[PATCSET] m68k annotations and fixes

[PATCSET] m68k annotations and fixes

[Al Viro]

This series gets mainline buildable on m68k; most of these patches apply clean
to m68k CVS as well, except for two that are pulled from m68k CVS.  Usual
mix of compile fixes, fixes of gcc4-detected crap and sparse annotations.

Compared to the last time this series had been posted: fix for breakage of
console code in head.S in absense of FRAMEBUFFER_CONSOLE changed as Roman
had suggested.

Al Viro:
      m68k: compile fix - hardirq checks were in wrong place
      m68k: compile fix - updated vmlinux.lds to include LOCK_TEXT
      m68k: namespace pollution fix (custom->amiga_custom)
      m68k: switch mac/misc.c to direct use of appropriate cuda/pmu/maciisi requests
      m68k: dumb typo in atyfb
      m68k: oktagon makefile fix
      m68k: isa_{type,sex} should be exported
      m68k: fix macro syntax to make current binutils happy
      m68k: more workarounds for recent binutils idiocy
      m68k: static vs. extern in scc.h
      m68k: static vs. extern in sun3ints.h
      m68k: static vs. extern in amigaints.h
      m68k: memory input should be an lvalue (mac/misc.c)
      m68k: broken constraints on mulu.l
      m68k: bogus function argument types (sun3_pgtable.h)
      m68k: lvalues abuse in mac8390
      m68k: lvalues abuse in dmasound
      m68k: compile fixes for dmasound (static vs. extern)
      m68k: basic iomem annotations
      m68k: basic __user annotations
      m68k: signal __user annotations
      m68k: rtc __user annotations
      m68k: syscalls __user annotation
      m68k: checksum __user annotations
      m68k: amiflop __user annotations
      m68k: ataflop __user annotations, NULL noise removal
      m68k: amiserial __user annotations
      m68k: dsp56k __user annotations
      m68k: amifb __user annotations
      m68k: zorro __user annotations
      m68k: dmasound __user annotations
      m68k: NULL noise removal
      m68k: cast in strnlen switched to unsigned long
      m68k: kill mach_floppy_setup, convert to proper __setup() in drivers
      m68k: fix use of void foo(void) asm("bar") in traps.c
      m68k: fix reference to init_task in vmlinux-sun3.lds
      m68k: fix macfb init
      m68k: fix PIO case in esp
      m68k: console code in head.S needs framebuffer support built in

Kars de Jong:
      m68k: Moved initialisation of conswitchp from subarches to global arch setup (from m68k CVS)

Roman Zippel:
      m68k: dmasound_paula.c lvalues abuse (from m68k CVS)