Commit 6552e90e authored by Thomas Gleixner's avatar Thomas Gleixner
Browse files

PCI: hv: Switch MSI descriptor locking to guard() 



Convert the code to use the new guard(msi_descs_lock).

No functional change intended.

Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Reviewed-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: default avatarMichael Kelley <mhklinux@outlook.com>
Acked-by: default avatarWei Liu <wei.liu@kernel.org>
Acked-by: default avatarBjorn Helgaas <bhelgaas@google.com>
Link: https://lore.kernel.org/all/20250319105506.624838146@linutronix.de
parent 89114664

drivers/pci/controller/pci-hyperv.c

+4 −10
Original line number Diff line number Diff line
@@ -3975,24 +3975,18 @@ static int hv_pci_restore_msi_msg(struct pci_dev *pdev, void *arg) 
{

	struct irq_data *irq_data;

	struct msi_desc *entry;

	int ret = 0;



	if (!pdev->msi_enabled && !pdev->msix_enabled)

		return 0;



	msi_lock_descs(&pdev->dev);

	guard(msi_descs_lock)(&pdev->dev);

	msi_for_each_desc(entry, &pdev->dev, MSI_DESC_ASSOCIATED) {

		irq_data = irq_get_irq_data(entry->irq);

		if (WARN_ON_ONCE(!irq_data)) {

			ret = -EINVAL;

			break;

		}



		if (WARN_ON_ONCE(!irq_data))

			return -EINVAL;

		hv_compose_msi_msg(irq_data, &entry->msg);

	}

	msi_unlock_descs(&pdev->dev);



	return ret;

	return 0;

}



/*