Bluetooth: btintel_pcie: Do not generate coredump for diagnostic events

All Intel diagnostic events are part of HCI traces and there is no need
to generate coredump for the same.

Signed-off-by: Kiran K <[e-mail]>
Signed-off-by: Luiz Augusto von Dentz <[e-mail]>

drivers/bluetooth/btintel.c

···
 }
 EXPORT_SYMBOL_GPL(btintel_configure_setup);
 
-int btintel_diagnostics(struct hci_dev *hdev, struct sk_buff *skb)
+static int btintel_diagnostics(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct intel_tlv *tlv = (void *)&skb->data[5];
 
···
 recv_frame:
 	return hci_recv_frame(hdev, skb);
 }
-EXPORT_SYMBOL_GPL(btintel_diagnostics);
 
 int btintel_recv_event(struct hci_dev *hdev, struct sk_buff *skb)
 {

drivers/bluetooth/btintel.h

···
 int btintel_shutdown_combined(struct hci_dev *hdev);
 void btintel_hw_error(struct hci_dev *hdev, u8 code);
 void btintel_print_fseq_info(struct hci_dev *hdev);
-int btintel_diagnostics(struct hci_dev *hdev, struct sk_buff *skb);
 #else
 
 static inline int btintel_check_bdaddr(struct hci_dev *hdev)
···
 
 static inline void btintel_print_fseq_info(struct hci_dev *hdev)
 {
-}
-
-static inline int btintel_diagnostics(struct hci_dev *hdev, struct sk_buff *skb)
-{
-	return -EOPNOTSUPP;
 }
 #endif

drivers/bluetooth/btintel_pcie.c

···
 static int btintel_pcie_recv_event(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_event_hdr *hdr = (void *)skb->data;
-	const char diagnostics_hdr[] = { 0x87, 0x80, 0x03 };
 	struct btintel_pcie_data *data = hci_get_drvdata(hdev);
 
 	if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
···
 				kfree_skb(skb);
 				return 0;
 			}
-		}
-
-		/* Handle all diagnostics events separately. May still call
-		 * hci_recv_frame.
-		 */
-		if (len >= sizeof(diagnostics_hdr) &&
-		    memcmp(&skb->data[2], diagnostics_hdr,
-			   sizeof(diagnostics_hdr)) == 0) {
-			return btintel_diagnostics(hdev, skb);
 		}
 
 		/* This is a debug event that comes from IML and OP image when it