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: 2728cecdc7d6bf3d21(mwifiex: corrections in PCIe event skb) Signed-off-by: Amitkumar Karwar <[email protected]> --- drivers/net/wireless/mwifiex/pcie.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/net/wireless/mwifiex/pcie.c b/drivers/net/wireless/mwifiex/pcie.c index 408b684..21192b6 100644 --- a/drivers/net/wireless/mwifiex/pcie.c +++ b/drivers/net/wireless/mwifiex/pcie.c @@ -1815,7 +1815,6 @@ static int mwifiex_pcie_event_complete(struct mwifiex_adapter *adapter, if (!card->evt_buf_list[rdptr]) { skb_push(skb, INTF_HEADER_LEN); skb_put(skb, MAX_EVENT_SIZE - skb->len); - memset(skb->data, 0, MAX_EVENT_SIZE); if (mwifiex_map_pci_memory(adapter, skb, MAX_EVENT_SIZE, PCI_DMA_FROMDEVICE)) -- 1.8.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
