qcacmn: Add API to get link ID from Basic Variant ML element

Add API to get the link identifier from a given Basic variant
Multi-Link element or element fragment sequence, of the AP that
transmits the Multi-Link element/element fragment sequence or the
nontransmitted BSSID in the same multiple BSSID set as the AP that
transmits the Multi-Link element/element fragment sequence and that is
affiliated with the MLD that is described in the Multi-Link element.

Change-Id: I45039a6ed8ccd9403eae9514c60bcd8d694d2a31
CRs-Fixed: 3040407

umac/mlo_mgr/inc/utils_mlo.h

@@ -116,6 +116,33 @@ QDF_STATUS
 util_get_bvmlie_mldmacaddr(uint8_t *mlieseq, qdf_size_t mlieseqlen,
 			   bool *mldmacaddrfound,
 			   struct qdf_mac_addr *mldmacaddr);
+
+/**
+ * util_get_bvmlie_primary_linkid - Get the link identifier from a given Basic
+ * variant Multi-Link element or element fragment sequence, of the AP that
+ * transmits the Multi-Link element/element fragment sequence or the
+ * nontransmitted BSSID in the same multiple BSSID set as the AP that transmits
+ * the Multi-Link element/element fragment sequence and that is affiliated with
+ * the MLD that is described in the Multi-Link element.
+ *
+ * @mlieseq: Starting address of the Multi-Link element or Multi-Link element
+ * fragment sequence
+ * @mlieseqlen: Total length of the Multi-Link element or Multi-Link element
+ * fragment sequence
+ * @linkidfound: Pointer to the location where a boolean status should be
+ * updated indicating whether the link identifier was found or not. This should
+ * be ignored by the caller if the function returns error.
+ * @linkid: Pointer to the location where the value of the link identifier
+ * should be updated. This should be ignored by the caller if the function
+ * returns error, or if the function indicates that the link identifier was not
+ * found.
+ *
+ * Return: QDF_STATUS_SUCCESS in the case of success, QDF_STATUS value giving
+ * the reason for error in the case of failure
+ */
+QDF_STATUS
+util_get_bvmlie_primary_linkid(uint8_t *mlieseq, qdf_size_t mlieseqlen,
+			       bool *linkidfound, uint8_t *linkid);
 #else
 static inline QDF_STATUS
 util_gen_link_assoc_rsp(uint8_t *frame, qdf_size_t len,
@@ -145,5 +172,12 @@ util_get_bvmlie_mldmacaddr(uint8_t *mlieseq, qdf_size_t mlieseqlen,
 {
 	return QDF_STATUS_E_NOSUPPORT;
 }
+
+static inline QDF_STATUS
+util_get_bvmlie_primary_linkid(uint8_t *mlieseq, qdf_size_t mlieseqlen,
+			       bool *linkidfound, uint8_t *linkid)
+{
+	return QDF_STATUS_E_NOSUPPORT;
+}
 #endif /* WLAN_FEATURE_11BE_MLO */
 #endif /* _WLAN_UTILS_MLO_H_ */