net_dma: remove duplicate assignment in dma_skb_copy_datagram_iovec

No need to compute copy twice in the frags loop in
dma_skb_copy_datagram_iovec().

Signed-off-by: Brice Goglin <Brice.Goglin@inria.fr>
Acked-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/core/user_dma.c b/net/core/user_dma.c
index 0ad1cd57bc393b126e5cecbbb0f5638b34d73d97..c77aff9c6eb3cc76fab911cdca097cc5add01d8c 100644 (file)
--- a/net/core/user_dma.c
+++ b/net/core/user_dma.c
@@ -75,7 +75,7 @@ int dma_skb_copy_datagram_iovec(struct dma_chan *chan,
 
                end = start + skb_shinfo(skb)->frags[i].size;
                copy = end - offset;
-               if ((copy = end - offset) > 0) {
+               if (copy > 0) {
                        skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
                        struct page *page = frag->page;