4 files changed, 0 insertions, 79 deletions

diff --git a/arch/i386/kernel/setup.c b/arch/i386/kernel/setup.c
index f1682206d304..345ffb7d904d 100644
--- a/arch/i386/kernel/setup.c
+++ b/arch/i386/kernel/setup.c
@@ -956,38 +956,6 @@ efi_memory_present_wrapper(unsigned long start, unsigned long end, void *arg)
         return 0;
 }
 
- /*
-  * This function checks if the entire range <start,end> is mapped with type.
-  *
-  * Note: this function only works correct if the e820 table is sorted and
-  * not-overlapping, which is the case
-  */
-int __init
-e820_all_mapped(unsigned long s, unsigned long e, unsigned type)
-{
-        u64 start = s;
-        u64 end = e;
-        int i;
-        for (i = 0; i < e820.nr_map; i++) {
-                struct e820entry *ei = &e820.map[i];
-                if (type && ei->type != type)
-                        continue;
-                /* is the region (part) in overlap with the current region ?*/
-                if (ei->addr >= end || ei->addr + ei->size <= start)
-                        continue;
-                /* if the region is at the beginning of <start,end> we move
-                 * start to the end of the region since it's ok until there
-                 */
-                if (ei->addr <= start)
-                        start = ei->addr + ei->size;
-                /* if start is now at or beyond end, we're done, full
-                 * coverage */
-                if (start >= end)
-                        return 1; /* we're done */
-        }
-        return 0;
-}
-
 /*
  * Find the highest page frame number we have available
  */
diff --git a/arch/i386/pci/mmconfig.c b/arch/i386/pci/mmconfig.c
index 972180f738d9..5effb2e663ed 100644
--- a/arch/i386/pci/mmconfig.c
+++ b/arch/i386/pci/mmconfig.c
@@ -198,15 +198,6 @@ void __init pci_mmcfg_init(void)
             (pci_mmcfg_config[0].base_address == 0))
                 return;
 
-        if (!e820_all_mapped(pci_mmcfg_config[0].base_address,
-                        pci_mmcfg_config[0].base_address + MMCONFIG_APER_MIN,
-                        E820_RESERVED)) {
-                printk(KERN_ERR "PCI: BIOS Bug: MCFG area at %x is not E820-reserved\n",
-                                pci_mmcfg_config[0].base_address);
-                printk(KERN_ERR "PCI: Not using MMCONFIG.\n");
-                return;
-        }
-
         printk(KERN_INFO "PCI: Using MMCONFIG\n");
         raw_pci_ops = &pci_mmcfg;
         pci_probe = (pci_probe & ~PCI_PROBE_MASK) | PCI_PROBE_MMCONF;
diff --git a/arch/x86_64/kernel/e820.c b/arch/x86_64/kernel/e820.c
index e56c2adf57a4..d81e3d6dd241 100644
--- a/arch/x86_64/kernel/e820.c
+++ b/arch/x86_64/kernel/e820.c
@@ -104,35 +104,6 @@ e820_any_mapped(unsigned long start, unsigned long end, unsigned type)
         return 0;
 }
 
-/*
- * This function checks if the entire range <start,end> is mapped with type.
- *
- * Note: this function only works correct if the e820 table is sorted and
- * not-overlapping, which is the case
- */
-int __init e820_all_mapped(unsigned long start, unsigned long end, unsigned type)
-{
-        int i;
-        for (i = 0; i < e820.nr_map; i++) {
-                struct e820entry *ei = &e820.map[i];
-                if (type && ei->type != type)
-                        continue;
-                /* is the region (part) in overlap with the current region ?*/
-                if (ei->addr >= end || ei->addr + ei->size <= start)
-                        continue;
-
-                /* if the region is at the beginning of <start,end> we move
-                 * start to the end of the region since it's ok until there
-                 */
-                if (ei->addr <= start)
-                        start = ei->addr + ei->size;
-                /* if start is now at or beyond end, we're done, full coverage */
-                if (start >= end)
-                        return 1; /* we're done */
-        }
-        return 0;
-}
-
 /* 
  * Find a free area in a specific range. 
  */ 
diff --git a/arch/x86_64/pci/mmconfig.c b/arch/x86_64/pci/mmconfig.c
index 3c55c76c6fd5..8a4a0f9263ce 100644
--- a/arch/x86_64/pci/mmconfig.c
+++ b/arch/x86_64/pci/mmconfig.c
@@ -177,15 +177,6 @@ void __init pci_mmcfg_init(void)
             (pci_mmcfg_config[0].base_address == 0))
                 return;
 
-        if (!e820_all_mapped(pci_mmcfg_config[0].base_address,
-                        pci_mmcfg_config[0].base_address + MMCONFIG_APER_MIN,
-                        E820_RESERVED)) {
-                printk(KERN_ERR "PCI: BIOS Bug: MCFG area at %x is not E820-reserved\n",
-                                pci_mmcfg_config[0].base_address);
-                printk(KERN_ERR "PCI: Not using MMCONFIG.\n");
-                return;
-        }
-
         /* RED-PEN i386 doesn't do _nocache right now */
         pci_mmcfg_virt = kmalloc(sizeof(*pci_mmcfg_virt) * pci_mmcfg_config_num, GFP_KERNEL);
         if (pci_mmcfg_virt == NULL) {