remove __attribute_used__

Remove the deprecated __attribute_used__.

[Introduce __section in a few places to silence checkpatch /sam]

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
diff --git a/include/asm-x86/thread_info_32.h b/include/asm-x86/thread_info_32.h
index ef58fd2..a516e91 100644
--- a/include/asm-x86/thread_info_32.h
+++ b/include/asm-x86/thread_info_32.h
@@ -85,7 +85,7 @@
 
 
 /* how to get the current stack pointer from C */
-register unsigned long current_stack_pointer asm("esp") __attribute_used__;
+register unsigned long current_stack_pointer asm("esp") __used;
 
 /* how to get the thread information struct from C */
 static inline struct thread_info *current_thread_info(void)