linux-kernel - [PATCH RFC] kconfig.h fix extraneous dependencies

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Message-id: <alpine.LNX.2.00.1107311812460.62769@linux>
Date:	Sun, 31 Jul 2011 20:36:03 -0400 (EDT)
From:	Peter Foley <pefoley2@...izon.net>
To:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linux Kbuild Mailing List <linux-kbuild@...r.kernel.org>,
	mmarek@...e.cz, rdunlap@...otime.net, lacombar@...il.com
Subject: [PATCH RFC] kconfig.h fix extraneous dependencies

The introduction of kconfig.h caused fixdep to create three extraneous 
dependencies.
include/config/.h
include/config/h.h
include/config/foo.h

Remove them by eliminating instances of CONFIG_

Signed-off-by: Peter Foley <pefoley2@...izon.net>
---

Suggestions for a better replacement for CONFIG_FOO would be appreciated.

diff --git a/include/linux/kconfig.h b/include/linux/kconfig.h
index 067eda0..66a0659 100644
--- a/include/linux/kconfig.h
+++ b/include/linux/kconfig.h
@@ -1,15 +1,15 @@
-#ifndef __LINUX_KCONFIG_H
-#define __LINUX_KCONFIG_H
+#ifndef __LINUX_KCONFIG
+#define __LINUX_KCONFIG
 
 #include <generated/autoconf.h>
 
 /*
- * Helper macros to use CONFIG_ options in C expressions. Note that
+ * Helper macros to use CONFIG options in C expressions. Note that
  * these only work with boolean and tristate options.
  */
 
 /*
- * IS_ENABLED(CONFIG_FOO) evaluates to 1 if CONFIG_FOO is set to 'y' or 'm',
+ * IS_ENABLED(CONFIG _FOO) evaluates to 1 if CONFIG _FOO is set to 'y' or 'm',
  * 0 otherwise.
  *
  */
@@ -17,16 +17,16 @@
 	(__enabled_ ## option || __enabled_ ## option ## _MODULE)
 
 /*
- * IS_BUILTIN(CONFIG_FOO) evaluates to 1 if CONFIG_FOO is set to 'y', 0
+ * IS_BUILTIN(CONFIG _FOO) evaluates to 1 if CONFIG _FOO is set to 'y', 0
  * otherwise. For boolean options, this is equivalent to
- * IS_ENABLED(CONFIG_FOO).
+ * IS_ENABLED(CONFIG _FOO).
  */
 #define IS_BUILTIN(option) __enabled_ ## option
 
 /*
- * IS_MODULE(CONFIG_FOO) evaluates to 1 if CONFIG_FOO is set to 'm', 0
+ * IS_MODULE(CONFIG _FOO) evaluates to 1 if CONFIG _FOO is set to 'm', 0
  * otherwise.
  */
 #define IS_MODULE(option) __enabled_ ## option ## _MODULE
 
-#endif /* __LINUX_KCONFIG_H */
+#endif /* __LINUX_KCONFIG */
--
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