From 3c373454a9f288d81d5780e4a4ed9cfe245552da Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Thu, 2 Jul 2020 15:46:03 +0100 Subject: [PATCH] usb: dwc3: dwc3-omap: Do not read DMA status MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Commit af566a0be6e49 ("usb: dwc3: omap: get rid of dma_status") rendered reading DMA status from the H/W even more redundant. The variable hasn't been read/used since 2016. Remove the set but unused variable and the call which populates it. Fixes the following W=1 warning: drivers/usb/dwc3/dwc3-omap.c: In function ‘dwc3_omap_probe’: drivers/usb/dwc3/dwc3-omap.c:460:8: warning: variable ‘reg’ set but not used [-Wunused-but-set-variable] 460 | u32 reg; | ^~~ Cc: Felipe Balbi Cc: Andrzej Siewior Cc: linux-omap@vger.kernel.org Signed-off-by: Lee Jones Link: https://lore.kernel.org/r/20200702144625.2533530-9-lee.jones@linaro.org Signed-off-by: Greg Kroah-Hartman --- drivers/usb/dwc3/dwc3-omap.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/drivers/usb/dwc3/dwc3-omap.c b/drivers/usb/dwc3/dwc3-omap.c index 8c3de2d..11288a3 100644 --- a/drivers/usb/dwc3/dwc3-omap.c +++ b/drivers/usb/dwc3/dwc3-omap.c @@ -1,5 +1,5 @@ // SPDX-License-Identifier: GPL-2.0 -/** +/* * dwc3-omap.c - OMAP Specific Glue layer * * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com @@ -457,8 +457,6 @@ static int dwc3_omap_probe(struct platform_device *pdev) int ret; int irq; - u32 reg; - void __iomem *base; if (!node) { @@ -503,9 +501,6 @@ static int dwc3_omap_probe(struct platform_device *pdev) dwc3_omap_map_offset(omap); dwc3_omap_set_utmi_mode(omap); - /* check the DMA Status */ - reg = dwc3_omap_readl(omap->base, USBOTGSS_SYSCONFIG); - ret = dwc3_omap_extcon_register(omap); if (ret < 0) goto err1; -- 2.7.4