25 static int mtd_test_super(struct super_block *sb, struct fs_context *fc)  in mtd_test_super()  argument
27 	struct mtd_info *mtd = fc->sget_key;  in mtd_test_super()
29 	if (sb->s_mtd == fc->sget_key) {  in mtd_test_super()
45 static int mtd_set_super(struct super_block *sb, struct fs_context *fc)  in mtd_set_super()  argument
47 	sb->s_mtd = fc->sget_key;  in mtd_set_super()
56 static int mtd_get_sb(struct fs_context *fc,  in mtd_get_sb()  argument
64 	fc->sget_key = mtd;  in mtd_get_sb()
65 	sb = sget_fc(fc, mtd_test_super, mtd_set_super);  in mtd_get_sb()
79 		ret = fill_super(sb, fc);  in mtd_get_sb()
86 	BUG_ON(fc->root);  in mtd_get_sb()
87 	fc->root = dget(sb->s_root);  in mtd_get_sb()
98 static int mtd_get_sb_by_nr(struct fs_context *fc, int mtdnr,  in mtd_get_sb_by_nr()  argument
106 		errorf(fc, "MTDSB: Device #%u doesn't appear to exist\n", mtdnr);  in mtd_get_sb_by_nr()
110 	return mtd_get_sb(fc, mtd, fill_super);  in mtd_get_sb_by_nr()
118 int get_tree_mtd(struct fs_context *fc,  in get_tree_mtd()  argument
120 				struct fs_context *fc))  in get_tree_mtd()
128 	if (!fc->source)  in get_tree_mtd()
129 		return invalf(fc, "No source specified");  in get_tree_mtd()
131 	pr_debug("MTDSB: dev_name \"%s\"\n", fc->source);  in get_tree_mtd()
138 	if (fc->source[0] == 'm' &&  in get_tree_mtd()
139 	    fc->source[1] == 't' &&  in get_tree_mtd()
140 	    fc->source[2] == 'd') {  in get_tree_mtd()
141 		if (fc->source[3] == ':') {  in get_tree_mtd()
146 				 fc->source + 4);  in get_tree_mtd()
148 			mtd = get_mtd_device_nm(fc->source + 4);  in get_tree_mtd()
150 				return mtd_get_sb(fc, mtd, fill_super);  in get_tree_mtd()
152 			errorf(fc, "MTD: MTD device with name \"%s\" not found",  in get_tree_mtd()
153 			       fc->source + 4);  in get_tree_mtd()
155 		} else if (isdigit(fc->source[3])) {  in get_tree_mtd()
159 			mtdnr = simple_strtoul(fc->source + 3, &endptr, 0);  in get_tree_mtd()
163 				return mtd_get_sb_by_nr(fc, mtdnr, fill_super);  in get_tree_mtd()
172 	bdev = lookup_bdev(fc->source);  in get_tree_mtd()
175 		errorf(fc, "MTD: Couldn't look up '%s': %d", fc->source, ret);  in get_tree_mtd()
185 		return mtd_get_sb_by_nr(fc, mtdnr, fill_super);  in get_tree_mtd()
189 	if (!(fc->sb_flags & SB_SILENT))  in get_tree_mtd()
190 		errorf(fc, "MTD: Attempt to mount non-MTD device \"%s\"",  in get_tree_mtd()
191 		       fc->source);  in get_tree_mtd()