svn commit: r348086 - stable/12/sys/compat/linuxkpi/common/include/linux

[Johannes Lundberg]

Author: johalun
Date: Wed May 22 04:00:13 2019
New Revision: 348086
URL: https://svnweb.freebsd.org/changeset/base/348086

Log:
  MFC r347626:
  LinuxKPI: Add helper macros IS_ALIGNED and DIV_ROUND_DOWN_ULL.
  
  This patch is part of D19565
  
  Reviewed by:	hps
  Approved by:	imp (mentor), hps

Modified:
  stable/12/sys/compat/linuxkpi/common/include/linux/kernel.h
Directory Properties:
  stable/12/   (props changed)

Modified: stable/12/sys/compat/linuxkpi/common/include/linux/kernel.h
==============================================================================
--- stable/12/sys/compat/linuxkpi/common/include/linux/kernel.h	Wed May 22 03:58:41 2019	(r348085)
+++ stable/12/sys/compat/linuxkpi/common/include/linux/kernel.h	Wed May 22 04:00:13 2019	(r348086)
@@ -130,9 +130,14 @@
 #define	ALIGN(x, y)		roundup2((x), (y))
 #undef PTR_ALIGN
 #define	PTR_ALIGN(p, a)		((__typeof(p))ALIGN((uintptr_t)(p), (a)))
+#if defined(LINUXKPI_VERSION) && LINUXKPI_VERSION >= 50000
+/* Moved from linuxkpi_gplv2 */
+#define	IS_ALIGNED(x, a)	(((x) & ((__typeof(x))(a) - 1)) == 0)
+#endif
 #define	DIV_ROUND_UP(x, n)	howmany(x, n)
 #define	__KERNEL_DIV_ROUND_UP(x, n)	howmany(x, n)
 #define	DIV_ROUND_UP_ULL(x, n)	DIV_ROUND_UP((unsigned long long)(x), (n))
+#define	DIV_ROUND_DOWN_ULL(x, n) (((unsigned long long)(x) / (n)) * (n))
 #define	FIELD_SIZEOF(t, f)	sizeof(((t *)0)->f)
 
 #define	printk(...)		printf(__VA_ARGS__)