linux-kernel - arch/arm/mach-versatile/versatile.c:56:14: warning: no previous prototype for 'mmc

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Message-ID: <202304120307.rabOWgH9-lkp@intel.com>
Date:   Wed, 12 Apr 2023 04:05:31 +0800
From:   kernel test robot <lkp@...el.com>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: arch/arm/mach-versatile/versatile.c:56:14: warning: no previous
 prototype for 'mmc_status'

Hi Arnd,

First bad commit (maybe != root cause):

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   0d3eb744aed40ffce820cded61d7eac515199165
commit: 7036440eab3e2d47a775d4616909f8235488d714 ARM: omap1: enable multiplatform
date:   10 months ago
config: arm-randconfig-r023-20230411 (https://download.01.org/0day-ci/archive/20230412/202304120307.rabOWgH9-lkp@intel.com/config)
compiler: arm-linux-gnueabi-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=7036440eab3e2d47a775d4616909f8235488d714
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 7036440eab3e2d47a775d4616909f8235488d714
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arm olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202304120307.rabOWgH9-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> arch/arm/mach-versatile/versatile.c:56:14: warning: no previous prototype for 'mmc_status' [-Wmissing-prototypes]
      56 | unsigned int mmc_status(struct device *dev)
         |              ^~~~~~~~~~
--
>> arch/arm/mach-spear/pl080.c:30:5: warning: no previous prototype for 'pl080_get_signal' [-Wmissing-prototypes]
      30 | int pl080_get_signal(const struct pl08x_channel_data *cd)
         |     ^~~~~~~~~~~~~~~~
>> arch/arm/mach-spear/pl080.c:65:6: warning: no previous prototype for 'pl080_put_signal' [-Wmissing-prototypes]
      65 | void pl080_put_signal(const struct pl08x_channel_data *cd, int signal)
         |      ^~~~~~~~~~~~~~~~


vim +/mmc_status +56 arch/arm/mach-versatile/versatile.c

a7096789211193 arch/arm/mach-versatile/versatile_dt.c Rob Herring 2015-12-08  55  
a7096789211193 arch/arm/mach-versatile/versatile_dt.c Rob Herring 2015-12-08 @56  unsigned int mmc_status(struct device *dev)
a7096789211193 arch/arm/mach-versatile/versatile_dt.c Rob Herring 2015-12-08  57  {
a7096789211193 arch/arm/mach-versatile/versatile_dt.c Rob Herring 2015-12-08  58  	struct amba_device *adev = container_of(dev, struct amba_device, dev);
a7096789211193 arch/arm/mach-versatile/versatile_dt.c Rob Herring 2015-12-08  59  	u32 mask;
a7096789211193 arch/arm/mach-versatile/versatile_dt.c Rob Herring 2015-12-08  60  
a7096789211193 arch/arm/mach-versatile/versatile_dt.c Rob Herring 2015-12-08  61  	if (adev->res.start == VERSATILE_MMCI0_BASE)
a7096789211193 arch/arm/mach-versatile/versatile_dt.c Rob Herring 2015-12-08  62  		mask = 1;
a7096789211193 arch/arm/mach-versatile/versatile_dt.c Rob Herring 2015-12-08  63  	else
a7096789211193 arch/arm/mach-versatile/versatile_dt.c Rob Herring 2015-12-08  64  		mask = 2;
a7096789211193 arch/arm/mach-versatile/versatile_dt.c Rob Herring 2015-12-08  65  
a7096789211193 arch/arm/mach-versatile/versatile_dt.c Rob Herring 2015-12-08  66  	return readl(versatile_sys_base + VERSATILE_SYS_MCI_OFFSET) & mask;
a7096789211193 arch/arm/mach-versatile/versatile_dt.c Rob Herring 2015-12-08  67  }
a7096789211193 arch/arm/mach-versatile/versatile_dt.c Rob Herring 2015-12-08  68  

:::::: The code at line 56 was first introduced by commit
:::::: a70967892111934e292485ce84f1bab38cc55380 ARM: versatile: merge mach code into a single file

:::::: TO: Rob Herring <robh@...nel.org>
:::::: CC: Arnd Bergmann <arnd@...db.de>

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests