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SubjectRe: [PATCH RFC 05/77] PCI/MSI: Convert pci_msix_table_size() to a public interface

On Wed, Oct 02, 2013 at 12:48:21PM +0200, Alexander Gordeev wrote:
> Make pci_msix_table_size() to return a error code if the device
> does not support MSI-X. This update is needed to facilitate a
> forthcoming re-design MSI/MSI-X interrupts enabling pattern.
> Device drivers will use this interface to obtain maximum number
> of MSI-X interrupts the device supports and use that value in
> the following call to pci_enable_msix() interface.
> Signed-off-by: Alexander Gordeev <>

Hmmm... I probably missed something but why is this necessary? To
discern between -EINVAL and -ENOSPC? If so, does that really matter?



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