From: Lee Jones <lee.jones@linaro.org>
To: gregkh@linuxfoundation.org
Cc: linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org,
Lee Jones <lee.jones@linaro.org>, Felipe Balbi <balbi@kernel.org>,
Andrzej Siewior <bigeasy@linutronix.de>,
linux-omap@vger.kernel.org
Subject: [PATCH 08/30] usb: dwc3: dwc3-omap: Do not read DMA status
Date: Thu, 2 Jul 2020 15:46:03 +0100 [thread overview]
Message-ID: <20200702144625.2533530-9-lee.jones@linaro.org> (raw)
In-Reply-To: <20200702144625.2533530-1-lee.jones@linaro.org>
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 <balbi@kernel.org>
Cc: Andrzej Siewior <bigeasy@linutronix.de>
Cc: linux-omap@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
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 8c3de2d258bf7..11288a370828c 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;
--
2.25.1
next prev parent reply other threads:[~2020-07-02 14:49 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-02 14:45 [PATCH 00/30] Fix a bunch of W=1 issues in USB Lee Jones
2020-07-02 14:45 ` [PATCH 01/30] usb: phy: phy: Fix-up a whole bunch of formatting issues Lee Jones
2020-07-02 14:45 ` [PATCH 02/30] usb: host: pci-quirks: Demote function header from kerneldoc to comment block Lee Jones
2020-07-03 10:22 ` Mathias Nyman
2020-07-02 14:45 ` [PATCH 03/30] usb: common: debug: Demote comment blocks which are obviously not kerneldoc Lee Jones
2020-07-02 14:45 ` [PATCH 04/30] usb: common: usb-conn-gpio: Demote comment block which is clearly " Lee Jones
2020-07-02 14:46 ` [PATCH 05/30] usb: dwc3: drd: File headers are not doc headers Lee Jones
2020-07-02 14:46 ` [PATCH 06/30] usb: dwc3: ulpi: " Lee Jones
2020-07-02 14:46 ` [PATCH 07/30] usb: common: ulpi: Fix a few kerneldoc related issues Lee Jones
2020-07-02 14:46 ` Lee Jones [this message]
2020-07-02 14:46 ` [PATCH 09/30] usb: dwc2: gadget: Do not read GINTMSK2 Lee Jones
2020-07-02 14:46 ` [PATCH 10/30] usb: dwc2: gadget: Remove assigned but never used 'maxsize' Lee Jones
2020-07-02 14:46 ` [PATCH 11/30] usb: dwc2: gadget: Avoid pointless read of EP control register Lee Jones
2020-07-03 7:29 ` Greg KH
2020-07-03 7:38 ` Minas Harutyunyan
2020-07-03 7:43 ` Greg KH
2020-07-03 8:35 ` Minas Harutyunyan
2020-07-03 17:16 ` Lee Jones
2020-07-04 6:04 ` Greg KH
2020-07-02 14:46 ` [PATCH 12/30] usb: host: ehci-omap: Provide documentation for ehci_hcd_omap_probe()'s arg 'pdev' Lee Jones
2020-07-02 14:46 ` [PATCH 13/30] usb: cdns3: core: Fix incorrect formatting and misspelled function arg docs Lee Jones
2020-07-02 14:46 ` [PATCH 14/30] usb: cdns3: ep0: Fix a bunch of kerneldoc issues Lee Jones
2020-07-02 14:46 ` [PATCH 15/30] usb: dwc3: dwc3-haps: Function headers are not suitable for kerneldoc Lee Jones
2020-07-02 14:46 ` [PATCH 16/30] usb: mtu3: mtu3_trace: " Lee Jones
2020-07-03 1:41 ` Chunfeng Yun
2020-07-02 14:46 ` [PATCH 17/30] usb: cdns3: gadget: Fix a bunch of kernel doc issues Lee Jones
2020-07-02 14:46 ` [PATCH 18/30] usb: dwc3: dwc3-of-simple: Function headers are not good candidates for kerneldoc Lee Jones
2020-07-02 14:46 ` [PATCH 19/30] usb: host: isp1362: Mark the many unused ISP1362_REG entries as __maybe_unused Lee Jones
2020-07-02 14:46 ` [PATCH 20/30] usb: host: ohci-at91: Demote kerneldoc headers down to basic comment blocks Lee Jones
2020-07-02 14:46 ` [PATCH 21/30] usb: host: ohci: Mark cc_to_error as __maybe_unused Lee Jones
2020-07-02 14:46 ` [PATCH 22/30] usb: cdns3: ep0: Move 'zlp' description to appropriate function header Lee Jones
2020-07-02 14:46 ` [PATCH 23/30] usb: host: oxu210hp-hcd: Move declaration of 'qtd' into 'ifdef OXU_URB_TRACE' Lee Jones
2020-07-03 7:36 ` Greg KH
2020-07-02 14:46 ` [PATCH 24/30] usb: mtu3: mtu3_trace: Supply missing mtu3_debug.h include file Lee Jones
2020-07-03 5:41 ` kernel test robot
2020-07-02 14:46 ` [PATCH 25/30] usb: mtu3: mtu3_core: Demote obvious misuse of kerneldoc to standard comment block Lee Jones
2020-07-02 14:46 ` [PATCH 26/30] usb: c67x00: c67x00-ll-hpi: Demote obvious misuse of kerneldoc to standard comment blocks Lee Jones
2020-07-02 14:46 ` [PATCH 27/30] usb: class: cdc-wdm: Provide description for usb_cdc_wdm_register()'s manage_power arg Lee Jones
2020-07-03 7:32 ` Greg KH
2020-07-02 14:46 ` [PATCH 28/30] usb: c67x00: c67x00-hcd: Demote obvious misuse of kerneldoc to standard comment blocks Lee Jones
2020-07-03 7:34 ` Greg KH
2020-07-02 14:46 ` [PATCH 29/30] usb: class: usbtmc: File headers are not good candidates for kerneldoc Lee Jones
2020-07-02 14:46 ` [PATCH 30/30] usb: c67x00: c67x00-sched: Demote obvious misuse of kerneldoc to standard comment blocks Lee Jones
2020-07-03 7:37 ` [PATCH 00/30] Fix a bunch of W=1 issues in USB Greg KH
2020-07-03 17:21 ` Lee Jones
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