* [PATCH 02/87] ata: acard-ahci: Remove call to memset after dmam_alloc_coherent
@ 2019-06-27 17:33 Fuqian Huang
2019-06-29 15:43 ` Jens Axboe
0 siblings, 1 reply; 2+ messages in thread
From: Fuqian Huang @ 2019-06-27 17:33 UTC (permalink / raw)
Cc: Fuqian Huang, Jens Axboe, linux-ide, linux-kernel
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
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2019-06-27 17:33 [PATCH 02/87] ata: acard-ahci: Remove call to memset after dmam_alloc_coherent Fuqian Huang
2019-06-29 15:43 ` Jens Axboe
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