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From: Ian Lepore <ian@FreeBSD.org>
Date: Sat, 15 Nov 2014 02:58:17 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r274536 - head/sys/arm/arm
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Author: ian
Date: Sat Nov 15 02:58:17 2014
New Revision: 274536
URL: https://svnweb.freebsd.org/changeset/base/274536

Log:
  Use the standard powerof2() macro from param.h instead of a local one.
  
  Pointed out by:	 jhb@

Modified:
  head/sys/arm/arm/busdma_machdep-v6.c

Modified: head/sys/arm/arm/busdma_machdep-v6.c
==============================================================================
--- head/sys/arm/arm/busdma_machdep-v6.c	Sat Nov 15 01:18:49 2014	(r274535)
+++ head/sys/arm/arm/busdma_machdep-v6.c	Sat Nov 15 02:58:17 2014	(r274536)
@@ -64,8 +64,6 @@ __FBSDID("$FreeBSD$");
 #include <machine/cpufunc.h>
 #include <machine/md_var.h>
 
-#define	IS_POWER_OF_2(val)	(((val) & ((val) - 1)) == 0)
-
 #define MAX_BPAGES 64
 #define MAX_DMA_SEGMENTS	4096
 #define BUS_DMA_EXCL_BOUNCE	BUS_DMA_BUS2
@@ -469,11 +467,11 @@ bus_dma_tag_create(bus_dma_tag_t parent,
 #endif
 
 	/* Basic sanity checking. */
-	KASSERT(boundary == 0 || IS_POWER_OF_2(boundary),
+	KASSERT(boundary == 0 || powerof2(boundary),
 	    ("dma tag boundary %lu, must be a power of 2", boundary));
 	KASSERT(boundary == 0 || boundary >= maxsegsz,
 	    ("dma tag boundary %lu is < maxsegsz %lu\n", boundary, maxsegsz));
-	KASSERT(alignment != 0 && IS_POWER_OF_2(alignment),
+	KASSERT(alignment != 0 && powerof2(alignment),
 	    ("dma tag alignment %lu, must be non-zero power of 2", alignment));
 	KASSERT(maxsegsz != 0, ("dma tag maxsegsz must not be zero"));