git: bded8fa3009a - main - umtxq_requeue: remove write-only variable uh2

The branch main has been updated by kib:

URL: https://cgit.FreeBSD.org/src/commit/?id=bded8fa3009aa76c4a8255ebe884cff44cc6142c

commit bded8fa3009aa76c4a8255ebe884cff44cc6142c
Author:     Konstantin Belousov <kib@FreeBSD.org>
AuthorDate: 2021-10-21 17:10:42 +0000
Commit:     Konstantin Belousov <kib@FreeBSD.org>
CommitDate: 2021-10-21 18:40:46 +0000

    umtxq_requeue: remove write-only variable uh2
    
    umtxq_queue_lookup() does not change state.  It is redone inside
    umtxq_insert() later, anyway.
    
    Sponsored by:   The FreeBSD Foundation
    MFC after:      1 week
---
 sys/kern/kern_umtx.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/sys/kern/kern_umtx.c b/sys/kern/kern_umtx.c
index ea87259161c8..c738cf178866 100644
--- a/sys/kern/kern_umtx.c
+++ b/sys/kern/kern_umtx.c
@@ -641,7 +641,7 @@ int
 umtxq_requeue(struct umtx_key *key, int n_wake, struct umtx_key *key2,
     int n_requeue)
 {
-	struct umtxq_queue *uh, *uh2;
+	struct umtxq_queue *uh;
 	struct umtx_q *uq, *uq_temp;
 	int ret;
 
@@ -649,7 +649,6 @@ umtxq_requeue(struct umtx_key *key, int n_wake, struct umtx_key *key2,
 	UMTXQ_LOCKED_ASSERT(umtxq_getchain(key));
 	UMTXQ_LOCKED_ASSERT(umtxq_getchain(key2));
 	uh = umtxq_queue_lookup(key, UMTX_SHARED_QUEUE);
-	uh2 = umtxq_queue_lookup(key2, UMTX_SHARED_QUEUE);
 	if (uh == NULL)
 		return (0);
 	TAILQ_FOREACH_SAFE(uq, &uh->head, uq_link, uq_temp) {