Commit b67daab0 authored May 15, 2016 by Michael Chan Committed by David S. Miller May 15, 2016

bnxt_en: Use dma_rmb() instead of rmb().



Use the weaker but more appropriate dma_rmb() to order the reading of
the completion ring.

Suggested-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 5049e33b

drivers/net/ethernet/broadcom/bnxt/bnxt.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1494,7 +1494,7 @@ static int bnxt_poll_work(struct bnxt bp, struct bnxt_napi bnapi, int budget)
		/* The valid test of the entry must be done first before
		* reading any further.
		*/
		rmb();
		dma_rmb();
		if (TX_CMP_TYPE(txcmp) == CMP_TYPE_TX_L2_CMP) {
		tx_pkts++;
		/* return full budget so NAPI will complete. */