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-rw-r--r--drivers/net/usb/usbnet.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index 921c05bc73e3..a8d50dd93d12 100644
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -1013,6 +1013,13 @@ int usbnet_get_link_ksettings_internal(struct net_device *net,
else
cmd->base.speed = SPEED_UNKNOWN;
+ /* The standard "Universal Serial Bus Class Definitions
+ * for Communications Devices v1.2" does not specify
+ * anything about duplex status.
+ * So set it DUPLEX_UNKNOWN instead of default DUPLEX_HALF.
+ */
+ cmd->base.duplex = DUPLEX_UNKNOWN;
+
return 0;
}
EXPORT_SYMBOL_GPL(usbnet_get_link_ksettings_internal);