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Commit abe842eb authored by Dag-Erling Smrgrav's avatar Dag-Erling Smrgrav Committed by Linus Torvalds
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[PATCH] Avoid namespace pollution in <asm/param.h> 



In commit 3D59121003721a8fad11ee72e646fd9d3076b5679c, the x86 and x86-64
<asm/param.h> was changed to include <linux/config.h> for the
configurable timer frequency.

However, asm/param.h is sometimes used in userland (it is included
indirectly from <sys/param.h>), so your commit pollutes the userland
namespace with tons of CONFIG_FOO macros.  This greatly confuses
software packages (such as BusyBox) which use CONFIG_FOO macros
themselves to control the inclusion of optional features.

After a short exchange, Christoph approved this patch

Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent f12f4d90

include/asm-i386/param.h

+1 −2
Original line number Diff line number Diff line 
#include <linux/config.h>



#ifndef _ASMi386_PARAM_H

#define _ASMi386_PARAM_H



#ifdef __KERNEL__

# include <linux/config.h>

# define HZ		CONFIG_HZ	/* Internal kernel timer frequency */

# define USER_HZ	100		/* .. some user interfaces are in "ticks" */

# define CLOCKS_PER_SEC		(USER_HZ)	/* like times() */

include/asm-x86_64/param.h

+1 −2
Original line number Diff line number Diff line 
#include <linux/config.h>



#ifndef _ASMx86_64_PARAM_H

#define _ASMx86_64_PARAM_H



#ifdef __KERNEL__

# include <linux/config.h>

# define HZ            CONFIG_HZ	/* Internal kernel timer frequency */

# define USER_HZ       100		/* .. some user interfaces are in "ticks */

#define CLOCKS_PER_SEC        (USER_HZ)       /* like times() */