Remove useless casts to (void *)

From 4ceb173dae4f1de9ef859d5d0dacb868427a53a0 Mon Sep 17 00:00:00 2001
From: Bertrand Drouvot <bertranddrouvot.pg@gmail.com>
Date: Thu, 20 Nov 2025 11:19:31 +0000
Subject: [PATCH v1] Remove useless casts to (void *)

Their presence causes (small) risks of hiding actual type mismatches or silently
discarding qualifiers. Some have been missed in 7f798aca1d5 and some are
new ones.
---
 src/backend/catalog/pg_publication.c       | 2 +-
 src/backend/commands/copyfromparse.c       | 2 +-
 src/backend/commands/extension.c           | 2 +-
 src/backend/storage/lmgr/lock.c            | 2 +-
 src/backend/tsearch/wparser.c              | 2 +-
 src/backend/utils/cache/inval.c            | 2 +-
 src/backend/utils/misc/injection_point.c   | 2 +-
 src/backend/utils/mmgr/bump.c              | 2 +-
 src/backend/utils/sort/tuplesortvariants.c | 2 +-
 9 files changed, 9 insertions(+), 9 deletions(-)
  12.6% src/backend/catalog/
  29.2% src/backend/commands/
  12.3% src/backend/storage/lmgr/
  10.0% src/backend/tsearch/
   7.3% src/backend/utils/cache/
  10.6% src/backend/utils/misc/
   9.0% src/backend/utils/mmgr/
   8.7% src/backend/utils/sort/

diff --git a/src/backend/catalog/pg_publication.c b/src/backend/catalog/pg_publication.c
index ac2f4ee3561..0994220c53d 100644
--- a/src/backend/catalog/pg_publication.c
+++ b/src/backend/catalog/pg_publication.c
@@ -1369,7 +1369,7 @@ pg_get_publication_sequences(PG_FUNCTION_ARGS)
 		if (publication->allsequences)
 			sequences = GetAllPublicationRelations(RELKIND_SEQUENCE, false);
 
-		funcctx->user_fctx = (void *) sequences;
+		funcctx->user_fctx = sequences;
 
 		MemoryContextSwitchTo(oldcontext);
 	}
diff --git a/src/backend/commands/copyfromparse.c b/src/backend/commands/copyfromparse.c
index b1ae97b833d..a09e7fbace3 100644
--- a/src/backend/commands/copyfromparse.c
+++ b/src/backend/commands/copyfromparse.c
@@ -335,7 +335,7 @@ CopyGetData(CopyFromState cstate, void *databuf, int minread, int maxread)
 				if (avail > maxread)
 					avail = maxread;
 				pq_copymsgbytes(cstate->fe_msgbuf, databuf, avail);
-				databuf = (void *) ((char *) databuf + avail);
+				databuf = (char *) databuf + avail;
 				maxread -= avail;
 				bytesread += avail;
 			}
diff --git a/src/backend/commands/extension.c b/src/backend/commands/extension.c
index 93ef1ad106f..ebc204c4462 100644
--- a/src/backend/commands/extension.c
+++ b/src/backend/commands/extension.c
@@ -931,7 +931,7 @@ execute_sql_string(const char *sql, const char *filename)
 	callback_arg.stmt_len = -1;
 
 	scripterrcontext.callback = script_error_callback;
-	scripterrcontext.arg = (void *) &callback_arg;
+	scripterrcontext.arg = &callback_arg;
 	scripterrcontext.previous = error_context_stack;
 	error_context_stack = &scripterrcontext;
 
diff --git a/src/backend/storage/lmgr/lock.c b/src/backend/storage/lmgr/lock.c
index 4cc7f645c31..9cb78ead105 100644
--- a/src/backend/storage/lmgr/lock.c
+++ b/src/backend/storage/lmgr/lock.c
@@ -1943,7 +1943,7 @@ WaitOnLock(LOCALLOCK *locallock, ResourceOwner owner)
 
 	/* Setup error traceback support for ereport() */
 	waiterrcontext.callback = waitonlock_error_callback;
-	waiterrcontext.arg = (void *) locallock;
+	waiterrcontext.arg = locallock;
 	waiterrcontext.previous = error_context_stack;
 	error_context_stack = &waiterrcontext;
 
diff --git a/src/backend/tsearch/wparser.c b/src/backend/tsearch/wparser.c
index a8ddb610991..55171aa8da1 100644
--- a/src/backend/tsearch/wparser.c
+++ b/src/backend/tsearch/wparser.c
@@ -204,7 +204,7 @@ prs_setup_firstcall(FuncCallContext *funcctx, FunctionCallInfo fcinfo,
 	st->len = st->cur;
 	st->cur = 0;
 
-	funcctx->user_fctx = (void *) st;
+	funcctx->user_fctx = st;
 	if (get_call_result_type(fcinfo, NULL, &tupdesc) != TYPEFUNC_COMPOSITE)
 		elog(ERROR, "return type must be a row type");
 	funcctx->tuple_desc = tupdesc;
diff --git a/src/backend/utils/cache/inval.c b/src/backend/utils/cache/inval.c
index 02505c88b8e..06f736cab45 100644
--- a/src/backend/utils/cache/inval.c
+++ b/src/backend/utils/cache/inval.c
@@ -1480,7 +1480,7 @@ CacheInvalidateHeapTupleCommon(Relation relation,
 	else
 		PrepareToInvalidateCacheTuple(relation, tuple, newtuple,
 									  RegisterCatcacheInvalidation,
-									  (void *) info);
+									  info);
 
 	/*
 	 * Now, is this tuple one of the primary definers of a relcache entry? See
diff --git a/src/backend/utils/misc/injection_point.c b/src/backend/utils/misc/injection_point.c
index 64e6274652c..d02618c7ffe 100644
--- a/src/backend/utils/misc/injection_point.c
+++ b/src/backend/utils/misc/injection_point.c
@@ -186,7 +186,7 @@ injection_point_cache_load(InjectionPointEntry *entry, int slot_idx, uint64 gene
 		elog(ERROR, "could not find library \"%s\" for injection point \"%s\"",
 			 path, entry->name);
 
-	injection_callback_local = (void *)
+	injection_callback_local =
 		load_external_function(path, entry->function, false, NULL);
 
 	if (injection_callback_local == NULL)
diff --git a/src/backend/utils/mmgr/bump.c b/src/backend/utils/mmgr/bump.c
index a263861fe43..e60ec94e139 100644
--- a/src/backend/utils/mmgr/bump.c
+++ b/src/backend/utils/mmgr/bump.c
@@ -407,7 +407,7 @@ BumpAllocChunkFromBlock(MemoryContext context, BumpBlock *block, Size size,
 #ifdef MEMORY_CONTEXT_CHECKING
 	chunk = (MemoryChunk *) block->freeptr;
 #else
-	ptr = (void *) block->freeptr;
+	ptr = block->freeptr;
 #endif
 
 	/* point the freeptr beyond this chunk */
diff --git a/src/backend/utils/sort/tuplesortvariants.c b/src/backend/utils/sort/tuplesortvariants.c
index 41ac4afbf49..9751a7fc495 100644
--- a/src/backend/utils/sort/tuplesortvariants.c
+++ b/src/backend/utils/sort/tuplesortvariants.c
@@ -1954,7 +1954,7 @@ readtup_index_gin(Tuplesortstate *state, SortTuple *stup,
 	LogicalTapeReadExact(tape, tuple, tuplen);
 	if (base->sortopt & TUPLESORT_RANDOMACCESS) /* need trailing length word? */
 		LogicalTapeReadExact(tape, &tuplen, sizeof(tuplen));
-	stup->tuple = (void *) tuple;
+	stup->tuple = tuple;
 
 	/* no abbreviations (FIXME maybe use attrnum for this?) */
 	stup->datum1 = (Datum) 0;
-- 
2.34.1