Re: [PATCH V5 1/3] driver core: add device_has_managed_msi_irq

On Wed, Jul 21, 2021 at 05:17:21PM +0800, Ming Lei wrote:

+bool device_has_managed_msi_irq(struct device *dev)
+{
+	struct msi_desc *desc;
+
+	if (IS_ENABLED(CONFIG_GENERIC_MSI_IRQ)) {

And inline stub for the !CONFIG_GENERIC_MSI_IRQ would seem nicer
so that we don't even nee the call.

Also please add a kerneldoc comment, and as Greg said this probably
doesn't belong into drivers/base and device.h but something in the
irq layer.  Maybe Thomas has a preference.