linux-kernel - Re: [PATCH v3 2/2] mmc: sdhci-of-dwcmshc: Add support for Eswin EIC7700

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Message-ID: <202510110904.0H6EStUB-lkp@intel.com>
Date: Sat, 11 Oct 2025 09:54:24 +0800
From: kernel test robot <lkp@...el.com>
To: hehuan1@...incomputing.com, ulf.hansson@...aro.org, robh@...nel.org,
	krzk+dt@...nel.org, conor+dt@...nel.org, jszhang@...nel.org,
	adrian.hunter@...el.com, p.zabel@...gutronix.de,
	linux-mmc@...r.kernel.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: oe-kbuild-all@...ts.linux.dev, ningyu@...incomputing.com,
	linmin@...incomputing.com, pinkesh.vaghela@...fochips.com,
	xuxiang@...incomputing.com, luyulin@...incomputing.com,
	dongxuyang@...incomputing.com, zhangsenchuan@...incomputing.com,
	weishangjuan@...incomputing.com, lizhi2@...incomputing.com,
	caohang@...incomputing.com, hehuan1@...incomputing.com
Subject: Re: [PATCH v3 2/2] mmc: sdhci-of-dwcmshc: Add support for Eswin
 EIC7700

Hi,

kernel test robot noticed the following build warnings:

[auto build test WARNING on linus/master]
[also build test WARNING on ulf-hansson-mmc-mirror/next v6.17 next-20251010]
[cannot apply to robh/for-next pza/reset/next pza/imx-drm/next]
[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#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/hehuan1-eswincomputing-com/dt-bindings-mmc-sdhci-of-dwcmshc-Add-Eswin-EIC7700/20251010-174323
base:   linus/master
patch link:    https://lore.kernel.org/r/20251010094109.1613-1-hehuan1%40eswincomputing.com
patch subject: [PATCH v3 2/2] mmc: sdhci-of-dwcmshc: Add support for Eswin EIC7700
config: x86_64-randconfig-005-20251011 (https://download.01.org/0day-ci/archive/20251011/202510110904.0H6EStUB-lkp@intel.com/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251011/202510110904.0H6EStUB-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202510110904.0H6EStUB-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/mmc/host/sdhci-of-dwcmshc.c:300:13: error: redefinition of 'dwcmshc_enable_card_clk'
     300 | static void dwcmshc_enable_card_clk(struct sdhci_host *host)
         |             ^~~~~~~~~~~~~~~~~~~~~~~
   drivers/mmc/host/sdhci-of-dwcmshc.c:289:13: note: previous definition of 'dwcmshc_enable_card_clk' with type 'void(struct sdhci_host *)'
     289 | static void dwcmshc_enable_card_clk(struct sdhci_host *host)
         |             ^~~~~~~~~~~~~~~~~~~~~~~
   drivers/mmc/host/sdhci-of-dwcmshc.c: In function 'sdhci_eic7700_set_clock':
   drivers/mmc/host/sdhci-of-dwcmshc.c:1179:9: error: implicit declaration of function 'dwcmshc_disable_card_clk'; did you mean 'dwcmshc_enable_card_clk'? [-Wimplicit-function-declaration]
    1179 |         dwcmshc_disable_card_clk(host);
         |         ^~~~~~~~~~~~~~~~~~~~~~~~
         |         dwcmshc_enable_card_clk
   drivers/mmc/host/sdhci-of-dwcmshc.c: At top level:
>> drivers/mmc/host/sdhci-of-dwcmshc.c:289:13: warning: 'dwcmshc_enable_card_clk' defined but not used [-Wunused-function]
     289 | static void dwcmshc_enable_card_clk(struct sdhci_host *host)
         |             ^~~~~~~~~~~~~~~~~~~~~~~


vim +/dwcmshc_enable_card_clk +289 drivers/mmc/host/sdhci-of-dwcmshc.c

   288	
 > 289	static void dwcmshc_enable_card_clk(struct sdhci_host *host)
   290	{
   291		u16 ctrl;
   292	
   293		ctrl = sdhci_readw(host, SDHCI_CLOCK_CONTROL);
   294		if ((ctrl & SDHCI_CLOCK_INT_EN) && !(ctrl & SDHCI_CLOCK_CARD_EN)) {
   295			ctrl |= SDHCI_CLOCK_CARD_EN;
   296			sdhci_writew(host, ctrl, SDHCI_CLOCK_CONTROL);
   297		}
   298	}
   299	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki