From 6e7a57581abea5335cbf29d738724d25d3c302d7 Mon Sep 17 00:00:00 2001 From: Nick Child Date: Wed, 7 Aug 2024 16:18:06 -0500 Subject: [PATCH] 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 Link: https://patch.msgid.link/20240807211809.1259563-5-nnac123@linux.ibm.com Signed-off-by: Jakub Kicinski --- 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 58a517ecbda39..256feac588ef7 100644 --- a/drivers/net/ethernet/ibm/ibmvnic.c +++ b/drivers/net/ethernet/ibm/ibmvnic.c @@ -2459,9 +2459,6 @@ 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;