diff --git a/cache.h b/cache.h
index 6a4eb221b3..64669a4d34 100644
--- a/cache.h
+++ b/cache.h
@@ -1451,7 +1451,8 @@ int get_oid_hex(const char *hex, struct object_id *sha1);
 int hex_to_bytes(unsigned char *binary, const char *hex, size_t len);
 
 /*
- * Convert a binary hash to its hex equivalent. The `_r` variant is reentrant,
+ * Convert a binary hash in "unsigned char []" or an object name in
+ * "struct object_id *" to its hex equivalent. The `_r` variant is reentrant,
  * and writes the NUL-terminated output to the buffer `out`, which must be at
  * least `GIT_MAX_HEXSZ + 1` bytes, and returns a pointer to out for
  * convenience.
@@ -1459,12 +1460,12 @@ int hex_to_bytes(unsigned char *binary, const char *hex, size_t len);
  * The non-`_r` variant returns a static buffer, but uses a ring of 4
  * buffers, making it safe to make multiple calls for a single statement, like:
  *
- *   printf("%s -> %s", sha1_to_hex(one), sha1_to_hex(two));
+ *   printf("%s -> %s", hash_to_hex(one), hash_to_hex(two));
+ *   printf("%s -> %s", oid_to_hex(one), oid_to_hex(two));
  */
 char *hash_to_hex_algop_r(char *buffer, const unsigned char *hash, const struct git_hash_algo *);
 char *oid_to_hex_r(char *out, const struct object_id *oid);
 char *hash_to_hex_algop(const unsigned char *hash, const struct git_hash_algo *);	/* static buffer result! */
-char *sha1_to_hex(const unsigned char *sha1);						/* same static buffer */
 char *hash_to_hex(const unsigned char *hash);						/* same static buffer */
 char *oid_to_hex(const struct object_id *oid);						/* same static buffer */
 
diff --git a/contrib/coccinelle/object_id.cocci b/contrib/coccinelle/object_id.cocci
index 6c0d21d8e2..ddf4f22bd7 100644
--- a/contrib/coccinelle/object_id.cocci
+++ b/contrib/coccinelle/object_id.cocci
@@ -10,21 +10,6 @@ struct object_id *OIDPTR;
 - is_null_sha1(OIDPTR->hash)
 + is_null_oid(OIDPTR)
 
-@@
-struct object_id OID;
-@@
-- sha1_to_hex(OID.hash)
-+ oid_to_hex(&OID)
-
-@@
-identifier f != oid_to_hex;
-struct object_id *OIDPTR;
-@@
-  f(...) {<...
-- sha1_to_hex(OIDPTR->hash)
-+ oid_to_hex(OIDPTR)
-  ...>}
-
 @@
 struct object_id OID;
 @@
diff --git a/hex.c b/hex.c
index 8c3f06a192..fd7f00c43f 100644
--- a/hex.c
+++ b/hex.c
@@ -103,11 +103,6 @@ char *hash_to_hex_algop(const unsigned char *hash, const struct git_hash_algo *a
 	return hash_to_hex_algop_r(hexbuffer[bufno], hash, algop);
 }
 
-char *sha1_to_hex(const unsigned char *sha1)
-{
-	return hash_to_hex_algop(sha1, &hash_algos[GIT_HASH_SHA1]);
-}
-
 char *hash_to_hex(const unsigned char *hash)
 {
 	return hash_to_hex_algop(hash, the_hash_algo);
diff --git a/sha1dc_git.c b/sha1dc_git.c
index e0cc9d988c..5c300e812e 100644
--- a/sha1dc_git.c
+++ b/sha1dc_git.c
@@ -19,7 +19,7 @@ void git_SHA1DCFinal(unsigned char hash[20], SHA1_CTX *ctx)
 	if (!SHA1DCFinal(hash, ctx))
 		return;
 	die("SHA-1 appears to be part of a collision attack: %s",
-	    sha1_to_hex(hash));
+	    hash_to_hex_algop(hash, &hash_algos[GIT_HASH_SHA1]));
 }
 
 /*