virtio_net: Update driver to use ethtool_sprintf

Update the code to replace instances of snprintf and a pointer update with
just calling ethtool_sprintf.

Also replace the char pointer with a u8 pointer to avoid having to recast
the pointer type.

Acked-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Alexander Duyck <alexanderduyck@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index e97288d..77ba8e2 100644 (file)
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -2138,25 +2138,21 @@ static int virtnet_set_channels(struct net_device *dev,
 static void virtnet_get_strings(struct net_device *dev, u32 stringset, u8 *data)
 {
        struct virtnet_info *vi = netdev_priv(dev);
-       char *p = (char *)data;
        unsigned int i, j;
+       u8 *p = data;
 
        switch (stringset) {
        case ETH_SS_STATS:
                for (i = 0; i < vi->curr_queue_pairs; i++) {
-                       for (j = 0; j < VIRTNET_RQ_STATS_LEN; j++) {
-                               snprintf(p, ETH_GSTRING_LEN, "rx_queue_%u_%s",
-                                        i, virtnet_rq_stats_desc[j].desc);
-                               p += ETH_GSTRING_LEN;
-                       }
+                       for (j = 0; j < VIRTNET_RQ_STATS_LEN; j++)
+                               ethtool_sprintf(&p, "rx_queue_%u_%s", i,
+                                               virtnet_rq_stats_desc[j].desc);
                }
 
                for (i = 0; i < vi->curr_queue_pairs; i++) {
-                       for (j = 0; j < VIRTNET_SQ_STATS_LEN; j++) {
-                               snprintf(p, ETH_GSTRING_LEN, "tx_queue_%u_%s",
-                                        i, virtnet_sq_stats_desc[j].desc);
-                               p += ETH_GSTRING_LEN;
-                       }
+                       for (j = 0; j < VIRTNET_SQ_STATS_LEN; j++)
+                               ethtool_sprintf(&p, "tx_queue_%u_%s", i,
+                                               virtnet_sq_stats_desc[j].desc);
                }
                break;
        }