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Wysocki" , Danilo Krummrich , Andrew Morton , David Hildenbrand , Lorenzo Stoakes , Keith Busch , Jens Axboe , Christoph Hellwig , Sagi Grimberg , houtao1@huawei.com Subject: Re: [PATCH 03/13] kernfs: add support for get_unmapped_area callback Message-ID: <202512202307.ewUcqBQV-lkp@intel.com> References: <20251220040446.274991-4-houtao@huaweicloud.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20251220040446.274991-4-houtao@huaweicloud.com> X-Stat-Signature: 54umbb954ns6aaygy7baymnjxdx8ab58 X-Rspam-User: X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: 0953140005 X-HE-Tag: 1766245464-94354 X-HE-Meta: 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 vySVUleC kGUMs7ry0eWjOMLI211nNtMogaJQhk2mM80bLAiNKhNEDB9yDaBZw71dYWZzAnlS/7lxX71pC5wrunE2NJ/DZOd4RDI27kcHRICcn8Sda1+JXpgiFsH8IORavI2vv9mdVmpSAPl0/d8Mim7Sj7jZU6ViSEctqpY+MC0Gdvmow6eRTk2Olg8uPAxJclZn5q29lneV0qVjgnRvgasxzh9S5pFIiX+qsd+yMfp6STrxfmCpTdAEf5kIuD+vKu6jiZ3mc/GfE7/AaLAyW9rKkqk/tE8zZSS2zPXI1Hid9bf5UlPmMLKXM/0AgZESETt+KJ1639zO/VEJ49AXgCXClZx3XGghPAk2v1y6kzyZR9qmnVe24+RKRgn7SvBYhjg8cps57y9MRSVcAX9UMMFJJl3ZLN8coyOpmVH4QgQWLBCUTzPZLsX8= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hi Hou, kernel test robot noticed the following build errors: [auto build test ERROR on driver-core/driver-core-testing] [also build test ERROR on driver-core/driver-core-next driver-core/driver-core-linus akpm-mm/mm-everything linus/master v6.19-rc1 next-20251219] [cannot apply to pci/next pci/for-linus] [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/Hou-Tao/PCI-P2PDMA-Release-the-per-cpu-ref-of-pgmap-when-vm_insert_page-fails/20251220-121804 base: driver-core/driver-core-testing patch link: https://lore.kernel.org/r/20251220040446.274991-4-houtao%40huaweicloud.com patch subject: [PATCH 03/13] kernfs: add support for get_unmapped_area callback config: sh-allnoconfig (https://download.01.org/0day-ci/archive/20251220/202512202307.ewUcqBQV-lkp@intel.com/config) compiler: sh4-linux-gcc (GCC) 15.1.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251220/202512202307.ewUcqBQV-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/202512202307.ewUcqBQV-lkp@intel.com/ All errors (new ones prefixed by >>): fs/kernfs/file.c: In function 'kernfs_get_unmapped_area': >> fs/kernfs/file.c:480:16: error: implicit declaration of function 'mm_get_unmapped_area'; did you mean 'get_unmapped_area'? [-Wimplicit-function-declaration] 480 | addr = mm_get_unmapped_area(file, uaddr, len, pgoff, flags); | ^~~~~~~~~~~~~~~~~~~~ | get_unmapped_area vim +480 fs/kernfs/file.c 456 457 static unsigned long kernfs_get_unmapped_area(struct file *file, unsigned long uaddr, 458 unsigned long len, unsigned long pgoff, 459 unsigned long flags) 460 { 461 struct kernfs_open_file *of = kernfs_of(file); 462 const struct kernfs_ops *ops; 463 long addr; 464 465 if (!(of->kn->flags & KERNFS_HAS_MMAP)) 466 return -ENODEV; 467 468 mutex_lock(&of->mutex); 469 470 addr = -ENODEV; 471 if (!kernfs_get_active_of(of)) 472 goto out_unlock; 473 474 ops = kernfs_ops(of->kn); 475 if (ops->get_unmapped_area) { 476 addr = ops->get_unmapped_area(of, uaddr, len, pgoff, flags); 477 if (!IS_ERR_VALUE(addr) || addr != -EOPNOTSUPP) 478 goto out_put; 479 } > 480 addr = mm_get_unmapped_area(file, uaddr, len, pgoff, flags); 481 482 out_put: 483 kernfs_put_active_of(of); 484 out_unlock: 485 mutex_unlock(&of->mutex); 486 487 return addr; 488 } 489 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki