linux-kernel - drivers/acpi/arm64/agdi.c:88:13: warning: no previous prototype for function 'acpi_agdi

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Date:   Thu, 21 Apr 2022 17:42:50 +0800
From:   kernel test robot <lkp@...el.com>
To:     Ilkka Koskinen <ilkka@...amperecomputing.com>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        "Russell King (Oracle)" <rmk+kernel@...linux.org.uk>
Subject: drivers/acpi/arm64/agdi.c:88:13: warning: no previous prototype for
 function 'acpi_agdi_init'

Hi Ilkka,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   b253435746d9a4a701b5f09211b9c14d3370d0da
commit: a2a591fb76e6f5461dfd04715b69c317e50c43a5 ACPI: AGDI: Add driver for Arm Generic Diagnostic Dump and Reset device
date:   6 weeks ago
config: arm64-allmodconfig (https://download.01.org/0day-ci/archive/20220421/202204211729.xRuJP9jy-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project bac6cd5bf85669e3376610cfc4c4f9ca015e7b9b)
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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a2a591fb76e6f5461dfd04715b69c317e50c43a5
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout a2a591fb76e6f5461dfd04715b69c317e50c43a5
        # 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=arm64 SHELL=/bin/bash drivers/acpi/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/acpi/arm64/agdi.c:88:13: warning: no previous prototype for function 'acpi_agdi_init' [-Wmissing-prototypes]
   void __init acpi_agdi_init(void)
               ^
   drivers/acpi/arm64/agdi.c:88:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void __init acpi_agdi_init(void)
   ^
   static 
   1 warning generated.


vim +/acpi_agdi_init +88 drivers/acpi/arm64/agdi.c

    87	
  > 88	void __init acpi_agdi_init(void)

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp