[NETFILTER]: nfnetlink_queue: eliminate impossible switch case

We don't need a default case in nfqnl_build_packet_message(), the
copy_mode is validated when it is set. Tell the compiler about
the possible types and remove the default case. Saves 80b of
text on x86_64.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 6 deletions

diff --git a/net/netfilter/nfnetlink_queue.c b/net/netfilter/nfnetlink_queue.c
index 436b442d4edc..abd5ff9b89a7 100644
--- a/net/netfilter/nfnetlink_queue.c
+++ b/net/netfilter/nfnetlink_queue.c
@@ -232,7 +232,7 @@ nfqnl_build_packet_message(struct nfqnl_instance *queue,
 
         spin_lock_bh(&queue->lock);
 
-        switch (queue->copy_mode) {
+        switch ((enum nfqnl_config_mode)queue->copy_mode) {
         case NFQNL_COPY_META:
         case NFQNL_COPY_NONE:
                 data_len = 0;
@@ -253,11 +253,6 @@ nfqnl_build_packet_message(struct nfqnl_instance *queue,
 
                 size += nla_total_size(data_len);
                 break;
-
-        default:
-                *errp = -EINVAL;
-                spin_unlock_bh(&queue->lock);
-                return NULL;
         }
 
         entry->id = queue->id_sequence++;