[x86] remove uses of magic macros for boot_params access

Instead of using magic macros for boot_params access, simply use the
boot_params structure.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

1 files changed, 12 insertions, 7 deletions

diff --git a/arch/x86/kernel/e820_64.c b/arch/x86/kernel/e820_64.c
index 0f4d5e209e9b..e422b8159f69 100644
--- a/arch/x86/kernel/e820_64.c
+++ b/arch/x86/kernel/e820_64.c
@@ -24,7 +24,7 @@
 #include <asm/page.h>
 #include <asm/e820.h>
 #include <asm/proto.h>
-#include <asm/bootsetup.h>
+#include <asm/setup.h>
 #include <asm/sections.h>
 
 struct e820map e820;
@@ -68,10 +68,15 @@ static inline int bad_addr(unsigned long *addrp, unsigned long size)
 
         /* initrd */ 
 #ifdef CONFIG_BLK_DEV_INITRD
-        if (LOADER_TYPE && INITRD_START && last >= INITRD_START && 
-            addr < INITRD_START+INITRD_SIZE) { 
-                *addrp = PAGE_ALIGN(INITRD_START + INITRD_SIZE);
-                return 1;
+        if (boot_params.hdr.type_of_loader && boot_params.hdr.ramdisk_image) {
+                unsigned long ramdisk_image = boot_params.hdr.ramdisk_image;
+                unsigned long ramdisk_size  = boot_params.hdr.ramdisk_size;
+                unsigned long ramdisk_end   = ramdisk_image+ramdisk_size;
+
+                if (last >= ramdisk_image && addr < ramdisk_end) {
+                        *addrp = PAGE_ALIGN(ramdisk_end);
+                        return 1;
+                }
         } 
 #endif
         /* kernel code */
@@ -594,8 +599,8 @@ void __init setup_memory_region(void)
          * Otherwise fake a memory map; one section from 0k->640k,
          * the next section from 1mb->appropriate_mem_k
          */
-        sanitize_e820_map(E820_MAP, &E820_MAP_NR);
-        if (copy_e820_map(E820_MAP, E820_MAP_NR) < 0)
+        sanitize_e820_map(boot_params.e820_map, &boot_params.e820_entries);
+        if (copy_e820_map(boot_params.e820_map, boot_params.e820_entries) < 0)
                 early_panic("Cannot find a valid memory map");
         printk(KERN_INFO "BIOS-provided physical RAM map:\n");
         e820_print_map("BIOS-e820");