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authorDavid Miller <davem@davemloft.net>2018-06-24 14:13:49 +0900
committerDavid S. Miller <davem@davemloft.net>2018-06-26 11:33:04 +0900
commitd4546c2509b1e9cd082e3682dcec98472e37ee5a (patch)
treeeb7393380a20d8ccaf8f94204fe2c15d2639a780 /net/ethernet
parent9ff3b40e411c00870d1c29cd6b843fca7c4160ae (diff)
downloadlinux-stericsson-d4546c2509b1e9cd082e3682dcec98472e37ee5a.tar.gz
net: Convert GRO SKB handling to list_head.
Manage pending per-NAPI GRO packets via list_head. Return an SKB pointer from the GRO receive handlers. When GRO receive handlers return non-NULL, it means that this SKB needs to be completed at this time and removed from the NAPI queue. Several operations are greatly simplified by this transformation, especially timing out the oldest SKB in the list when gro_count exceeds MAX_GRO_SKBS, and napi_gro_flush() which walks the queue in reverse order. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ethernet')
-rw-r--r--net/ethernet/eth.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/net/ethernet/eth.c b/net/ethernet/eth.c
index ee28440f57c5..fd8faa0dfa61 100644
--- a/net/ethernet/eth.c
+++ b/net/ethernet/eth.c
@@ -427,13 +427,13 @@ ssize_t sysfs_format_mac(char *buf, const unsigned char *addr, int len)
}
EXPORT_SYMBOL(sysfs_format_mac);
-struct sk_buff **eth_gro_receive(struct sk_buff **head,
- struct sk_buff *skb)
+struct sk_buff *eth_gro_receive(struct list_head *head, struct sk_buff *skb)
{
- struct sk_buff *p, **pp = NULL;
- struct ethhdr *eh, *eh2;
- unsigned int hlen, off_eth;
const struct packet_offload *ptype;
+ unsigned int hlen, off_eth;
+ struct sk_buff *pp = NULL;
+ struct ethhdr *eh, *eh2;
+ struct sk_buff *p;
__be16 type;
int flush = 1;
@@ -448,7 +448,7 @@ struct sk_buff **eth_gro_receive(struct sk_buff **head,
flush = 0;
- for (p = *head; p; p = p->next) {
+ list_for_each_entry(p, head, list) {
if (!NAPI_GRO_CB(p)->same_flow)
continue;