linux-kernel - [PATCH] usb: gadget: m66592-udc: Use USB API functions rather than constants

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Message-Id: <20250618070714.817146-1-nichen@iscas.ac.cn>
Date: Wed, 18 Jun 2025 15:07:14 +0800
From: Chen Ni <nichen@...as.ac.cn>
To: gregkh@...uxfoundation.org,
	tglx@...utronix.de,
	u.kleine-koenig@...libre.com,
	mingo@...nel.org
Cc: linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Chen Ni <nichen@...as.ac.cn>
Subject: [PATCH] usb: gadget: m66592-udc: Use USB API functions rather than constants

Use the function usb_endpoint_num() and usb_endpoint_type()
rather than constants.

The Coccinelle semantic patch is as follows:

@@ struct usb_endpoint_descriptor *epd; @@

- (epd->bEndpointAddress & \(USB_ENDPOINT_NUMBER_MASK\|0x0f\))
+ usb_endpoint_num(epd)

@@ struct usb_endpoint_descriptor *epd; @@

- (epd->bmAttributes & \(USB_ENDPOINT_XFERTYPE_MASK\|3\))
+ usb_endpoint_type(epd)

Signed-off-by: Chen Ni <nichen@...as.ac.cn>
---
 drivers/usb/gadget/udc/m66592-udc.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/gadget/udc/m66592-udc.c b/drivers/usb/gadget/udc/m66592-udc.c
index 715791737499..54885175b8a4 100644
--- a/drivers/usb/gadget/udc/m66592-udc.c
+++ b/drivers/usb/gadget/udc/m66592-udc.c
@@ -359,7 +359,7 @@ static void m66592_ep_setting(struct m66592 *m66592, struct m66592_ep *ep,
 	ep->pipenum = pipenum;
 	ep->ep.maxpacket = usb_endpoint_maxp(desc);
 	m66592->pipenum2ep[pipenum] = ep;
-	m66592->epaddr2ep[desc->bEndpointAddress&USB_ENDPOINT_NUMBER_MASK] = ep;
+	m66592->epaddr2ep[usb_endpoint_num(desc)] = ep;
 	INIT_LIST_HEAD(&ep->queue);
 }
 
@@ -391,7 +391,7 @@ static int alloc_pipe_config(struct m66592_ep *ep,
 
 	BUG_ON(ep->pipenum);
 
-	switch (desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) {
+	switch (usb_endpoint_type(desc)) {
 	case USB_ENDPOINT_XFER_BULK:
 		if (m66592->bulk >= M66592_MAX_NUM_BULK) {
 			if (m66592->isochronous >= M66592_MAX_NUM_ISOC) {
@@ -433,7 +433,7 @@ static int alloc_pipe_config(struct m66592_ep *ep,
 	}
 	ep->type = info.type;
 
-	info.epnum = desc->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
+	info.epnum = usb_endpoint_num(desc);
 	info.maxpacket = usb_endpoint_maxp(desc);
 	info.interval = desc->bInterval;
 	if (desc->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
-- 
2.25.1