From bb2d1b343dfe3fefb6b64c4ee5c3b7aca1fad8b9 Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <shemminger@vyatta.com>
Date: Thu, 18 Dec 2008 09:17:16 -0800
Subject: [PATCH] --- yaml --- r: 127402 b: refs/heads/master c:
 db5679437a2b938c9127480a3923633721583a4f h: refs/heads/master v: v3

---
 [refs]                     |  2 +-
 trunk/drivers/pci/access.c | 23 +++++++++++++++++++++++
 trunk/include/linux/pci.h  |  1 +
 3 files changed, 25 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index 33e8b9ce3b15..95b72a92713d 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 287d19ce2e67c15e79a187b3bdcbbea1a0a51a7d
+refs/heads/master: db5679437a2b938c9127480a3923633721583a4f
diff --git a/trunk/drivers/pci/access.c b/trunk/drivers/pci/access.c
index 86ec4ad44bcd..381444794778 100644
--- a/trunk/drivers/pci/access.c
+++ b/trunk/drivers/pci/access.c
@@ -339,6 +339,29 @@ int pci_vpd_pci22_init(struct pci_dev *dev)
 	return 0;
 }
 
+/**
+ * pci_vpd_truncate - Set available Vital Product Data size
+ * @dev:	pci device struct
+ * @size:	available memory in bytes
+ *
+ * Adjust size of available VPD area.
+ */
+int pci_vpd_truncate(struct pci_dev *dev, size_t size)
+{
+	if (!dev->vpd)
+		return -EINVAL;
+
+	/* limited by the access method */
+	if (size > dev->vpd->len)
+		return -EINVAL;
+
+	dev->vpd->len = size;
+	dev->vpd->attr->size = size;
+
+	return 0;
+}
+EXPORT_SYMBOL(pci_vpd_truncate);
+
 /**
  * pci_block_user_cfg_access - Block userspace PCI config reads/writes
  * @dev:	pci device struct
diff --git a/trunk/include/linux/pci.h b/trunk/include/linux/pci.h
index 76079e106895..7cbecef19bb6 100644
--- a/trunk/include/linux/pci.h
+++ b/trunk/include/linux/pci.h
@@ -690,6 +690,7 @@ int pci_bus_find_capability(struct pci_bus *bus, unsigned int devfn, int cap);
 /* Vital product data routines */
 ssize_t pci_read_vpd(struct pci_dev *dev, loff_t pos, size_t count, void *buf);
 ssize_t pci_write_vpd(struct pci_dev *dev, loff_t pos, size_t count, const void *buf);
+int pci_vpd_truncate(struct pci_dev *dev, size_t size);
 
 /* Helper functions for low-level code (drivers/pci/setup-[bus,res].c) */
 void pci_bus_assign_resources(struct pci_bus *bus);