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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
This commit is contained in:
Thomas Gleixner 2021-12-06 23:27:46 +01:00
parent 29a03ada4a
commit 7112158d97
1 changed files with 2 additions and 2 deletions
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4
drivers/pci/msi.c
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@ -642,8 +642,8 @@ static void msix_update_entries(struct pci_dev *dev, struct msix_entry *entries)
{ {
struct msi_desc *entry; struct msi_desc *entry;
for_each_pci_msi_entry(entry, dev) { if (entries) {
if (entries) { for_each_pci_msi_entry(entry, dev) {
entries->vector = entry->irq; entries->vector = entry->irq;
entries++; entries++;
} }