e6cc6f1755
pci_msix_free_irq() is used to free an interrupt on a PCI/MSI-X interrupt domain. The API description specifies that the interrupt to be freed was allocated via pci_msix_alloc_irq_at(). This description limits the usage of pci_msix_free_irq() since pci_msix_free_irq() can also be used to free MSI-X interrupts allocated with, for example, pci_alloc_irq_vectors(). Remove the text stating that the interrupt to be freed had to be allocated with pci_msix_alloc_irq_at(). The needed struct msi_map need not be from pci_msix_alloc_irq_at() but can be created from scratch using pci_irq_vector() to obtain the Linux IRQ number. Highlight that pci_msix_free_irq() cannot be used to disable MSI-X to guide users that, for example, pci_free_irq_vectors() remains to be needed. Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Kevin Tian <kevin.tian@intel.com> Link: https://lore.kernel.org/lkml/87r0xsd8j4.ffs@tglx Link: https://lore.kernel.org/r/4c3e7a50d6e70f408812cd7ab199c6b4b326f9de.1676408572.git.reinette.chatre@intel.com |
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| .. | ||
| Makefile | ||
| api.c | ||
| irqdomain.c | ||
| legacy.c | ||
| msi.c | ||
| msi.h | ||
| pcidev_msi.c | ||