[PATCH v3 1/4] initrd: Add the preprocessor guard in initrd.h

Kefeng Wang
2021-01-15T05:42:52Z

Add the preprocessor guard in initrd.h to prevent possible
build error from the multiple inclusion of same header file
multiple time.

Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
---
include/linux/initrd.h | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/include/linux/initrd.h b/include/linux/initrd.h
index 8db6f8c8030b..fc30ac30e10e 100644
--- a/include/linux/initrd.h
+++ b/include/linux/initrd.h
@@ -1,5 +1,8 @@
/* SPDX-License-Identifier: GPL-2.0 */

+#ifndef __LINUX_INITRD_H
+#define __LINUX_INITRD_H
+
#define INITRD_MINOR 250 /* shouldn't collide with /dev/ram* too soon ... */

/* starting block # of image */
@@ -24,3 +27,5 @@ extern char __initramfs_start[];
extern unsigned long __initramfs_size;

void console_on_rootfs(void);
+
+#endif /* __LINUX_INITRD_H */
--
2.26.2