From f0ab00174eb7574732737fc0734d4b406aed6231 Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bhelgaas@google.com>
Date: Mon, 2 Aug 2021 17:17:28 -0500
Subject: [PATCH] PCI: Make saved capability state private to core
Git-commit: f0ab00174eb7574732737fc0734d4b406aed6231
References: git-fixes
Patch-mainline: v5.15-rc1

Interfaces and structs for saving and restoring PCI Capability state were
declared in include/linux/pci.h, but aren't needed outside drivers/pci/.

Move these to drivers/pci/pci.h:

  struct pci_cap_saved_data
  struct pci_cap_saved_state
  void pci_allocate_cap_save_buffers()
  void pci_free_cap_save_buffers()
  int pci_add_cap_save_buffer()
  int pci_add_ext_cap_save_buffer()
  struct pci_cap_saved_state *pci_find_saved_cap()
  struct pci_cap_saved_state *pci_find_saved_ext_cap()

Link: https://lore.kernel.org/r/20210802221728.1469304-1-helgaas@kernel.org
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Oliver Neukum <oneukum@suse.com>
---
 drivers/pci/pci.h   |   23 +++++++++++++++++++++--
 include/linux/pci.h |   18 ------------------
 2 files changed, 21 insertions(+), 20 deletions(-)

--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -38,6 +38,27 @@ void pci_init_reset_methods(struct pci_d
 int pci_bridge_secondary_bus_reset(struct pci_dev *dev);
 int pci_bus_error_reset(struct pci_dev *dev);
 
+struct pci_cap_saved_data {
+	u16		cap_nr;
+	bool		cap_extended;
+	unsigned int	size;
+	u32		data[];
+};
+
+struct pci_cap_saved_state {
+	struct hlist_node		next;
+	struct pci_cap_saved_data	cap;
+};
+
+void pci_allocate_cap_save_buffers(struct pci_dev *dev);
+void pci_free_cap_save_buffers(struct pci_dev *dev);
+int pci_add_cap_save_buffer(struct pci_dev *dev, char cap, unsigned int size);
+int pci_add_ext_cap_save_buffer(struct pci_dev *dev,
+				u16 cap, unsigned int size);
+struct pci_cap_saved_state *pci_find_saved_cap(struct pci_dev *dev, char cap);
+struct pci_cap_saved_state *pci_find_saved_ext_cap(struct pci_dev *dev,
+						   u16 cap);
+
 #define PCI_PM_D2_DELAY         200	/* usec; see PCIe r4.0, sec 5.9.1 */
 #define PCI_PM_D3HOT_WAIT       10	/* msec */
 #define PCI_PM_D3COLD_WAIT      100	/* msec */
@@ -101,8 +122,6 @@ void pci_pm_init(struct pci_dev *dev);
 void pci_ea_init(struct pci_dev *dev);
 void pci_msi_init(struct pci_dev *dev);
 void pci_msix_init(struct pci_dev *dev);
-void pci_allocate_cap_save_buffers(struct pci_dev *dev);
-void pci_free_cap_save_buffers(struct pci_dev *dev);
 bool pci_bridge_d3_possible(struct pci_dev *dev);
 void pci_bridge_d3_update(struct pci_dev *dev);
 void pci_bridge_wait_for_secondary_bus(struct pci_dev *dev);
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -294,18 +294,6 @@ enum pci_bus_speed {
 enum pci_bus_speed pcie_get_speed_cap(struct pci_dev *dev);
 enum pcie_link_width pcie_get_width_cap(struct pci_dev *dev);
 
-struct pci_cap_saved_data {
-	u16		cap_nr;
-	bool		cap_extended;
-	unsigned int	size;
-	u32		data[];
-};
-
-struct pci_cap_saved_state {
-	struct hlist_node		next;
-	struct pci_cap_saved_data	cap;
-};
-
 struct pci_vpd {
 	struct mutex	lock;
 	unsigned int	len;
@@ -1293,12 +1281,6 @@ int pci_load_saved_state(struct pci_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);
-struct pci_cap_saved_state *pci_find_saved_ext_cap(struct pci_dev *dev,
-						   u16 cap);
-int pci_add_cap_save_buffer(struct pci_dev *dev, char cap, unsigned int size);
-int pci_add_ext_cap_save_buffer(struct pci_dev *dev,
-				u16 cap, unsigned int size);
 int pci_platform_power_transition(struct pci_dev *dev, pci_power_t state);
 int pci_set_power_state(struct pci_dev *dev, pci_power_t state);
 pci_power_t pci_choose_state(struct pci_dev *dev, pm_message_t state);