Re: [PATCH V10 2/8] ACPI: Add new IORT functions to support MSI domain handling

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On 06.09.2016 12:20, Thomas Gleixner wrote:
On Tue, 6 Sep 2016, Tomasz Nowicki wrote:
+/**
+ * iort_get_device_domain() - Find MSI domain related to a device
+ * @dev: The device.
+ * @req_id: Requester ID for the device.
+ *
+ * Returns: the MSI domain for this device, NULL otherwise
+ */
+struct irq_domain *iort_get_device_domain(struct device *dev, u32 req_id)
+{
+	static struct fwnode_handle *handle;

static ??????

+	int its_id;
+
+	if (iort_dev_find_its_id(dev, req_id, 0, &its_id))
+		return NULL;
+
+	handle = iort_find_domain_token(its_id);

You reevaluate that on every call.


Obviously it is the bug. Thanks for spotting this.

Tomasz
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