diff --git a/patches.suse/wcn36xx-use-dma_zalloc_coherent-instead-of-allocator.patch b/patches.suse/wcn36xx-use-dma_zalloc_coherent-instead-of-allocator.patch
new file mode 100644
index 0000000..1a69079
--- /dev/null
+++ b/patches.suse/wcn36xx-use-dma_zalloc_coherent-instead-of-allocator.patch
@@ -0,0 +1,76 @@
+From d410e28f3ae476e1572b8893c646ef44fae7bbbd Mon Sep 17 00:00:00 2001
+From: YueHaibing <yuehaibing@huawei.com>
+Date: Mon, 6 Aug 2018 12:39:16 +0300
+Subject: [PATCH] wcn36xx: use dma_zalloc_coherent instead of allocator/memset
+Git-commit: d410e28f3ae476e1572b8893c646ef44fae7bbbd
+References: git-fixes
+Patch-mainline: v4.20-rc1
+
+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>
+Signed-off-by: Oliver Neukum <oneukum@suse.com>
+---
+ drivers/net/wireless/ath/wcn36xx/dxe.c | 19 +++++++++----------
+ 1 file changed, 9 insertions(+), 10 deletions(-)
+
+diff --git a/drivers/net/wireless/ath/wcn36xx/dxe.c b/drivers/net/wireless/ath/wcn36xx/dxe.c
+index 06cfe8d311f3..5ab3e31c9ffa 100644
+--- a/drivers/net/wireless/ath/wcn36xx/dxe.c
++++ b/drivers/net/wireless/ath/wcn36xx/dxe.c
+@@ -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;
+ 
+-- 
+2.40.1
+
diff --git a/series.conf b/series.conf
index 2a08a5c..4443c76 100644
--- a/series.conf
+++ b/series.conf
@@ -42207,6 +42207,7 @@
 	patches.suse/ice-Fix-error-on-driver-remove.patch
 	patches.suse/ath10k-fix-kernel-panic-by-moving-pci-flush-after-na.patch
 	patches.suse/wcn36xx-Use-kmemdup-instead-of-duplicating-it-in-wcn.patch
+	patches.suse/wcn36xx-use-dma_zalloc_coherent-instead-of-allocator.patch
 	patches.suse/ath10k-skip-resetting-rx-filter-for-WCN3990.patch
 	patches.suse/ath10k-schedule-hardware-restart-if-WMI-command-time.patch
 	patches.suse/ath9k-fix-tx99-with-monitor-mode-interface.patch