fatfs: make global constants extern

components/fatfs/test/test_fatfs_common.h

@@ -1,16 +1,8 @@
-// Copyright 2015-2017 Espressif Systems (Shanghai) PTE LTD
+/*
-//
+ * SPDX-FileCopyrightText: 2015-2022 Espressif Systems (Shanghai) CO LTD
-// Licensed under the Apache License, Version 2.0 (the "License");
+ *
-// you may not use this file except in compliance with the License.
+ * SPDX-License-Identifier: Apache-2.0
-// You may obtain a copy of the License at
+ */
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
 
 #pragma once
 
@@ -30,8 +22,8 @@
         } \
     } while(0)
 
-const char* fatfs_test_hello_str;
+extern const char* fatfs_test_hello_str;
-const char* fatfs_test_hello_str_utf;
+extern const char* fatfs_test_hello_str_utf;
 
 void test_fatfs_create_file_with_text(const char* name, const char* text);
 

tools/ci/check_copyright_ignore.txt

@@ -859,7 +859,6 @@ components/fatfs/src/ffconf.h
 components/fatfs/src/ffsystem.c
 components/fatfs/src/ffunicode.c
 components/fatfs/test/test_fatfs_common.c
-components/fatfs/test/test_fatfs_common.h
 components/fatfs/test/test_fatfs_rawflash.c
 components/fatfs/test/test_fatfs_spiflash.c
 components/fatfs/test_fatfs_host/main.cpp