From b804a84c939db8d31d8eedca481c2c74943db4f2 Mon Sep 17 00:00:00 2001
From: Victor Julien <vjulien@oisf.net>
Date: Sat, 2 Apr 2022 10:51:42 +0200
Subject: [PATCH] hash: constify data input

---
 src/util-hash-string.c | 3 +--
 src/util-hash-string.h | 2 +-
 2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/src/util-hash-string.c b/src/util-hash-string.c
index 923cdde85c..baa5ec425d 100644
--- a/src/util-hash-string.c
+++ b/src/util-hash-string.c
@@ -19,7 +19,7 @@
 #include "util-hash-string.h"
 
 /* djb2 string hashing */
-uint32_t StringHashDjb2(uint8_t *data, uint32_t datalen)
+uint32_t StringHashDjb2(const uint8_t *data, uint32_t datalen)
 {
     uint32_t hash = 5381;
     for (uint32_t i = 0; i < datalen; i++) {
@@ -52,4 +52,3 @@ void StringHashFreeFunc(void *data)
 {
     SCFree(data);
 }
-
diff --git a/src/util-hash-string.h b/src/util-hash-string.h
index a08874b19f..17fec82e1f 100644
--- a/src/util-hash-string.h
+++ b/src/util-hash-string.h
@@ -18,7 +18,7 @@
 #ifndef __UTIL_HASH_STRING_H__
 #define __UTIL_HASH_STRING_H__
 
-uint32_t StringHashDjb2(uint8_t *data, uint32_t datalen);
+uint32_t StringHashDjb2(const uint8_t *data, uint32_t datalen);
 uint32_t StringHashFunc(HashTable *ht, void *data, uint16_t datalen);
 char StringHashCompareFunc(void *data1, uint16_t datalen1,
                            void *data2, uint16_t datalen2);