PCI: export pci_user functions for use by other drivers

VFIO PCI support will make use of these for user-initiated
PCI config accesses.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

3 files changed, 12 insertions, 9 deletions

diff --git a/drivers/pci/access.c b/drivers/pci/access.c
index 2a581642c237..ba91a7e17519 100644
--- a/drivers/pci/access.c
+++ b/drivers/pci/access.c
@@ -162,7 +162,8 @@ int pci_user_read_config_##size						\
         if (ret > 0)                                                    \
                 ret = -EINVAL;                                          \
         return ret;                                                     \
-}
+}                                                                       \
+EXPORT_SYMBOL_GPL(pci_user_read_config_##size);
 
 /* Returns 0 on success, negative values indicate error. */
 #define PCI_USER_WRITE_CONFIG(size,type)                                \
@@ -181,7 +182,8 @@ int pci_user_write_config_##size					\
         if (ret > 0)                                                    \
                 ret = -EINVAL;                                          \
         return ret;                                                     \
-}
+}                                                                       \
+EXPORT_SYMBOL_GPL(pci_user_write_config_##size);
 
 PCI_USER_READ_CONFIG(byte, u8)
 PCI_USER_READ_CONFIG(word, u16)
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index e4943479b234..f2dcc46bdece 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -86,13 +86,6 @@ static inline bool pci_is_bridge(struct pci_dev *pci_dev)
         return !!(pci_dev->subordinate);
 }
 
-extern int pci_user_read_config_byte(struct pci_dev *dev, int where, u8 *val);
-extern int pci_user_read_config_word(struct pci_dev *dev, int where, u16 *val);
-extern int pci_user_read_config_dword(struct pci_dev *dev, int where, u32 *val);
-extern int pci_user_write_config_byte(struct pci_dev *dev, int where, u8 val);
-extern int pci_user_write_config_word(struct pci_dev *dev, int where, u16 val);
-extern int pci_user_write_config_dword(struct pci_dev *dev, int where, u32 val);
-
 struct pci_vpd_ops {
         ssize_t (*read)(struct pci_dev *dev, loff_t pos, size_t count, void *buf);
         ssize_t (*write)(struct pci_dev *dev, loff_t pos, size_t count, const void *buf);
diff --git a/include/linux/pci.h b/include/linux/pci.h
index dd7af0f37b3a..9d04599c6bd9 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -777,6 +777,14 @@ static inline int pci_write_config_dword(const struct pci_dev *dev, int where,
         return pci_bus_write_config_dword(dev->bus, dev->devfn, where, val);
 }
 
+/* user-space driven config access */
+int pci_user_read_config_byte(struct pci_dev *dev, int where, u8 *val);
+int pci_user_read_config_word(struct pci_dev *dev, int where, u16 *val);
+int pci_user_read_config_dword(struct pci_dev *dev, int where, u32 *val);
+int pci_user_write_config_byte(struct pci_dev *dev, int where, u8 val);
+int pci_user_write_config_word(struct pci_dev *dev, int where, u16 val);
+int pci_user_write_config_dword(struct pci_dev *dev, int where, u32 val);
+
 int __must_check pci_enable_device(struct pci_dev *dev);
 int __must_check pci_enable_device_io(struct pci_dev *dev);
 int __must_check pci_enable_device_mem(struct pci_dev *dev);