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Date: Sat, 14 May 2016 20:29:48 -0400 From: Michael Chan <michael.chan@...adcom.com> To: davem@...emloft.net Cc: netdev@...r.kernel.org Subject: [PATCH net-next 9/9] 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@...adcom.com> Signed-off-by: Michael Chan <michael.chan@...adcom.com> --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index f2ac7da..643c3ec 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -1433,7 +1433,7 @@ 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. */ -- 1.8.3.1
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