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: NAjit Khaparde <ajit.khaparde@broadcom.com> Signed-off-by: NMichael Chan <michael.chan@broadcom.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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