1 files changed, 22 insertions, 12 deletions

diff --git a/include/linux/mii.h b/include/linux/mii.h
index ad748588faf1..359fba880274 100644
--- a/include/linux/mii.h
+++ b/include/linux/mii.h
@@ -240,6 +240,22 @@ static inline unsigned int mii_duplex (unsigned int duplex_lock,
 }
 
 /**
+ * mii_advertise_flowctrl - get flow control advertisement flags
+ * @cap: Flow control capabilities (FLOW_CTRL_RX, FLOW_CTRL_TX or both)
+ */
+static inline u16 mii_advertise_flowctrl(int cap)
+{
+        u16 adv = 0;
+
+        if (cap & FLOW_CTRL_RX)
+                adv = ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
+        if (cap & FLOW_CTRL_TX)
+                adv ^= ADVERTISE_PAUSE_ASYM;
+
+        return adv;
+}
+
+/**
  * mii_resolve_flowctrl_fdx
  * @lcladv: value of MII ADVERTISE register
  * @rmtadv: value of MII LPA register
@@ -250,18 +266,12 @@ static inline u8 mii_resolve_flowctrl_fdx(u16 lcladv, u16 rmtadv)
 {
         u8 cap = 0;
 
-        if (lcladv & ADVERTISE_PAUSE_CAP) {
-                if (lcladv & ADVERTISE_PAUSE_ASYM) {
-                        if (rmtadv & LPA_PAUSE_CAP)
-                                cap = FLOW_CTRL_TX | FLOW_CTRL_RX;
-                        else if (rmtadv & LPA_PAUSE_ASYM)
-                                cap = FLOW_CTRL_RX;
-                } else {
-                        if (rmtadv & LPA_PAUSE_CAP)
-                                cap = FLOW_CTRL_TX | FLOW_CTRL_RX;
-                }
-        } else if (lcladv & ADVERTISE_PAUSE_ASYM) {
-                if ((rmtadv & LPA_PAUSE_CAP) && (rmtadv & LPA_PAUSE_ASYM))
+        if (lcladv & rmtadv & ADVERTISE_PAUSE_CAP) {
+                cap = FLOW_CTRL_TX | FLOW_CTRL_RX;
+        } else if (lcladv & rmtadv & ADVERTISE_PAUSE_ASYM) {
+                if (lcladv & ADVERTISE_PAUSE_CAP)
+                        cap = FLOW_CTRL_RX;
+                else if (rmtadv & ADVERTISE_PAUSE_CAP)
                         cap = FLOW_CTRL_TX;
         }