s390x build warnings from <linux/module.h>

[Arnd Bergmann]

Hi,

during 'make modules' on s390x, I see lots of warnings about 'ignoring 
changed section attributes for __ksymtab' that I have found to be the 
result of changeset 1.373.196.1, where Kai changed the defaults for module 
exports to 'no symbols exported'.

The problem is that there is a section '__ksymtab,"a"', while s390x 
requires it to be '__ksymtab,"aw"' because modules must be compiled with
'-fpic' here, unlike afaics all the other architectures.

The patch below is a workaround for the Problem and should be
correct on all architectures, but I'd prefer if there was a nicer
way to do that.

	Arnd <><

--- broken/include/linux/module.h      15 Oct 2002 07:55:01 -0000      1.8
+++ ugly/include/linux/module.h      15 Oct 2002 15:30:39 -0000
@@ -498,5 +498,9 @@
  * "export all symbols" to modutils)
  */
+#ifndef __PIC__
 __asm__(".section __ksymtab,\"a\"\n.previous");
+#else
+__asm__(".section __ksymtab,\"aw\"\n.previous");
+#endif
 #endif