mirror of
https://github.com/torvalds/linux.git
synced 2026-09-25 21:21:09 -04:00
Arnd Bergmann
6a32c2469c
Building any configuration with 'make W=1' produces a warning: kernel/bounds.c:16:6: warning: no previous prototype for 'foo' [-Wmissing-prototypes] When also passing -Werror, this prevents us from building any other files. Nobody ever calls the function, but we can't make it 'static' either since we want the compiler output. Calling it 'main' instead however avoids the warning, because gcc does not insist on having a declaration for main. Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnd Bergmann <[email protected]> Reported-by: Kieran Bingham <[email protected]> Reviewed-by: Kieran Bingham <[email protected]> Cc: David Laight <[email protected]> Cc: Masahiro Yamada <[email protected]> Cc: Greg Kroah-Hartman <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
29 lines
751 B
C
29 lines
751 B
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Generate definitions needed by the preprocessor.
|
|
* This code generates raw asm output which is post-processed
|
|
* to extract and format the required data.
|
|
*/
|
|
|
|
#define __GENERATING_BOUNDS_H
|
|
/* Include headers that define the enum constants of interest */
|
|
#include <linux/page-flags.h>
|
|
#include <linux/mmzone.h>
|
|
#include <linux/kbuild.h>
|
|
#include <linux/log2.h>
|
|
#include <linux/spinlock_types.h>
|
|
|
|
int main(void)
|
|
{
|
|
/* The enum constants to put into include/generated/bounds.h */
|
|
DEFINE(NR_PAGEFLAGS, __NR_PAGEFLAGS);
|
|
DEFINE(MAX_NR_ZONES, __MAX_NR_ZONES);
|
|
#ifdef CONFIG_SMP
|
|
DEFINE(NR_CPUS_BITS, ilog2(CONFIG_NR_CPUS));
|
|
#endif
|
|
DEFINE(SPINLOCK_SIZE, sizeof(spinlock_t));
|
|
/* End of constants */
|
|
|
|
return 0;
|
|
}
|