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PCI/MSI: Simplify msi_verify_entries()

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No point in looping over all entries when 64bit addressing mode is enabled
for nothing.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://lore.kernel.org/r/20210729222542.992849326@linutronix.de
This commit is contained in:
Thomas Gleixner 2021-07-29 23:51:52 +02:00
parent 3998527d2e
commit a6e8b94650
1 changed files with 4 additions and 1 deletions
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5
drivers/pci/msi.c
View file

@ -613,8 +613,11 @@ static int msi_verify_entries(struct pci_dev *dev)
{
struct msi_desc *entry;
if (!dev->no_64bit_msi)
return 0;
for_each_pci_msi_entry(entry, dev) {
if (entry->msg.address_hi && dev->no_64bit_msi) {
if (entry->msg.address_hi) {
pci_err(dev, "arch assigned 64-bit MSI address %#x%08x but device only supports 32 bits\n",
entry->msg.address_hi, entry->msg.address_lo);
return -EIO;