asm-generic/hardirq.h needs asm/irq.h which might include
linux/interrupt.h as in the sparc 32 case. At this point
we need irq_cpustat generic definitions, but those are
included later in asm-generic/hardirq.h.

Then delay a bit the inclusion of irq.h from
asm-generic/hardirq.h, it doesn't need to be included early.

This fixes:

 include/linux/interrupt.h: In function '__raise_softirq_irqoff':
 include/linux/interrupt.h:414: error: implicit declaration of function 'local_softirq_pending'
 include/linux/interrupt.h:414: error: lvalue required as left operand of assignment
Reported-by: NIngo Molnar <mingo@elte.hu>
Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com>
Cc: Lai Jiangshan <laijs@cn.fujitsu.com>
Cc: Koki Sanagi <sanagi.koki@jp.fujitsu.com>
Cc: mathieu.desnoyers@efficios.com
Cc: rostedt@goodmis.org
Cc: nhorman@tuxdriver.com
Cc: scott.a.mcmillan@intel.com
Cc: eric.dumazet@gmail.com
Cc: kaneshige.kenji@jp.fujitsu.com
Cc: davem@davemloft.net
Cc: izumi.taku@jp.fujitsu.com
Cc: kosaki.motohiro@jp.fujitsu.com
LKML-Reference: <20100908122557.GA5310@nowhere>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

Since the beginnings in aafe4dbe
("asm-generic: add generic versions of common headers") the generic
version of <asm/hardirq.h> defined __softirq_pending as unsigned long.

Which is different from other architectures for no apparent good reason
and was causing the following warning:

  kernel/time/tick-sched.c: In function 'tick_nohz_stop_sched_tick':
  kernel/time/tick-sched.c:261: warning: format '%02x' expects type 'unsigned int', but argument 2 has type 'long unsigned int'

Reported and initial patch by Wu Zhangjin <wuzhangjin@gmail.com>.
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
Acked-by: NArnd Bergmann <arnd@arndb.de>
[ Arnd points out that we really should make sure parisc and alpha are
  ok with this, since they have also been converted to use the generic
  hardirq.h file. But neither seems to use it, although parisc does
  build a IRQSTAT_SIRQ_PEND #define into asm-offsets - but that also
  appears unused..    - Linus ]
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Architechtures normally don't need to set a HARDIRQ_BITS
unless they have hardcoded a specific value in assembly.
This drops the definition from asm-generic/hardirq.h, which
results in linux/hardirq.h setting its default of 10.

Both the old default of 8 and the linux/hardirq.h default
of 10 are sufficient because they only limit the number
of nested hardirqs, and we normally run out of stack space
much earlier than exceeding 256 or even 1024 nested interrupts.
Reported-by: NMike Frysinger <vapier@gentoo.org>
Acked-by: NSteven Rostedt <rostedt@goodmis.org>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>

These are all kernel internal interfaces that get copied
around a lot. In most cases, architectures can provide
their own optimized versions, but these generic versions
can work as well.

I have tried to use the most common contents of each
header to allow existing architectures to migrate easily.

Thanks to Remis for suggesting a number of cleanups.
Signed-off-by: NRemis Lima Baima <remis.developer@googlemail.com>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>

Signed-off-by: NHirokazu Takata <takata@linux-m32r.org>

Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!