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 b635467..5a2847a 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;