x86: fix initialization of 'l' bit in ldt descriptors

[linux-2.6-omap-h63xx.git] / include / asm-x86 / desc.h

diff --git a/include/asm-x86/desc.h b/include/asm-x86/desc.h
index 24a524f5e1a279328eb9995429603cc28eebe7b3..06f786f4b4fbdd6f912fafae47c5805045ba313b 100644 (file)
--- a/include/asm-x86/desc.h
+++ b/include/asm-x86/desc.h
@@ -24,6 +24,11 @@ static inline void fill_ldt(struct desc_struct *desc,
        desc->d = info->seg_32bit;
        desc->g = info->limit_in_pages;
        desc->base2 = (info->base_addr & 0xff000000) >> 24;
+       /*
+        * Don't allow setting of the lm bit. It is useless anyway
+        * because 64bit system calls require __USER_CS:
+        */
+       desc->l = 0;
 }
 
 extern struct desc_ptr idt_descr;