linux/arch
Russell King ba84be2338 remove linux/hardirq.h from asm-generic/local.h
While looking at reducing the amount of architecture namespace pollution
in the generic kernel, I found that asm/irq.h is included in the vast
majority of compilations on ARM (around 650 files.)

Since asm/irq.h includes a sub-architecture include file on ARM, this
causes a negative impact on the ccache's ability to re-use the build
results from other sub-architectures, so we have a desire to reduce the
dependencies on asm/irq.h.

It turns out that a major cause of this is the needless include of
linux/hardirq.h into asm-generic/local.h.  The patch below removes this
include, resulting in some 250 to 300 files (around half) of the kernel
then omitting asm/irq.h.

My test builds still succeed, provided two ARM files are fixed
(arch/arm/kernel/traps.c and arch/arm/mm/fault.c) - so there may be
negative impacts for this on other architectures.

Note that x86 does not include asm/irq.h nor linux/hardirq.h in its
asm/local.h, so this patch can be viewed as bringing the generic version
into line with the x86 version.

[kosaki.motohiro@jp.fujitsu.com: add #include <linux/irqflags.h> to acpi/processor_idle.c]
[adobriyan@gmail.com: fix sparc64]
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06 15:59:13 -08:00
..
alpha atomic_t: unify all arch definitions 2009-01-06 15:59:10 -08:00
arm atomic_t: unify all arch definitions 2009-01-06 15:59:10 -08:00
avr32 remove linux/hardirq.h from asm-generic/local.h 2009-01-06 15:59:13 -08:00
blackfin atomic_t: unify all arch definitions 2009-01-06 15:59:10 -08:00
cris atomic_t: unify all arch definitions 2009-01-06 15:59:10 -08:00
frv take init_fs to saner place 2008-12-31 18:07:42 -05:00
h8300 atomic_t: unify all arch definitions 2009-01-06 15:59:10 -08:00
ia64 atomic_t: unify all arch definitions 2009-01-06 15:59:10 -08:00
m32r Merge branch 'cpus4096-for-linus-3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-01-03 12:04:39 -08:00
m68k m68k: fix recursive dependency in Kconfig 2009-01-02 20:43:20 +01:00
m68knommu atomic_t: unify all arch definitions 2009-01-06 15:59:10 -08:00
mips atomic_t: unify all arch definitions 2009-01-06 15:59:10 -08:00
mn10300 take init_fs to saner place 2008-12-31 18:07:42 -05:00
parisc atomic_t: unify all arch definitions 2009-01-06 15:59:10 -08:00
powerpc atomic_t: unify all arch definitions 2009-01-06 15:59:10 -08:00
s390 atomic_t: unify all arch definitions 2009-01-06 15:59:10 -08:00
sh remove linux/hardirq.h from asm-generic/local.h 2009-01-06 15:59:13 -08:00
sparc atomic_t: unify all arch definitions 2009-01-06 15:59:10 -08:00
um mm: invoke oom-killer from page fault 2009-01-06 15:58:58 -08:00
x86 Remove remaining unwinder code 2009-01-06 15:59:11 -08:00
xtensa take init_fs to saner place 2008-12-31 18:07:42 -05:00
.gitignore
Kconfig