linux-kernel - [PATCH] ALSA: usb: fcp: Use USB API functions rather than constants

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Message-Id: <20250516070938.12520-1-nichen@iscas.ac.cn>
Date: Fri, 16 May 2025 15:09:38 +0800
From: Chen Ni <nichen@...as.ac.cn>
To: g@...vu,
	perex@...ex.cz,
	tiwai@...e.com
Cc: linux-sound@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Chen Ni <nichen@...as.ac.cn>
Subject: [PATCH] ALSA: usb: fcp: 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>
---
 sound/usb/fcp.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/sound/usb/fcp.c b/sound/usb/fcp.c
index 7df65041ace5..98f9964311a7 100644
--- a/sound/usb/fcp.c
+++ b/sound/usb/fcp.c
@@ -1092,8 +1092,7 @@ static int fcp_find_fc_interface(struct usb_mixer_interface *mixer)
 
 		epd = get_endpoint(intf->altsetting, 0);
 		private->bInterfaceNumber = desc->bInterfaceNumber;
-		private->bEndpointAddress = epd->bEndpointAddress &
-			USB_ENDPOINT_NUMBER_MASK;
+		private->bEndpointAddress = usb_endpoint_num(epd);
 		private->wMaxPacketSize = le16_to_cpu(epd->wMaxPacketSize);
 		private->bInterval = epd->bInterval;
 		return 0;
-- 
2.25.1