linux-kernel - Re: [PATCH v1 2/2] usb: musb: pic32: Add USB DRC driver for PIC32 OTG controller.

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Date:	Thu, 7 Apr 2016 20:10:28 +0800
From:	kbuild test robot <lkp@...el.com>
To:	Purna Chandra Mandal <purna.mandal@...rochip.com>
Cc:	kbuild-all@...org, linux-kernel@...r.kernel.org,
	Rob Herring <robh+dt@...nel.org>, linux-usb@...r.kernel.org,
	Joshua Henderson <digitalpeer@...italpeer.com>,
	Cristian Birsan <cristian.birsan@...rochip.com>,
	Purna Chandra Mandal <purna.mandal@...rochip.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Bin Liu <b-liu@...com>, Kumar Gala <galak@...eaurora.org>
Subject: Re: [PATCH v1 2/2] usb: musb: pic32: Add USB DRC driver for PIC32
 OTG controller.

Hi Cristian,

[auto build test ERROR on balbi-usb/next]
[also build test ERROR on v4.6-rc2 next-20160407]
[if your patch is applied to the wrong git tree, please drop us a note to help improving the system]

url:    https://github.com/0day-ci/linux/commits/Purna-Chandra-Mandal/dt-bindings-usb-Add-bindings-for-PIC32-MUSB-driver/20160407-192020
base:   https://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb.git next
config: i386-allmodconfig (attached as .config)
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All errors (new ones prefixed by >>):

   drivers/usb/musb/pic32.c: In function 'pic32_read_fifo':
>> drivers/usb/musb/pic32.c:339:2: error: implicit declaration of function 'readsl' [-Werror=implicit-function-declaration]
     readsl(fifo, dst, len / 4);
     ^
   cc1: some warnings being treated as errors

vim +/readsl +339 drivers/usb/musb/pic32.c

   333	static void pic32_read_fifo(struct musb_hw_ep *hw_ep, u16 len, u8 *dst)
   334	{
   335		void __iomem *fifo = hw_ep->fifo;
   336		u32 val, rem = len % 4;
   337	
   338		/* USB stack ensures dst is always 32bit aligned. */
 > 339		readsl(fifo, dst, len / 4);
   340	
   341		if (rem) {
   342			dst += len & ~0x03;

---
0-DAY kernel test infrastructure                Open Source Technology Center
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