linux-kernel - [PATCH v5 6/9] PCI: Expose pci_load_saved

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Date:	Wed,  3 Dec 2014 16:40:31 -0500
From:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
To:	bhelgaas@...gle.com, linux-pci@...r.kernel.org,
	linux-kernel@...r.kernel.org, xen-devel@...ts.xenproject.org,
	boris.ostrovsky@...cle.com, david.vrabel@...rix.com
Cc:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
Subject: [PATCH v5 6/9] 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.

CC: Bjorn Helgaas <bhelgaas@...gle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
---
 drivers/pci/pci.c   | 5 +++--
 include/linux/pci.h | 2 ++
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 625a4ac..f00a9d6 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -1142,8 +1142,8 @@ 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,
-				struct pci_saved_state *state)
+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,
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 5be8db4..08088cb1 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1003,6 +1003,8 @@ 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);
-- 
1.9.3

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