bnxt_en: Refactor bnxt_alloc_stats().

Reverse the condition of the large "if" block and return early.  This
will simplify the follow up patch to add PCIe statistics.
Signed-off-by: NVasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

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

@@ -3440,7 +3440,9 @@ static int bnxt_alloc_stats(struct bnxt *bp)
 		cpr->hw_stats_ctx_id = INVALID_STATS_CTX_ID;
 	}
 
-	if (BNXT_PF(bp) && bp->chip_num != CHIP_NUM_58700) {
+	if (BNXT_VF(bp) || bp->chip_num == CHIP_NUM_58700)
+		return 0;
+
 	if (bp->hw_rx_port_stats)
 		goto alloc_ext_stats;
 
@@ -3454,26 +3456,22 @@ static int bnxt_alloc_stats(struct bnxt *bp)
 	if (!bp->hw_rx_port_stats)
 		return -ENOMEM;
 
-		bp->hw_tx_port_stats = (void *)(bp->hw_rx_port_stats + 1) +
-				       512;
+	bp->hw_tx_port_stats = (void *)(bp->hw_rx_port_stats + 1) + 512;
 	bp->hw_tx_port_stats_map = bp->hw_rx_port_stats_map +
 				   sizeof(struct rx_port_stats) + 512;
 	bp->flags |= BNXT_FLAG_PORT_STATS;
 
 alloc_ext_stats:
 	/* Display extended statistics only if FW supports it */
-		if (bp->hwrm_spec_code < 0x10804 ||
-		    bp->hwrm_spec_code == 0x10900)
+	if (bp->hwrm_spec_code < 0x10804 || bp->hwrm_spec_code == 0x10900)
 		return 0;
 
 	if (bp->hw_rx_port_stats_ext)
 		goto alloc_tx_ext_stats;
 
 	bp->hw_rx_port_stats_ext =
-			dma_alloc_coherent(&pdev->dev,
-					   sizeof(struct rx_port_stats_ext),
-					   &bp->hw_rx_port_stats_ext_map,
-					   GFP_KERNEL);
+		dma_alloc_coherent(&pdev->dev, sizeof(struct rx_port_stats_ext),
+				   &bp->hw_rx_port_stats_ext_map, GFP_KERNEL);
 	if (!bp->hw_rx_port_stats_ext)
 		return 0;
 
@@ -3489,7 +3487,6 @@ static int bnxt_alloc_stats(struct bnxt *bp)
 					   GFP_KERNEL);
 	}
 	bp->flags |= BNXT_FLAG_PORT_STATS_EXT;
-	}
 	return 0;
 }