linux-kernel - [PATCH] omap-dma: simplify omap_dma

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Message-ID: <20250720023019.437925-1-yury.norov@gmail.com>
Date: Sat, 19 Jul 2025 22:30:18 -0400
From: Yury Norov <yury.norov@...il.com>
To: Peter Ujfalusi <peter.ujfalusi@...il.com>,
	Vinod Koul <vkoul@...nel.org>,
	dmaengine@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: Yury Norov <yury.norov@...il.com>
Subject: [PATCH] omap-dma: simplify omap_dma_busy()

From: Yury Norov (NVIDIA) <yury.norov@...il.com>

Use for_each_set_bit() and get rid of housekeeping code.

Signed-off-by: Yury Norov (NVIDIA) <yury.norov@...il.com>
---
 drivers/dma/ti/omap-dma.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/dma/ti/omap-dma.c b/drivers/dma/ti/omap-dma.c
index 8c023c6e623a..ac5c1f32c856 100644
--- a/drivers/dma/ti/omap-dma.c
+++ b/drivers/dma/ti/omap-dma.c
@@ -1530,12 +1530,9 @@ static void omap_dma_free(struct omap_dmadev *od)
 static bool omap_dma_busy(struct omap_dmadev *od)
 {
 	struct omap_chan *c;
-	int lch = -1;
+	int lch;
 
-	while (1) {
-		lch = find_next_bit(od->lch_bitmap, od->lch_count, lch + 1);
-		if (lch >= od->lch_count)
-			break;
+	for_each_set_bit(lch, od->lch_bitmap, od->lch_count) {
 		c = od->lch_map[lch];
 		if (!c)
 			continue;
-- 
2.43.0