From: Fuqian Huang <huangfq.daxian@gmail.com>
To: unlisted-recipients:; (no To-header on input)
Cc: Fuqian Huang <huangfq.daxian@gmail.com>,
Jens Axboe <axboe@kernel.dk>,
linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 02/87] ata: acard-ahci: Remove call to memset after dmam_alloc_coherent
Date: Fri, 28 Jun 2019 01:33:46 +0800 [thread overview]
Message-ID: <20190627173346.1933-1-huangfq.daxian@gmail.com> (raw)
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>
---
drivers/ata/acard-ahci.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/ata/acard-ahci.c b/drivers/ata/acard-ahci.c
index b1b49dbd0b14..85357f27a66b 100644
--- a/drivers/ata/acard-ahci.c
+++ b/drivers/ata/acard-ahci.c
@@ -344,7 +344,6 @@ static int acard_ahci_port_start(struct ata_port *ap)
mem = dmam_alloc_coherent(dev, dma_sz, &mem_dma, GFP_KERNEL);
if (!mem)
return -ENOMEM;
- memset(mem, 0, dma_sz);
/*
* First item in chunk of DMA memory: 32-slot command table,
--
2.11.0
next reply other threads:[~2019-06-27 17:34 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-27 17:33 Fuqian Huang [this message]
2019-06-29 15:43 ` [PATCH 02/87] ata: acard-ahci: Remove call to memset after dmam_alloc_coherent Jens Axboe
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