From d6aa37cd04fdafaf31ae89691e537535df43ca78 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Tue, 5 Nov 2019 11:30:36 +0100
Subject: PCI/PM: Avoid exporting __pci_complete_power_transition()
Git-commit: d6aa37cd04fdafaf31ae89691e537535df43ca78
Patch-mainline: v5.5-rc1
References: bsc#1152489

Notice that radeon_set_suspend(), which is the only caller of
__pci_complete_power_transition() outside of pci.c, really only
cares about the pci_platform_power_transition() invoked by it,
so export the latter instead of it, update the radeon driver to
call pci_platform_power_transition() directly and make
__pci_complete_power_transition() static.

Code rearrangement, no intentional functional impact.

Link: https://lore.kernel.org/r/1731661.ykamz2Tiuf@kreacher
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
---
 drivers/pci/pci.c                   | 6 +++---
 drivers/video/fbdev/aty/radeon_pm.c | 2 +-
 include/linux/pci.h                 | 2 +-
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 56bc79e33286..2f53234f9e91 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -963,7 +963,7 @@ void pci_refresh_power_state(struct pci_dev *dev)
  * @dev: PCI device to handle.
  * @state: State to put the device into.
  */
-static int pci_platform_power_transition(struct pci_dev *dev, pci_power_t state)
+int pci_platform_power_transition(struct pci_dev *dev, pci_power_t state)
 {
 	int error;
 
@@ -979,6 +979,7 @@ static int pci_platform_power_transition(struct pci_dev *dev, pci_power_t state)
 
 	return error;
 }
+EXPORT_SYMBOL_GPL(pci_platform_power_transition);
 
 /**
  * pci_wakeup - Wake up a PCI device
@@ -1061,7 +1062,7 @@ void pci_bus_set_current_state(struct pci_bus *bus, pci_power_t state)
  *
  * This function should not be called directly by device drivers.
  */
-int __pci_complete_power_transition(struct pci_dev *dev, pci_power_t state)
+static int __pci_complete_power_transition(struct pci_dev *dev, pci_power_t state)
 {
 	int ret;
 
@@ -1073,7 +1074,6 @@ int __pci_complete_power_transition(struct pci_dev *dev, pci_power_t state)
 		pci_bus_set_current_state(dev->subordinate, PCI_D3cold);
 	return ret;
 }
-EXPORT_SYMBOL_GPL(__pci_complete_power_transition);
 
 /**
  * pci_set_power_state - Set the power state of a PCI device
diff --git a/drivers/video/fbdev/aty/radeon_pm.c b/drivers/video/fbdev/aty/radeon_pm.c
index 2dc5703eac51..7c4483c7f313 100644
--- a/drivers/video/fbdev/aty/radeon_pm.c
+++ b/drivers/video/fbdev/aty/radeon_pm.c
@@ -2593,7 +2593,7 @@ static void radeon_set_suspend(struct radeonfb_info *rinfo, int suspend)
 		 * calling pci_set_power_state()
 		 */
 		radeonfb_whack_power_state(rinfo, PCI_D2);
-		__pci_complete_power_transition(rinfo->pdev, PCI_D2);
+		pci_platform_power_transition(rinfo->pdev, PCI_D2);
 	} else {
 		printk(KERN_DEBUG "radeonfb (%s): switching to D0 state...\n",
 		       pci_name(rinfo->pdev));
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 9b0e35e09874..86976cccdfe3 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1228,7 +1228,7 @@ struct pci_cap_saved_state *pci_find_saved_ext_cap(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);
-int __pci_complete_power_transition(struct pci_dev *dev, pci_power_t state);
+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);
 bool pci_pme_capable(struct pci_dev *dev, pci_power_t state);
-- 
2.28.0