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Date:      Wed, 15 May 2019 17:57:07 +0000 (UTC)
From:      Johannes Lundberg <johalun@FreeBSD.org>
To:        src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org
Subject:   svn commit: r347626 - head/sys/compat/linuxkpi/common/include/linux
Message-ID:  <201905151757.x4FHv74H053057@repo.freebsd.org>

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Author: johalun
Date: Wed May 15 17:57:06 2019
New Revision: 347626
URL: https://svnweb.freebsd.org/changeset/base/347626

Log:
  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
  MFC after:	1 week

Modified:
  head/sys/compat/linuxkpi/common/include/linux/kernel.h

Modified: head/sys/compat/linuxkpi/common/include/linux/kernel.h
==============================================================================
--- head/sys/compat/linuxkpi/common/include/linux/kernel.h	Wed May 15 17:55:41 2019	(r347625)
+++ head/sys/compat/linuxkpi/common/include/linux/kernel.h	Wed May 15 17:57:06 2019	(r347626)
@@ -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__)



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