net: s390: convert to hw_features

options.large_send was easy to get rid of. options.checksum_type has deeper
roots so is left for later cleanup.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 19 insertions, 16 deletions

diff --git a/drivers/s390/net/qeth_l3_sys.c b/drivers/s390/net/qeth_l3_sys.c
index 67cfa68dcf1b..bf9f003e3a97 100644
--- a/drivers/s390/net/qeth_l3_sys.c
+++ b/drivers/s390/net/qeth_l3_sys.c
@@ -410,39 +410,42 @@ static ssize_t qeth_l3_dev_large_send_show(struct device *dev,
         if (!card)
                 return -EINVAL;
 
-        switch (card->options.large_send) {
-        case QETH_LARGE_SEND_NO:
+        if (!(card->dev->features & NETIF_F_TSO))
                 return sprintf(buf, "%s\n", "no");
-        case QETH_LARGE_SEND_TSO:
+        else
                 return sprintf(buf, "%s\n", "TSO");
-        default:
-                return sprintf(buf, "%s\n", "N/A");
-        }
 }
 
 static ssize_t qeth_l3_dev_large_send_store(struct device *dev,
                 struct device_attribute *attr, const char *buf, size_t count)
 {
-        struct qeth_card *card = dev_get_drvdata(dev);
-        enum qeth_large_send_types type;
-        int rc = 0;
+        struct qeth_card *card;
         char *tmp;
+        int enable;
 
         if (!card)
                 return -EINVAL;
         tmp = strsep((char **) &buf, "\n");
         if (!strcmp(tmp, "no"))
-                type = QETH_LARGE_SEND_NO;
+                enable = 0;
         else if (!strcmp(tmp, "TSO"))
-                type = QETH_LARGE_SEND_TSO;
+                enable = 1;
         else
                 return -EINVAL;
 
-        mutex_lock(&card->conf_mutex);
-        if (card->options.large_send != type)
-                rc = qeth_l3_set_large_send(card, type);
-        mutex_unlock(&card->conf_mutex);
-        return rc ? rc : count;
+        rtnl_lock();
+
+        card = dev_get_drvdata(dev);
+
+        if (enable)
+                card->dev->wanted_features |= NETIF_F_TSO;
+        else
+                card->dev->wanted_features &= ~NETIF_F_TSO;
+        netdev_update_features(card->dev);
+
+        rtnl_unlock();
+
+        return count;
 }
 
 static DEVICE_ATTR(large_send, 0644, qeth_l3_dev_large_send_show,