[PATCH 2/2] forbid asm/bitops.h direct inclusion

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* [PATCH 2/2] forbid asm/bitops.h direct inclusion
       [not found] <30483262301654323266@pripojeni.net>
@ 2007-09-08 20:06 ` Jiri Slaby
  2007-09-10 12:28   ` Ralf Baechle
  0 siblings, 1 reply; 3+ messages in thread
From: Jiri Slaby @ 2007-09-08 20:06 UTC (permalink / raw)
  To: Andrew Morton; +Cc: linux-kernel

forbid asm/bitops.h direct inclusion

Because of compile errors that may occur after bit changes if asm/bitops.h is
included directly without e.g. linux/kernel.h which includes linux/bitops.h, forbid
direct inclusion of asm/bitops.h. Thanks to Adrian Bunk.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Adrian Bunk <bunk@kernel.org>

---
commit cd28a228ae727b2224da736edc613c58a08c5ed9
tree 483ca1765baaf80996484889ed3078c4af24be03
parent 3c05eef3d0a98065323d7d6d9a78e0985eba4b10
author Jiri Slaby <jirislaby@gmail.com> Sat, 08 Sep 2007 21:02:48 +0200
committer Jiri Slaby <jirislaby@gmail.com> Sat, 08 Sep 2007 21:02:48 +0200

 include/asm-alpha/bitops.h     |    4 ++++
 include/asm-arm/bitops.h       |    4 ++++
 include/asm-avr32/bitops.h     |    4 ++++
 include/asm-blackfin/bitops.h  |    4 ++++
 include/asm-cris/bitops.h      |    4 ++++
 include/asm-frv/bitops.h       |    4 ++++
 include/asm-generic/bitops.h   |    4 ++++
 include/asm-h8300/bitops.h     |    5 +++++
 include/asm-i386/bitops.h      |    4 ++++
 include/asm-ia64/bitops.h      |    4 ++++
 include/asm-m32r/bitops.h      |    4 ++++
 include/asm-m68k/bitops.h      |    4 ++++
 include/asm-m68knommu/bitops.h |    4 ++++
 include/asm-mips/bitops.h      |    4 ++++
 include/asm-parisc/bitops.h    |    4 ++++
 include/asm-powerpc/bitops.h   |    4 ++++
 include/asm-s390/bitops.h      |    4 ++++
 include/asm-sh/bitops.h        |    5 +++++
 include/asm-sh64/bitops.h      |    5 +++++
 include/asm-sparc/bitops.h     |    4 ++++
 include/asm-sparc64/bitops.h   |    4 ++++
 include/asm-um/bitops.h        |    4 ++++
 include/asm-v850/bitops.h      |    3 +++
 include/asm-x86_64/bitops.h    |    4 ++++
 include/asm-xtensa/bitops.h    |    4 ++++
 25 files changed, 102 insertions(+), 0 deletions(-)

diff --git a/include/asm-alpha/bitops.h b/include/asm-alpha/bitops.h
index ffec8a8..6490e50 100644
--- a/include/asm-alpha/bitops.h
+++ b/include/asm-alpha/bitops.h
@@ -1,6 +1,10 @@
 #ifndef _ALPHA_BITOPS_H
 #define _ALPHA_BITOPS_H
 
+#ifndef _LINUX_BITOPS_H
+#error only <linux/bitops.h> can be included directly
+#endif
+
 #include <asm/compiler.h>
 
 /*
diff --git a/include/asm-arm/bitops.h b/include/asm-arm/bitops.h
index 52fe058..47a6b08 100644
--- a/include/asm-arm/bitops.h
+++ b/include/asm-arm/bitops.h
@@ -19,6 +19,10 @@
 
 #ifdef __KERNEL__
 
+#ifndef _LINUX_BITOPS_H
+#error only <linux/bitops.h> can be included directly
+#endif
+
 #include <linux/compiler.h>
 #include <asm/system.h>
 
diff --git a/include/asm-avr32/bitops.h b/include/asm-avr32/bitops.h
index f3faddf..1a50b69 100644
--- a/include/asm-avr32/bitops.h
+++ b/include/asm-avr32/bitops.h
@@ -8,6 +8,10 @@
 #ifndef __ASM_AVR32_BITOPS_H
 #define __ASM_AVR32_BITOPS_H
 
+#ifndef _LINUX_BITOPS_H
+#error only <linux/bitops.h> can be included directly
+#endif
+
 #include <asm/byteorder.h>
 #include <asm/system.h>
 
diff --git a/include/asm-blackfin/bitops.h b/include/asm-blackfin/bitops.h
index 03ecedc..b39a175 100644
--- a/include/asm-blackfin/bitops.h
+++ b/include/asm-blackfin/bitops.h
@@ -11,6 +11,10 @@
 
 #ifdef __KERNEL__
 
+#ifndef _LINUX_BITOPS_H
+#error only <linux/bitops.h> can be included directly
+#endif
+
 #include <asm-generic/bitops/ffs.h>
 #include <asm-generic/bitops/__ffs.h>
 #include <asm-generic/bitops/sched.h>
diff --git a/include/asm-cris/bitops.h b/include/asm-cris/bitops.h
index 617151b..e2f49c2 100644
--- a/include/asm-cris/bitops.h
+++ b/include/asm-cris/bitops.h
@@ -14,6 +14,10 @@
 /* Currently this is unsuitable for consumption outside the kernel.  */
 #ifdef __KERNEL__ 
 
+#ifndef _LINUX_BITOPS_H
+#error only <linux/bitops.h> can be included directly
+#endif
+
 #include <asm/arch/bitops.h>
 #include <asm/system.h>
 #include <asm/atomic.h>
diff --git a/include/asm-frv/bitops.h b/include/asm-frv/bitops.h
index 8dba74b..e29de71 100644
--- a/include/asm-frv/bitops.h
+++ b/include/asm-frv/bitops.h
@@ -21,6 +21,10 @@
 
 #ifdef __KERNEL__
 
+#ifndef _LINUX_BITOPS_H
+#error only <linux/bitops.h> can be included directly
+#endif
+
 #include <asm-generic/bitops/ffz.h>
 
 /*
diff --git a/include/asm-generic/bitops.h b/include/asm-generic/bitops.h
index e022a0f..15e6f25 100644
--- a/include/asm-generic/bitops.h
+++ b/include/asm-generic/bitops.h
@@ -19,6 +19,10 @@
 
 #ifdef __KERNEL__
 
+#ifndef _LINUX_BITOPS_H
+#error only <linux/bitops.h> can be included directly
+#endif
+
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/ffs.h>
 #include <asm-generic/bitops/hweight.h>
diff --git a/include/asm-h8300/bitops.h b/include/asm-h8300/bitops.h
index e64ad31..cb18e3b 100644
--- a/include/asm-h8300/bitops.h
+++ b/include/asm-h8300/bitops.h
@@ -10,6 +10,11 @@
 #include <asm/system.h>
 
 #ifdef __KERNEL__
+
+#ifndef _LINUX_BITOPS_H
+#error only <linux/bitops.h> can be included directly
+#endif
+
 /*
  * Function prototypes to keep gcc -Wall happy
  */
diff --git a/include/asm-i386/bitops.h b/include/asm-i386/bitops.h
index c96641f..3268a34 100644
--- a/include/asm-i386/bitops.h
+++ b/include/asm-i386/bitops.h
@@ -5,6 +5,10 @@
  * Copyright 1992, Linus Torvalds.
  */
 
+#ifndef _LINUX_BITOPS_H
+#error only <linux/bitops.h> can be included directly
+#endif
+
 #include <linux/compiler.h>
 #include <asm/alternative.h>
 
diff --git a/include/asm-ia64/bitops.h b/include/asm-ia64/bitops.h
index 2144f1a..a977aff 100644
--- a/include/asm-ia64/bitops.h
+++ b/include/asm-ia64/bitops.h
@@ -9,6 +9,10 @@
  * O(1) scheduler patch
  */
 
+#ifndef _LINUX_BITOPS_H
+#error only <linux/bitops.h> can be included directly
+#endif
+
 #include <linux/compiler.h>
 #include <linux/types.h>
 #include <asm/intrinsics.h>
diff --git a/include/asm-m32r/bitops.h b/include/asm-m32r/bitops.h
index 313a02c..6dc9b81 100644
--- a/include/asm-m32r/bitops.h
+++ b/include/asm-m32r/bitops.h
@@ -11,6 +11,10 @@
  *    Copyright (C) 2004  Hirokazu Takata <takata at linux-m32r.org>
  */
 
+#ifndef _LINUX_BITOPS_H
+#error only <linux/bitops.h> can be included directly
+#endif
+
 #include <linux/compiler.h>
 #include <asm/assembler.h>
 #include <asm/system.h>
diff --git a/include/asm-m68k/bitops.h b/include/asm-m68k/bitops.h
index da151f7..2976b5d 100644
--- a/include/asm-m68k/bitops.h
+++ b/include/asm-m68k/bitops.h
@@ -8,6 +8,10 @@
  * for more details.
  */
 
+#ifndef _LINUX_BITOPS_H
+#error only <linux/bitops.h> can be included directly
+#endif
+
 #include <linux/compiler.h>
 
 /*
diff --git a/include/asm-m68knommu/bitops.h b/include/asm-m68knommu/bitops.h
index b8b2770..f8dfb7b 100644
--- a/include/asm-m68knommu/bitops.h
+++ b/include/asm-m68knommu/bitops.h
@@ -10,6 +10,10 @@
 
 #ifdef __KERNEL__
 
+#ifndef _LINUX_BITOPS_H
+#error only <linux/bitops.h> can be included directly
+#endif
+
 #include <asm-generic/bitops/ffs.h>
 #include <asm-generic/bitops/__ffs.h>
 #include <asm-generic/bitops/sched.h>
diff --git a/include/asm-mips/bitops.h b/include/asm-mips/bitops.h
index d00738e..3b773eb 100644
--- a/include/asm-mips/bitops.h
+++ b/include/asm-mips/bitops.h
@@ -9,6 +9,10 @@
 #ifndef _ASM_BITOPS_H
 #define _ASM_BITOPS_H
 
+#ifndef _LINUX_BITOPS_H
+#error only <linux/bitops.h> can be included directly
+#endif
+
 #include <linux/compiler.h>
 #include <linux/irqflags.h>
 #include <linux/types.h>
diff --git a/include/asm-parisc/bitops.h b/include/asm-parisc/bitops.h
index 03ae287..f8eebcb 100644
--- a/include/asm-parisc/bitops.h
+++ b/include/asm-parisc/bitops.h
@@ -1,6 +1,10 @@
 #ifndef _PARISC_BITOPS_H
 #define _PARISC_BITOPS_H
 
+#ifndef _LINUX_BITOPS_H
+#error only <linux/bitops.h> can be included directly
+#endif
+
 #include <linux/compiler.h>
 #include <asm/types.h>		/* for BITS_PER_LONG/SHIFT_PER_LONG */
 #include <asm/byteorder.h>
diff --git a/include/asm-powerpc/bitops.h b/include/asm-powerpc/bitops.h
index 27f6106..3c14f0d 100644
--- a/include/asm-powerpc/bitops.h
+++ b/include/asm-powerpc/bitops.h
@@ -38,6 +38,10 @@
 
 #ifdef __KERNEL__
 
+#ifndef _LINUX_BITOPS_H
+#error only <linux/bitops.h> can be included directly
+#endif
+
 #include <linux/compiler.h>
 #include <asm/asm-compat.h>
 #include <asm/synch.h>
diff --git a/include/asm-s390/bitops.h b/include/asm-s390/bitops.h
index d756b34..34d9a63 100644
--- a/include/asm-s390/bitops.h
+++ b/include/asm-s390/bitops.h
@@ -15,6 +15,10 @@
 
 #ifdef __KERNEL__
 
+#ifndef _LINUX_BITOPS_H
+#error only <linux/bitops.h> can be included directly
+#endif
+
 #include <linux/compiler.h>
 
 /*
diff --git a/include/asm-sh/bitops.h b/include/asm-sh/bitops.h
index 9d70217..df805f2 100644
--- a/include/asm-sh/bitops.h
+++ b/include/asm-sh/bitops.h
@@ -2,6 +2,11 @@
 #define __ASM_SH_BITOPS_H
 
 #ifdef __KERNEL__
+
+#ifndef _LINUX_BITOPS_H
+#error only <linux/bitops.h> can be included directly
+#endif
+
 #include <asm/system.h>
 /* For __swab32 */
 #include <asm/byteorder.h>
diff --git a/include/asm-sh64/bitops.h b/include/asm-sh64/bitops.h
index 444d5ea..600c59e 100644
--- a/include/asm-sh64/bitops.h
+++ b/include/asm-sh64/bitops.h
@@ -13,6 +13,11 @@
  */
 
 #ifdef __KERNEL__
+
+#ifndef _LINUX_BITOPS_H
+#error only <linux/bitops.h> can be included directly
+#endif
+
 #include <linux/compiler.h>
 #include <asm/system.h>
 /* For __swab32 */
diff --git a/include/asm-sparc/bitops.h b/include/asm-sparc/bitops.h
index 00bd0a6..cb3cefa 100644
--- a/include/asm-sparc/bitops.h
+++ b/include/asm-sparc/bitops.h
@@ -14,6 +14,10 @@
 
 #ifdef __KERNEL__
 
+#ifndef _LINUX_BITOPS_H
+#error only <linux/bitops.h> can be included directly
+#endif
+
 extern unsigned long ___set_bit(unsigned long *addr, unsigned long mask);
 extern unsigned long ___clear_bit(unsigned long *addr, unsigned long mask);
 extern unsigned long ___change_bit(unsigned long *addr, unsigned long mask);
diff --git a/include/asm-sparc64/bitops.h b/include/asm-sparc64/bitops.h
index dd4bfe9..982ce89 100644
--- a/include/asm-sparc64/bitops.h
+++ b/include/asm-sparc64/bitops.h
@@ -7,6 +7,10 @@
 #ifndef _SPARC64_BITOPS_H
 #define _SPARC64_BITOPS_H
 
+#ifndef _LINUX_BITOPS_H
+#error only <linux/bitops.h> can be included directly
+#endif
+
 #include <linux/compiler.h>
 #include <asm/byteorder.h>
 
diff --git a/include/asm-um/bitops.h b/include/asm-um/bitops.h
index 46d7819..e4d38d4 100644
--- a/include/asm-um/bitops.h
+++ b/include/asm-um/bitops.h
@@ -1,6 +1,10 @@
 #ifndef __UM_BITOPS_H
 #define __UM_BITOPS_H
 
+#ifndef _LINUX_BITOPS_H
+#error only <linux/bitops.h> can be included directly
+#endif
+
 #include "asm/arch/bitops.h"
 
 #endif
diff --git a/include/asm-v850/bitops.h b/include/asm-v850/bitops.h
index 8eafdb1..f82f5b4 100644
--- a/include/asm-v850/bitops.h
+++ b/include/asm-v850/bitops.h
@@ -13,6 +13,9 @@
 #ifndef __V850_BITOPS_H__
 #define __V850_BITOPS_H__
 
+#ifndef _LINUX_BITOPS_H
+#error only <linux/bitops.h> can be included directly
+#endif
 
 #include <linux/compiler.h>	/* unlikely  */
 #include <asm/byteorder.h>	/* swab32 */
diff --git a/include/asm-x86_64/bitops.h b/include/asm-x86_64/bitops.h
index 2607dbc..4dbf36d 100644
--- a/include/asm-x86_64/bitops.h
+++ b/include/asm-x86_64/bitops.h
@@ -5,6 +5,10 @@
  * Copyright 1992, Linus Torvalds.
  */
 
+#ifndef _LINUX_BITOPS_H
+#error only <linux/bitops.h> can be included directly
+#endif
+
 #include <asm/alternative.h>
 
 #if __GNUC__ < 4 || (__GNUC__ = 4 && __GNUC_MINOR__ < 1)
diff --git a/include/asm-xtensa/bitops.h b/include/asm-xtensa/bitops.h
index 78db04c..23261e8 100644
--- a/include/asm-xtensa/bitops.h
+++ b/include/asm-xtensa/bitops.h
@@ -15,6 +15,10 @@
 
 #ifdef __KERNEL__
 
+#ifndef _LINUX_BITOPS_H
+#error only <linux/bitops.h> can be included directly
+#endif
+
 #include <asm/processor.h>
 #include <asm/byteorder.h>
 #include <asm/system.h>

^ permalink raw reply related	[flat|nested] 3+ messages in thread

* Re: [PATCH 2/2] forbid asm/bitops.h direct inclusion
  2007-09-08 20:06 ` [PATCH 2/2] forbid asm/bitops.h direct inclusion Jiri Slaby
@ 2007-09-10 12:28   ` Ralf Baechle
  2007-09-10 13:03     ` Adrian Bunk
  0 siblings, 1 reply; 3+ messages in thread
From: Ralf Baechle @ 2007-09-10 12:28 UTC (permalink / raw)
  To: Jiri Slaby
  Cc: Andrew Morton, linux-kernel, Adrian Bunk, rth, hskinnemoen,
	uclinux-dist-devel, dev-etrax, dhowells, discuss, linux-ia64,
	linux-mips, parisc-linux, sparclinux, chris

On Sat, Sep 08, 2007 at 09:00:48PM +0100, Jiri Slaby wrote:

> forbid asm/bitops.h direct inclusion
> 
> Because of compile errors that may occur after bit changes if asm/bitops.h is
> included directly without e.g. linux/kernel.h which includes linux/bitops.h, forbid
> direct inclusion of asm/bitops.h. Thanks to Adrian Bunk.

This is the kind of thing that checkpatch.pl is already checking for and
I like that idea much more than adding thousands of checks over many of
the header files under asm.

  Ralf

^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: [PATCH 2/2] forbid asm/bitops.h direct inclusion
  2007-09-10 12:28   ` Ralf Baechle
@ 2007-09-10 13:03     ` Adrian Bunk
  0 siblings, 0 replies; 3+ messages in thread
From: Adrian Bunk @ 2007-09-10 13:03 UTC (permalink / raw)
  To: Ralf Baechle
  Cc: Jiri Slaby, Andrew Morton, linux-kernel, rth, hskinnemoen,
	uclinux-dist-devel, dev-etrax, dhowells, discuss, linux-ia64,
	linux-mips, parisc-linux, sparclinux, chris

On Mon, Sep 10, 2007 at 01:28:38PM +0100, Ralf Baechle wrote:
> On Sat, Sep 08, 2007 at 09:00:48PM +0100, Jiri Slaby wrote:
> 
> > forbid asm/bitops.h direct inclusion
> > 
> > Because of compile errors that may occur after bit changes if asm/bitops.h is
> > included directly without e.g. linux/kernel.h which includes linux/bitops.h, forbid
> > direct inclusion of asm/bitops.h. Thanks to Adrian Bunk.
> 
> This is the kind of thing that checkpatch.pl is already checking for and
> I like that idea much more than adding thousands of checks over many of
> the header files under asm.

Checks in the header are only for header files where including only the 
asm header doesn't work which doesn't seem to be the common case.

>   Ralf

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed


^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2007-09-10 13:03 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
     [not found] <30483262301654323266@pripojeni.net>
2007-09-08 20:06 ` [PATCH 2/2] forbid asm/bitops.h direct inclusion Jiri Slaby
2007-09-10 12:28   ` Ralf Baechle
2007-09-10 13:03     ` Adrian Bunk

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