include/uapi/linux/kernel.h

#ifndef _UAPI_LINUX_KERNEL_H
#define _UAPI_LINUX_KERNEL_H

#include <linux/sysinfo.h>

/*
 * 'kernel.h' contains some often-used function prototypes etc
 */
#define __ALIGN_KERNEL(x, a)		__ALIGN_KERNEL_MASK(x, (typeof(x))(a) - 1)
#define __ALIGN_KERNEL_MASK(x, mask)	(((x) + (mask)) & ~(mask))

#define __KERNEL_DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d))

#endif /* _UAPI_LINUX_KERNEL_H */
UAPI: (Scripted) Disintegrate include/linux Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Michael Kerrisk <mtk.manpages@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com> 2012-10-13 10:46:48 +01:00			`#ifndef _UAPI_LINUX_KERNEL_H`
			`#define _UAPI_LINUX_KERNEL_H`

			`#include <linux/sysinfo.h>`

			`/*`
			`* 'kernel.h' contains some often-used function prototypes etc`
			`*/`
			`#define __ALIGN_KERNEL(x, a) __ALIGN_KERNEL_MASK(x, (typeof(x))(a) - 1)`
			`#define __ALIGN_KERNEL_MASK(x, mask) (((x) + (mask)) & ~(mask))`

uapi: define DIV_ROUND_UP for userland DIV_ROUND_UP is defined in linux/kernel.h only for the kernel. When ethtool.h is included by a userland app, we got the following error: include/linux/ethtool.h:1218:8: error: variably modified 'queue_mask' at file scope __u32 queue_mask[DIV_ROUND_UP(MAX_NUM_QUEUE, 32)]; ^ Let's add a common definition in uapi and use it everywhere. Fixes: ac2c7ad0e5d6 ("net/ethtool: introduce a new ioctl for per queue setting") CC: Kan Liang <kan.liang@intel.com> Suggested-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net> 2016-03-04 11:52:16 +01:00			`#define __KERNEL_DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d))`
UAPI: (Scripted) Disintegrate include/linux Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Michael Kerrisk <mtk.manpages@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com> 2012-10-13 10:46:48 +01:00
			`#endif /* _UAPI_LINUX_KERNEL_H */`