From: Nick Child Date: Wed, 7 Aug 2024 21:18:06 +0000 (-0500) Subject: ibmvnic: Remove duplicate memory barriers in tx X-Git-Tag: v6.12-rc1~232^2~287^2~3 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=6e7a57581abea5335cbf29d738724d25d3c302d7;p=linux-2.6-block.git 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 --- diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c index 58a517ecbda3..256feac588ef 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;