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Message-ID: <20240806193706.998148-5-nnac123@linux.ibm.com>
Date: Tue, 6 Aug 2024 14:37:03 -0500
From: Nick Child <nnac123@...ux.ibm.com>
To: netdev@...r.kernel.org
Cc: bjking1@...ux.ibm.com, haren@...ux.ibm.com, ricklind@...ibm.com,
Nick Child <nnac123@...ux.ibm.com>
Subject: [PATCH net-next v2 4/7] ibmvnic: Remove duplicate memory barriers in tx
send_subcrq_[in]direct() already has a dma memory barrier.
Remove the earlier one.
Signed-off-by: Nick Child <nnac123@...ux.ibm.com>
---
drivers/net/ethernet/ibm/ibmvnic.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index 4fe2c8c17b05..533e79a0c6ac 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -2456,9 +2456,6 @@ static netdev_tx_t ibmvnic_xmit(struct sk_buff *skb, struct net_device *netdev)
skb_copy_from_linear_data(skb, dst, skb->len);
}
- /* post changes to long_term_buff *dst before VIOS accessing it */
- dma_wmb();
-
tx_pool->consumer_index =
(tx_pool->consumer_index + 1) % tx_pool->num_buffers;
--
2.43.0
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