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authorRussell King <rmk+kernel@arm.linux.org.uk>2009-01-06 14:41:07 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-01-06 15:59:13 -0800
commitba84be2338d3a2b6020d39279335bb06fcd332e1 (patch)
treeea41e8d58b208332945808380f9643a8267f7ad5 /include/asm-generic
parent08adefd4791772d8b3fe23cc9d2554123e21dfa3 (diff)
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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')
-rw-r--r--include/asm-generic/local.h1
1 files changed, 0 insertions, 1 deletions
diff --git a/include/asm-generic/local.h b/include/asm-generic/local.h
index 33d7d04e411..dbd6150763e 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>