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@gmail.com>
Acked-by: Sekhar Nori <nsekhar@ti.com>
Cc: Sekhar Nori <nsekhar@ti.com>
Cc: Christian Riesch <christian.riesch@omicron.at>
Cc: Kevin Hilman <khilman@ti.com>
Cc: davinci-linux-open-source@linux.davincidsp.com
Cc: Russell King <linux@arm.linux.org.uk>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Sekhar Nori <nsekhar@ti.com>

diff --git a/arch/arm/mach-davinci/dma.c b/arch/arm/mach-davinci/dma.c
index fd33919..95ce019 100644 (file)
--- 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;