[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, 7 insertions, 5 deletions

diff --git a/arch/x86/mach-default/setup.c b/arch/x86/mach-default/setup.c
index 7f635c7a2381..1bd82983986d 100644
--- a/arch/x86/mach-default/setup.c
+++ b/arch/x86/mach-default/setup.c
@@ -159,16 +159,18 @@ char * __init machine_specific_memory_setup(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) {
                 unsigned long mem_size;
 
                 /* compare results from other methods and take the greater */
-                if (ALT_MEM_K < EXT_MEM_K) {
-                        mem_size = EXT_MEM_K;
+                if (boot_params.alt_mem_k
+                    < boot_params.screen_info.ext_mem_k) {
+                        mem_size = boot_params.screen_info.ext_mem_k;
                         who = "BIOS-88";
                 } else {
-                        mem_size = ALT_MEM_K;
+                        mem_size = boot_params.alt_mem_k;
                         who = "BIOS-e801";
                 }