From: Felipe Balbi <balbi@ti.com>
Date: Fri, 4 May 2012 10:08:22 +0000 (+0300)
Subject: usb: dwc3: ep0: switch over to IS_ALIGNED
X-Git-Tag: v3.6-rc1~101^2~24^2~34^2~39
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=c74c6d4a024d95e81283ee4c38be6fa7baee27f9;p=platform%2Fkernel%2Flinux-exynos.git

usb: dwc3: ep0: switch over to IS_ALIGNED

IS_ALIGNED provides a much faster operation for
checking proper size alignment then a modulo
operation. Let's use it.

Reported-by: Pratyush Anand <pratyush.anand@st.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---

diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c
index 15ec36e..477127a 100644
--- a/drivers/usb/dwc3/ep0.c
+++ b/drivers/usb/dwc3/ep0.c
@@ -799,7 +799,7 @@ static void __dwc3_ep0_do_control_data(struct dwc3 *dwc,
 		ret = dwc3_ep0_start_trans(dwc, dep->number,
 				dwc->ctrl_req_addr, 0,
 				DWC3_TRBCTL_CONTROL_DATA);
-	} else if ((req->request.length % dep->endpoint.maxpacket)
+	} else if (!IS_ALIGNED(req->request.length, dep->endpoint.maxpacket)
 			&& (dep->number == 0)) {
 		u32		transfer_size;