Re: [patch V3 01/35] PCI/MSI: Set pci_dev::msi[x]_enabled early

On Fri, Dec 10, 2021 at 11:18:44PM +0100, Thomas Gleixner wrote:

There are quite some places which retrieve the first MSI descriptor to
evaluate whether the setup is for MSI or MSI-X. That's required because
pci_dev::msi[x]_enabled is only set when the setup completed successfully.

There is no real reason why msi[x]_enabled can't be set at the beginning of
the setup sequence and cleared in case of a failure.

Implement that so the MSI descriptor evaluations can be converted to simple
property queries.

Signed-off-by: Thomas Gleixner <redacted>
---
V3: New patch
---
 drivers/pci/msi/msi.c |   23 +++++++++++++++++------
 1 file changed, 17 insertions(+), 6 deletions(-)

Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>

Jason