linux-kernel - [PATCH 23/32] usb: gadget: udc: max3420_udc: Remove set, but never checked variable 'addr'

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Message-Id: <20200706133341.476881-24-lee.jones@linaro.org>
Date:   Mon,  6 Jul 2020 14:33:32 +0100
From:   Lee Jones <lee.jones@...aro.org>
To:     gregkh@...uxfoundation.org
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-usb@...r.kernel.org, Lee Jones <lee.jones@...aro.org>,
        Felipe Balbi <balbi@...nel.org>,
        Jassi Brar <jaswinder.singh@...aro.org>,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>
Subject: [PATCH 23/32] usb: gadget: udc: max3420_udc: Remove set, but never checked variable 'addr'

Fixes the following W=1 kernel build warning(s):

 drivers/usb/gadget/udc/max3420_udc.c: In function ‘max3420_handle_setup’:
 drivers/usb/gadget/udc/max3420_udc.c:626:5: warning: variable ‘addr’ set but not used [-Wunused-but-set-variable]
 626 | u8 addr;
 | ^~~~

Cc: Felipe Balbi <balbi@...nel.org>
Cc: Jassi Brar <jaswinder.singh@...aro.org>
Cc: Christophe JAILLET <christophe.jaillet@...adoo.fr>
Signed-off-by: Lee Jones <lee.jones@...aro.org>
---
 drivers/usb/gadget/udc/max3420_udc.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/usb/gadget/udc/max3420_udc.c b/drivers/usb/gadget/udc/max3420_udc.c
index 23f33946d80c4..52884bae4af11 100644
--- a/drivers/usb/gadget/udc/max3420_udc.c
+++ b/drivers/usb/gadget/udc/max3420_udc.c
@@ -623,7 +623,6 @@ static void max3420_set_clear_feature(struct max3420_udc *udc)
 static void max3420_handle_setup(struct max3420_udc *udc)
 {
 	struct usb_ctrlrequest setup;
-	u8 addr;
 
 	spi_rd_buf(udc, MAX3420_REG_SUDFIFO, (void *)&setup, 8);
 
@@ -647,7 +646,7 @@ static void max3420_handle_setup(struct max3420_udc *udc)
 				USB_TYPE_STANDARD | USB_RECIP_DEVICE)) {
 			break;
 		}
-		addr = spi_rd8_ack(udc, MAX3420_REG_FNADDR, 1);
+		spi_rd8_ack(udc, MAX3420_REG_FNADDR, 1);
 		dev_dbg(udc->dev, "Assigned Address=%d\n", udc->setup.wValue);
 		return;
 	case USB_REQ_CLEAR_FEATURE:
-- 
2.25.1