4 files changed, 6 insertions, 6 deletions
diff --git a/commit.c b/commit.c
index 74d660188..ac337c7d7 100644
--- a/commit.c
+++ b/commit.c
@@ -245,10 +245,10 @@ int unregister_shallow(const unsigned char *sha1)
 	return 0;
 }
 
-int parse_commit_buffer(struct commit *item, void *buffer, unsigned long size)
+int parse_commit_buffer(struct commit *item, const void *buffer, unsigned long size)
 {
-	char *tail = buffer;
-	char *bufptr = buffer;
+	const char *tail = buffer;
+	const char *bufptr = buffer;
 	unsigned char parent[20];
 	struct commit_list **pptr;
 	struct commit_graft *graft;
diff --git a/commit.h b/commit.h
index eb6c5af1f..659c87c3e 100644
--- a/commit.h
+++ b/commit.h
@@ -38,7 +38,7 @@ struct commit *lookup_commit_reference_gently(const unsigned char *sha1,
 					      int quiet);
 struct commit *lookup_commit_reference_by_name(const char *name);
 
-int parse_commit_buffer(struct commit *item, void *buffer, unsigned long size);
+int parse_commit_buffer(struct commit *item, const void *buffer, unsigned long size);
 int parse_commit(struct commit *item);
 
 /* Find beginning and length of commit subject. */
diff --git a/tag.c b/tag.c
index f789744cc..ecf7c1e9c 100644
--- a/tag.c
+++ b/tag.c
@@ -56,7 +56,7 @@ static unsigned long parse_tag_date(const char *buf, const char *tail)
 	return strtoul(dateptr, NULL, 10);
 }
 
-int parse_tag_buffer(struct tag *item, void *data, unsigned long size)
+int parse_tag_buffer(struct tag *item, const void *data, unsigned long size)
 {
 	unsigned char sha1[20];
 	char type[20];
diff --git a/tag.h b/tag.h
index 852237003..5ee88e655 100644
--- a/tag.h
+++ b/tag.h
@@ -13,7 +13,7 @@ struct tag {
 };
 
 extern struct tag *lookup_tag(const unsigned char *sha1);
-extern int parse_tag_buffer(struct tag *item, void *data, unsigned long size);
+extern int parse_tag_buffer(struct tag *item, const void *data, unsigned long size);
 extern int parse_tag(struct tag *item);
 extern struct object *deref_tag(struct object *, const char *, int);
 extern size_t parse_signature(const char *buf, unsigned long size);