Hi Lukas,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on jack-fs/for_next]
[also build test ERROR on linus/master v6.1-rc6 next-20221122]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Lukas-Czerner/shmem-user-and-group-quota-support-for-tmpfs/20221121-223006
base:   https://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs.git for_next
patch link:    https://lore.kernel.org/r/20221121142854.91109-3-lczerner%40redhat.com
patch subject: [PATCH v2 2/3] shmem: implement user/group quota support for tmpfs
config: riscv-randconfig-r011-20221120
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project af8c49dc1ec44339d915d988ffe0f38da68ca0e7)
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 riscv cross compiling tool for clang build
        # apt-get install binutils-riscv64-linux-gnu
        # https://github.com/intel-lab-lkp/linux/commit/1d7fa75b27cff11f4a69cff07058d541c4bf8a9e
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Lukas-Czerner/shmem-user-and-group-quota-support-for-tmpfs/20221121-223006
        git checkout 1d7fa75b27cff11f4a69cff07058d541c4bf8a9e
        # 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=riscv SHELL=/bin/bash

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

All errors (new ones prefixed by >>):

>> mm/shmem.c:4354:11: error: casting from randomized structure pointer type 'struct inode *' to 'struct file *'
                           return (struct file *)inode;
                                  ^
   1 error generated.


vim +4354 mm/shmem.c

  4333	
  4334	static struct file *__shmem_file_setup(struct vfsmount *mnt, const char *name, loff_t size,
  4335					       unsigned long flags, unsigned int i_flags)
  4336	{
  4337		struct inode *inode;
  4338		struct file *res;
  4339	
  4340		if (IS_ERR(mnt))
  4341			return ERR_CAST(mnt);
  4342	
  4343		if (size < 0 || size > MAX_LFS_FILESIZE)
  4344			return ERR_PTR(-EINVAL);
  4345	
  4346		if (shmem_acct_size(flags, size))
  4347			return ERR_PTR(-ENOMEM);
  4348	
  4349		inode = shmem_get_inode(mnt->mnt_sb, NULL, S_IFREG | S_IRWXUGO, 0,
  4350					flags);
  4351		if (IS_ERR_OR_NULL(inode)) {
  4352			shmem_unacct_size(flags, size);
  4353			if (IS_ERR(inode))
> 4354				return (struct file *)inode;
  4355			return ERR_PTR(-ENOSPC);
  4356		}
  4357		inode->i_flags |= i_flags;
  4358		inode->i_size = size;
  4359		clear_nlink(inode);	/* It is unlinked */
  4360		res = ERR_PTR(ramfs_nommu_expand_for_mapping(inode, size));
  4361		if (!IS_ERR(res))
  4362			res = alloc_file_pseudo(inode, mnt, name, O_RDWR,
  4363					&shmem_file_operations);
  4364		if (IS_ERR(res))
  4365			iput(inode);
  4366		return res;
  4367	}
  4368	

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