NFC: hci: Change event_received handler gate parameter to pipe

Several pipes may point to the same CLF gate, so getting the gate ID
as an input is not enough.
For example dual secure element may have 2 pipes (1 for uicc and
1 for eSE) pointing to the connectivity gate.

As resolving gate and host IDs can be done from a pipe, we now pass
the pipe ID to the event received handler.
Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

include/net/nfc/hci.h

@@ -51,7 +51,7 @@ struct nfc_hci_ops {
 	int (*tm_send)(struct nfc_hci_dev *hdev, struct sk_buff *skb);
 	int (*check_presence)(struct nfc_hci_dev *hdev,
 			      struct nfc_target *target);
-	int (*event_received)(struct nfc_hci_dev *hdev, u8 gate, u8 event,
+	int (*event_received)(struct nfc_hci_dev *hdev, u8 pipe, u8 event,
 			      struct sk_buff *skb);
 	int (*fw_download)(struct nfc_hci_dev *hdev, const char *firmware_name);
 	int (*discover_se)(struct nfc_hci_dev *dev);

net/nfc/hci/core.c

@@ -338,7 +338,7 @@ void nfc_hci_event_received(struct nfc_hci_dev *hdev, u8 pipe, u8 event,
 	}
 
 	if (hdev->ops->event_received) {
-		r = hdev->ops->event_received(hdev, gate, event, skb);
+		r = hdev->ops->event_received(hdev, pipe, event, skb);
 		if (r <= 0)
 			goto exit_noskb;
 	}