[IA64] Fix __{in,out}s{w,l} to handle unaligned data

Some ia64 systems produce several repeats of kernel messages like this:

kernel unaligned access to 0xe000000644220466, ip=0xa000000100516fa1

This was tracked to ide code using the __cmd[] field in "struct request"
via the __outsw() function. __cmd[] is a char array, so is not guaranteed
to be properly aligned when accessed as words.

Tested-by: Nishanth Aravamudan <[e-mail]>
Signed-off-by: James Bottomley <[e-mail]>
Signed-off-by: Tony Luck <[e-mail]>

arch/ia64/include/asm/io.h

···
  * Copyright (C) 1999 Don Dugger <[e-mail]>
  */
 
+#include <asm/unaligned.h>
+
 /* We don't use IO slowdowns on the ia64, but.. */
 #define __SLOW_DOWN_IO	do { } while (0)
 #define SLOW_DOWN_IO	do { } while (0)
···
 	unsigned short *dp = dst;
 
 	while (count--)
-		*dp++ = platform_inw(port);
+		put_unaligned(platform_inw(port), dp++);
 }
 
 static inline void
···
 	unsigned int *dp = dst;
 
 	while (count--)
-		*dp++ = platform_inl(port);
+		put_unaligned(platform_inl(port), dp++);
 }
 
 static inline void
···
 	const unsigned short *sp = src;
 
 	while (count--)
-		platform_outw(*sp++, port);
+		platform_outw(get_unaligned(sp++), port);
 }
 
 static inline void
···
 	const unsigned int *sp = src;
 
 	while (count--)
-		platform_outl(*sp++, port);
+		platform_outl(get_unaligned(sp++), port);
 }
 
 /*