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/arch/x86/kernel/tls.c b/arch/x86/kernel/tls.c
index 74d2b65..98f428b 100644
--- a/arch/x86/kernel/tls.c
+++ b/arch/x86/kernel/tls.c
@@ -112,7 +112,7 @@
memset(&info, 0, sizeof(struct user_desc));
info.entry_number = idx;
- info.base_addr = get_desc_base((void *)desc);
+ info.base_addr = get_desc_base((struct desc_struct *)desc);
info.limit = GET_LIMIT(desc);
info.seg_32bit = GET_32BIT(desc);
info.contents = GET_CONTENTS(desc);