alpha: build fixes

This fixes some of the alpha-specific build problems, except a) modpost
warning about COMMON symbol "saved_config" and b) nasty final link
failure with gcc-4.x, -Os and scsi-disk driver configured built-in
(due to jump table in .rodata referencing discarded .exit.text).

- build failure with gcc-4.2.x: fix up casts in cia_io* routines to avoid
  warnings ('discards qualifiers from pointer target type'), which are
  failures, thanks to -Werror;
- modpost warnings: add missing __init qualifier for titan and marvel;
  for non-generic build, move machine vectors from .data to .data.init.refok
  section;
- unbreak CPU-specific optimization: rearrange cpuflags-y assignments
  so that extended -mcpu value (ev56, pca56, ev67) overrides basic
  one (ev5, ev6) and not vice versa.

Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Richard Henderson <rth@twiddle.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 8 insertions, 4 deletions

diff --git a/include/asm-alpha/io_trivial.h b/include/asm-alpha/io_trivial.h
index b10d1aa4cdd1..1c77f10b4b36 100644
--- a/include/asm-alpha/io_trivial.h
+++ b/include/asm-alpha/io_trivial.h
@@ -72,25 +72,29 @@ IO_CONCAT(__IO_PREFIX,writew)(u16 b, volatile void __iomem *a)
 __EXTERN_INLINE u8
 IO_CONCAT(__IO_PREFIX,readb)(const volatile void __iomem *a)
 {
-        return IO_CONCAT(__IO_PREFIX,ioread8)((void __iomem *)a);
+        void __iomem *addr = (void __iomem *)a;
+        return IO_CONCAT(__IO_PREFIX,ioread8)(addr);
 }
 
 __EXTERN_INLINE u16
 IO_CONCAT(__IO_PREFIX,readw)(const volatile void __iomem *a)
 {
-        return IO_CONCAT(__IO_PREFIX,ioread16)((void __iomem *)a);
+        void __iomem *addr = (void __iomem *)a;
+        return IO_CONCAT(__IO_PREFIX,ioread16)(addr);
 }
 
 __EXTERN_INLINE void
 IO_CONCAT(__IO_PREFIX,writeb)(u8 b, volatile void __iomem *a)
 {
-        IO_CONCAT(__IO_PREFIX,iowrite8)(b, (void __iomem *)a);
+        void __iomem *addr = (void __iomem *)a;
+        IO_CONCAT(__IO_PREFIX,iowrite8)(b, addr);
 }
 
 __EXTERN_INLINE void
 IO_CONCAT(__IO_PREFIX,writew)(u16 b, volatile void __iomem *a)
 {
-        IO_CONCAT(__IO_PREFIX,iowrite16)(b, (void __iomem *)a);
+        void __iomem *addr = (void __iomem *)a;
+        IO_CONCAT(__IO_PREFIX,iowrite16)(b, addr);
 }
 #endif