From b8ebd99aa5fedbfc8060ec080e1395ba25aeab63 Mon Sep 17 00:00:00 2001
From: John Baldwin <jhb@FreeBSD.org>
Date: Wed, 13 Apr 2022 16:08:20 -0700
Subject: [PATCH] vm: Use __diagused for variables only used in KASSERT().

---
 sys/vm/swap_pager.c  | 2 +-
 sys/vm/vm_map.c      | 8 ++++----
 sys/vm/vm_page.c     | 4 ++--
 sys/vm/vm_swapout.c  | 2 +-
 sys/vm/vnode_pager.c | 2 +-
 5 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/sys/vm/swap_pager.c b/sys/vm/swap_pager.c
index ef126ee5fdf3..b1acaeb04bd8 100644
--- a/sys/vm/swap_pager.c
+++ b/sys/vm/swap_pager.c
@@ -1015,7 +1015,7 @@ static bool
 swp_pager_xfer_source(vm_object_t srcobject, vm_object_t dstobject,
     vm_pindex_t pindex, daddr_t addr)
 {
-	daddr_t dstaddr;
+	daddr_t dstaddr __diagused;
 
 	KASSERT((srcobject->flags & OBJ_SWAP) != 0,
 	    ("%s: Srcobject not swappable", __func__));
diff --git a/sys/vm/vm_map.c b/sys/vm/vm_map.c
index 2efefd16defb..1842b6e1a314 100644
--- a/sys/vm/vm_map.c
+++ b/sys/vm/vm_map.c
@@ -223,7 +223,7 @@ static void
 kmapent_free(void *item, vm_size_t size, uint8_t pflag)
 {
 	vm_offset_t addr;
-	int error;
+	int error __diagused;
 
 	if ((pflag & UMA_SLAB_PRIV) == 0)
 		/* XXX leaked */
@@ -4250,7 +4250,7 @@ vmspace_fork(struct vmspace *vm1, vm_ooffset_t *fork_charge)
 	vm_map_t new_map, old_map;
 	vm_map_entry_t new_entry, old_entry;
 	vm_object_t object;
-	int error, locked;
+	int error, locked __diagused;
 	vm_inherit_t inh;
 
 	old_map = &vm1->vm_map;
@@ -4600,13 +4600,13 @@ vm_map_growstack(vm_map_t map, vm_offset_t addr, vm_map_entry_t gap_entry)
 	vm_offset_t gap_end, gap_start, grow_start;
 	vm_size_t grow_amount, guard, max_grow;
 	rlim_t lmemlim, stacklim, vmemlim;
-	int rv, rv1;
+	int rv, rv1 __diagused;
 	bool gap_deleted, grow_down, is_procstack;
 #ifdef notyet
 	uint64_t limit;
 #endif
 #ifdef RACCT
-	int error;
+	int error __diagused;
 #endif
 
 	p = curproc;
diff --git a/sys/vm/vm_page.c b/sys/vm/vm_page.c
index 3a0d70a47423..50fe50ddb46c 100644
--- a/sys/vm/vm_page.c
+++ b/sys/vm/vm_page.c
@@ -1545,7 +1545,7 @@ static void
 vm_page_object_remove(vm_page_t m)
 {
 	vm_object_t object;
-	vm_page_t mrem;
+	vm_page_t mrem __diagused;
 
 	vm_page_assert_xbusied(m);
 	object = m->object;
@@ -1770,7 +1770,7 @@ static bool
 vm_page_replace_hold(vm_page_t mnew, vm_object_t object, vm_pindex_t pindex,
     vm_page_t mold)
 {
-	vm_page_t mret;
+	vm_page_t mret __diagused;
 	bool dropped;
 
 	VM_OBJECT_ASSERT_WLOCKED(object);
diff --git a/sys/vm/vm_swapout.c b/sys/vm/vm_swapout.c
index 008dd6f00cbc..fc9686d58a4f 100644
--- a/sys/vm/vm_swapout.c
+++ b/sys/vm/vm_swapout.c
@@ -560,7 +560,7 @@ vm_thread_swapin(struct thread *td, int oom_alloc)
 {
 	vm_page_t ma[KSTACK_MAX_PAGES];
 	vm_offset_t kaddr;
-	int a, count, i, j, pages, rv;
+	int a, count, i, j, pages, rv __diagused;
 
 	kaddr = td->td_kstack;
 	pages = td->td_kstack_pages;
diff --git a/sys/vm/vnode_pager.c b/sys/vm/vnode_pager.c
index 4330c17c2033..c9917ecc2589 100644
--- a/sys/vm/vnode_pager.c
+++ b/sys/vm/vnode_pager.c
@@ -1290,7 +1290,7 @@ static void
 vnode_pager_putpages(vm_object_t object, vm_page_t *m, int count,
     int flags, int *rtvals)
 {
-	int rtval;
+	int rtval __diagused;
 	struct vnode *vp;
 	int bytes = count * PAGE_SIZE;