1 files changed, 22 insertions, 1 deletions
diff --git a/fs/smb/client/dns_resolve.h b/fs/smb/client/dns_resolve.h
index 6eb0c15a2440..0dc706f2c422 100644
--- a/fs/smb/client/dns_resolve.h
+++ b/fs/smb/client/dns_resolve.h
@@ -12,9 +12,30 @@
 #define _DNS_RESOLVE_H
 
 #include <linux/net.h>
+#include "cifsglob.h"
+#include "cifsproto.h"
 
 #ifdef __KERNEL__
-int dns_resolve_server_name_to_ip(const char *unc, struct sockaddr *ip_addr, time64_t *expiry);
+
+int dns_resolve_name(const char *dom, const char *name,
+		     size_t namelen, struct sockaddr *ip_addr);
+
+static inline int dns_resolve_unc(const char *dom, const char *unc,
+				  struct sockaddr *ip_addr)
+{
+	const char *name;
+	size_t namelen;
+
+	if (!unc || strlen(unc) < 3)
+		return -EINVAL;
+
+	extract_unc_hostname(unc, &name, &namelen);
+	if (!namelen)
+		return -EINVAL;
+
+	return dns_resolve_name(dom, name, namelen, ip_addr);
+}
+
 #endif /* KERNEL */
 
 #endif /* _DNS_RESOLVE_H */