8 files changed, 27 insertions, 36 deletions

diff --git a/drivers/char/agp/agp.h b/drivers/char/agp/agp.h
index 3c623b67ea1c..8b3317fd46c9 100644
--- a/drivers/char/agp/agp.h
+++ b/drivers/char/agp/agp.h
@@ -117,7 +117,7 @@ struct agp_bridge_driver {
 };
 
 struct agp_bridge_data {
-        struct agp_version *version;
+        const struct agp_version *version;
         struct agp_bridge_driver *driver;
         struct vm_operations_struct *vm_ops;
         void *previous_size;
diff --git a/drivers/char/agp/backend.c b/drivers/char/agp/backend.c
index 509adc403250..d59e037ddd12 100644
--- a/drivers/char/agp/backend.c
+++ b/drivers/char/agp/backend.c
@@ -44,7 +44,7 @@
  * past 0.99 at all due to some boolean logic error. */
 #define AGPGART_VERSION_MAJOR 0
 #define AGPGART_VERSION_MINOR 101
-static struct agp_version agp_current_version =
+static const struct agp_version agp_current_version =
 {
         .major = AGPGART_VERSION_MAJOR,
         .minor = AGPGART_VERSION_MINOR,
diff --git a/drivers/char/agp/efficeon-agp.c b/drivers/char/agp/efficeon-agp.c
index b788b0a3bbf3..30f730ff81c1 100644
--- a/drivers/char/agp/efficeon-agp.c
+++ b/drivers/char/agp/efficeon-agp.c
@@ -337,13 +337,6 @@ static struct agp_bridge_driver efficeon_driver = {
         .agp_destroy_page       = agp_generic_destroy_page,
 };
 
-
-static int agp_efficeon_resume(struct pci_dev *pdev)
-{
-        printk(KERN_DEBUG PFX "agp_efficeon_resume()\n");
-        return efficeon_configure();
-}
-
 static int __devinit agp_efficeon_probe(struct pci_dev *pdev,
                                      const struct pci_device_id *ent)
 {
@@ -414,11 +407,18 @@ static void __devexit agp_efficeon_remove(struct pci_dev *pdev)
         agp_put_bridge(bridge);
 }
 
+#ifdef CONFIG_PM
 static int agp_efficeon_suspend(struct pci_dev *dev, pm_message_t state)
 {
         return 0;
 }
 
+static int agp_efficeon_resume(struct pci_dev *pdev)
+{
+        printk(KERN_DEBUG PFX "agp_efficeon_resume()\n");
+        return efficeon_configure();
+}
+#endif
 
 static struct pci_device_id agp_efficeon_pci_table[] = {
         {
@@ -439,8 +439,10 @@ static struct pci_driver agp_efficeon_pci_driver = {
         .id_table       = agp_efficeon_pci_table,
         .probe          = agp_efficeon_probe,
         .remove         = agp_efficeon_remove,
+#ifdef CONFIG_PM
         .suspend        = agp_efficeon_suspend,
         .resume         = agp_efficeon_resume,
+#endif
 };
 
 static int __init agp_efficeon_init(void)
diff --git a/drivers/char/agp/frontend.c b/drivers/char/agp/frontend.c
index d9c5a9142ad1..0f2ed2aa2d81 100644
--- a/drivers/char/agp/frontend.c
+++ b/drivers/char/agp/frontend.c
@@ -151,35 +151,12 @@ static void agp_add_seg_to_client(struct agp_client *client,
         client->segments = seg;
 }
 
-/* Originally taken from linux/mm/mmap.c from the array
- * protection_map.
- * The original really should be exported to modules, or
- * some routine which does the conversion for you
- */
-
-static const pgprot_t my_protect_map[16] =
-{
-        __P000, __P001, __P010, __P011, __P100, __P101, __P110, __P111,
-        __S000, __S001, __S010, __S011, __S100, __S101, __S110, __S111
-};
-
 static pgprot_t agp_convert_mmap_flags(int prot)
 {
-#define _trans(x,bit1,bit2) \
-((bit1==bit2)?(x&bit1):(x&bit1)?bit2:0)
-
         unsigned long prot_bits;
-        pgprot_t temp;
-
-        prot_bits = _trans(prot, PROT_READ, VM_READ) |
-            _trans(prot, PROT_WRITE, VM_WRITE) |
-            _trans(prot, PROT_EXEC, VM_EXEC);
-
-        prot_bits |= VM_SHARED;
 
-        temp = my_protect_map[prot_bits & 0x0000000f];
-
-        return temp;
+        prot_bits = calc_vm_prot_bits(prot) | VM_SHARED;
+        return vm_get_page_prot(prot_bits);
 }
 
 static int agp_create_segment(struct agp_client *client, struct agp_region *region)
diff --git a/drivers/char/agp/intel-agp.c b/drivers/char/agp/intel-agp.c
index 61ac3809f997..42a1cb871992 100644
--- a/drivers/char/agp/intel-agp.c
+++ b/drivers/char/agp/intel-agp.c
@@ -1766,6 +1766,7 @@ static void __devexit agp_intel_remove(struct pci_dev *pdev)
         agp_put_bridge(bridge);
 }
 
+#ifdef CONFIG_PM
 static int agp_intel_resume(struct pci_dev *pdev)
 {
         struct agp_bridge_data *bridge = pci_get_drvdata(pdev);
@@ -1789,6 +1790,7 @@ static int agp_intel_resume(struct pci_dev *pdev)
 
         return 0;
 }
+#endif
 
 static struct pci_device_id agp_intel_pci_table[] = {
 #define ID(x)                                           \
@@ -1835,7 +1837,9 @@ static struct pci_driver agp_intel_pci_driver = {
         .id_table       = agp_intel_pci_table,
         .probe          = agp_intel_probe,
         .remove         = __devexit_p(agp_intel_remove),
+#ifdef CONFIG_PM
         .resume         = agp_intel_resume,
+#endif
 };
 
 static int __init agp_intel_init(void)
diff --git a/drivers/char/agp/via-agp.c b/drivers/char/agp/via-agp.c
index b8ec25d17478..c149ac9ce9a7 100644
--- a/drivers/char/agp/via-agp.c
+++ b/drivers/char/agp/via-agp.c
@@ -9,7 +9,7 @@
 #include <linux/agp_backend.h>
 #include "agp.h"
 
-static struct pci_device_id agp_via_pci_table[];
+static const struct pci_device_id agp_via_pci_table[];
 
 #define VIA_GARTCTRL    0x80
 #define VIA_APSIZE      0x84
@@ -485,7 +485,7 @@ static int agp_via_resume(struct pci_dev *pdev)
 #endif /* CONFIG_PM */
 
 /* must be the same order as name table above */
-static struct pci_device_id agp_via_pci_table[] = {
+static const struct pci_device_id agp_via_pci_table[] = {
 #define ID(x) \
         {                                               \
         .class          = (PCI_CLASS_BRIDGE_HOST << 8), \
diff --git a/include/linux/mm.h b/include/linux/mm.h
index f0b135cd86da..224178a000d2 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1013,6 +1013,7 @@ static inline unsigned long vma_pages(struct vm_area_struct *vma)
         return (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
 }
 
+pgprot_t vm_get_page_prot(unsigned long vm_flags);
 struct vm_area_struct *find_extend_vma(struct mm_struct *, unsigned long addr);
 struct page *vmalloc_to_page(void *addr);
 unsigned long vmalloc_to_pfn(void *addr);
diff --git a/mm/mmap.c b/mm/mmap.c
index c1868ecdbc5f..c7ed061f4507 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -60,6 +60,13 @@ pgprot_t protection_map[16] = {
         __S000, __S001, __S010, __S011, __S100, __S101, __S110, __S111
 };
 
+pgprot_t vm_get_page_prot(unsigned long vm_flags)
+{
+        return protection_map[vm_flags &
+                                (VM_READ|VM_WRITE|VM_EXEC|VM_SHARED)];
+}
+EXPORT_SYMBOL(vm_get_page_prot);
+
 int sysctl_overcommit_memory = OVERCOMMIT_GUESS;  /* heuristic overcommit */
 int sysctl_overcommit_ratio = 50;       /* default is 50% */
 int sysctl_max_map_count __read_mostly = DEFAULT_MAX_MAP_COUNT;