use dma_zalloc_coherent() instead of dma_alloc_coherent and memset().
Signed-off-by: Srinivas Kandagatla <srinivas.kandaga...@linaro.org>
---
drivers/net/wireless/ath/ath10k/ce.c | 9 +--------
drivers/net/wireless/ath/ath10k/pci.c | 3 +--
2 files changed, 2 insertions(+), 10 deletions(-)
diff --git a/drivers/net/wireless/ath/ath10k/ce.c
b/drivers/net/wireless/ath/ath10k/ce.c
index 0b4d796..c2b388f 100644
--- a/drivers/net/wireless/ath/ath10k/ce.c
+++ b/drivers/net/wireless/ath/ath10k/ce.c
@@ -958,7 +958,7 @@ ath10k_ce_alloc_dest_ring(struct ath10k *ar, unsigned int
ce_id,
* coherent DMA are unsupported
*/
dest_ring->base_addr_owner_space_unaligned =
- dma_alloc_coherent(ar->dev,
+ dma_zalloc_coherent(ar->dev,
(nentries * sizeof(struct ce_desc) +
CE_DESC_RING_ALIGN),
&base_addr, GFP_KERNEL);
@@ -969,13 +969,6 @@ ath10k_ce_alloc_dest_ring(struct ath10k *ar, unsigned int
ce_id,
dest_ring->base_addr_ce_space_unaligned = base_addr;
- /*
- * Correctly initialize memory to 0 to prevent garbage
- * data crashing system when download firmware
- */
- memset(dest_ring->base_addr_owner_space_unaligned, 0,
- nentries * sizeof(struct ce_desc) + CE_DESC_RING_ALIGN);
-
dest_ring->base_addr_owner_space = PTR_ALIGN(
dest_ring->base_addr_owner_space_unaligned,
CE_DESC_RING_ALIGN);
diff --git a/drivers/net/wireless/ath/ath10k/pci.c
b/drivers/net/wireless/ath/ath10k/pci.c
index b541a1c..855e3de 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -896,7 +896,7 @@ static int ath10k_pci_diag_read_mem(struct ath10k *ar, u32
address, void *data,
*/
alloc_nbytes = min_t(unsigned int, nbytes, DIAG_TRANSFER_LIMIT);
- data_buf = (unsigned char *)dma_alloc_coherent(ar->dev,
+ data_buf = (unsigned char *)dma_zalloc_coherent(ar->dev,
alloc_nbytes,
&ce_data_base,
GFP_ATOMIC);
@@ -905,7 +905,6 @@ static int ath10k_pci_diag_read_mem(struct ath10k *ar, u32
address, void *data,
ret = -ENOMEM;
goto done;
}
- memset(data_buf, 0, alloc_nbytes);
remaining_bytes = nbytes;
ce_data = ce_data_base;
--
2.10.1
