Use the zeroing function instead of dma_alloc_coherent & memset(,0,)
Signed-off-by: Joe Perches <j...@perches.com>
---
drivers/net/wireless/ath/ath10k/pci.c | 8 ++------
drivers/net/wireless/ath/ath10k/wmi.c | 8 ++------
drivers/net/wireless/ath/wcn36xx/dxe.c | 6 ++----
3 files changed, 6 insertions(+), 16 deletions(-)
diff --git a/drivers/net/wireless/ath/ath10k/pci.c
b/drivers/net/wireless/ath/ath10k/pci.c
index d0004d5..35045a4 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -359,16 +359,12 @@ static int ath10k_pci_diag_read_mem(struct ath10k *ar,
u32 address, void *data,
* 2) Buffer in DMA-able space
*/
orig_nbytes = nbytes;
- data_buf = (unsigned char *)dma_alloc_coherent(ar->dev,
- orig_nbytes,
- &ce_data_base,
- GFP_ATOMIC);
-
+ data_buf = dma_zalloc_coherent(ar->dev, orig_nbytes, &ce_data_base,
+ GFP_ATOMIC);
if (!data_buf) {
ret = -ENOMEM;
goto done;
}
- memset(data_buf, 0, orig_nbytes);
remaining_bytes = orig_nbytes;
ce_data = ce_data_base;
diff --git a/drivers/net/wireless/ath/ath10k/wmi.c
b/drivers/net/wireless/ath/ath10k/wmi.c
index 4b7782a..0093269 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -1889,17 +1889,13 @@ static int ath10k_wmi_alloc_host_mem(struct ath10k *ar,
u32 req_id,
if (!pool_size)
return -EINVAL;
- ar->wmi.mem_chunks[idx].vaddr = dma_alloc_coherent(ar->dev,
- pool_size,
- &paddr,
- GFP_ATOMIC);
+ ar->wmi.mem_chunks[idx].vaddr = dma_zalloc_coherent(ar->dev, pool_size,
+ &paddr, GFP_ATOMIC);
if (!ar->wmi.mem_chunks[idx].vaddr) {
ath10k_warn("failed to allocate memory chunk\n");
return -ENOMEM;
}
- memset(ar->wmi.mem_chunks[idx].vaddr, 0, pool_size);
-
ar->wmi.mem_chunks[idx].paddr = paddr;
ar->wmi.mem_chunks[idx].len = pool_size;
ar->wmi.mem_chunks[idx].req_id = req_id;
diff --git a/drivers/net/wireless/ath/wcn36xx/dxe.c
b/drivers/net/wireless/ath/wcn36xx/dxe.c
index 73f12f1..1975a1a 100644
--- a/drivers/net/wireless/ath/wcn36xx/dxe.c
+++ b/drivers/net/wireless/ath/wcn36xx/dxe.c
@@ -177,13 +177,11 @@ static int wcn36xx_dxe_init_descs(struct wcn36xx_dxe_ch
*wcn_ch)
int i;
size = wcn_ch->desc_num * sizeof(struct wcn36xx_dxe_desc);
- wcn_ch->cpu_addr = dma_alloc_coherent(NULL, size, &wcn_ch->dma_addr,
- GFP_KERNEL);
+ wcn_ch->cpu_addr = dma_zalloc_coherent(NULL, 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;
--
1.8.1.2.459.gbcd45b4.dirty
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