Commit b85e06f7 authored by Stephen Hemminger's avatar Stephen Hemminger Committed by David S. Miller

hv_netvsc: replace divide with mask when computing padding

Packet alignment is always a power of 2 therefore modulus can
be replaced with a faster and operation
Signed-off-by: default avatarStephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 200a5699
......@@ -712,11 +712,12 @@ static u32 netvsc_copy_to_send_buf(struct netvsc_device *net_device,
int i;
u32 msg_size = 0;
u32 padding = 0;
u32 remain = packet->total_data_buflen % net_device->pkt_align;
u32 page_count = packet->cp_partial ? packet->rmsg_pgcnt :
packet->page_buf_cnt;
u32 remain;
/* Add padding */
remain = packet->total_data_buflen & (net_device->pkt_align - 1);
if (skb->xmit_more && remain && !packet->cp_partial) {
padding = net_device->pkt_align - remain;
rndis_msg->msg_len += padding;
......
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