jme: Add comment in jme_set_settings

Explains what `fdc` variable is for.

Signed-off-by: Guo-Fu Tseng <cooldavid@cooldavid.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 6 insertions, 3 deletions

diff --git a/drivers/net/jme.c b/drivers/net/jme.c
index e04f180965a..0ea0da32d7d 100644
--- a/drivers/net/jme.c
+++ b/drivers/net/jme.c
@@ -2394,6 +2394,10 @@ jme_set_settings(struct net_device *netdev,
         if (ecmd->speed == SPEED_1000 && ecmd->autoneg != AUTONEG_ENABLE)
                 return -EINVAL;
 
+        /*
+         * Check If user changed duplex only while force_media.
+         * Hardware would not generate link change interrupt.
+         */
         if (jme->mii_if.force_media &&
         ecmd->autoneg != AUTONEG_ENABLE &&
         (jme->mii_if.full_duplex != ecmd->duplex))
@@ -2403,10 +2407,9 @@ jme_set_settings(struct net_device *netdev,
         rc = mii_ethtool_sset(&(jme->mii_if), ecmd);
         spin_unlock_bh(&jme->phy_lock);
 
-        if (!rc && fdc)
-                jme_reset_link(jme);
-
         if (!rc) {
+                if (fdc)
+                        jme_reset_link(jme);
                 set_bit(JME_FLAG_SSET, &jme->flags);
                 jme->old_ecmd = *ecmd;
         }