[PATCH v2 20/20] spi: mxic: Add support for pipelined ECC operations

[kernel test robot]

Hi Miquel,

I love your patch! Perhaps something to improve:

[auto build test WARNING on mtd/nand/next]
[also build test WARNING on broonie-spi/for-next mtd/mtd/next mtd/mtd/fixes v5.16-rc2 next-20211126]
[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/Miquel-Raynal/External-ECC-engines-Macronix-support/20211126-195956
base:   https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git nand/next
config: xtensa-buildonly-randconfig-r006-20211125 (https://download.01.org/0day-ci/archive/20211127/202111270526.T8x5Nyq1-lkp@intel.com/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/0804d6ccdf15e7a65743d048d01d876a54070b6b
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Miquel-Raynal/External-ECC-engines-Macronix-support/20211126-195956
        git checkout 0804d6ccdf15e7a65743d048d01d876a54070b6b
        # save the config file 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/spi/

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

All warnings (new ones prefixed by >>):

   In file included from drivers/spi/spi-mxic.c:16:
>> include/linux/mtd/nand-ecc-mxic.h:34:1: warning: no previous prototype for 'mxic_ecc_get_pipelined_engine' [-Wmissing-prototypes]
      34 | mxic_ecc_get_pipelined_engine(struct platform_device *spi_pdev)
         | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> include/linux/mtd/nand-ecc-mxic.h:39:6: warning: no previous prototype for 'mxic_ecc_put_pipelined_engine' [-Wmissing-prototypes]
      39 | void mxic_ecc_put_pipelined_engine(struct nand_ecc_engine *eng) {}
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~


vim +/mxic_ecc_get_pipelined_engine +34 include/linux/mtd/nand-ecc-mxic.h

a19f28121341b52 Miquel Raynal 2021-11-26  32  
a19f28121341b52 Miquel Raynal 2021-11-26  33  struct nand_ecc_engine *
a19f28121341b52 Miquel Raynal 2021-11-26 @34  mxic_ecc_get_pipelined_engine(struct platform_device *spi_pdev)
a19f28121341b52 Miquel Raynal 2021-11-26  35  {
a19f28121341b52 Miquel Raynal 2021-11-26  36  	return ERR_PTR(-EOPNOTSUPP);
a19f28121341b52 Miquel Raynal 2021-11-26  37  }
a19f28121341b52 Miquel Raynal 2021-11-26  38  
a19f28121341b52 Miquel Raynal 2021-11-26 @39  void mxic_ecc_put_pipelined_engine(struct nand_ecc_engine *eng) {}
a19f28121341b52 Miquel Raynal 2021-11-26  40  

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