linux-kernel - [PATCH 3/4] arm: davinci: use for_each_set_bit

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Date:	Tue,  3 Apr 2012 17:47:15 +0900
From:	Akinobu Mita <akinobu.mita@...il.com>
To:	linux-kernel@...r.kernel.org, akpm@...ux-foundation.org
Cc:	Akinobu Mita <akinobu.mita@...il.com>,
	Sekhar Nori <nsekhar@...com>, Kevin Hilman <khilman@...com>,
	davinci-linux-open-source@...ux.davincidsp.com,
	Russell King <linux@....linux.org.uk>,
	linux-arm-kernel@...ts.infradead.org
Subject: [PATCH 3/4] arm: davinci: use for_each_set_bit_from

Use for_each_set_bit_from to iterate over all the set bit in a memory
region.

Signed-off-by: Akinobu Mita <akinobu.mita@...il.com>
Cc: Sekhar Nori <nsekhar@...com>
Cc: Kevin Hilman <khilman@...com>
Cc: davinci-linux-open-source@...ux.davincidsp.com
Cc: Russell King <linux@....linux.org.uk>
Cc: linux-arm-kernel@...ts.infradead.org
---
 arch/arm/mach-davinci/dma.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm/mach-davinci/dma.c b/arch/arm/mach-davinci/dma.c
index fd33919..2a41339 100644
--- a/arch/arm/mach-davinci/dma.c
+++ b/arch/arm/mach-davinci/dma.c
@@ -557,9 +557,9 @@ static int reserve_contiguous_slots(int ctlr, unsigned int id,
 	if (i == edma_cc[ctlr]->num_slots)
 		stop_slot = i;
 
-	for (j = start_slot; j < stop_slot; j++)
-		if (test_bit(j, tmp_inuse))
-			clear_bit(j, edma_cc[ctlr]->edma_inuse);
+	j = start_slot;
+	for_each_set_bit_from(j, tmp_inuse, stop_slot);
+		clear_bit(j, edma_cc[ctlr]->edma_inuse);
 
 	if (count)
 		return -EBUSY;
-- 
1.7.4.4

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