Hi Lukas,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[also build test WARNING on v6.1-rc4 next-20221108]
[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/20221108-213245
patch link:    https://lore.kernel.org/r/20221108133010.75226-2-lczerner%40redhat.com
patch subject: [PATCH 1/2] shmem: implement user/group quota support for tmpfs
config: riscv-randconfig-s033-20221108
compiler: riscv32-linux-gcc (GCC) 12.1.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # apt-get install sparse
        # sparse version: v0.6.4-39-gce1a6720-dirty
        # https://github.com/intel-lab-lkp/linux/commit/6f979020eab836196937e50c4e87e4504a56a845
        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/20221108-213245
        git checkout 6f979020eab836196937e50c4e87e4504a56a845
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' 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>

sparse warnings: (new ones prefixed by >>)
   WARNING: invalid argument to '-march': '_zihintpause'
>> mm/shmem.c:385:54: sparse: sparse: Using plain integer as NULL pointer

vim +385 mm/shmem.c

   345	
   346	static int shmem_enable_quotas(struct super_block *sb)
   347	{
   348		int type, err = 0;
   349		struct inode *inode;
   350		struct v2_disk_dqheader qheader;
   351		struct v2_disk_dqinfo qinfo;
   352		static const uint quota_magics[] = V2_INITQMAGICS;
   353		static const uint quota_versions[] = V2_INITQVERSIONS;
   354	
   355		sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE | DQUOT_NOLIST_DIRTY;
   356		for (type = 0; type < SHMEM_MAXQUOTAS; type++) {
   357			inode = shmem_get_inode_noquota(sb, NULL, S_IFREG | 0777, 0,
   358							VM_NORESERVE);
   359			if (IS_ERR_OR_NULL(inode)) {
   360				err = PTR_ERR(inode);
   361				goto out_err;
   362			}
   363			inode->i_flags |= S_NOQUOTA;
   364	
   365			/* Initialize generic quota file header */
   366			qheader.dqh_magic = cpu_to_le32(quota_magics[type]);
   367			qheader.dqh_version = cpu_to_le32(quota_versions[type]);
   368	
   369			/* Initialize the quota file info structure */
   370			qinfo.dqi_bgrace = cpu_to_le32(MAX_DQ_TIME);
   371			qinfo.dqi_igrace = cpu_to_le32(MAX_IQ_TIME);
   372			qinfo.dqi_flags = cpu_to_le32(0);
   373			qinfo.dqi_blocks = cpu_to_le32(QT_TREEOFF + 1);
   374			qinfo.dqi_free_blk = cpu_to_le32(0);
   375			qinfo.dqi_free_entry = cpu_to_le32(0);
   376	
   377			/*
   378			 * Write out generic quota header, quota info structure and
   379			 * zeroout first tree block.
   380			 */
   381			shmem_quota_write_inode(inode, type, (const char *)&qheader,
   382						sizeof(qheader), 0);
   383			shmem_quota_write_inode(inode, type, (const char *)&qinfo,
   384						sizeof(qinfo), sizeof(qheader));
 > 385			shmem_quota_write_inode(inode, type, 0,
   386						QT_TREEOFF * QUOTABLOCK_SIZE,
   387						QUOTABLOCK_SIZE);
   388	
   389			shmem_set_inode_flags(inode, FS_NOATIME_FL | FS_IMMUTABLE_FL);
   390	
   391			err = dquot_load_quota_inode(inode, type, QFMT_VFS_V1,
   392						     DQUOT_USAGE_ENABLED);
   393			iput(inode);
   394			if (err)
   395				goto out_err;
   396		}
   397		return 0;
   398	
   399	out_err:
   400		pr_warn("tmpfs: failed to enable quota tracking (type=%d, err=%d)\n",
   401			type, err);
   402		for (type--; type >= 0; type--) {
   403			inode = sb_dqopt(sb)->files[type];
   404			if (inode)
   405				inode = igrab(inode);
   406			dquot_quota_off(sb, type);
   407			if (inode)
   408				iput(inode);
   409		}
   410		return err;
   411	}
   412	

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