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* [PATCH 07/87] ata: sata_sil24: Remove call to memset after dmam_alloc_coherent
@ 2019-06-27 17:34 Fuqian Huang
  0 siblings, 0 replies; only message in thread
From: Fuqian Huang @ 2019-06-27 17:34 UTC (permalink / raw)
  To: unlisted-recipients:; (no To-header on input)
  Cc: Fuqian Huang, Jens Axboe, linux-ide, linux-kernel

In commit af7ddd8a627c
("Merge tag 'dma-mapping-4.21' of git://"),,
dmam_alloc_coherent has already zeroed the memory.
So memset is not needed.

Signed-off-by: Fuqian Huang <>
 drivers/ata/sata_sil24.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/ata/sata_sil24.c b/drivers/ata/sata_sil24.c
index bfdf41912588..98aad8206921 100644
--- a/drivers/ata/sata_sil24.c
+++ b/drivers/ata/sata_sil24.c
@@ -1202,7 +1202,6 @@ static int sil24_port_start(struct ata_port *ap)
 	cb = dmam_alloc_coherent(dev, cb_size, &cb_dma, GFP_KERNEL);
 	if (!cb)
 		return -ENOMEM;
-	memset(cb, 0, cb_size);
 	pp->cmd_block = cb;
 	pp->cmd_block_dma = cb_dma;

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2019-06-27 17:34 [PATCH 07/87] ata: sata_sil24: Remove call to memset after dmam_alloc_coherent Fuqian Huang

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