NFC: Export nfc_hci_sak_to_protocol()

Some HCI drivers will need it.

Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

include/net/nfc/hci.h

diff --git a/include/net/nfc/hci.h b/include/net/nfc/hci.h
index 150e3ca..671953e 100644
--- a/include/net/nfc/hci.h
+++ b/include/net/nfc/hci.h
@@ -237,5 +237,6 @@
 int nfc_hci_send_event(struct nfc_hci_dev *hdev, u8 gate, u8 event,
 		       const u8 *param, size_t param_len);
 int nfc_hci_target_discovered(struct nfc_hci_dev *hdev, u8 gate);
+u32 nfc_hci_sak_to_protocol(u8 sak);
 
 #endif /* __NET_HCI_H */

net/nfc/hci/core.c

diff --git a/net/nfc/hci/core.c b/net/nfc/hci/core.c
index 6825a20..7bea574 100644
--- a/net/nfc/hci/core.c
+++ b/net/nfc/hci/core.c
@@ -170,7 +170,7 @@
 	kfree_skb(skb);
 }
 
-static u32 nfc_hci_sak_to_protocol(u8 sak)
+u32 nfc_hci_sak_to_protocol(u8 sak)
 {
 	switch (NFC_HCI_TYPE_A_SEL_PROT(sak)) {
 	case NFC_HCI_TYPE_A_SEL_PROT_MIFARE:
@@ -185,6 +185,7 @@
 		return 0xffffffff;
 	}
 }
+EXPORT_SYMBOL(nfc_hci_sak_to_protocol);
 
 int nfc_hci_target_discovered(struct nfc_hci_dev *hdev, u8 gate)
 {