct hv_netvsc_packet

Eliminate xmit_more from struct hv_netvsc_packet.

Signed-off-by: K. Y. Srinivasan <kys@...rosoft.com>
---
 drivers/net/hyperv/hyperv_net.h   |    1 -
 drivers/net/hyperv/netvsc.c       |   13 ++++++++-----
 drivers/net/hyperv/netvsc_drv.c   |    1 -
 drivers/net/hyperv/rndis_filter.c |    2 --
 4 files changed, 8 insertions(+), 9 deletions(-)

diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h
index ddf51a0..96d34e2 100644
--- a/drivers/net/hyperv/hyperv_net.h
+++ b/drivers/net/hyperv/hyperv_net.h
@@ -131,7 +131,6 @@ struct ndis_tcp_ip_checksum_info;
 struct hv_netvsc_packet {
 	/* Bookkeeping stuff */
 	u8 status;
-	u8 xmit_more; /* from skb */
 	u8 cp_partial; /* partial copy into send buffer */
 
 	u8 rmsg_size; /* RNDIS header and PPI size */
diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c
index 11b009e..cd5b65e 100644
--- a/drivers/net/hyperv/netvsc.c
+++ b/drivers/net/hyperv/netvsc.c
@@ -712,6 +712,7 @@ static u32 netvsc_copy_to_send_buf(struct netvsc_device *net_device,
 		     + pend_size;
 	int i;
 	bool is_data_pkt = (skb != NULL) ? true : false;
+	bool xmit_more = (skb != NULL) ? skb->xmit_more : false;
 	u32 msg_size = 0;
 	u32 padding = 0;
 	u32 remain = packet->total_data_buflen % net_device->pkt_align;
@@ -719,7 +720,7 @@ static u32 netvsc_copy_to_send_buf(struct netvsc_device *net_device,
 		packet->page_buf_cnt;
 
 	/* Add padding */
-	if (is_data_pkt && packet->xmit_more && remain &&
+	if (is_data_pkt && xmit_more && remain &&
 	    !packet->cp_partial) {
 		padding = net_device->pkt_align - remain;
 		rndis_msg->msg_len += padding;
@@ -758,6 +759,7 @@ static inline int netvsc_send_pkt(
 	int ret;
 	struct hv_page_buffer *pgbuf;
 	u32 ring_avail = hv_ringbuf_avail_percent(&out_channel->outbound);
+	bool xmit_more = (skb != NULL) ? skb->xmit_more : false;
 
 	nvmsg.hdr.msg_type = NVSP_MSG1_TYPE_SEND_RNDIS_PKT;
 	if (skb != NULL) {
@@ -789,7 +791,7 @@ static inline int netvsc_send_pkt(
 	 * unnecessarily.
 	 */
 	if (ring_avail < (RING_AVAIL_PERCENT_LOWATER + 1))
-		packet->xmit_more = false;
+		xmit_more = false;
 
 	if (packet->page_buf_cnt) {
 		pgbuf = packet->cp_partial ? (*pb) +
@@ -801,14 +803,14 @@ static inline int netvsc_send_pkt(
 						      sizeof(struct nvsp_message),
 						      req_id,
 						      VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED,
-						      !packet->xmit_more);
+						      !xmit_more);
 	} else {
 		ret = vmbus_sendpacket_ctl(out_channel, &nvmsg,
 					   sizeof(struct nvsp_message),
 					   req_id,
 					   VM_PKT_DATA_INBAND,
 					   VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED,
-					   !packet->xmit_more);
+					   !xmit_more);
 	}
 
 	if (ret == 0) {
@@ -854,6 +856,7 @@ int netvsc_send(struct hv_device *device,
 	struct multi_send_data *msdp;
 	struct hv_netvsc_packet *msd_send = NULL, *cur_send = NULL;
 	bool try_batch;
+	bool xmit_more = (skb != NULL) ? skb->xmit_more : false;
 
 	net_device = get_outbound_net_device(device);
 	if (!net_device)
@@ -911,7 +914,7 @@ int netvsc_send(struct hv_device *device,
 		if (msdp->pkt)
 			dev_kfree_skb_any(skb);
 
-		if (packet->xmit_more && !packet->cp_partial) {
+		if (xmit_more && !packet->cp_partial) {
 			msdp->pkt = packet;
 			msdp->count++;
 		} else {
diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c
index bc4be1d..7520c52 100644
--- a/drivers/net/hyperv/netvsc_drv.c
+++ b/drivers/net/hyperv/netvsc_drv.c
@@ -471,7 +471,6 @@ check_size:
 	packet = (struct hv_netvsc_packet *)skb->cb;
 
 	packet->status = 0;
-	packet->xmit_more = skb->xmit_more;
 
 	packet->vlan_tci = skb->vlan_tci;
 
diff --git a/drivers/net/hyperv/rndis_filter.c b/drivers/net/hyperv/rndis_filter.c
index 6ba5adf..3c06aa7 100644
--- a/drivers/net/hyperv/rndis_filter.c
+++ b/drivers/net/hyperv/rndis_filter.c
@@ -236,8 +236,6 @@ static int rndis_filter_send_request(struct rndis_device *dev,
 			pb[0].len;
 	}
 
-	packet->xmit_more = false;
-
 	ret = netvsc_send(dev->net_dev->dev, packet, NULL, &pb, NULL);
 	return ret;
 }
-- 
1.7.4.1

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/