linux-kernel - Re: [mtd:nand/next 11/31] drivers/mtd/nand/raw/cadence-nand-controller.c:1893:4: error: implicit declaration of function 'ioread64

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Date:   Wed, 21 Sep 2022 10:40:02 +0200
From:   Miquel Raynal <miquel.raynal@...tlin.com>
To:     kernel test robot <lkp@...el.com>
Cc:     Valentin Korenblit <vkorenblit@...uans.com>, llvm@...ts.linux.dev,
        kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: Re: [mtd:nand/next 11/31]
 drivers/mtd/nand/raw/cadence-nand-controller.c:1893:4: error: implicit
 declaration of function 'ioread64_rep' is invalid in C99

Hi Valentin,

lkp@...el.com wrote on Wed, 21 Sep 2022 06:31:23 +0800:

> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git nand/next
> head:   63de24fccb6b831be1abfe07292449105b467731
> commit: 7e7dc04774b18c0e42ce74aa3357021cda979674 [11/31] mtd: rawnand: cadence: support 64-bit slave dma interface
> config: x86_64-randconfig-a001 (https://download.01.org/0day-ci/archive/20220921/202209210641.MziHAbW7-lkp@intel.com/config)
> compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project f28c006a5895fc0e329fe15fead81e37457cb1d1)
> 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/mtd/linux.git/commit/?id=7e7dc04774b18c0e42ce74aa3357021cda979674
>         git remote add mtd https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git
>         git fetch --no-tags mtd nand/next
>         git checkout 7e7dc04774b18c0e42ce74aa3357021cda979674
>         # save the config file
>         mkdir build_dir && cp config build_dir/.config
>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/mtd/nand/raw/
> 
> If you fix the issue, kindly add following tag where applicable
> | Reported-by: kernel test robot <lkp@...el.com>
> 
> All errors (new ones prefixed by >>):
> 
> >> drivers/mtd/nand/raw/cadence-nand-controller.c:1893:4: error: implicit declaration of function 'ioread64_rep' is invalid in C99 [-Werror,-Wimplicit-function-declaration]  
>                            ioread64_rep(cdns_ctrl->io.virt, buf, len_in_words);
>                            ^
> >> drivers/mtd/nand/raw/cadence-nand-controller.c:1962:4: error: implicit declaration of function 'iowrite64_rep' is invalid in C99 [-Werror,-Wimplicit-function-declaration]  
>                            iowrite64_rep(cdns_ctrl->io.virt, buf, len_in_words);
>                            ^
>    2 errors generated.

I've dropped your patch from nand/next, here you can check what's
missing in the configuration, should not be too hard to solve. Once
done, you can send a new version of the patch.

Thanks,
Miquèl