From: Fuqian Huang <huangfq.daxian@gmail.com>
Date: Thu, 27 Jun 2019 17:34:10 +0000 (+0800)
Subject: ata: pdc_adma: Remove call to memset after dmam_alloc_coherent
X-Git-Tag: v5.3-rc1~163^2~5
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=65315bbbfd9fdb7863c0bfea5011b400e67bc38b;p=thirdparty%2Flinux.git

ata: pdc_adma: Remove call to memset after dmam_alloc_coherent

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

Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---

diff --git a/drivers/ata/pdc_adma.c b/drivers/ata/pdc_adma.c
index 52fa8606a25fe..c5bbb07aa7d9d 100644
--- a/drivers/ata/pdc_adma.c
+++ b/drivers/ata/pdc_adma.c
@@ -550,7 +550,6 @@ static int adma_port_start(struct ata_port *ap)
 						(u32)pp->pkt_dma);
 		return -ENOMEM;
 	}
-	memset(pp->pkt, 0, ADMA_PKT_BYTES);
 	ap->private_data = pp;
 	adma_reinit_engine(ap);
 	return 0;