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Bottomley" , Helge Deller , Madhavan Srinivasan , Michael Ellerman , Nicholas Piggin , Christophe Leroy , Naveen N Rao , Vasily Gorbik , Alexander Gordeev , Christian Borntraeger , Sven Schnelle , Yoshinori Sato , Rich Felker , John Paul Adrian Glaubitz , "David S. Miller" , Andreas Larsson , Andy Lutomirski , Thomas Gleixner , Ingo Molnar , Borislav Petkov , oe-kbuild-all@lists.linux.dev, netdev@vger.kernel.org Subject: Re: [PATCH v5 7/7] fs: introduce file_getattr and file_setattr syscalls Message-ID: <20250519080659.11601Ae4-hca@linux.ibm.com> References: <20250513-xattrat-syscall-v5-7-22bb9c6c767f@kernel.org> <202505181900.UGh2tVRs-lkp@intel.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <202505181900.UGh2tVRs-lkp@intel.com> X-TM-AS-GCONF: 00 X-Proofpoint-GUID: 26Z1pXX-huwZjBsBkHZ0El21nYUFp4WM X-Proofpoint-ORIG-GUID: oahDWnkTyrngXNhvLQcVRFS-MU8VkbKm X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwNTE5MDA3NiBTYWx0ZWRfXzvz0jPcv3AtG Tlpps7yuyoUsKaYiE4vBdmi79kkM+BjIHIwJXSgtu9IJV7k+TRKIRBWo22tTI57JvFfGOVwn7/5 NtT+9RT1bkp4yFo6iAMhM0CXHPQ+MXfCmhMkYA5kHxD3YdT1Uj+sIlOic80Twej7TchmoOvEEhQ d89bgpZu/Cyh/AJWhssj7VpA7+UAarB6DB4z4Ik+lDVcmLDQt5/42UyVjTzIeXQdZrQe1+II0JN Jwjq/I3028b1b3fYmDJQcdS1xbXyCnwBPuLVKQZa2pQCttHRL2dU46QkKYHhqoXdSXMqh7rJPzc lgl7ybJYEWXb8YlA6YeQsXtYEHgOHYWAWm8w4OSwF70xJEk+Zl490uVqctlonvxPjpoAWUAvqfz /RsS/9w9tRhG8n6wqLmhUEYkessvjHe/imJzKtag6UYwu+b2PJLZaYd7mYm7xXgpd/lFYYgr X-Authority-Analysis: v=2.4 cv=RZKQC0tv c=1 sm=1 tr=0 ts=682ae6ab cx=c_pps a=bLidbwmWQ0KltjZqbj+ezA==:117 a=bLidbwmWQ0KltjZqbj+ezA==:17 a=kj9zAlcOel0A:10 a=dt9VzEwgFbYA:10 a=NEAV23lmAAAA:8 a=VwQbUJbxAAAA:8 a=i3X5FwGiAAAA:8 a=QyXUC8HyAAAA:8 a=Xka33dLGCC5fpbZpyycA:9 a=CjuIK1q_8ugA:10 a=mmqRlSCDY2ywfjPLJ4af:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.0.736,FMLib:17.12.80.40 definitions=2025-05-19_03,2025-05-16_03,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 malwarescore=0 mlxscore=0 adultscore=0 phishscore=0 priorityscore=1501 lowpriorityscore=0 impostorscore=0 bulkscore=0 mlxlogscore=999 clxscore=1011 spamscore=0 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2505070000 definitions=main-2505190076 On Sun, May 18, 2025 at 07:26:00PM +0800, kernel test robot wrote: > Hi Andrey, > > kernel test robot noticed the following build warnings: > > [auto build test WARNING on 0d8d44db295ccad20052d6301ef49ff01fb8ae2d] > > url: https://github.com/intel-lab-lkp/linux/commits/Andrey-Albershteyn/fs-split-fileattr-related-helpers-into-separate-file/20250513-172128 > base: 0d8d44db295ccad20052d6301ef49ff01fb8ae2d > patch link: https://lore.kernel.org/r/20250513-xattrat-syscall-v5-7-22bb9c6c767f%40kernel.org > patch subject: [PATCH v5 7/7] fs: introduce file_getattr and file_setattr syscalls > config: s390-randconfig-r112-20250518 (https://download.01.org/0day-ci/archive/20250518/202505181900.UGh2tVRs-lkp@intel.com/config) > compiler: s390-linux-gcc (GCC) 8.5.0 > reproduce: (https://download.01.org/0day-ci/archive/20250518/202505181900.UGh2tVRs-lkp@intel.com/reproduce) > > If you fix the issue in a separate patch/commit (i.e. not just a new version of > the same patch/commit), kindly add following tags > | Reported-by: kernel test robot > | Closes: https://lore.kernel.org/oe-kbuild-all/202505181900.UGh2tVRs-lkp@intel.com/ > > sparse warnings: (new ones prefixed by >>) > >> fs/file_attr.c:362:1: sparse: sparse: Using plain integer as NULL pointer > >> fs/file_attr.c:362:1: sparse: sparse: Using plain integer as NULL pointer > >> fs/file_attr.c:362:1: sparse: sparse: Using plain integer as NULL pointer > >> fs/file_attr.c:362:1: sparse: sparse: Using plain integer as NULL pointer > fs/file_attr.c:416:1: sparse: sparse: Using plain integer as NULL pointer > fs/file_attr.c:416:1: sparse: sparse: Using plain integer as NULL pointer > fs/file_attr.c:416:1: sparse: sparse: Using plain integer as NULL pointer > fs/file_attr.c:416:1: sparse: sparse: Using plain integer as NULL pointer > > vim +362 fs/file_attr.c > > 361 > > 362 SYSCALL_DEFINE5(file_getattr, int, dfd, const char __user *, filename, > 363 struct fsxattr __user *, ufsx, size_t, usize, > 364 unsigned int, at_flags) > 365 { Please ignore the warning. There is nothing to fix; this is a warning which happens only with CONFIG_COMPAT and Al's "SC_DELOUSE" macro, which is used for compat syscalls. Sparse cannot handle that.