gro: Name the GRO result enumeration type

This clarifies which return and parameter types are GRO result codes
and not RX result codes.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 23 insertions, 11 deletions

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index ffc3106cc037..6e777efe149e 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -348,13 +348,14 @@ enum
         NAPI_STATE_NPSVC,       /* Netpoll - don't dequeue from poll_list */
 };
 
-enum {
+enum gro_result {
         GRO_MERGED,
         GRO_MERGED_FREE,
         GRO_HELD,
         GRO_NORMAL,
         GRO_DROP,
 };
+typedef enum gro_result gro_result_t;
 
 extern void __napi_schedule(struct napi_struct *n);
 
@@ -1480,16 +1481,17 @@ extern int		netif_rx_ni(struct sk_buff *skb);
 #define HAVE_NETIF_RECEIVE_SKB 1
 extern int              netif_receive_skb(struct sk_buff *skb);
 extern void             napi_gro_flush(struct napi_struct *napi);
-extern int              dev_gro_receive(struct napi_struct *napi,
+extern gro_result_t     dev_gro_receive(struct napi_struct *napi,
                                         struct sk_buff *skb);
-extern int              napi_skb_finish(int ret, struct sk_buff *skb);
+extern int              napi_skb_finish(gro_result_t ret, struct sk_buff *skb);
 extern int              napi_gro_receive(struct napi_struct *napi,
                                          struct sk_buff *skb);
 extern void             napi_reuse_skb(struct napi_struct *napi,
                                        struct sk_buff *skb);
 extern struct sk_buff * napi_get_frags(struct napi_struct *napi);
 extern int              napi_frags_finish(struct napi_struct *napi,
-                                          struct sk_buff *skb, int ret);
+                                          struct sk_buff *skb,
+                                          gro_result_t ret);
 extern struct sk_buff * napi_frags_skb(struct napi_struct *napi);
 extern int              napi_gro_frags(struct napi_struct *napi);
 
diff --git a/net/8021q/vlan_core.c b/net/8021q/vlan_core.c
index 7f7de1a04de6..47a80d65c3b7 100644
--- a/net/8021q/vlan_core.c
+++ b/net/8021q/vlan_core.c
@@ -74,8 +74,9 @@ u16 vlan_dev_vlan_id(const struct net_device *dev)
 }
 EXPORT_SYMBOL(vlan_dev_vlan_id);
 
-static int vlan_gro_common(struct napi_struct *napi, struct vlan_group *grp,
-                           unsigned int vlan_tci, struct sk_buff *skb)
+static gro_result_t
+vlan_gro_common(struct napi_struct *napi, struct vlan_group *grp,
+                unsigned int vlan_tci, struct sk_buff *skb)
 {
         struct sk_buff *p;
 
diff --git a/net/core/dev.c b/net/core/dev.c
index 68a1bb68b5a8..1dc13744684c 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2476,7 +2476,7 @@ void napi_gro_flush(struct napi_struct *napi)
 }
 EXPORT_SYMBOL(napi_gro_flush);
 
-int dev_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
+enum gro_result dev_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
 {
         struct sk_buff **pp = NULL;
         struct packet_type *ptype;
@@ -2484,7 +2484,7 @@ int dev_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
         struct list_head *head = &ptype_base[ntohs(type) & PTYPE_HASH_MASK];
         int same_flow;
         int mac_len;
-        int ret;
+        enum gro_result ret;
 
         if (!(skb->dev->features & NETIF_F_GRO))
                 goto normal;
@@ -2568,7 +2568,8 @@ normal:
 }
 EXPORT_SYMBOL(dev_gro_receive);
 
-static int __napi_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
+static gro_result_t
+__napi_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
 {
         struct sk_buff *p;
 
@@ -2585,7 +2586,7 @@ static int __napi_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
         return dev_gro_receive(napi, skb);
 }
 
-int napi_skb_finish(int ret, struct sk_buff *skb)
+int napi_skb_finish(gro_result_t ret, struct sk_buff *skb)
 {
         int err = NET_RX_SUCCESS;
 
@@ -2600,6 +2601,10 @@ int napi_skb_finish(int ret, struct sk_buff *skb)
         case GRO_MERGED_FREE:
                 kfree_skb(skb);
                 break;
+
+        case GRO_HELD:
+        case GRO_MERGED:
+                break;
         }
 
         return err;
@@ -2652,7 +2657,8 @@ struct sk_buff *napi_get_frags(struct napi_struct *napi)
 }
 EXPORT_SYMBOL(napi_get_frags);
 
-int napi_frags_finish(struct napi_struct *napi, struct sk_buff *skb, int ret)
+int napi_frags_finish(struct napi_struct *napi, struct sk_buff *skb,
+                      gro_result_t ret)
 {
         int err = NET_RX_SUCCESS;
 
@@ -2674,6 +2680,9 @@ int napi_frags_finish(struct napi_struct *napi, struct sk_buff *skb, int ret)
         case GRO_MERGED_FREE:
                 napi_reuse_skb(napi, skb);
                 break;
+
+        case GRO_MERGED:
+                break;
         }
 
         return err;