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	dev = adapter->pdev;			dev = adapter->pdev;

	ctx = device_get_sysctl_ctx(dev);			ctx = device_get_sysctl_ctx(dev);
	tree = device_get_sysctl_tree(dev);			tree = device_get_sysctl_tree(dev);
	child = SYSCTL_CHILDREN(tree);			child = SYSCTL_CHILDREN(tree);

	/* Tuneable number of buffers in the buf-ring (drbr) */			/* Tuneable number of buffers in the buf-ring (drbr) */
	SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "buf_ring_size", CTLTYPE_INT \|			SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "buf_ring_size",
	CTLFLAG_RW, adapter, 0, ena_sysctl_buf_ring_size, "I",			CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, adapter, 0,
				ena_sysctl_buf_ring_size, "I",
	"Size of the bufring");			"Size of the bufring");

	/* Tuneable number of Rx ring size */			/* Tuneable number of Rx ring size */
	SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "rx_queue_size", CTLTYPE_INT \|			SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "rx_queue_size",
	CTLFLAG_RW, adapter, 0, ena_sysctl_rx_queue_size, "I",			CTLTYPE_INT \| CTLFLAG_RW \| CTLFLAG_NEEDGIANT, adapter, 0,
				ena_sysctl_rx_queue_size, "I",
	"Size of the Rx ring. The size should be a power of 2. "			"Size of the Rx ring. The size should be a power of 2. "
	"Max value is 8K");			"Max value is 8K");
	}			}


	static int			static int
	ena_sysctl_buf_ring_size(SYSCTL_HANDLER_ARGS)			ena_sysctl_buf_ring_size(SYSCTL_HANDLER_ARGS)
	{			{
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