2 files changed, 5 insertions, 2 deletions

diff --git a/include/linux/pci.h b/include/linux/pci.h
index 9010f5458767..b7e4b633c69b 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1045,6 +1045,8 @@ void __iomem *pcim_iomap(struct pci_dev *pdev, int bar, unsigned long maxlen);
 void pcim_iounmap(struct pci_dev *pdev, void __iomem *addr);
 void __iomem * const *pcim_iomap_table(struct pci_dev *pdev);
 int pcim_iomap_regions(struct pci_dev *pdev, u16 mask, const char *name);
+int pcim_iomap_regions_request_all(struct pci_dev *pdev, u16 mask,
+                                   const char *name);
 void pcim_iounmap_regions(struct pci_dev *pdev, u16 mask);
 
 extern int pci_pci_problems;
diff --git a/include/linux/virtio.h b/include/linux/virtio.h
index 260d1fcf29a4..12c18ac1b973 100644
--- a/include/linux/virtio.h
+++ b/include/linux/virtio.h
@@ -43,8 +43,9 @@ struct virtqueue
  *      vq: the struct virtqueue we're talking about.
  * @enable_cb: restart callbacks after disable_cb.
  *      vq: the struct virtqueue we're talking about.
- *      This returns "false" (and doesn't re-enable) if there are pending
- *      buffers in the queue, to avoid a race.
+ *      This re-enables callbacks; it returns "false" if there are pending
+ *      buffers in the queue, to detect a possible race between the driver
+ *      checking for more work, and enabling callbacks.
  *
  * Locking rules are straightforward: the driver is responsible for
  * locking.  No two operations may be invoked simultaneously.