cred: use 'const' in get_current_{user,groups}

Avoid annoying warnings from these functions ("discards qualifiers")
because they assign 'current_cred()' to a non-const pointer.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/include/linux/cred.h b/include/linux/cred.h
index 8e2fd44..4030896 100644 (file)
--- a/include/linux/cred.h
+++ b/include/linux/cred.h
@@ -307,7 +307,7 @@ static inline void put_cred(const struct cred *_cred)
 #define get_current_user()                             \
 ({                                                     \
        struct user_struct *__u;                        \
-       struct cred *__cred;                            \
+       const struct cred *__cred;                      \
        __cred = current_cred();                        \
        __u = get_uid(__cred->user);                    \
        __u;                                            \
@@ -322,7 +322,7 @@ static inline void put_cred(const struct cred *_cred)
 #define get_current_groups()                           \
 ({                                                     \
        struct group_info *__groups;                    \
-       struct cred *__cred;                            \
+       const struct cred *__cred;                      \
        __cred = current_cred();                        \
        __groups = get_group_info(__cred->group_info);  \
        __groups;                                       \