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| author | Felipe Balbi <balbi@ti.com> | 2012-02-06 13:40:17 +0200 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2012-02-06 13:40:17 +0200 |
| commit | d70d84423cbc5d6d929640189cf204e693024309 (patch) | |
| tree | 0b237104ae511f4f4650d7d49bd4ca87d3d7ba31 /drivers/usb/dwc3/gadget.c | |
| parent | 8b5d6b0a4353d0e3517947f894be215750d681bb (diff) | |
| download | linux-d70d84423cbc5d6d929640189cf204e693024309.tar.bz2 | |
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 <balbi@ti.com>
Diffstat (limited to 'drivers/usb/dwc3/gadget.c')
| -rw-r--r-- | drivers/usb/dwc3/gadget.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 2c4482f13a12..1f64e7c1c34f 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 |