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Commit e11ece5a authored by Yijing Wang's avatar Yijing Wang Committed by Bjorn Helgaas
Browse files

PCI/MSI: Use irq_get_msi_desc() to simplify code



Use irq_get_msi_desc() to get MSI IRQ related msi_desc directly instead of
searching the dev->msi_list.

Signed-off-by: default avatarYijing Wang <wangyijing@huawei.com>
Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
parent 0dae508a
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+5 −7
Original line number Diff line number Diff line
@@ -487,7 +487,6 @@ EXPORT_SYMBOL_GPL(pci_restore_msi_state);
static ssize_t msi_mode_show(struct device *dev, struct device_attribute *attr,
			     char *buf)
{
	struct pci_dev *pdev = to_pci_dev(dev);
	struct msi_desc *entry;
	unsigned long irq;
	int retval;
@@ -496,12 +495,11 @@ static ssize_t msi_mode_show(struct device *dev, struct device_attribute *attr,
	if (retval)
		return retval;

	list_for_each_entry(entry, &pdev->msi_list, list) {
		if (entry->irq == irq) {
	entry = irq_get_msi_desc(irq);
	if (entry)
		return sprintf(buf, "%s\n",
				entry->msi_attrib.is_msix ? "msix" : "msi");
		}
	}

	return -ENODEV;
}