From 73a00b002f6c0a412124f2fd280d267201e7f1f7 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Thu, 29 Jul 2021 23:51:45 +0200 Subject: [PATCH] PCI/MSI: Correct misleading comments commit 689e6b5351573c38ccf92a0dd8b3e2c2241e4aff upstream. The comments about preserving the cached state in pci_msi[x]_shutdown() are misleading as the MSI descriptors are freed right after those functions return. So there is nothing to restore. Preparatory change. Signed-off-by: Thomas Gleixner Tested-by: Marc Zyngier Reviewed-by: Marc Zyngier Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20210729222542.621609423@linutronix.de Signed-off-by: Greg Kroah-Hartman --- drivers/pci/msi.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index ebbd72f53e45..481f1a1884e6 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c @@ -919,7 +919,6 @@ void pci_msi_shutdown(struct pci_dev *dev) /* Return the device with MSI unmasked as initial states */ mask = msi_mask(desc->msi_attrib.multi_cap); - /* Keep cached state to be restored */ __pci_msi_desc_mask_irq(desc, mask, 0); /* Restore dev->irq to its default pin-assertion irq */ @@ -1021,10 +1020,8 @@ void pci_msix_shutdown(struct pci_dev *dev) return; /* Return the device with MSI-X masked as initial states */ - for_each_pci_msi_entry(entry, dev) { - /* Keep cached states to be restored */ + for_each_pci_msi_entry(entry, dev) __pci_msix_desc_mask_irq(entry, 1); - } pci_msix_clear_and_set_ctrl(dev, PCI_MSIX_FLAGS_ENABLE, 0); pci_intx_for_msi(dev, 1); -- 2.20.1