[gerg-m68knommu:armnommu 4/4] arch/arm/mach-versatile/versatile_dt.c:60:14: warning: no previous prototype for function 'mmc_status'

From: kernel test robot
Date: Fri Nov 26 2021 - 18:55:34 EST


tree: https://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu.git armnommu
head: 2f172ee2c4ba76853a7f5a95d657111dae7e5207
commit: 2f172ee2c4ba76853a7f5a95d657111dae7e5207 [4/4] ARM: versatile: support configuring versatile machine for no-MMU
config: arm-randconfig-r022-20211126 (https://download.01.org/0day-ci/archive/20211127/202111270741.t0BFBqcL-lkp@xxxxxxxxx/config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 5162b558d8c0b542e752b037e72a69d5fd51eb1e)
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 arm cross compiling tool for clang build
# apt-get install binutils-arm-linux-gnueabi
# https://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu.git/commit/?id=2f172ee2c4ba76853a7f5a95d657111dae7e5207
git remote add gerg-m68knommu https://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu.git
git fetch --no-tags gerg-m68knommu armnommu
git checkout 2f172ee2c4ba76853a7f5a95d657111dae7e5207
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash

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

All warnings (new ones prefixed by >>):

>> arch/arm/mach-versatile/versatile_dt.c:60:14: warning: no previous prototype for function 'mmc_status' [-Wmissing-prototypes]
unsigned int mmc_status(struct device *dev)
^
arch/arm/mach-versatile/versatile_dt.c:60:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
unsigned int mmc_status(struct device *dev)
^
static
1 warning generated.


vim +/mmc_status +60 arch/arm/mach-versatile/versatile_dt.c

a7096789211193 Rob Herring 2015-12-08 59
a7096789211193 Rob Herring 2015-12-08 @60 unsigned int mmc_status(struct device *dev)
a7096789211193 Rob Herring 2015-12-08 61 {
a7096789211193 Rob Herring 2015-12-08 62 struct amba_device *adev = container_of(dev, struct amba_device, dev);
a7096789211193 Rob Herring 2015-12-08 63 u32 mask;
a7096789211193 Rob Herring 2015-12-08 64
a7096789211193 Rob Herring 2015-12-08 65 if (adev->res.start == VERSATILE_MMCI0_BASE)
a7096789211193 Rob Herring 2015-12-08 66 mask = 1;
a7096789211193 Rob Herring 2015-12-08 67 else
a7096789211193 Rob Herring 2015-12-08 68 mask = 2;
a7096789211193 Rob Herring 2015-12-08 69
a7096789211193 Rob Herring 2015-12-08 70 return readl(versatile_sys_base + VERSATILE_SYS_MCI_OFFSET) & mask;
a7096789211193 Rob Herring 2015-12-08 71 }
a7096789211193 Rob Herring 2015-12-08 72

:::::: The code at line 60 was first introduced by commit
:::::: a70967892111934e292485ce84f1bab38cc55380 ARM: versatile: merge mach code into a single file

:::::: TO: Rob Herring <robh@xxxxxxxxxx>
:::::: CC: Arnd Bergmann <arnd@xxxxxxxx>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx