1 files changed, 19 insertions, 0 deletions

diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index e7dfcd447571..8f30736dbf3f 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -825,6 +825,19 @@ EXPORT_SYMBOL(pci_choose_state);
 #define pcie_cap_has_sltctl2(type, flags)               \
                 ((flags & PCI_EXP_FLAGS_VERS) > 1)
 
+static struct pci_cap_saved_state *pci_find_saved_cap(
+        struct pci_dev *pci_dev, char cap)
+{
+        struct pci_cap_saved_state *tmp;
+        struct hlist_node *pos;
+
+        hlist_for_each_entry(tmp, pos, &pci_dev->saved_cap_space, next) {
+                if (tmp->cap.cap_nr == cap)
+                        return tmp;
+        }
+        return NULL;
+}
+
 static int pci_save_pcie_state(struct pci_dev *dev)
 {
         int pos, i = 0;
@@ -1869,6 +1882,12 @@ void platform_pci_wakeup_init(struct pci_dev *dev)
         platform_pci_sleep_wake(dev, false);
 }
 
+static void pci_add_saved_cap(struct pci_dev *pci_dev,
+        struct pci_cap_saved_state *new_cap)
+{
+        hlist_add_head(&new_cap->next, &pci_dev->saved_cap_space);
+}
+
 /**
  * pci_add_save_buffer - allocate buffer for saving given capability registers
  * @dev: the PCI device