Commit 14d9c11c authored by Amitkumar Karwar's avatar Amitkumar Karwar Committed by Kalle Valo

mwifiex: avoid memsetting PCIe event buffer

Preallocated PCIe buffer is being reused for all PCIe interface
events. Physical address of the buffer is shared with firmware
so that it can perform DMA on it. As event length is specified
in the header, there should not be a problem if the buffer gets
overwritten.
We will save some cycles by avoiding memset everytime while
submitting the buffer to firmware.

Fixes: 2728cecd(mwifiex: corrections in PCIe event skb)
Signed-off-by: default avatarAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: default avatarKalle Valo <kvalo@codeaurora.org>
parent 17e524b1
...@@ -1815,7 +1815,6 @@ static int mwifiex_pcie_event_complete(struct mwifiex_adapter *adapter, ...@@ -1815,7 +1815,6 @@ static int mwifiex_pcie_event_complete(struct mwifiex_adapter *adapter,
if (!card->evt_buf_list[rdptr]) { if (!card->evt_buf_list[rdptr]) {
skb_push(skb, INTF_HEADER_LEN); skb_push(skb, INTF_HEADER_LEN);
skb_put(skb, MAX_EVENT_SIZE - skb->len); skb_put(skb, MAX_EVENT_SIZE - skb->len);
memset(skb->data, 0, MAX_EVENT_SIZE);
if (mwifiex_map_pci_memory(adapter, skb, if (mwifiex_map_pci_memory(adapter, skb,
MAX_EVENT_SIZE, MAX_EVENT_SIZE,
PCI_DMA_FROMDEVICE)) PCI_DMA_FROMDEVICE))
......
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