Replace open-coded loop with for_each_set_bit().
Signed-off-by: Akinobu Mita <akinobu.m...@gmail.com>
Cc: Srinidhi Kasagar <srinidhi.kasa...@stericsson.com>
Cc: Linus Walleij <linus.wall...@linaro.org>
Cc: linux-arm-ker...@lists.infradead.org
Cc: Vinod Koul <vinod.k...@intel.com>
Cc: Dan Williams <d...@fb.com>
---
drivers/dma/ste_dma40.c | 13 +++----------
1 file changed, 3 insertions(+), 10 deletions(-)
diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c
index ae55091..08f5bfe 100644
--- a/drivers/dma/ste_dma40.c
+++ b/drivers/dma/ste_dma40.c
@@ -1487,7 +1487,7 @@ static irqreturn_t d40_handle_interrupt(int irq, void
*data)
u32 regs[ARRAY_SIZE(il)];
u32 idx;
u32 row;
- long chan = -1;
+ long chan;
struct d40_chan *d40c;
unsigned long flags;
struct d40_base *base = data;
@@ -1498,15 +1498,8 @@ static irqreturn_t d40_handle_interrupt(int irq, void
*data)
for (i = 0; i < ARRAY_SIZE(il); i++)
regs[i] = readl(base->virtbase + il[i].src);
- for (;;) {
-
- chan = find_next_bit((unsigned long *)regs,
- BITS_PER_LONG * ARRAY_SIZE(il), chan + 1);
-
- /* No more set bits found? */
- if (chan == BITS_PER_LONG * ARRAY_SIZE(il))
- break;
-
+ for_each_set_bit(chan, (unsigned long *)regs,
+ BITS_PER_LONG * ARRAY_SIZE(il)) {
row = chan / BITS_PER_LONG;
idx = chan & (BITS_PER_LONG - 1);
--
1.7.11.7
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