debug lk

hc

2024-02-20 e636c8d336489bf3eed5878299e6cc045bbad077

 kernel/drivers/xen/xen-pciback/xenbus.c
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@@ -105,13 +105,13 @@
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 }
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 static int xen_pcibk_do_attach(struct xen_pcibk_device *pdev, int gnt_ref,
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-			     int remote_evtchn)
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+			     evtchn_port_t remote_evtchn)
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 {
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 	int err = 0;
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 	void *vaddr;
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 	dev_dbg(&pdev->xdev->dev,
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-		"Attaching to frontend resources - gnt_ref=%d evtchn=%d\n",
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+		"Attaching to frontend resources - gnt_ref=%d evtchn=%u\n",
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 		gnt_ref, remote_evtchn);
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 	err = xenbus_map_ring_valloc(pdev->xdev, &gnt_ref, 1, &vaddr);
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@@ -142,7 +142,8 @@
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 static int xen_pcibk_attach(struct xen_pcibk_device *pdev)
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 {
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 	int err = 0;
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-	int gnt_ref, remote_evtchn;
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+	int gnt_ref;
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+	evtchn_port_t remote_evtchn;
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 	char *magic = NULL;
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@@ -547,7 +548,7 @@
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 		xenbus_switch_state(xdev, XenbusStateClosed);
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 		if (xenbus_dev_is_online(xdev))
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 			break;
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-		/* fall through if not online */
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+		fallthrough;	/* if not online */
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 	case XenbusStateUnknown:
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 		dev_dbg(&xdev->dev, "frontend is gone! unregister device\n");
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 		device_unregister(&xdev->dev);
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@@ -709,7 +710,7 @@
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 	/* We need to force a call to our callback here in case
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 	 * xend already configured us!
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 	 */
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-	xen_pcibk_be_watch(&pdev->be_watch, NULL, 0);
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+	xen_pcibk_be_watch(&pdev->be_watch, NULL, NULL);
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 out:
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 	return err;