x86: Introduce GDT_ENTRY_INIT(), initialize bad_bios_desc statically

[net-next-2.6.git] / arch / x86 / kernel / apm_32.c

diff --git a/arch/x86/kernel/apm_32.c b/arch/x86/kernel/apm_32.c
index febb2dab254f31557d9b6b080b12afa725a4ed7d..39a4462ef8a7d42f0084758c28b74ce780515e6b 100644 (file)
--- a/arch/x86/kernel/apm_32.c
+++ b/arch/x86/kernel/apm_32.c
@@ -403,7 +403,15 @@ static DECLARE_WAIT_QUEUE_HEAD(apm_waitqueue);
 static DECLARE_WAIT_QUEUE_HEAD(apm_suspend_waitqueue);
 static struct apm_user *user_list;
 static DEFINE_SPINLOCK(user_list_lock);
-static struct desc_struct bad_bios_desc = GDT_ENTRY_INIT(0x4092, 0, 0);
+
+/*
+ * Set up a segment that references the real mode segment 0x40
+ * that extends up to the end of page zero (that we have reserved).
+ * This is for buggy BIOS's that refer to (real mode) segment 0x40
+ * even though they are called in protected mode.
+ */
+static struct desc_struct bad_bios_desc = GDT_ENTRY_INIT(0x4092,
+                       (unsigned long)__va(0x400UL), PAGE_SIZE - 0x400 - 1);
 
 static const char driver_version[] = "1.16ac"; /* no spaces */
 
@@ -2331,15 +2339,6 @@ static int __init apm_init(void)
        }
        pm_flags |= PM_APM;
 
-       /*
-        * Set up a segment that references the real mode segment 0x40
-        * that extends up to the end of page zero (that we have reserved).
-        * This is for buggy BIOS's that refer to (real mode) segment 0x40
-        * even though they are called in protected mode.
-        */
-       set_desc_base(&bad_bios_desc, (unsigned long)__va(0x40UL << 4));
-       set_desc_limit(&bad_bios_desc, 4095 - (0x40 << 4));
-
        /*
         * Set up the long jump entry point to the APM BIOS, which is called
         * from inline assembly.