Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
Merge tag 'irq-urgent-2024-12-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fix from Ingo Molnar:
"Fix bogus MSI IRQ setup warning on RISC-V"
* tag 'irq-urgent-2024-12-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
PCI/MSI: Handle lack of irqdomain gracefully
+9
-2
+5
-2
drivers/pci/msi/irqdomain.c
+5
-2
drivers/pci/msi/irqdomain.c
···
350
350
351
351
domain = dev_get_msi_domain(&pdev->dev);
352
352
353
-
if (!domain || !irq_domain_is_hierarchy(domain))
354
-
return mode == ALLOW_LEGACY;
353
+
if (!domain || !irq_domain_is_hierarchy(domain)) {
354
+
if (IS_ENABLED(CONFIG_PCI_MSI_ARCH_FALLBACKS))
355
+
return mode == ALLOW_LEGACY;
356
+
return false;
357
+
}
355
358
356
359
if (!irq_domain_is_msi_parent(domain)) {
357
360
/*
+4
drivers/pci/msi/msi.c
+4
drivers/pci/msi/msi.c
···
433
433
if (WARN_ON_ONCE(dev->msi_enabled))
434
434
return -EINVAL;
435
435
436
+
/* Test for the availability of MSI support */
437
+
if (!pci_msi_domain_supports(dev, 0, ALLOW_LEGACY))
438
+
return -ENOTSUPP;
439
+
436
440
nvec = pci_msi_vec_count(dev);
437
441
if (nvec < 0)
438
442
return nvec;