In commit af7ddd8a627c
("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 <[email protected]>
---
drivers/block/mtip32xx/mtip32xx.c | 5 -----
1 file changed, 5 deletions(-)
diff --git a/drivers/block/mtip32xx/mtip32xx.c
b/drivers/block/mtip32xx/mtip32xx.c
index a14b09ab3a41..964f78cfffa0 100644
--- a/drivers/block/mtip32xx/mtip32xx.c
+++ b/drivers/block/mtip32xx/mtip32xx.c
@@ -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;
}
--
2.11.0
