profiling: fix const compiler warnings

src/util-profiling-locks.c

@@ -38,7 +38,7 @@ __thread int record_locks = 0;
 int profiling_locks_enabled = 0;
 int profiling_locks_output_to_file = 0;
 char *profiling_locks_file_name = NULL;
-char *profiling_locks_file_mode = "a";
+const char *profiling_locks_file_mode = "a";
 
 typedef struct LockRecord_ {
     char *file; // hash
@@ -106,7 +106,7 @@ int LockRecordInitHash()
     return 0;
 }
 
-void LockRecordAdd(ProfilingLock *l)
+static void LockRecordAdd(ProfilingLock *l)
 {
     LockRecord fn = { NULL, NULL, 0,0,0,0,0,0}, *ptr = &fn;
     fn.file = l->file;
@@ -153,7 +153,7 @@ void SCProfilingAddPacketLocks(void *p)
     }
 }
 
-void SCProfilingListLocks(void)
+static void SCProfilingListLocks(void)
 {
     FILE *fp = NULL;
 
@@ -180,7 +180,7 @@ void SCProfilingListLocks(void)
     while (b) {
         LockRecord *r = HashListTableGetListData(b);
 
-        char *lock;
+        const char *lock;
         switch (r->type) {
             case LOCK_MUTEX:
                 lock = "mtx";

src/util-profiling.c

@@ -55,7 +55,7 @@ static FILE *packet_profile_csv_fp = NULL;
 extern int profiling_locks_enabled;
 extern int profiling_locks_output_to_file;
 extern char *profiling_locks_file_name;
-extern char *profiling_locks_file_mode;
+extern const char *profiling_locks_file_mode;
 
 typedef struct SCProfilePacketData_ {
     uint64_t min;
@@ -255,8 +255,7 @@ SCProfilingInit(void)
 
             const char *filename = ConfNodeLookupChildValue(conf, "filename");
             if (filename != NULL) {
-                char *log_dir;
-                log_dir = ConfigGetLogDirectory();
+                const char *log_dir = ConfigGetLogDirectory();
 
                 profiling_locks_file_name = SCMalloc(PATH_MAX);
                 if (unlikely(profiling_locks_file_name == NULL)) {