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

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Message-Id: <20250618065750.816965-1-nichen@iscas.ac.cn>
Date: Wed, 18 Jun 2025 14:57:50 +0800
From: Chen Ni <nichen@...as.ac.cn>
To: gregkh@...uxfoundation.org,
	tglx@...utronix.de,
	stern@...land.harvard.edu,
	andreyknvl@...il.com,
	sylv@...v.io,
	u.kleine-koenig@...libre.com,
	yanzhen@...o.com,
	namcao@...utronix.de,
	krzysztof.kozlowski@...aro.org
Cc: linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Chen Ni <nichen@...as.ac.cn>
Subject: [PATCH] usb: gadget: dummy_hcd: Use USB API functions rather than constants

Use the function usb_endpoint_num() 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)

Signed-off-by: Chen Ni <nichen@...as.ac.cn>
---
 drivers/usb/gadget/udc/dummy_hcd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/gadget/udc/dummy_hcd.c b/drivers/usb/gadget/udc/dummy_hcd.c
index 27c9699365ab..21dbfb0b3bac 100644
--- a/drivers/usb/gadget/udc/dummy_hcd.c
+++ b/drivers/usb/gadget/udc/dummy_hcd.c
@@ -623,7 +623,7 @@ static int dummy_enable(struct usb_ep *_ep,
 
 	dev_dbg(udc_dev(dum), "enabled %s (ep%d%s-%s) maxpacket %d stream %s\n",
 		_ep->name,
-		desc->bEndpointAddress & 0x0f,
+		usb_endpoint_num(desc),
 		(desc->bEndpointAddress & USB_DIR_IN) ? "in" : "out",
 		usb_ep_type_string(usb_endpoint_type(desc)),
 		max, str_enabled_disabled(ep->stream_en));
-- 
2.25.1