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charset=us-ascii Content-Disposition: inline tree: https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git cifs-netfs head: 8dc73cdbbce16b41d4de537600385262aa8b7613 commit: 3a3871ab79037b2330014b3cbe16676c74e10c00 [7/40] mm: Provide a means of invalidation without using launder_folio config: hexagon-allyesconfig (https://download.01.org/0day-ci/archive/20240418/202404180108.grnZRvXY-lkp@intel.com/config) compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project 7089c359a3845323f6f30c44a47dd901f2edfe63) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240418/202404180108.grnZRvXY-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/202404180108.grnZRvXY-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from fs/netfs/direct_write.c:10: In file included from fs/netfs/internal.h:10: In file included from include/linux/netfs.h:19: In file included from include/linux/pagemap.h:8: In file included from include/linux/mm.h:2208: include/linux/vmstat.h:522:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 522 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ In file included from fs/netfs/direct_write.c:10: In file included from fs/netfs/internal.h:10: In file included from include/linux/netfs.h:19: In file included from include/linux/pagemap.h:11: In file included from include/linux/highmem.h:12: In file included from include/linux/hardirq.h:11: In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/hexagon/include/asm/io.h:328: include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 547 | val = __raw_readb(PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 560 | val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr)); | ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu' 37 | #define __le16_to_cpu(x) ((__force __u16)(__le16)(x)) | ^ In file included from fs/netfs/direct_write.c:10: In file included from fs/netfs/internal.h:10: In file included from include/linux/netfs.h:19: In file included from include/linux/pagemap.h:11: In file included from include/linux/highmem.h:12: In file included from include/linux/hardirq.h:11: In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/hexagon/include/asm/io.h:328: include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 573 | val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr)); | ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu' 35 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x)) | ^ In file included from fs/netfs/direct_write.c:10: In file included from fs/netfs/internal.h:10: In file included from include/linux/netfs.h:19: In file included from include/linux/pagemap.h:11: In file included from include/linux/highmem.h:12: In file included from include/linux/hardirq.h:11: In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/hexagon/include/asm/io.h:328: include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 584 | __raw_writeb(value, PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 594 | __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 604 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ >> fs/netfs/direct_write.c:165:44: warning: variable 'end' is uninitialized when used here [-Wuninitialized] 165 | if (filemap_range_has_page(mapping, pos, end)) | ^~~ fs/netfs/direct_write.c:138:24: note: initialize the variable 'end' to silence this warning 138 | unsigned long long end; | ^ | = 0 8 warnings generated. vim +/end +165 fs/netfs/direct_write.c 118 119 /** 120 * netfs_unbuffered_write_iter - Unbuffered write to a file 121 * @iocb: IO state structure 122 * @from: iov_iter with data to write 123 * 124 * Do an unbuffered write to a file, writing the data directly to the server 125 * and not lodging the data in the pagecache. 126 * 127 * Return: 128 * * Negative error code if no data has been written at all of 129 * vfs_fsync_range() failed for a synchronous write 130 * * Number of bytes written, even for truncated writes 131 */ 132 ssize_t netfs_unbuffered_write_iter(struct kiocb *iocb, struct iov_iter *from) 133 { 134 struct file *file = iocb->ki_filp; 135 struct address_space *mapping = file->f_mapping; 136 struct inode *inode = mapping->host; 137 struct netfs_inode *ictx = netfs_inode(inode); 138 unsigned long long end; 139 ssize_t ret; 140 loff_t pos = iocb->ki_pos; 141 142 _enter("%llx,%zx,%llx", pos, iov_iter_count(from), i_size_read(inode)); 143 144 if (!iov_iter_count(from)) 145 return 0; 146 147 trace_netfs_write_iter(iocb, from); 148 netfs_stat(&netfs_n_rh_dio_write); 149 150 ret = netfs_start_io_direct(inode); 151 if (ret < 0) 152 return ret; 153 ret = generic_write_checks(iocb, from); 154 if (ret <= 0) 155 goto out; 156 ret = file_remove_privs(file); 157 if (ret < 0) 158 goto out; 159 ret = file_update_time(file); 160 if (ret < 0) 161 goto out; 162 if (iocb->ki_flags & IOCB_NOWAIT) { 163 /* We could block if there are any pages in the range. */ 164 ret = -EAGAIN; > 165 if (filemap_range_has_page(mapping, pos, end)) -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki