The patch titled
remove linux/hardirq.h from asm-generic/local.h
has been added to the -mm tree. Its filename is
remove-linux-hardirqh-from-asm-generic-localh.patch
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*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find
out what to do about this
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: remove linux/hardirq.h from asm-generic/local.h
From: Russell King <rmk+kernel@xxxxxxxxxxxxxxxx>
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.
Signed-off-by: Russell King <rmk+kernel@xxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/asm-generic/local.h | 1 -
1 file changed, 1 deletion(-)
diff -puN include/asm-generic/local.h~remove-linux-hardirqh-from-asm-generic-localh include/asm-generic/local.h
--- a/include/asm-generic/local.h~remove-linux-hardirqh-from-asm-generic-localh
+++ a/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>
_
Patches currently in -mm which might be from rmk+kernel@xxxxxxxxxxxxxxxx are
linux-next.patch
drivers-input-touchscreen-ucb1400_tsc-needs-gpio.patch
remove-linux-hardirqh-from-asm-generic-localh.patch
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