io_uring/zcrx: reduce netmem scope in refill

Reduce the scope of a local var netmem in io_zcrx_ring_refill.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

Author: isilence

io_uring/zcrx.c

@@ -755,7 +755,6 @@ static void io_zcrx_ring_refill(struct page_pool *pp,
 {
 	unsigned int mask = ifq->rq_entries - 1;
 	unsigned int entries;
-	netmem_ref netmem;
 
 	spin_lock_bh(&ifq->rq_lock);
 
@@ -771,6 +770,7 @@ static void io_zcrx_ring_refill(struct page_pool *pp,
 		struct io_zcrx_area *area;
 		struct net_iov *niov;
 		unsigned niov_idx, area_idx;
+		netmem_ref netmem;
 
 		area_idx = rqe->off >> IORING_ZCRX_AREA_SHIFT;
 		niov_idx = (rqe->off & ~IORING_ZCRX_AREA_MASK) >> ifq->niov_shift;