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Howlett" , Vlastimil Babka , Jann Horn , linux-kernel@vger.kernel.org Subject: Re: [PATCH 7/7] mm/mremap: thread state through move page table operation Message-Id: <20250303160555.46915fd9f69ca13e1fe2c5f9@linux-foundation.org> In-Reply-To: <202503040759.5zpJdC2i-lkp@intel.com> References: <4cc18ebfc0cb32e9e42d86503cef3265108343e4.1740911247.git.lorenzo.stoakes@oracle.com> <202503040759.5zpJdC2i-lkp@intel.com> X-Mailer: Sylpheed 3.8.0beta1 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspam-User: X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: 8A6B380015 X-Stat-Signature: 47b6b9kir1ebxonn7shdmriwig5h3e1c X-HE-Tag: 1741046757-468710 X-HE-Meta: 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 JDpK2iQY 3kBH9fg9pk/SRvSVgYui58LcfAzSuN1+T8DhnFPt9cJSL2RtP44vH8ZZQggPB3wzMc2Pyiluc93+ouzJibosWlcHGItjeODNLDHXVv/X6HUdMQAK6Nk6v0M34oetygRxucXnEp+piu+GrMNPRlTpcCGswFlrRhAJOO3tYfGX/0ZQpdAM1sq/m/amlWtIZ8bNbJ2kn/SKNi/sA7Zk9Vo0mlHkwW2LygjSL1NyUtPBI/9J4VGp1hV9MV+CU8bknmoQu3fecJQczcurbuSyV01uQlUfbARqMKYDcbHo85EXEcCL2PZQNJ4FIbclXOrrA68avcbAdj55T55bWT4HkZ4w6kfyJvXHixrb60yXAS/JMkty65w7jZFjZrnHb4ZkKZxuqsIbYmUPfWjLiEqv9UFxBP9wAWNyY70Y/fG1fiBQwZHV/ziw= 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: On Tue, 4 Mar 2025 07:30:16 +0800 kernel test robot wrote: > Hi Lorenzo, > > kernel test robot noticed the following build warnings: > > [auto build test WARNING on akpm-mm/mm-everything] > [also build test WARNING on linus/master v6.14-rc5 next-20250303] > [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/Lorenzo-Stoakes/mm-mremap-correctly-handle-partial-mremap-of-VMA-starting-at-0/20250303-192101 > base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything > patch link: https://lore.kernel.org/r/4cc18ebfc0cb32e9e42d86503cef3265108343e4.1740911247.git.lorenzo.stoakes%40oracle.com > patch subject: [PATCH 7/7] mm/mremap: thread state through move page table operation > config: x86_64-buildonly-randconfig-005-20250304 (https://download.01.org/0day-ci/archive/20250304/202503040759.5zpJdC2i-lkp@intel.com/config) > compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 > reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250304/202503040759.5zpJdC2i-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/202503040759.5zpJdC2i-lkp@intel.com/ > > All warnings (new ones prefixed by >>): > > mm/mremap.c: In function 'move_pgt_entry': > mm/mremap.c:581:39: error: passing argument 1 of 'move_huge_pud' from incompatible pointer type [-Werror=incompatible-pointer-types] Thanks. --- a/mm/mremap.c~mm-mremap-thread-state-through-move-page-table-operation-fix +++ a/mm/mremap.c @@ -475,8 +475,9 @@ static bool move_huge_pud(struct pagetab return true; } #else -static bool move_huge_pud(struct vm_area_struct *vma, unsigned long old_addr, - unsigned long new_addr, pud_t *old_pud, pud_t *new_pud) +static bool move_huge_pud(struct pagetable_move_control *pmc, + unsigned long old_addr, unsigned long new_addr, + pud_t *old_pud, pud_t *new_pud) { WARN_ON_ONCE(1); return false; _