From f8fdb81f6cbf9387fee7a8ab82b315798a7038ba Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Thu, 5 Nov 2015 12:43:39 -0200
Subject: [PATCH] compat: Remove is_power_of_2() definition

Use the is_power_of_2() definition from log2.h to align with the
kernel implementation.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Jagan Teki <jteki@openedev.com>
---
 arch/arm/mach-mvebu/mbus.c | 2 +-
 drivers/mtd/mtdcore.c      | 2 +-
 drivers/mtd/ubi/build.c    | 2 +-
 fs/ubifs/super.c           | 2 +-
 include/linux/compat.h     | 6 ------
 5 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/arch/arm/mach-mvebu/mbus.c b/arch/arm/mach-mvebu/mbus.c
index 771cce6..346278e 100644
--- a/arch/arm/mach-mvebu/mbus.c
+++ b/arch/arm/mach-mvebu/mbus.c
@@ -52,7 +52,7 @@
 #include <asm/io.h>
 #include <asm/arch/cpu.h>
 #include <asm/arch/soc.h>
-#include <linux/compat.h>
+#include <linux/log2.h>
 #include <linux/mbus.h>
 
 /* DDR target is the same on all platforms */
diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c
index 2f2172b..e3f56e5 100644
--- a/drivers/mtd/mtdcore.c
+++ b/drivers/mtd/mtdcore.c
@@ -27,11 +27,11 @@
 #include <linux/gfp.h>
 #include <linux/slab.h>
 #else
-#include <linux/compat.h>
 #include <linux/err.h>
 #include <ubi_uboot.h>
 #endif
 
+#include <linux/log2.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
 
diff --git a/drivers/mtd/ubi/build.c b/drivers/mtd/ubi/build.c
index f0a3b67..f484e62 100644
--- a/drivers/mtd/ubi/build.c
+++ b/drivers/mtd/ubi/build.c
@@ -30,7 +30,7 @@
 #include <linux/slab.h>
 #include <linux/major.h>
 #else
-#include <linux/compat.h>
+#include <linux/log2.h>
 #endif
 #include <linux/err.h>
 #include <ubi_uboot.h>
diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
index c474313..abe861a 100644
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -31,7 +31,7 @@
 #include <common.h>
 #include <malloc.h>
 #include <memalign.h>
-#include <linux/compat.h>
+#include <linux/log2.h>
 #include <linux/stat.h>
 #include <linux/err.h>
 #include "ubifs.h"
diff --git a/include/linux/compat.h b/include/linux/compat.h
index 59937de..e561ee3 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -130,12 +130,6 @@ static inline void led_trigger_unregister_simple(struct led_trigger *trigger) {}
 static inline void led_trigger_event(struct led_trigger *trigger,
 					enum led_brightness event) {}
 
-/* include/linux/log2.h */
-static inline int is_power_of_2(unsigned long n)
-{
-	return (n != 0 && ((n & (n - 1)) == 0));
-}
-
 /* uapi/linux/limits.h */
 #define XATTR_LIST_MAX 65536	/* size of extended attribute namelist (64k) */