diff --git a/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c b/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c
index ee703a48bf..ebbe8a7472 100644
--- a/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c
+++ b/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c
@@ -298,7 +298,7 @@ static int ag71xx_rings_init(struct ag71xx *ag)
 		return -ENOMEM;
 	}
 
-	rx->buf = &tx->buf[BIT(tx->order)];
+	rx->buf = &tx->buf[tx_size];
 	rx->descs_cpu = ((void *)tx->descs_cpu) + tx_size * AG71XX_DESC_SIZE;
 	rx->descs_dma = tx->descs_dma + tx_size * AG71XX_DESC_SIZE;
 
diff --git a/target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c b/target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c
index f8f19c6e41..0924b81b92 100644
--- a/target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c
+++ b/target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c
@@ -284,7 +284,7 @@ static int ag71xx_rings_init(struct ag71xx *ag)
 		return -ENOMEM;
 	}
 
-	rx->buf = &tx->buf[BIT(tx->order)];
+	rx->buf = &tx->buf[tx_size];
 	rx->descs_cpu = ((void *)tx->descs_cpu) + tx_size * AG71XX_DESC_SIZE;
 	rx->descs_dma = tx->descs_dma + tx_size * AG71XX_DESC_SIZE;