[PATCH 3/9] selinux: declare name parameter of hash_eval const

[Christian Göttsche]

String literals are passed as second argument to hash_eval(). Also the
parameter is already declared const in the DEBUG_HASHES configuration.

Reported by clang [-Wwrite-strings]:

    security/selinux/ss/policydb.c:1881:26: error: passing 'const char [8]' to parameter of type 'char *' discards qualifiers [-Werror,-Wincompatible-pointer-types-discards-qualifiers]
            hash_eval(&p->range_tr, rangetr);
                                    ^~~~~~~~~
    security/selinux/ss/policydb.c:707:55: note: passing argument to parameter 'hash_name' here
    static inline void hash_eval(struct hashtab *h, char *hash_name)
                                                          ^
    security/selinux/ss/policydb.c:2099:32: error: passing 'const char [11]' to parameter of type 'char *' discards qualifiers [-Werror,-Wincompatible-pointer-types-discards-qualifiers]
            hash_eval(&p->filename_trans, filenametr);
                                          ^~~~~~~~~~~~
    security/selinux/ss/policydb.c:707:55: note: passing argument to parameter 'hash_name' here
    static inline void hash_eval(struct hashtab *h, char *hash_name)
                                                          ^

Signed-off-by: Christian Göttsche <cgzones@xxxxxxxxxxxxxx>
---
 security/selinux/ss/policydb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/security/selinux/ss/policydb.c b/security/selinux/ss/policydb.c
index 0ae1b718194a..67e03f6e8966 100644
--- a/security/selinux/ss/policydb.c
+++ b/security/selinux/ss/policydb.c
@@ -704,7 +704,7 @@ static void symtab_hash_eval(struct symtab *s)
 }
 
 #else
-static inline void hash_eval(struct hashtab *h, char *hash_name)
+static inline void hash_eval(struct hashtab *h, const char *hash_name)
 {
 }
 #endif
-- 
2.34.1