Merge branch 'pci/misc'

- Fix documentation typos (Shawn Lin)

- Add struct p2pdma_provider kernel doc (Leon Romanovsky)

- Remove useless devres WARN_ON() (Philipp Stanner)

* pci/misc:
  PCI: Remove useless WARN_ON() from devres
  PCI/P2PDMA: Add missing struct p2pdma_provider documentation
  Documentation: PCI: Fix typos in msi-howto.rst

Author: bjorn-helgaas

Documentation/PCI/msi-howto.rst

@@ -98,7 +98,7 @@ function::
 
 which allocates up to max_vecs interrupt vectors for a PCI device.  It
 returns the number of vectors allocated or a negative error.  If the device
-has a requirements for a minimum number of vectors the driver can pass a
+has a requirement for a minimum number of vectors the driver can pass a
 min_vecs argument set to this limit, and the PCI core will return -ENOSPC
 if it can't meet the minimum number of vectors.
 
@@ -127,7 +127,7 @@ not be able to allocate as many vectors for MSI as it could for MSI-X.  On
 some platforms, MSI interrupts must all be targeted at the same set of CPUs
 whereas MSI-X interrupts can all be targeted at different CPUs.
 
-If a device supports neither MSI-X or MSI it will fall back to a single
+If a device supports neither MSI-X nor MSI it will fall back to a single
 legacy IRQ vector.
 
 The typical usage of MSI or MSI-X interrupts is to allocate as many vectors
@@ -203,7 +203,7 @@ How to tell whether MSI/MSI-X is enabled on a device
 ----------------------------------------------------
 
 Using 'lspci -v' (as root) may show some devices with "MSI", "Message
-Signalled Interrupts" or "MSI-X" capabilities.  Each of these capabilities
+Signaled Interrupts" or "MSI-X" capabilities.  Each of these capabilities
 has an 'Enable' flag which is followed with either "+" (enabled)
 or "-" (disabled).
 

drivers/pci/devres.c

@@ -469,9 +469,6 @@ static int pcim_add_mapping_to_legacy_table(struct pci_dev *pdev,
 	if (!legacy_iomap_table)
 		return -ENOMEM;
 
-	/* The legacy mechanism doesn't allow for duplicate mappings. */
-	WARN_ON(legacy_iomap_table[bar]);
-
 	legacy_iomap_table[bar] = mapping;
 
 	return 0;

include/linux/pci-p2pdma.h

@@ -20,6 +20,8 @@ struct scatterlist;
  * struct p2pdma_provider
  *
  * A p2pdma provider is a range of MMIO address space available to the CPU.
+ * @owner: Device to which this provider belongs.
+ * @bus_offset: Bus offset for p2p communication.
  */
 struct p2pdma_provider {
 	struct device *owner;