x86: move parse_setup_data back to setup.c

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 25 insertions, 0 deletions

diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index f24a8fe8a7e4..4b00c8347bb7 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -375,6 +375,31 @@ static void __init reserve_initrd(void)
 }
 #endif /* CONFIG_BLK_DEV_INITRD */
 
+void __init parse_setup_data(void)
+{
+        struct setup_data *data;
+        u64 pa_data;
+
+        if (boot_params.hdr.version < 0x0209)
+                return;
+        pa_data = boot_params.hdr.setup_data;
+        while (pa_data) {
+                data = early_ioremap(pa_data, PAGE_SIZE);
+                switch (data->type) {
+                case SETUP_E820_EXT:
+                        parse_e820_ext(data, pa_data);
+                        break;
+                default:
+                        break;
+                }
+#ifndef CONFIG_DEBUG_BOOT_PARAMS
+                free_early(pa_data, pa_data+sizeof(*data)+data->len);
+#endif
+                pa_data = data->next;
+                early_iounmap(data, PAGE_SIZE);
+        }
+}
+
 /*
  * Determine if we were loaded by an EFI loader.  If so, then we have also been
  * passed the efi memmap, systab, etc., so we should use these data structures