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Date:   Fri, 12 May 2023 14:14:43 +0000
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Subject: [PATCH v2 4/6] dmaengine: pl330: Change unused arg "len" from get_burst_len()
From:   Joy Chakraborty <joychakr@google.com>
To:     Vinod Koul <vkoul@kernel.org>
Cc:     dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org,
        devicetree@vger.kernel.org, manugautam@google.com,
        danielmentz@google.com, sjadavani@google.com,
        Joy Chakraborty <joychakr@google.com>
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Precedence: bulk

Remove unused length argument from get_burst_len() and add burst size as
an argument to allow usage of this function in other places as source and
destination burst sizes are handled separately.

Signed-off-by: Joy Chakraborty <joychakr@google.com>
---
 drivers/dma/pl330.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c
index 746da0bbea92..e5e610c91f18 100644
--- a/drivers/dma/pl330.c
+++ b/drivers/dma/pl330.c
@@ -2660,8 +2660,7 @@ __pl330_prep_dma_memcpy(struct dma_pl330_chan *pch, dma_addr_t dst,
 	return desc;
 }
 
-/* Call after fixing burst size */
-static inline int get_burst_len(struct dma_pl330_desc *desc, size_t len)
+static inline int get_burst_len(struct dma_pl330_desc *desc, unsigned int brst_size)
 {
 	struct dma_pl330_chan *pch = desc->pchan;
 	struct pl330_dmac *pl330 = pch->dmac;
@@ -2669,7 +2668,7 @@ static inline int get_burst_len(struct dma_pl330_desc *desc, size_t len)
 
 	burst_len = pl330->pcfg.data_bus_width / 8;
 	burst_len *= pl330->pcfg.data_buf_dep / pl330->pcfg.num_chan;
-	burst_len >>= desc->rqcfg.src_brst_size;
+	burst_len >>= brst_size;
 
 	/* src/dst_burst_len can't be more than 16 */
 	if (burst_len > PL330_MAX_BURST)
@@ -2805,7 +2804,7 @@ pl330_prep_dma_memcpy(struct dma_chan *chan, dma_addr_t dst,
 		burst /= 2;
 
 	desc->rqcfg.src_brst_size = __ffs(burst);
-	desc->rqcfg.src_brst_len = get_burst_len(desc, len);
+	desc->rqcfg.src_brst_len = get_burst_len(desc, desc->rqcfg.src_brst_size);
 	/*
 	 * If burst size is smaller than bus width then make sure we only
 	 * transfer one at a time to avoid a burst stradling an MFIFO entry.
-- 
2.40.1.606.ga4b1b128d6-goog