Commit 6e7a5758 authored by Nick Child's avatar Nick Child Committed by Jakub Kicinski
Browse files

ibmvnic: Remove duplicate memory barriers in tx 



send_subcrq_[in]direct() already has a dma memory barrier.
Remove the earlier one.

Signed-off-by: default avatarNick Child <nnac123@linux.ibm.com>
Link: https://patch.msgid.link/20240807211809.1259563-5-nnac123@linux.ibm.com


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent d95f749a

drivers/net/ethernet/ibm/ibmvnic.c

+0 −3
Original line number Diff line number Diff line
@@ -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;