[GIT pull] build fixes for less mainstream architectures

[Paul Gortmaker <paul.gortmaker@windriver.com>]

Linus,

These are fixes for frv(1), blackfin(2), powerpc(1) and xtensa(4).

Fortunately the touches are nearly all specific to files just used
by the arch in question.   The two touches to shared/common files 
[kernel/irq/debug.h and drivers/pci/Makefile] are trivial to assess
as no risk to anyone.

Half of them relate to xtensa directly.  It was only when I fixed the
last xtensa issue that I realized that the arch has been broken for
a significant time, and isn't a specific v3.4 regression.  So if you
wanted, we could leave xtensa lying bleeding in the street for a couple
more weeks and queue those for 3.5.  But given they are no risk to
anyone outside of xtensa, I figured to just leave them in.

If you are OK with taking the xtensa fixes, then please pull to get:

-one last implicit include uncovered by system.h that is in a file
 specific to just one powerpc defconfig.  (I'd sync'd with BenH).

-fix an oversight in the PCI makefile where shared code wasn't being
 compiled for ARCH=frv

-fix a missing include for GPIO in blackfin framebuffer.

-audit and tag endif in blackfin ezkit board file, in order to find
 and fix the misplaced endif masking a block of code.

-fix irq/debug.h choice of temporary macro names to be more internal
 so they don't conflict with names used by xtensa.

-fix a reference to an undeclared local var in xtensa's signal.c

-fix an implicit bug.h usage in xtensa's asm/io.h uncovered by my
 removing bug.h from kernel.h

-fix xtensa to properly indicate it is using asm-generic/hardirq.h
 in order to resolve the link error - undefined ack_bad_irq

The xtensa still fails final link as my latest binutils does something
evil when ld forward-relocates unlikely() blocks, but in theory people
who have older/valid toolchains could now use the thing.

Thanks,
Paul.
---

The following changes since commit e816b57a337ea3b755de72bec38c10c864f23015:

  Linux 3.4-rc3 (2012-04-15 18:28:29 -0700)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux.git for-v3.4-rc5

for you to fetch changes up to 8e12a038f88e819c878e5697ff681cb08bcebb08:

  xtensa: fix build fail on undefined ack_bad_irq (2012-04-26 18:35:32 -0400)

----------------------------------------------------------------
Paul Gortmaker (8):
      powerpc: fix system.h fallout in sysdev/scom.c [chroma_defconfig]
      xtensa: fix build failure in xtensa/kernel/signal.c
      xtensa: fix build error in xtensa/include/asm/io.h
      irq: hide debug macros so they don't collide with others.
      pci: frv architecture needs generic setup-bus infrastructure
      blackfin: fix compile error in bfin-lq035q1-fb.c
      blackfin: fix ifdef fustercluck in mach-bf538/boards/ezkit.c
      xtensa: fix build fail on undefined ack_bad_irq

 arch/blackfin/mach-bf538/boards/ezkit.c |   53 +++++++++++++++----------------
 arch/powerpc/sysdev/scom.c              |    1 +
 arch/xtensa/include/asm/hardirq.h       |    3 --
 arch/xtensa/include/asm/io.h            |    1 +
 arch/xtensa/kernel/signal.c             |    1 +
 drivers/pci/Makefile                    |    1 +
 drivers/video/bfin-lq035q1-fb.c         |    1 +
 kernel/irq/debug.h                      |   38 +++++++++++-----------
 8 files changed, 50 insertions(+), 49 deletions(-)