From d70d84423cbc5d6d929640189cf204e693024309 Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Mon, 6 Feb 2012 13:40:17 +0200 Subject: [PATCH] usb: dwc3: gadget: avoid memcpy()ing event buffer We're only using the 4 byte events and memcpy() will make us slower. We can easily avoid that. Signed-off-by: Felipe Balbi --- drivers/usb/dwc3/gadget.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 2c4482f13a1..1f64e7c1c34 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -2223,7 +2223,8 @@ static irqreturn_t dwc3_process_event_buf(struct dwc3 *dwc, u32 buf) while (left > 0) { union dwc3_event event; - memcpy(&event.raw, (evt->buf + evt->lpos), sizeof(event.raw)); + event.raw = *(u32 *) (evt->buf + evt->lpos); + dwc3_process_event_entry(dwc, &event); /* * XXX we wrap around correctly to the next entry as almost all -- 2.39.5