diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/pci-epf.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/pci-epf.h b/include/linux/pci-epf.h index 704e1dc8b30a..226f3e59cf60 100644 --- a/include/linux/pci-epf.h +++ b/include/linux/pci-epf.h @@ -163,7 +163,8 @@ enum pci_epf_doorbell_type { * For MSI-backed doorbells this is the MSI message, while for * "embedded" doorbells this represents an MMIO write that asserts * an interrupt on the EP side. - * @virq: IRQ number of this doorbell message + * @virq: IRQ number of this doorbell message. Multiple messages may use the + * same IRQ; consumers must request each distinct IRQ only once. * @irq_flags: Required flags for request_irq()/request_threaded_irq(). * Callers may OR-in additional flags (e.g. IRQF_ONESHOT). * @type: Doorbell type. |