--- zzzz-none-000/linux-3.10.107/fs/cifs/cifs_unicode.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/fs/cifs/cifs_unicode.h	2021-02-04 17:41:59.000000000 +0000
@@ -52,6 +52,36 @@
 #define UNI_PIPE        (__u16) ('|' + 0xF000)
 #define UNI_SLASH       (__u16) ('\\' + 0xF000)
 
+/*
+ * Macs use an older "SFM" mapping of the symbols above. Fortunately it does
+ * not conflict (although almost does) with the mapping above.
+ */
+
+#define SFM_ASTERISK    ((__u16) 0xF021)
+#define SFM_QUESTION    ((__u16) 0xF025)
+#define SFM_COLON       ((__u16) 0xF022)
+#define SFM_GRTRTHAN    ((__u16) 0xF024)
+#define SFM_LESSTHAN    ((__u16) 0xF023)
+#define SFM_PIPE        ((__u16) 0xF027)
+#define SFM_SLASH       ((__u16) 0xF026)
+#define SFM_PERIOD	((__u16) 0xF028)
+#define SFM_SPACE	((__u16) 0xF029)
+
+/*
+ * Mapping mechanism to use when one of the seven reserved characters is
+ * encountered.  We can only map using one of the mechanisms at a time
+ * since otherwise readdir could return directory entries which we would
+ * not be able to open
+ *
+ * NO_MAP_UNI_RSVD  = do not perform any remapping of the character
+ * SFM_MAP_UNI_RSVD = map reserved characters using SFM scheme (MAC compatible)
+ * SFU_MAP_UNI_RSVD = map reserved characters ala SFU ("mapchars" option)
+ *
+ */
+#define NO_MAP_UNI_RSVD		0
+#define SFM_MAP_UNI_RSVD	1
+#define SFU_MAP_UNI_RSVD	2
+
 /* Just define what we want from uniupr.h.  We don't want to define the tables
  * in each source file.
  */
@@ -75,7 +105,7 @@
 
 #ifdef __KERNEL__
 int cifs_from_utf16(char *to, const __le16 *from, int tolen, int fromlen,
-		    const struct nls_table *codepage, bool mapchar);
+		    const struct nls_table *cp, int map_type);
 int cifs_utf16_bytes(const __le16 *from, int maxbytes,
 		     const struct nls_table *codepage);
 int cifs_strtoUTF16(__le16 *, const char *, int, const struct nls_table *);
@@ -84,6 +114,7 @@
 			      const struct nls_table *codepage);
 extern int cifsConvertToUTF16(__le16 *target, const char *source, int maxlen,
 			      const struct nls_table *cp, int mapChars);
+extern int cifs_remap(struct cifs_sb_info *cifs_sb);
 #ifdef CONFIG_CIFS_SMB2
 extern __le16 *cifs_strndup_to_utf16(const char *src, const int maxlen,
 				     int *utf16_len, const struct nls_table *cp,
@@ -91,6 +122,8 @@
 #endif /* CONFIG_CIFS_SMB2 */
 #endif
 
+wchar_t cifs_toupper(wchar_t in);
+
 /*
  * UniStrcat:  Concatenate the second string to the first
  *