[omap-audio:peter/linux-next-wip 56/62] sound/soc/ti/omap-mcasp.c:603:7: warning: variable 'fclk_rate' set but not used

[kernel test robot <lkp@intel.com>]

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tree:   https://github.com/omap-audio/linux-audio peter/linux-next-wip
head:   4267b3ab8fe441bf25983bf8288fd3025f67702f
commit: 179ec2bc789e81f433d7749acfe9a3a7dbf182e4 [56/62] omap: mcasp: add omap-mcasp.* and add to Kconfig, Makefile
config: x86_64-randconfig-a011-20210613 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project d2012d965d60c3258b3a69d024491698f8aec386)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install x86_64 cross compiling tool for clang build
        # apt-get install binutils-x86-64-linux-gnu
        # https://github.com/omap-audio/linux-audio/commit/179ec2bc789e81f433d7749acfe9a3a7dbf182e4
        git remote add omap-audio https://github.com/omap-audio/linux-audio
        git fetch --no-tags omap-audio peter/linux-next-wip
        git checkout 179ec2bc789e81f433d7749acfe9a3a7dbf182e4
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

>> sound/soc/ti/omap-mcasp.c:603:7: warning: variable 'fclk_rate' set but not used [-Wunused-but-set-variable]
           long fclk_rate;
                ^
   1 warning generated.


vim +/fclk_rate +603 sound/soc/ti/omap-mcasp.c

   598	
   599	static int asoc_mcasp_probe(struct platform_device *pdev)
   600	{
   601		struct omap_mcasp *mcasp;
   602		struct resource *res;
 > 603		long fclk_rate;
   604		int ret = 0;
   605	
   606		mcasp = devm_kzalloc(&pdev->dev, sizeof(struct omap_mcasp), GFP_KERNEL);
   607		if (!mcasp) {
   608			dev_err(&pdev->dev, "cannot allocate memory\n");
   609			return -ENOMEM;
   610		}
   611	
   612		spin_lock_init(&mcasp->lock);
   613	
   614		omap_mcasp_dai_dma_params[0].filter_data = "axevt";
   615	
   616		res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
   617		if (!res) {
   618			dev_err(&pdev->dev, "no resource\n");
   619			return -ENODEV;
   620		}
   621	
   622		mcasp->base = devm_ioremap_resource(&pdev->dev, res);
   623		if (!mcasp->base) {
   624			dev_err(&pdev->dev, "cannot remap\n");
   625			return -ENOMEM;
   626		}
   627	
   628		mcasp->irq = platform_get_irq(pdev, 0);
   629		if (mcasp->irq < 0) {
   630			dev_err(&pdev->dev, "invalid IRQ number\n");
   631			return mcasp->irq;
   632		}
   633	
   634		ret = devm_request_threaded_irq(&pdev->dev, mcasp->irq, NULL,
   635						omap_mcasp_irq_handler,
   636						IRQF_ONESHOT, "McASP", mcasp);
   637		if (ret) {
   638			dev_err(mcasp->dev, "IRQ request failed\n");
   639			return ret;
   640		}
   641	
   642		mcasp->fclk = clk_get(&pdev->dev, "fck");
   643		if (!mcasp->fclk) {
   644			dev_err(mcasp->dev, "cant get fck\n");
   645			return -ENODEV;
   646		}
   647	
   648		pm_runtime_enable(&pdev->dev);
   649		pm_runtime_get_sync(&pdev->dev);
   650	
   651		fclk_rate = clk_get_rate(mcasp->fclk);
   652	
   653		platform_set_drvdata(pdev, mcasp);
   654		mcasp->dev = &pdev->dev;
   655	
   656		ret = snd_soc_register_component(&pdev->dev, &omap_mcasp_component,
   657						 &omap_mcasp_dai, 1);
   658		if (ret < 0)
   659			goto err_dai;
   660	
   661		pm_runtime_put_sync(&pdev->dev);
   662	
   663		return sdma_pcm_platform_register(&pdev->dev, "axevt", NULL);;
   664	
   665	err_dai:
   666		pm_runtime_put_sync(&pdev->dev);
   667		pm_runtime_disable(&pdev->dev);
   668		return ret;
   669	}
   670	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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