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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2009-01-06 14:41:07 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-01-06 15:59:13 -0800 |
| commit | ba84be2338d3a2b6020d39279335bb06fcd332e1 (patch) | |
| tree | ea41e8d58b208332945808380f9643a8267f7ad5 /include/asm-generic/local.h | |
| parent | 08adefd4791772d8b3fe23cc9d2554123e21dfa3 (diff) | |
| download | blackbird-op-linux-ba84be2338d3a2b6020d39279335bb06fcd332e1.tar.gz blackbird-op-linux-ba84be2338d3a2b6020d39279335bb06fcd332e1.zip | |
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>
Diffstat (limited to 'include/asm-generic/local.h')
| -rw-r--r-- | include/asm-generic/local.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/include/asm-generic/local.h b/include/asm-generic/local.h index 33d7d04e4119..dbd6150763e9 100644 --- a/include/asm-generic/local.h +++ b/include/asm-generic/local.h @@ -2,7 +2,6 @@ #define _ASM_GENERIC_LOCAL_H #include <linux/percpu.h> -#include <linux/hardirq.h> #include <asm/atomic.h> #include <asm/types.h> |
