linux-kernel - Re: [PATCH v2 1/2] mmc: tmio: Add 64-bit read/write support for SD

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Message-ID: <202507301421.AmWhOZBk-lkp@intel.com>
Date: Wed, 30 Jul 2025 14:27:09 +0800
From: kernel test robot <lkp@...el.com>
To: Biju <biju.das.au@...il.com>,
	Wolfram Sang <wsa-dev@...g-engineering.com>,
	Ulf Hansson <ulf.hansson@...aro.org>
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
	Biju Das <biju.das.jz@...renesas.com>, linux-mmc@...r.kernel.org,
	linux-renesas-soc@...r.kernel.org, linux-kernel@...r.kernel.org,
	Geert Uytterhoeven <geert+renesas@...der.be>,
	Prabhakar Mahadev Lad <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: Re: [PATCH v2 1/2] mmc: tmio: Add 64-bit read/write support for
 SD_BUF0 in polling mode

Hi Biju,

kernel test robot noticed the following build errors:

[auto build test ERROR on linus/master]
[also build test ERROR on ulf-hansson-mmc-mirror/next v6.16 next-20250729]
[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/Biju/mmc-tmio-Add-64-bit-read-write-support-for-SD_BUF0-in-polling-mode/20250728-001022
base:   linus/master
patch link:    https://lore.kernel.org/r/20250727160731.106312-2-biju.das.jz%40bp.renesas.com
patch subject: [PATCH v2 1/2] mmc: tmio: Add 64-bit read/write support for SD_BUF0 in polling mode
config: powerpc64-randconfig-001-20250730 (https://download.01.org/0day-ci/archive/20250730/202507301421.AmWhOZBk-lkp@intel.com/config)
compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 78c460bbe8f1fc17e2e66b37edf419ccecbfecba)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250730/202507301421.AmWhOZBk-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/202507301421.AmWhOZBk-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from drivers/mmc/host/uniphier-sd.c:21:
>> drivers/mmc/host/tmio_mmc.h:249:2: error: call to undeclared function 'ioread64_rep'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     249 |         ioread64_rep(host->ctl + (addr << host->bus_shift), buf, count);
         |         ^
>> drivers/mmc/host/tmio_mmc.h:255:2: error: call to undeclared function 'iowrite64_rep'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     255 |         iowrite64_rep(host->ctl + (addr << host->bus_shift), buf, count);
         |         ^
   2 errors generated.


vim +/ioread64_rep +249 drivers/mmc/host/tmio_mmc.h

   244	
   245	#ifdef CONFIG_64BIT
   246	static inline void sd_ctrl_read64_rep(struct tmio_mmc_host *host, int addr,
   247					      u64 *buf, int count)
   248	{
 > 249		ioread64_rep(host->ctl + (addr << host->bus_shift), buf, count);
   250	}
   251	
   252	static inline void sd_ctrl_write64_rep(struct tmio_mmc_host *host, int addr,
   253					       const u64 *buf, int count)
   254	{
 > 255		iowrite64_rep(host->ctl + (addr << host->bus_shift), buf, count);
   256	}
   257	#endif
   258	

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