[PATCH 1/3] VFIO V4: export pci_user_{read,write}_config

From: Tom Lyon
Date: Wed Sep 22 2010 - 17:18:11 EST



Signed-off-by: Tom Lyon <pugs@xxxxxxxxx>
---
drivers/pci/access.c | 6 ++++--
drivers/pci/pci.h | 7 -------
include/linux/pci.h | 8 ++++++++
3 files changed, 12 insertions(+), 9 deletions(-)

diff --git a/drivers/pci/access.c b/drivers/pci/access.c
index 531bc69..96ed449 100644
--- a/drivers/pci/access.c
+++ b/drivers/pci/access.c
@@ -157,7 +157,8 @@ int pci_user_read_config_##size \
raw_spin_unlock_irq(&pci_lock); \
*val = (type)data; \
return ret; \
-}
+} \
+EXPORT_SYMBOL_GPL(pci_user_read_config_##size);

#define PCI_USER_WRITE_CONFIG(size,type) \
int pci_user_write_config_##size \
@@ -171,7 +172,8 @@ int pci_user_write_config_##size \
pos, sizeof(type), val); \
raw_spin_unlock_irq(&pci_lock); \
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 f8077b3..76c3ed3 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -67,13 +67,6 @@ 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 f26fda7..36eacbf 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -754,6 +754,14 @@ static inline int pci_write_config_dword(struct pci_dev *dev, int where,
return pci_bus_write_config_dword(dev->bus, dev->devfn, where, val);
}

+/* user-space driven config access */
+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);
+
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);
--
1.6.0.2

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