linux-kernel - [PATCH] usb: core: config: Use USB API functions rather than constants

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Message-Id: <20250519061317.724602-1-nichen@iscas.ac.cn>
Date: Mon, 19 May 2025 14:13:17 +0800
From: Chen Ni <nichen@...as.ac.cn>
To: gregkh@...uxfoundation.org,
	stern@...land.harvard.edu,
	krzysztof.kozlowski@...aro.org,
	snovitoll@...il.com,
	amardeep.rai@...el.com,
	r.kannappan@...el.com
Cc: linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Chen Ni <nichen@...as.ac.cn>
Subject: [PATCH] usb: core: config: 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/core/config.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c
index 13bd4ec4ea5f..fc0cfd94cbab 100644
--- a/drivers/usb/core/config.c
+++ b/drivers/usb/core/config.c
@@ -307,7 +307,7 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno,
 		goto skip_to_next_endpoint_or_interface_descriptor;
 	}
 
-	i = d->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
+	i = usb_endpoint_num(d);
 	if (i == 0) {
 		dev_notice(ddev, "config %d interface %d altsetting %d has an "
 		    "invalid descriptor for endpoint zero, skipping\n",
-- 
2.25.1