From: Andy Shevchenko Date: Thu, 8 Jan 2026 10:50:15 +0000 (+0100) Subject: dmaengine: bcm2835-dma: use sg_nents_for_dma() helper X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=39110c68500a149664bafb0c174baef0d42e2129;p=thirdparty%2Flinux.git dmaengine: bcm2835-dma: use sg_nents_for_dma() helper Instead of open coded variant let's use recently introduced helper. Reviewed-by: Bjorn Andersson Signed-off-by: Andy Shevchenko Link: https://patch.msgid.link/20260108105619.3513561-5-andriy.shevchenko@linux.intel.com Signed-off-by: Vinod Koul --- diff --git a/drivers/dma/bcm2835-dma.c b/drivers/dma/bcm2835-dma.c index 321748e2983e..3f638c3e81cd 100644 --- a/drivers/dma/bcm2835-dma.c +++ b/drivers/dma/bcm2835-dma.c @@ -260,23 +260,6 @@ static void bcm2835_dma_create_cb_set_length( control_block->info |= finalextrainfo; } -static inline size_t bcm2835_dma_count_frames_for_sg( - struct bcm2835_chan *c, - struct scatterlist *sgl, - unsigned int sg_len) -{ - size_t frames = 0; - struct scatterlist *sgent; - unsigned int i; - size_t plength = bcm2835_dma_max_frame_length(c); - - for_each_sg(sgl, sgent, sg_len, i) - frames += bcm2835_dma_frames_for_length( - sg_dma_len(sgent), plength); - - return frames; -} - /** * bcm2835_dma_create_cb_chain - create a control block and fills data in * @@ -672,7 +655,7 @@ static struct dma_async_tx_descriptor *bcm2835_dma_prep_slave_sg( } /* count frames in sg list */ - frames = bcm2835_dma_count_frames_for_sg(c, sgl, sg_len); + frames = sg_nents_for_dma(sgl, sg_len, bcm2835_dma_max_frame_length(c)); /* allocate the CB chain */ d = bcm2835_dma_create_cb_chain(chan, direction, false,