linux-kernel - Re: [PATCH] reset: lpc18xx: Make reset_control

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Date:	Tue, 9 Feb 2016 04:31:37 +0800
From:	kbuild test robot <lkp@...el.com>
To:	Philipp Zabel <p.zabel@...gutronix.de>
Cc:	kbuild-all@...org, linux-kernel@...r.kernel.org,
	Joachim Eastwood <manabian@...il.com>,
	Philipp Zabel <p.zabel@...gutronix.de>
Subject: Re: [PATCH] reset: lpc18xx: Make reset_control_ops const

Hi Philipp,

[auto build test WARNING on v4.5-rc3]
[also build test WARNING on next-20160208]
[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/Philipp-Zabel/reset-lpc18xx-Make-reset_control_ops-const/20160208-213147
config: arm-lpc18xx_defconfig (attached as .config)
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=arm 

All warnings (new ones prefixed by >>):

   drivers/reset/reset-lpc18xx.c: In function 'lpc18xx_rgu_probe':
>> drivers/reset/reset-lpc18xx.c:197:16: warning: assignment discards 'const' qualifier from pointer target type
     rc->rcdev.ops = &lpc18xx_rgu_ops;
                   ^

vim +/const +197 drivers/reset/reset-lpc18xx.c

c392b65b Joachim Eastwood 2015-05-06  181  	if (ret) {
c392b65b Joachim Eastwood 2015-05-06  182  		dev_err(&pdev->dev, "unable to enable delay clock\n");
c392b65b Joachim Eastwood 2015-05-06  183  		goto dis_clk_reg;
c392b65b Joachim Eastwood 2015-05-06  184  	}
c392b65b Joachim Eastwood 2015-05-06  185  
c392b65b Joachim Eastwood 2015-05-06  186  	fcclk = clk_get_rate(rc->clk_reg) / USEC_PER_SEC;
c392b65b Joachim Eastwood 2015-05-06  187  	firc = clk_get_rate(rc->clk_delay) / USEC_PER_SEC;
c392b65b Joachim Eastwood 2015-05-06  188  	if (fcclk == 0 || firc == 0)
c392b65b Joachim Eastwood 2015-05-06  189  		rc->delay_us = 2;
c392b65b Joachim Eastwood 2015-05-06  190  	else
c392b65b Joachim Eastwood 2015-05-06  191  		rc->delay_us = DIV_ROUND_UP(fcclk, firc * firc);
c392b65b Joachim Eastwood 2015-05-06  192  
c392b65b Joachim Eastwood 2015-05-06  193  	spin_lock_init(&rc->lock);
c392b65b Joachim Eastwood 2015-05-06  194  
c392b65b Joachim Eastwood 2015-05-06  195  	rc->rcdev.owner = THIS_MODULE;
c392b65b Joachim Eastwood 2015-05-06  196  	rc->rcdev.nr_resets = 64;
c392b65b Joachim Eastwood 2015-05-06 @197  	rc->rcdev.ops = &lpc18xx_rgu_ops;
c392b65b Joachim Eastwood 2015-05-06  198  	rc->rcdev.of_node = pdev->dev.of_node;
c392b65b Joachim Eastwood 2015-05-06  199  
c392b65b Joachim Eastwood 2015-05-06  200  	platform_set_drvdata(pdev, rc);
c392b65b Joachim Eastwood 2015-05-06  201  
c392b65b Joachim Eastwood 2015-05-06  202  	ret = reset_controller_register(&rc->rcdev);
c392b65b Joachim Eastwood 2015-05-06  203  	if (ret) {
c392b65b Joachim Eastwood 2015-05-06  204  		dev_err(&pdev->dev, "unable to register device\n");
c392b65b Joachim Eastwood 2015-05-06  205  		goto dis_clks;

:::::: The code at line 197 was first introduced by commit
:::::: c392b65ba853f653cff3d1c7de2138bd6906d536 reset: add driver for lpc18xx rgu

:::::: TO: Joachim Eastwood <manabian@...il.com>
:::::: CC: Philipp Zabel <p.zabel@...gutronix.de>

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