include/linux/mtd/cfi.h:62:2: warning: #warning No CONFIG_MTD_CFI_Ix selected. No NOR chip support can work.

[kernel test robot]

Hi Mika,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   972a278fe60c361eb8f37619f562f092e8786d7c
commit: e23e5a05d1fd9479586c40ffbcc056b3e34ef816 mtd: spi-nor: intel-spi: Convert to SPI MEM
date:   5 months ago
config: alpha-randconfig-r021-20220717 (https://download.01.org/0day-ci/archive/20220717/202207172022.V9HOBKg9-lkp@xxxxxxxxx/config)
compiler: alpha-linux-gcc (GCC) 12.1.0
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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e23e5a05d1fd9479586c40ffbcc056b3e34ef816
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout e23e5a05d1fd9479586c40ffbcc056b3e34ef816
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=alpha SHELL=/bin/bash drivers/spi/

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All warnings (new ones prefixed by >>):

   In file included from include/linux/mtd/spi-nor.h:10,
                    from drivers/spi/spi-intel.c:13:
>> include/linux/mtd/cfi.h:62:2: warning: #warning No CONFIG_MTD_CFI_Ix selected. No NOR chip support can work. [-Wcpp]
      62 | #warning No CONFIG_MTD_CFI_Ix selected. No NOR chip support can work.
         |  ^~~~~~~


vim +62 include/linux/mtd/cfi.h

^1da177e4c3f41 Linus Torvalds  2005-04-16  60  
241651d04d672f David Woodhouse 2007-09-06  61  #ifndef cfi_interleave
241651d04d672f David Woodhouse 2007-09-06 @62  #warning No CONFIG_MTD_CFI_Ix selected. No NOR chip support can work.
241651d04d672f David Woodhouse 2007-09-06  63  static inline int cfi_interleave(void *cfi)
241651d04d672f David Woodhouse 2007-09-06  64  {
241651d04d672f David Woodhouse 2007-09-06  65  	BUG();
241651d04d672f David Woodhouse 2007-09-06  66  	return 0;
241651d04d672f David Woodhouse 2007-09-06  67  }
241651d04d672f David Woodhouse 2007-09-06  68  #endif
241651d04d672f David Woodhouse 2007-09-06  69  

:::::: The code at line 62 was first introduced by commit
:::::: 241651d04d672fb685b2874707016cbbf95931e5 [MTD] Fix CFI build error when no map width or interleave supported

:::::: TO: David Woodhouse <dwmw2@xxxxxxxxxxxxx>
:::::: CC: David Woodhouse <dwmw2@xxxxxxxxxxxxx>

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https://01.org/lkp