octeontx: fix thunderx BGX underflow irq name

request_irq requires irq names to be static/allocated and not on the stack

Signed-off-by: Tim Harvey <tharvey@gateworks.com>

target/linux/octeontx/patches-4.14/0001-net-thunderx-workaround-BGX-TX-Underflow-issue.patch

@@ -15,7 +15,15 @@ Signed-off-by: Tim Harvey <tharvey@gateworks.com>
 
 --- a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
 +++ b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
-@@ -1344,6 +1344,54 @@ static int bgx_init_phy(struct bgx *bgx)
+@@ -56,6 +56,7 @@ struct bgx {
+ 	bool                    is_dlm;
+ 	bool                    is_rgx;
+ 	int			phy_mode;
++	char			irq_name[7];
+ };
+ 
+ static struct bgx *bgx_vnic[MAX_BGX_THUNDER];
+@@ -1344,6 +1345,53 @@ static int bgx_init_phy(struct bgx *bgx)
  	return bgx_init_of_phy(bgx);
  }
  
@@ -49,7 +57,6 @@ Signed-off-by: Tim Harvey <tharvey@gateworks.com>
 +	struct bgx *bgx = pci_get_drvdata(pdev);
 +	struct device *dev = &pdev->dev;
 +	int num_vec, ret;
-+	char irq_name[32];
 +
 +	/* Enable MSI-X */
 +	num_vec = pci_msix_vec_count(pdev);
@@ -58,9 +65,9 @@ Signed-off-by: Tim Harvey <tharvey@gateworks.com>
 +		dev_err(dev, "Req for #%d msix vectors failed\n", num_vec);
 +		return 1;
 +	}
-+	sprintf(irq_name, "BGX%d", bgx->bgx_id);
++	sprintf(bgx->irq_name, "BGX%d", bgx->bgx_id);
 +	ret = request_irq(pci_irq_vector(pdev, GMPX_GMI_TX_INT),
-+		bgx_intr_handler, 0, irq_name, bgx);
++		bgx_intr_handler, 0, bgx->irq_name, bgx);
 +	if (ret)
 +		return 1;
 +