drivers: Remove explicit invocations of mmiowb()

[linux.git] / drivers / net / ethernet / qlogic / qede / qede_fp.c

diff --git a/drivers/net/ethernet/qlogic/qede/qede_fp.c b/drivers/net/ethernet/qlogic/qede/qede_fp.c
index 31b046e24565f38dbdb117ec6cd0f69430419c45..6f7e3622c6b41816b0c166e33475c9582b5c7841 100644 (file)
--- a/drivers/net/ethernet/qlogic/qede/qede_fp.c
+++ b/drivers/net/ethernet/qlogic/qede/qede_fp.c
@@ -580,14 +580,6 @@ void qede_update_rx_prod(struct qede_dev *edev, struct qede_rx_queue *rxq)
 
        internal_ram_wr(rxq->hw_rxq_prod_addr, sizeof(rx_prods),
                        (u32 *)&rx_prods);
-
-       /* mmiowb is needed to synchronize doorbell writes from more than one
-        * processor. It guarantees that the write arrives to the device before
-        * the napi lock is released and another qede_poll is called (possibly
-        * on another CPU). Without this barrier, the next doorbell can bypass
-        * this doorbell. This is applicable to IA64/Altix systems.
-        */
-       mmiowb();
 }
 
 static void qede_get_rxhash(struct sk_buff *skb, u8 bitfields, __le32 rss_hash)