[patch 25/39] PCI/MSI: Move pci_free_irq_vectors() to api.c

Thomas Gleixner
2022-11-11T13:57:15Z

From: Ahmed S. Darwish <darwi@linutronix.de>

To distangle the maze in msi.c, all exported device-driver MSI APIs are
now to be grouped in one file, api.c.

Move pci_free_irq_vectors() and make its kernel-doc comprehensive.

Signed-off-by: Ahmed S. Darwish <darwi@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

---
drivers/pci/msi/api.c | 15 +++++++++++++++
drivers/pci/msi/msi.c | 13 -------------
2 files changed, 15 insertions(+), 13 deletions(-)
---
diff --git a/drivers/pci/msi/api.c b/drivers/pci/msi/api.c
index 0f1ec87e3f9f..2ff2a9ccfc47 100644
--- a/drivers/pci/msi/api.c
+++ b/drivers/pci/msi/api.c
@@ -205,3 +205,18 @@ int pci_irq_vector(struct pci_dev *dev, unsigned int nr)
return irq ? irq : -EINVAL;
}
EXPORT_SYMBOL(pci_irq_vector);
+
+/**
+ * pci_free_irq_vectors() - Free previously allocated IRQs for a device
+ * @dev: the PCI device to operate on
+ *
+ * Undo the interrupt vector allocations and possible device MSI/MSI-X
+ * enablement earlier done through pci_alloc_irq_vectors_affinity() or
+ * pci_alloc_irq_vectors().
+ */
+void pci_free_irq_vectors(struct pci_dev *dev)
+{
+ pci_disable_msix(dev);
+ pci_disable_msi(dev);
+}
+EXPORT_SYMBOL(pci_free_irq_vectors);
diff --git a/drivers/pci/msi/msi.c b/drivers/pci/msi/msi.c
index 38ad2fe4b85c..ed8caf5ac99f 100644
--- a/drivers/pci/msi/msi.c
+++ b/drivers/pci/msi/msi.c
@@ -887,19 +887,6 @@ int __pci_enable_msix_range(struct pci_dev *dev,
}

/**
- * pci_free_irq_vectors - free previously allocated IRQs for a device
- * @dev: PCI device to operate on
- *
- * Undoes the allocations and enabling in pci_alloc_irq_vectors().
- */
-void pci_free_irq_vectors(struct pci_dev *dev)
-{
- pci_disable_msix(dev);
- pci_disable_msi(dev);
-}
-EXPORT_SYMBOL(pci_free_irq_vectors);
-
-/**
* pci_irq_get_affinity - return the affinity of a particular MSI vector
* @dev: PCI device to operate on
* @nr: device-relative interrupt vector index (0-based).