linux-kernel - [PATCH] usb: gadget: pxa27x: Remove redundant assignment to is

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Message-Id: <20171107143125.5548-1-colin.king@canonical.com>
Date:   Tue,  7 Nov 2017 14:31:25 +0000
From:   Colin King <colin.king@...onical.com>
To:     Daniel Mack <daniel@...que.org>,
        Haojian Zhuang <haojian.zhuang@...il.com>,
        Robert Jarzmik <robert.jarzmik@...e.fr>,
        Felipe Balbi <balbi@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-arm-kernel@...ts.infradead.org, linux-usb@...r.kernel.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] usb: gadget: pxa27x: Remove redundant assignment to is_short

From: Colin Ian King <colin.king@...onical.com>

Variable is set to zero but this value is never read as it is
overwritten with a new value later on, hence it is a redundant
assignment and can be removed. Cleans up clang warning:

drivers/usb/gadget/udc/pxa27x_udc.c:1141:2: warning: Value stored
to 'dev' is never read

Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 drivers/usb/gadget/udc/pxa27x_udc.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/usb/gadget/udc/pxa27x_udc.c b/drivers/usb/gadget/udc/pxa27x_udc.c
index 14606f340325..e3d362cc47db 100644
--- a/drivers/usb/gadget/udc/pxa27x_udc.c
+++ b/drivers/usb/gadget/udc/pxa27x_udc.c
@@ -984,8 +984,6 @@ static int write_fifo(struct pxa_ep *ep, struct pxa27x_request *req)
 
 	max = ep->fifo_size;
 	do {
-		is_short = 0;
-
 		udccsr = udc_ep_readl(ep, UDCCSR);
 		if (udccsr & UDCCSR_PC) {
 			ep_vdbg(ep, "Clearing Transmit Complete, udccsr=%x\n",
-- 
2.14.1