Messages in this thread | | | Date | Fri, 5 Nov 2021 22:01:02 +0800 | From | kernel test robot <> | Subject | [axboe-block:for-5.16/block 189/189] block/fops.c:530:23: error: implicit declaration of function 'bdev_nr_bytes' |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git for-5.16/block head: d4e76b1ad0065477119b544fd93c2f03550ef548 commit: d4e76b1ad0065477119b544fd93c2f03550ef548 [189/189] block: use new bdev_nr_bytes() helper for blkdev_{read,write}_iter() config: ia64-defconfig (attached as .config) compiler: ia64-linux-gcc (GCC) 11.2.0 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 # https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git/commit/?id=d4e76b1ad0065477119b544fd93c2f03550ef548 git remote add axboe-block https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git git fetch --no-tags axboe-block for-5.16/block git checkout d4e76b1ad0065477119b544fd93c2f03550ef548 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=ia64
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
block/fops.c: In function 'blkdev_write_iter': >> block/fops.c:530:23: error: implicit declaration of function 'bdev_nr_bytes' [-Werror=implicit-function-declaration] 530 | loff_t size = bdev_nr_bytes(bdev); | ^~~~~~~~~~~~~ cc1: some warnings being treated as errors
vim +/bdev_nr_bytes +530 block/fops.c
518 519 /* 520 * Write data to the block device. Only intended for the block device itself 521 * and the raw driver which basically is a fake block device. 522 * 523 * Does not take i_mutex for the write and thus is not for general purpose 524 * use. 525 */ 526 static ssize_t blkdev_write_iter(struct kiocb *iocb, struct iov_iter *from) 527 { 528 struct block_device *bdev = iocb->ki_filp->private_data; 529 struct inode *bd_inode = bdev->bd_inode; > 530 loff_t size = bdev_nr_bytes(bdev); 531 struct blk_plug plug; 532 size_t shorted = 0; 533 ssize_t ret; 534 535 if (bdev_read_only(bdev)) 536 return -EPERM; 537 538 if (IS_SWAPFILE(bd_inode) && !is_hibernate_resume_dev(bd_inode->i_rdev)) 539 return -ETXTBSY; 540 541 if (!iov_iter_count(from)) 542 return 0; 543 544 if (iocb->ki_pos >= size) 545 return -ENOSPC; 546 547 if ((iocb->ki_flags & (IOCB_NOWAIT | IOCB_DIRECT)) == IOCB_NOWAIT) 548 return -EOPNOTSUPP; 549 550 size -= iocb->ki_pos; 551 if (iov_iter_count(from) > size) { 552 shorted = iov_iter_count(from) - size; 553 iov_iter_truncate(from, size); 554 } 555 556 blk_start_plug(&plug); 557 ret = __generic_file_write_iter(iocb, from); 558 if (ret > 0) 559 ret = generic_write_sync(iocb, ret); 560 iov_iter_reexpand(from, iov_iter_count(from) + shorted); 561 blk_finish_plug(&plug); 562 return ret; 563 } 564
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