1 files changed, 12 insertions, 0 deletions

diff --git a/include/linux/phy.h b/include/linux/phy.h
index e5fb1d415961..962387a192f1 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -330,6 +330,7 @@ struct phy_c45_device_ids {
  * c45_ids: 802.3-c45 Device Identifers if is_c45.
  * is_c45:  Set to true if this phy uses clause 45 addressing.
  * is_internal: Set to true if this phy is internal to a MAC.
+ * is_pseudo_fixed_link: Set to true if this phy is an Ethernet switch, etc.
  * has_fixups: Set to true if this phy has fixups/quirks.
  * suspended: Set to true if this phy has been suspended successfully.
  * state: state of the PHY for management purposes
@@ -368,6 +369,7 @@ struct phy_device {
         struct phy_c45_device_ids c45_ids;
         bool is_c45;
         bool is_internal;
+        bool is_pseudo_fixed_link;
         bool has_fixups;
         bool suspended;
 
@@ -688,6 +690,16 @@ static inline bool phy_interface_is_rgmii(struct phy_device *phydev)
 {
         return phydev->interface >= PHY_INTERFACE_MODE_RGMII &&
                 phydev->interface <= PHY_INTERFACE_MODE_RGMII_TXID;
+};
+
+/*
+ * phy_is_pseudo_fixed_link - Convenience function for testing if this
+ * PHY is the CPU port facing side of an Ethernet switch, or similar.
+ * @phydev: the phy_device struct
+ */
+static inline bool phy_is_pseudo_fixed_link(struct phy_device *phydev)
+{
+        return phydev->is_pseudo_fixed_link;
 }
 
 /**