[jgunthorpe:iommufd 3/14] drivers/iommu/iommufd/main.c:277: warning: expecting prototype for iommufd_ctxet(). Prototype was for iommufd_ctx_get() instead

kernel test robot
2022-08-20T07:21:38Z

tree: https://github.com/jgunthorpe/linux iommufd
head: 6624f48e554fe6a880b261074a1c9580dc9b5384
commit: a9a0de926a33cae4290bff0c0d7a0006fd1fd5a7 [3/14] iommufd: File descriptor, context, kconfig and makefiles
config: s390-randconfig-r035-20220820 (https://download.01.org/0day-ci/archive/20220820/202208201532.7dK1NH9N-lkp@intel.com/config)
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 0ac597f3cacf60479ffd36b03766fa7462dabd78)
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 s390 cross compiling tool for clang build
# apt-get install binutils-s390x-linux-gnu
# https://github.com/jgunthorpe/linux/commit/a9a0de926a33cae4290bff0c0d7a0006fd1fd5a7
git remote add jgunthorpe https://github.com/jgunthorpe/linux
git fetch --no-tags jgunthorpe iommufd
git checkout a9a0de926a33cae4290bff0c0d7a0006fd1fd5a7
# 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=s390 SHELL=/bin/bash

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

All warnings (new ones prefixed by >>):

drivers/iommu/iommufd/main.c:277: warning: Function parameter or member 'ictx' not described in 'iommufd_ctx_get'
>> drivers/iommu/iommufd/main.c:277: warning: expecting prototype for iommufd_ctxet(). Prototype was for iommufd_ctx_get() instead
drivers/iommu/iommufd/main.c:307: warning: Function parameter or member 'ictx' not described in 'iommufd_ctx_put'

vim +277 drivers/iommu/iommufd/main.c

269
270 /**
271 * iommufd_ctxet - Get a context reference
272 * @ictx - Context to get
273 *
274 * The caller must already hold a valid reference to ictx.
275 */
276 void iommufd_ctx_get(struct iommufd_ctx *ictx)
> 277 {
278 get_file(ictx->file);
279 }
280 EXPORT_SYMBOL_GPL(iommufd_ctx_get);
281

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0-DAY CI Kernel Test Service