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Date:   Mon, 1 Nov 2021 00:09:26 +0800
From:   kernel test robot <lkp@...el.com>
To:     Sam Protsenko <semen.protsenko@...aro.org>,
        Wim Van Sebroeck <wim@...ux-watchdog.org>,
        Guenter Roeck <linux@...ck-us.net>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzk@...nel.org>
Cc:     kbuild-all@...ts.01.org, linux-watchdog@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org
Subject: Re: [PATCH v2 12/12] watchdog: s3c2410: Add Exynos850 support

Hi Sam,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on robh/for-next]
[also build test ERROR on groeck-staging/hwmon-next linus/master v5.15-rc7 next-20211029]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Sam-Protsenko/watchdog-s3c2410-Add-Exynos850-support/20211031-202352
base:   https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next
config: xtensa-randconfig-r012-20211031 (attached as .config)
compiler: xtensa-linux-gcc (GCC) 11.2.0
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
        # https://github.com/0day-ci/linux/commit/ff70b806cc12adc068bb54865f81d3aa29a69471
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Sam-Protsenko/watchdog-s3c2410-Add-Exynos850-support/20211031-202352
        git checkout ff70b806cc12adc068bb54865f81d3aa29a69471
        # save the attached .config to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=xtensa SHELL=/bin/bash drivers/watchdog/

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

All errors (new ones prefixed by >>):

   drivers/watchdog/s3c2410_wdt.c: In function 's3c2410_get_wdt_drv_data':
>> drivers/watchdog/s3c2410_wdt.c:592:25: error: 'drv_data_exynos850' undeclared (first use in this function)
     592 |         if (variant == &drv_data_exynos850) {
         |                         ^~~~~~~~~~~~~~~~~~
   drivers/watchdog/s3c2410_wdt.c:592:25: note: each undeclared identifier is reported only once for each function it appears in


vim +/drv_data_exynos850 +592 drivers/watchdog/s3c2410_wdt.c

   571	
   572	static inline const struct s3c2410_wdt_variant *
   573	s3c2410_get_wdt_drv_data(struct platform_device *pdev)
   574	{
   575		const struct s3c2410_wdt_variant *variant;
   576		struct s3c2410_wdt_variant *data;
   577		struct device *dev = &pdev->dev;
   578	
   579		variant = of_device_get_match_data(dev);
   580		if (!variant) {
   581			/* Device matched by platform_device_id */
   582			variant = (struct s3c2410_wdt_variant *)
   583				   platform_get_device_id(pdev)->driver_data;
   584		}
   585	
   586		/* Have to copy driver data over to keep its const qualifier intact */
   587		data = devm_kmemdup(dev, variant, sizeof(*variant), GFP_KERNEL);
   588		if (!data)
   589			return NULL;
   590	
   591		/* Populate missing fields for Exynos850 w.r.t. cluster index */
 > 592		if (variant == &drv_data_exynos850) {
   593			u32 index;
   594			int err;
   595	
   596			err = of_property_read_u32(dev->of_node, "samsung,index",
   597						   &index);
   598			if (err) {
   599				dev_err(dev, "failed to get cluster index\n");
   600				return NULL;
   601			}
   602	
   603			switch (index) {
   604			case 0:
   605				data->mask_reset_reg = EXYNOS850_CLUSTER0_NONCPU_INT_EN;
   606				data->rst_stat_bit = EXYNOS850_CLUSTER0_WDTRESET_BIT;
   607				data->cnt_en_reg = EXYNOS850_CLUSTER0_NONCPU_OUT;
   608				break;
   609			case 1:
   610				data->mask_reset_reg = EXYNOS850_CLUSTER1_NONCPU_INT_EN;
   611				data->rst_stat_bit = EXYNOS850_CLUSTER1_WDTRESET_BIT;
   612				data->cnt_en_reg = EXYNOS850_CLUSTER1_NONCPU_OUT;
   613				break;
   614			default:
   615				dev_err(dev, "wrong cluster index: %u\n", index);
   616				return NULL;
   617			}
   618		}
   619	
   620		return data;
   621	}
   622	

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

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