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-rw-r--r--drivers/net/usb/ax88179_178a.c2
-rw-r--r--drivers/net/usb/lan78xx.c2
-rw-r--r--drivers/net/usb/r8152.c67
-rw-r--r--drivers/net/usb/sr9800.c4
4 files changed, 53 insertions, 22 deletions
diff --git a/drivers/net/usb/ax88179_178a.c b/drivers/net/usb/ax88179_178a.c
index 5a1bf42ce1..d837c18874 100644
--- a/drivers/net/usb/ax88179_178a.c
+++ b/drivers/net/usb/ax88179_178a.c
@@ -1315,8 +1315,6 @@ static int ax88179_bind(struct usbnet *dev, struct usb_interface *intf)
netif_set_tso_max_size(dev->net, 16384);
- ax88179_reset(dev);
-
return 0;
}
diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c
index 59cde06aa7..5add4145d9 100644
--- a/drivers/net/usb/lan78xx.c
+++ b/drivers/net/usb/lan78xx.c
@@ -1758,7 +1758,7 @@ static void lan78xx_get_drvinfo(struct net_device *net,
{
struct lan78xx_net *dev = netdev_priv(net);
- strncpy(info->driver, DRIVER_NAME, sizeof(info->driver));
+ strscpy(info->driver, DRIVER_NAME, sizeof(info->driver));
usb_make_path(dev->udev, info->bus_info, sizeof(info->bus_info));
}
diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index 127b34dcc5..9bf2140fd0 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -2584,8 +2584,9 @@ static int rx_bottom(struct r8152 *tp, int budget)
while (urb->actual_length > len_used) {
struct net_device *netdev = tp->netdev;
struct net_device_stats *stats = &netdev->stats;
- unsigned int pkt_len, rx_frag_head_sz;
+ unsigned int pkt_len, rx_frag_head_sz, len;
struct sk_buff *skb;
+ bool use_frags;
WARN_ON_ONCE(skb_queue_len(&tp->rx_queue) >= 1000);
@@ -2598,45 +2599,77 @@ static int rx_bottom(struct r8152 *tp, int budget)
break;
pkt_len -= ETH_FCS_LEN;
+ len = pkt_len;
rx_data += sizeof(struct rx_desc);
- if (!agg_free || tp->rx_copybreak > pkt_len)
- rx_frag_head_sz = pkt_len;
+ if (!agg_free || tp->rx_copybreak > len)
+ use_frags = false;
else
- rx_frag_head_sz = tp->rx_copybreak;
+ use_frags = true;
+
+ if (use_frags) {
+ /* If the budget is exhausted, the packet
+ * would be queued in the driver. That is,
+ * napi_gro_frags() wouldn't be called, so
+ * we couldn't use napi_get_frags().
+ */
+ if (work_done >= budget) {
+ rx_frag_head_sz = tp->rx_copybreak;
+ skb = napi_alloc_skb(napi,
+ rx_frag_head_sz);
+ } else {
+ rx_frag_head_sz = 0;
+ skb = napi_get_frags(napi);
+ }
+ } else {
+ rx_frag_head_sz = 0;
+ skb = napi_alloc_skb(napi, len);
+ }
- skb = napi_alloc_skb(napi, rx_frag_head_sz);
if (!skb) {
stats->rx_dropped++;
goto find_next_rx;
}
skb->ip_summed = r8152_rx_csum(tp, rx_desc);
- memcpy(skb->data, rx_data, rx_frag_head_sz);
- skb_put(skb, rx_frag_head_sz);
- pkt_len -= rx_frag_head_sz;
- rx_data += rx_frag_head_sz;
- if (pkt_len) {
+ rtl_rx_vlan_tag(rx_desc, skb);
+
+ if (use_frags) {
+ if (rx_frag_head_sz) {
+ memcpy(skb->data, rx_data,
+ rx_frag_head_sz);
+ skb_put(skb, rx_frag_head_sz);
+ len -= rx_frag_head_sz;
+ rx_data += rx_frag_head_sz;
+ skb->protocol = eth_type_trans(skb,
+ netdev);
+ }
+
skb_add_rx_frag(skb, 0, agg->page,
agg_offset(agg, rx_data),
- pkt_len,
- SKB_DATA_ALIGN(pkt_len));
+ len, SKB_DATA_ALIGN(len));
get_page(agg->page);
+ } else {
+ memcpy(skb->data, rx_data, len);
+ skb_put(skb, len);
+ skb->protocol = eth_type_trans(skb, netdev);
}
- skb->protocol = eth_type_trans(skb, netdev);
- rtl_rx_vlan_tag(rx_desc, skb);
if (work_done < budget) {
+ if (use_frags)
+ napi_gro_frags(napi);
+ else
+ napi_gro_receive(napi, skb);
+
work_done++;
stats->rx_packets++;
- stats->rx_bytes += skb->len;
- napi_gro_receive(napi, skb);
+ stats->rx_bytes += pkt_len;
} else {
__skb_queue_tail(&tp->rx_queue, skb);
}
find_next_rx:
- rx_data = rx_agg_align(rx_data + pkt_len + ETH_FCS_LEN);
+ rx_data = rx_agg_align(rx_data + len + ETH_FCS_LEN);
rx_desc = (struct rx_desc *)rx_data;
len_used = agg_offset(agg, rx_data);
len_used += sizeof(struct rx_desc);
diff --git a/drivers/net/usb/sr9800.c b/drivers/net/usb/sr9800.c
index f5e19f3ef6..143bd4ab16 100644
--- a/drivers/net/usb/sr9800.c
+++ b/drivers/net/usb/sr9800.c
@@ -474,8 +474,8 @@ static void sr_get_drvinfo(struct net_device *net,
{
/* Inherit standard device info */
usbnet_get_drvinfo(net, info);
- strncpy(info->driver, DRIVER_NAME, sizeof(info->driver));
- strncpy(info->version, DRIVER_VERSION, sizeof(info->version));
+ strscpy(info->driver, DRIVER_NAME, sizeof(info->driver));
+ strscpy(info->version, DRIVER_VERSION, sizeof(info->version));
}
static u32 sr_get_link(struct net_device *net)