x86: modify get_desc_base
This patch makes get_desc_base() receive a struct desc_struct,
and then uses its internal fields to compute the base address.
This is done at both i386 and x86_64, and then it is moved
to common header
Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/include/asm-x86/desc.h b/include/asm-x86/desc.h
index 99c4adc..a6fdd7c 100644
--- a/include/asm-x86/desc.h
+++ b/include/asm-x86/desc.h
@@ -69,6 +69,11 @@
preempt_enable();
}
+static inline unsigned long get_desc_base(struct desc_struct *desc)
+{
+ return desc->base0 | ((desc->base1) << 16) | ((desc->base2) << 24);
+}
+
#else
/*
* GET_DESC_BASE reads the descriptor base of the specified segment.