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OpenCloudOS-Kernel
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wcn36xx: use dma_zalloc_coherent instead of allocator/memset 

Use dma_zalloc_coherent instead of dma_alloc_coherent
followed by memset 0.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
YueHaibing 2018-08-06 12:39:16 +03:00 committed by Kalle Valo
parent 3f96556f63
commit d410e28f3a
1 changed files with 9 additions and 10 deletions
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19
drivers/net/wireless/ath/wcn36xx/dxe.c
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@ -174,13 +174,12 @@ static int wcn36xx_dxe_init_descs(struct device *dev, struct wcn36xx_dxe_ch *wcn
int i;
size = wcn_ch->desc_num * sizeof(struct wcn36xx_dxe_desc);
wcn_ch->cpu_addr = dma_alloc_coherent(dev, size, &wcn_ch->dma_addr,
GFP_KERNEL);
wcn_ch->cpu_addr = dma_zalloc_coherent(dev, size,
&wcn_ch->dma_addr,
GFP_KERNEL);
if (!wcn_ch->cpu_addr)
return -ENOMEM;
memset(wcn_ch->cpu_addr, 0, size);
cur_dxe = (struct wcn36xx_dxe_desc *)wcn_ch->cpu_addr;
cur_ctl = wcn_ch->head_blk_ctl;
@ -628,13 +627,13 @@ int wcn36xx_dxe_allocate_mem_pools(struct wcn36xx *wcn)
16 - (WCN36XX_BD_CHUNK_SIZE % 8);
s = wcn->mgmt_mem_pool.chunk_size * WCN36XX_DXE_CH_DESC_NUMB_TX_H;
cpu_addr = dma_alloc_coherent(wcn->dev, s, &wcn->mgmt_mem_pool.phy_addr,
GFP_KERNEL);
cpu_addr = dma_zalloc_coherent(wcn->dev, s,
&wcn->mgmt_mem_pool.phy_addr,
GFP_KERNEL);
if (!cpu_addr)
goto out_err;
wcn->mgmt_mem_pool.virt_addr = cpu_addr;
memset(cpu_addr, 0, s);
/* Allocate BD headers for DATA frames */
@ -643,13 +642,13 @@ int wcn36xx_dxe_allocate_mem_pools(struct wcn36xx *wcn)
16 - (WCN36XX_BD_CHUNK_SIZE % 8);
s = wcn->data_mem_pool.chunk_size * WCN36XX_DXE_CH_DESC_NUMB_TX_L;
cpu_addr = dma_alloc_coherent(wcn->dev, s, &wcn->data_mem_pool.phy_addr,
GFP_KERNEL);
cpu_addr = dma_zalloc_coherent(wcn->dev, s,
&wcn->data_mem_pool.phy_addr,
GFP_KERNEL);
if (!cpu_addr)
goto out_err;
wcn->data_mem_pool.virt_addr = cpu_addr;
memset(cpu_addr, 0, s);
return 0;