[tip: irq/msi] PCI/sysfs: Use pci_irq_vector()

tip-bot2 for Thomas Gleixner
2021-12-09T16:07:43Z

The following commit has been merged into the irq/msi branch of tip:

Commit-ID: 793c5006769d77b8148236bc124b75e391110531
Gitweb: https://git.kernel.org/tip/793c5006769d77b8148236bc124b75e391110531
Author: Thomas Gleixner <tglx@linutronix.de>
AuthorDate: Mon, 06 Dec 2021 23:27:36 +01:00
Committer: Thomas Gleixner <tglx@linutronix.de>
CommitterDate: Thu, 09 Dec 2021 11:52:21 +01:00

PCI/sysfs: Use pci_irq_vector()

instead of fiddling with MSI descriptors.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://lore.kernel.org/r/20211206210224.265589103@linutronix.de

---
drivers/pci/pci-sysfs.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index cfe2f85..602f0fb 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -62,11 +62,8 @@ static ssize_t irq_show(struct device *dev,
* For MSI, show the first MSI IRQ; for all other cases including
* MSI-X, show the legacy INTx IRQ.
*/
- if (pdev->msi_enabled) {
- struct msi_desc *desc = first_pci_msi_entry(pdev);
-
- return sysfs_emit(buf, "%u\n", desc->irq);
- }
+ if (pdev->msi_enabled)
+ return sysfs_emit(buf, "%u\n", pci_irq_vector(pdev, 0));
#endif

return sysfs_emit(buf, "%u\n", pdev->irq);