alpha: fix breakage caused by df9ee29270

Commit df9ee29270 made arch_local_irq_save and arch_local_irq_restore
static inline which with -Werror trips up on __set_hae() and _set_hae()
which are extern inline.  The naive solution is to make __set_hae() and
set_hae() static inline but for reasons described in commit d559d4a24a3fe
this breaks the generic kernel build.  Instead, since this is architecture
specific code, this patch hard wires in the architecture specific method
f disabling and enabling interrupts.

Tested-by: Michael Cree <mcree@orcon.net.nz>
Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Signed-off-by: Matt Turner <mattst88@gmail.com>

diff --git a/arch/alpha/include/asm/io.h b/arch/alpha/include/asm/io.h
index eda9b909aa05e84680d7eb0fa322c5fc4177dd1f..56ff96501350a3741a5621e1ab16590ac9056ab0 100644 (file)
--- a/arch/alpha/include/asm/io.h
+++ b/arch/alpha/include/asm/io.h
@@ -37,8 +37,9 @@
  */
 extern inline void __set_hae(unsigned long new_hae)
 {
-       unsigned long flags;
-       local_irq_save(flags);
+       unsigned long flags = swpipl(IPL_MAX);
+
+       barrier();
 
        alpha_mv.hae_cache = new_hae;
        *alpha_mv.hae_register = new_hae;
@@ -46,7 +47,8 @@ extern inline void __set_hae(unsigned long new_hae)
        /* Re-read to make sure it was written.  */
        new_hae = *alpha_mv.hae_register;
 
-       local_irq_restore(flags);
+       setipl(flags);
+       barrier();
 }
 
 extern inline void set_hae(unsigned long new_hae)