Commit 32c9cf22 authored Dec 13, 2012 by Armando Visconti Committed by Felipe Balbi Jan 10, 2013

usb: gadget zero: avoid unnecessary reinit of data in f_sourcesink



In the IN case, since the USB request is allocated only when
the source/sink function is started and never freed, the USB ept
buffer needs to be initialized only at the beginning. This change
results into a more performant g_zero module, especially when
'pattern=1' is selected.

Signed-off-by: Armando Visconti <armando.visconti@st.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

parent 8f900a9a

drivers/usb/gadget/f_sourcesink.c

+1 −2

Original line number	Diff line number	Diff line
		@@ -531,8 +531,7 @@ static void source_sink_complete(struct usb_ep ep, struct usb_request req)
		check_read_data(ss, req);
		if (pattern != 2)
		memset(req->buf, 0x55, req->length);
		} else
		reinit_write_data(ep, req);
		}
		break;

		/* this endpoint is normally active while we're configured */