From a0aa910fd4ec87fe12c56332095f3da180e7710a Mon Sep 17 00:00:00 2001
From: John Baldwin <jhb@FreeBSD.org>
Date: Fri, 8 Apr 2022 17:25:14 -0700
Subject: [PATCH] emac_drain_rxfifo: Use a void cast instead of a dummy
 variable.

---
 sys/arm/allwinner/if_emac.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/sys/arm/allwinner/if_emac.c b/sys/arm/allwinner/if_emac.c
index 5110ce2f9fb..ded5e6fc4bb 100644
--- a/sys/arm/allwinner/if_emac.c
+++ b/sys/arm/allwinner/if_emac.c
@@ -284,10 +284,9 @@ emac_reset(struct emac_softc *sc)
 static void
 emac_drain_rxfifo(struct emac_softc *sc)
 {
-	uint32_t data;
 
 	while (EMAC_READ_REG(sc, EMAC_RX_FBC) > 0)
-		data = EMAC_READ_REG(sc, EMAC_RX_IO_DATA);
+		(void)EMAC_READ_REG(sc, EMAC_RX_IO_DATA);
 }
 
 static void