Merge tag 'timers-core-2020-12-14' of git://git.kernel.org/pub/scm/linux/kernel/git...

[linux-2.6-microblaze.git] / net / packet / af_packet.c

diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index cefbd50..7a18fff 100644 (file)
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -93,8 +93,8 @@
 
 /*
    Assumptions:
-   - If the device has no dev->header_ops, there is no LL header visible
-     above the device. In this case, its hard_header_len should be 0.
+   - If the device has no dev->header_ops->create, there is no LL header
+     visible above the device. In this case, its hard_header_len should be 0.
      The device may prepend its own header internally. In this case, its
      needed_headroom should be set to the space needed for it to add its
      internal header.
@@ -108,26 +108,26 @@
 On receive:
 -----------
 
-Incoming, dev->header_ops != NULL
+Incoming, dev_has_header(dev) == true
    mac_header -> ll header
    data       -> data
 
-Outgoing, dev->header_ops != NULL
+Outgoing, dev_has_header(dev) == true
    mac_header -> ll header
    data       -> ll header
 
-Incoming, dev->header_ops == NULL
+Incoming, dev_has_header(dev) == false
    mac_header -> data
      However drivers often make it point to the ll header.
      This is incorrect because the ll header should be invisible to us.
    data       -> data
 
-Outgoing, dev->header_ops == NULL
+Outgoing, dev_has_header(dev) == false
    mac_header -> data. ll header is invisible to us.
    data       -> data
 
 Resume
-  If dev->header_ops == NULL we are unable to restore the ll header,
+  If dev_has_header(dev) == false we are unable to restore the ll header,
     because it is invisible to us.
 
 
@@ -2069,7 +2069,7 @@ static int packet_rcv(struct sk_buff *skb, struct net_device *dev,
 
        skb->dev = dev;
 
-       if (dev->header_ops) {
+       if (dev_has_header(dev)) {
                /* The device has an explicit notion of ll header,
                 * exported to higher levels.
                 *
@@ -2198,7 +2198,7 @@ static int tpacket_rcv(struct sk_buff *skb, struct net_device *dev,
        if (!net_eq(dev_net(dev), sock_net(sk)))
                goto drop;
 
-       if (dev->header_ops) {
+       if (dev_has_header(dev)) {
                if (sk->sk_type != SOCK_DGRAM)
                        skb_push(skb, skb->data - skb_mac_header(skb));
                else if (skb->pkt_type == PACKET_OUTGOING) {