Commit 7112158d authored Dec 06, 2021 by Thomas Gleixner

PCI/MSI: Make msix_update_entries() smarter



No need to walk the descriptors and check for each one whether the entries
pointer function argument is NULL. Do it once.

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/20211206210224.600351129@linutronix.de

parent 29a03ada

drivers/pci/msi.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -642,8 +642,8 @@ static void msix_update_entries(struct pci_dev dev, struct msix_entry entries)
		{
		struct msi_desc *entry;

		for_each_pci_msi_entry(entry, dev) {
		if (entries) {
		for_each_pci_msi_entry(entry, dev) {
		entries->vector = entry->irq;
		entries++;
		}