Re: [PATCH v3 1/2] PCI/portdrv: add support for different MSI interrupts for PCIe port services

From: Christoph Hellwig
Date: Sun May 21 2017 - 04:32:42 EST


> + *
> + * pci_irq_vector() below is able to handle entry differently
> + * depending on MSI vs MSI-x case
> + *
> */

One more instance of this comment left :)

> pcie_capability_read_word(dev, PCI_EXP_FLAGS, &reg16);
> entry = (reg16 & PCI_EXP_FLAGS_IRQ) >> 9;
> @@ -100,7 +107,10 @@ static int pcie_port_enable_msix(struct pci_dev *dev, int *irqs, int mask)
> * MSI/MSI-X vectors assigned to the port is going to be used
> * for AER, where "For MSI-X, the value in this register
> * indicates which MSI-X Table entry is used to generate the
> - * interrupt message."
> + * interrupt message." and "For MSI, the value
> + * in this field indicates the offset between the base Message
> + * Data and the interrupt message that is generated."
> + *
> */

And while this is getting a little too deep into nitpicking: we usually
don't add empty lines to the end of comments.