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Howlett" Subject: [akpm-mm:mm-new 123/137] arch/s390/mm/mmap.c:188:3: error: call to undeclared function 'mm_flag_set'; ISO C99 and later do not support implicit function declarations Message-ID: <202508132154.feFNDPyq-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-Rspamd-Queue-Id: A1357C0008 X-Rspamd-Server: rspam04 X-Rspam-User: X-Stat-Signature: okwe3pwwtm7gs7n9ayfunjq7bi3y6qrz X-HE-Tag: 1755092351-448754 X-HE-Meta: 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 2pLU023P ieP8xUcibx06swvksYOFoa92uNfbp6S5qTBmxjpUaQARViSuD88rngsoItaaB0BmVdv8O3suWKOU+v8lZI9b+7ulKZ263dk4Z5i9dZvM7El5pCgr3X8UVWTfzWR5YsGJz0FrMq7skJuk58JFQ7oSt+5QnzYkMAWU6zWilrVcryzmtHJedK9eGR18v1j6FUUxoCMakRNWjSLniTIfZzI4RAUU5ku2P8atIuG73gPYAPbd3PfZQsRNmcgkTEyf5e9vJAvH5nwthajtM0b5MHN7FNulcqxVNChuKRzfPJLSSwHsfKvGS9nTg7lUA/IaWiq3hqMVbKN/ZglIHOEp64w5BxUPpF7sWKQP/nwbZ6gbcCi5ZSr83A4AjulImUYaaDK2a7XmgYcq8aoYRzhma6odaLrLkQW5oZPfW4u8LeqnHHO7Z7gTF5on9Wvv3dA== 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 Lorenzo, FYI, the error/warning was bisected to this commit, please ignore it if it's irrelevant. tree: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-new head: 694c8e78f486b09137ee3efadae044d01aba971b commit: 70fd92efa9e96967353bb39665bac8f5276aaaae [123/137] mm: convert arch-specific code to mm_flags_*() accessors config: s390-allnoconfig (https://download.01.org/0day-ci/archive/20250813/202508132154.feFNDPyq-lkp@intel.com/config) compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 3769ce013be2879bf0b329c14a16f5cb766f26ce) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250813/202508132154.feFNDPyq-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/202508132154.feFNDPyq-lkp@intel.com/ All errors (new ones prefixed by >>): >> arch/s390/mm/mmap.c:188:3: error: call to undeclared function 'mm_flag_set'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 188 | mm_flag_set(MMF_TOPDOWN, mm); | ^ arch/s390/mm/mmap.c:188:3: note: did you mean 'mm_flags_set'? include/linux/mm.h:740:20: note: 'mm_flags_set' declared here 740 | static inline void mm_flags_set(int flag, struct mm_struct *mm) | ^ 1 error generated. vim +/mm_flag_set +188 arch/s390/mm/mmap.c 167 168 /* 169 * This function, called very early during the creation of a new 170 * process VM image, sets up which VM layout function to use: 171 */ 172 void arch_pick_mmap_layout(struct mm_struct *mm, struct rlimit *rlim_stack) 173 { 174 unsigned long random_factor = 0UL; 175 176 if (current->flags & PF_RANDOMIZE) 177 random_factor = arch_mmap_rnd(); 178 179 /* 180 * Fall back to the standard layout if the personality 181 * bit is set, or if the expected stack growth is unlimited: 182 */ 183 if (mmap_is_legacy(rlim_stack)) { 184 mm->mmap_base = mmap_base_legacy(random_factor); 185 mm_flags_clear(MMF_TOPDOWN, mm); 186 } else { 187 mm->mmap_base = mmap_base(random_factor, rlim_stack); > 188 mm_flag_set(MMF_TOPDOWN, mm); 189 } 190 } 191 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki