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block: mtip32xx: Remove call to memset after dma_alloc_coherent 

In commit af7ddd8a62
("Merge tag 'dma-mapping-4.21' of git://git.infradead.org/users/hch/dma-mapping"),
dma_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>
This commit is contained in:
Fuqian Huang 2019-06-28 01:35:04 +08:00 committed by Jens Axboe
parent 15ddffcb34
commit b71e8c13fa
1 changed files with 0 additions and 5 deletions
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5
drivers/block/mtip32xx/mtip32xx.c
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@ -1577,7 +1577,6 @@ static int exec_drive_command(struct mtip_port *port, u8 *command,
ATA_SECT_SIZE * xfer_sz);
return -ENOMEM;
}
memset(buf, 0, ATA_SECT_SIZE * xfer_sz);
}
/* Build the FIS. */
@ -2776,7 +2775,6 @@ static int mtip_dma_alloc(struct driver_data *dd)
&port->block1_dma, GFP_KERNEL);
if (!port->block1)
return -ENOMEM;
memset(port->block1, 0, BLOCK_DMA_ALLOC_SZ);
/* Allocate dma memory for command list */
port->command_list =
@ -2789,7 +2787,6 @@ static int mtip_dma_alloc(struct driver_data *dd)
port->block1_dma = 0;
return -ENOMEM;
}
memset(port->command_list, 0, AHCI_CMD_TBL_SZ);
/* Setup all pointers into first DMA region */
port->rxfis = port->block1 + AHCI_RX_FIS_OFFSET;
@ -3529,8 +3526,6 @@ static int mtip_init_cmd(struct blk_mq_tag_set *set, struct request *rq,
if (!cmd->command)
return -ENOMEM;
memset(cmd->command, 0, CMD_DMA_ALLOC_SZ);
sg_init_table(cmd->sg, MTIP_MAX_SG);
return 0;
}