From c6a492debc0d4c74c26f48db18aeeb6d4db8a088 Mon Sep 17 00:00:00 2001
From: Michael Paquier <michael@paquier.xyz>
Date: Tue, 9 Sep 2025 12:42:48 +0900
Subject: [PATCH v3 2/2] Remove dynahash.h

All the callers of my_log2() are now limited to dynahash.c, so let's
remove its header.  This capability is provided by pg_bitutils.h
already.
---
 src/include/utils/dynahash.h      | 20 --------------------
 src/backend/utils/hash/dynahash.c |  4 ++--
 2 files changed, 2 insertions(+), 22 deletions(-)
 delete mode 100644 src/include/utils/dynahash.h

diff --git a/src/include/utils/dynahash.h b/src/include/utils/dynahash.h
deleted file mode 100644
index a4362d3f65e5..000000000000
--- a/src/include/utils/dynahash.h
+++ /dev/null
@@ -1,20 +0,0 @@
-/*-------------------------------------------------------------------------
- *
- * dynahash.h
- *	  POSTGRES dynahash.h file definitions
- *
- *
- * Portions Copyright (c) 1996-2025, PostgreSQL Global Development Group
- * Portions Copyright (c) 1994, Regents of the University of California
- *
- * IDENTIFICATION
- *		src/include/utils/dynahash.h
- *
- *-------------------------------------------------------------------------
- */
-#ifndef DYNAHASH_H
-#define DYNAHASH_H
-
-extern int	my_log2(int64 num);
-
-#endif							/* DYNAHASH_H */
diff --git a/src/backend/utils/hash/dynahash.c b/src/backend/utils/hash/dynahash.c
index 1aeee5be42ac..ac94b9e93c6e 100644
--- a/src/backend/utils/hash/dynahash.c
+++ b/src/backend/utils/hash/dynahash.c
@@ -102,7 +102,6 @@
 #include "port/pg_bitutils.h"
 #include "storage/shmem.h"
 #include "storage/spin.h"
-#include "utils/dynahash.h"
 #include "utils/memutils.h"
 
 
@@ -281,6 +280,7 @@ static bool init_htab(HTAB *hashp, int64 nelem);
 pg_noreturn static void hash_corrupted(HTAB *hashp);
 static uint32 hash_initial_lookup(HTAB *hashp, uint32 hashvalue,
 								  HASHBUCKET **bucketptr);
+static int	my_log2(int64 num);
 static int64 next_pow2_int64(int64 num);
 static int	next_pow2_int(int64 num);
 static void register_seq_scan(HTAB *hashp);
@@ -1813,7 +1813,7 @@ hash_corrupted(HTAB *hashp)
 }
 
 /* calculate ceil(log base 2) of num */
-int
+static int
 my_log2(int64 num)
 {
 	/*
-- 
2.51.0