From 63709fd4296221aa4ebd06230bce3eed70ddd927 Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Fri, 16 Jun 2017 21:13:38 +0300
Subject: [PATCH] uuid: Take const on input of uuid_is_null() and
 guid_is_null()
Git-commit: 63709fd4296221aa4ebd06230bce3eed70ddd927
Patch-mainline: v4.13
References: FATE#324324

The null check functions do not and must not modify contents of the UUID
or GUID supplied.

Mark argument explicitly to reflect that.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Oliver Neukum <oneukum@suse.com>
---
 include/linux/uuid.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/uuid.h b/include/linux/uuid.h
index 75f7182d5360..d1defe4ab167 100644
--- a/include/linux/uuid.h
+++ b/include/linux/uuid.h
@@ -48,7 +48,7 @@ static inline void guid_copy(guid_t *dst, const guid_t *src)
 	memcpy(dst, src, sizeof(guid_t));
 }
 
-static inline bool guid_is_null(guid_t *guid)
+static inline bool guid_is_null(const guid_t *guid)
 {
 	return guid_equal(guid, &guid_null);
 }
@@ -63,7 +63,7 @@ static inline void uuid_copy(uuid_t *dst, const uuid_t *src)
 	memcpy(dst, src, sizeof(uuid_t));
 }
 
-static inline bool uuid_is_null(uuid_t *uuid)
+static inline bool uuid_is_null(const uuid_t *uuid)
 {
 	return uuid_equal(uuid, &uuid_null);
 }
-- 
2.16.4