gro: give 'hash' variable in dev_gro_receive() a less confusing name

'hash' stores not the flow hash, but the index of the GRO bucket
corresponding to it.
Change its name to 'bucket' to avoid confusion while reading lines
like '__set_bit(hash, &napi->gro_bitmask)'.

Signed-off-by: Alexander Lobakin <alobakin@pm.me>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/core/dev.c b/net/core/dev.c
index b635467087f3d2306ede93efbdbaaf2df05f8e0b..5a2847a19cf285e2621c333774ce4ba3134dc318 100644 (file)
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -5952,8 +5952,8 @@ static void gro_flush_oldest(struct napi_struct *napi, struct list_head *head)
 
 static enum gro_result dev_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
 {
-       u32 hash = skb_get_hash_raw(skb) & (GRO_HASH_BUCKETS - 1);
-       struct gro_list *gro_list = &napi->gro_hash[hash];
+       u32 bucket = skb_get_hash_raw(skb) & (GRO_HASH_BUCKETS - 1);
+       struct gro_list *gro_list = &napi->gro_hash[bucket];
        struct list_head *head = &offload_base;
        struct packet_offload *ptype;
        __be16 type = skb->protocol;
@@ -6047,10 +6047,10 @@ pull:
                gro_pull_from_frag0(skb, grow);
 ok:
        if (gro_list->count) {
-               if (!test_bit(hash, &napi->gro_bitmask))
-                       __set_bit(hash, &napi->gro_bitmask);
-       } else if (test_bit(hash, &napi->gro_bitmask)) {
-               __clear_bit(hash, &napi->gro_bitmask);
+               if (!test_bit(bucket, &napi->gro_bitmask))
+                       __set_bit(bucket, &napi->gro_bitmask);
+       } else if (test_bit(bucket, &napi->gro_bitmask)) {
+               __clear_bit(bucket, &napi->gro_bitmask);
        }
 
        return ret;