Commit 98d9b271 authored by Konrad Rzeszutek Wilk's avatar Konrad Rzeszutek Wilk Committed by David Vrabel
Browse files

PCI: Expose pci_load_saved_state for public consumption. 



We have the pci_load_and_free_saved_state, and pci_store_saved_state
but are missing the functionality to just load the state
multiple times in the PCI device without having to free/save
the state.

This patch makes it possible to use this function.

Signed-off-by: default avatarKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: default avatarBjorn Helgaas <bhelgaas@google.com>
Signed-off-by: default avatarDavid Vrabel <david.vrabel@citrix.com>
parent c1a04339

drivers/pci/pci.c

+3 −2
Original line number Diff line number Diff line
@@ -1142,7 +1142,7 @@ EXPORT_SYMBOL_GPL(pci_store_saved_state); 
 * @dev: PCI device that we're dealing with

 * @state: Saved state returned from pci_store_saved_state()

 */

static int pci_load_saved_state(struct pci_dev *dev,

int pci_load_saved_state(struct pci_dev *dev,

			 struct pci_saved_state *state)

{

	struct pci_cap_saved_data *cap;
@@ -1171,6 +1171,7 @@ static int pci_load_saved_state(struct pci_dev *dev, 
	dev->state_saved = true;

	return 0;

}

EXPORT_SYMBOL_GPL(pci_load_saved_state);



/**

 * pci_load_and_free_saved_state - Reload the save state pointed to by state,

include/linux/pci.h

+2 −0
Original line number Diff line number Diff line
@@ -1004,6 +1004,8 @@ void __iomem __must_check *pci_platform_rom(struct pci_dev *pdev, size_t *size); 
int pci_save_state(struct pci_dev *dev);

void pci_restore_state(struct pci_dev *dev);

struct pci_saved_state *pci_store_saved_state(struct pci_dev *dev);

int pci_load_saved_state(struct pci_dev *dev,

			 struct pci_saved_state *state);

int pci_load_and_free_saved_state(struct pci_dev *dev,

				  struct pci_saved_state **state);

struct pci_cap_saved_state *pci_find_saved_cap(struct pci_dev *dev, char cap);

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