linux-kernel - [ambarus:spi-nor/next-id-collisions-v2 20/27] drivers/mtd/spi-nor/core.c:3126:6: warning: no previous prototype for function 'spi_nor_set_mtd

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Message-ID: <202107250313.mGKYgpvU-lkp@intel.com>
Date:   Sun, 25 Jul 2021 03:23:20 +0800
From:   kernel test robot <lkp@...el.com>
To:     Tudor Ambarus <tudor.ambarus@...rochip.com>
Cc:     clang-built-linux@...glegroups.com, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org
Subject: [ambarus:spi-nor/next-id-collisions-v2 20/27]
 drivers/mtd/spi-nor/core.c:3126:6: warning: no previous prototype for
 function 'spi_nor_set_mtd_info'

tree:   https://github.com/ambarus/linux-0day spi-nor/next-id-collisions-v2
head:   b4bf25c4aeb0e9be35b688a2eaa4e9b902dff4f4
commit: 1db04a902d5710228c3172ac7113a78857a3695f [20/27] mtd: spi-nor: Introduce spi_nor_set_mtd_info()
config: arm64-randconfig-r023-20210724 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 3f2c1e99e44d028d5e9dd685f3c568f2661f2f68)
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 arm64 cross compiling tool for clang build
        # apt-get install binutils-aarch64-linux-gnu
        # https://github.com/ambarus/linux-0day/commit/1db04a902d5710228c3172ac7113a78857a3695f
        git remote add ambarus https://github.com/ambarus/linux-0day
        git fetch --no-tags ambarus spi-nor/next-id-collisions-v2
        git checkout 1db04a902d5710228c3172ac7113a78857a3695f
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm64 

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

All warnings (new ones prefixed by >>):

>> drivers/mtd/spi-nor/core.c:3126:6: warning: no previous prototype for function 'spi_nor_set_mtd_info' [-Wmissing-prototypes]
   void spi_nor_set_mtd_info(struct spi_nor *nor)
        ^
   drivers/mtd/spi-nor/core.c:3126:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void spi_nor_set_mtd_info(struct spi_nor *nor)
   ^
   static 
   1 warning generated.


vim +/spi_nor_set_mtd_info +3126 drivers/mtd/spi-nor/core.c

  3125	
> 3126	void spi_nor_set_mtd_info(struct spi_nor *nor)
  3127	{
  3128		struct mtd_info *mtd = &nor->mtd;
  3129		struct device *dev = nor->dev;
  3130	
  3131		spi_nor_register_locking_ops(nor);
  3132	
  3133		/* Configure OTP parameters and ops */
  3134		spi_nor_otp_init(nor);
  3135	
  3136		mtd->dev.parent = dev;
  3137		if (!mtd->name)
  3138			mtd->name = dev_name(dev);
  3139		mtd->priv = nor;
  3140		mtd->type = MTD_NORFLASH;
  3141		mtd->flags = MTD_CAP_NORFLASH;
  3142		if (nor->info->flags & SPI_NOR_NO_ERASE)
  3143			mtd->flags |= MTD_NO_ERASE;
  3144		mtd->writesize = nor->params->writesize;
  3145		mtd->writebufsize = nor->page_size;
  3146		mtd->size = nor->params->size;
  3147		mtd->_erase = spi_nor_erase;
  3148		mtd->_read = spi_nor_read;
  3149		mtd->_write = spi_nor_write;
  3150		mtd->_suspend = spi_nor_suspend;
  3151		mtd->_resume = spi_nor_resume;
  3152		mtd->_get_device = spi_nor_get_device;
  3153		mtd->_put_device = spi_nor_put_device;
  3154	}
  3155	

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

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