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charset=us-ascii Content-Disposition: inline In-Reply-To: <20250829183159.2223948-9-max.kellermann@ionos.com> X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: 2BDC7120003 X-Stat-Signature: 9q86rco715fdgfindq43yt6grkrccsuy X-Rspam-User: X-HE-Tag: 1756574882-275821 X-HE-Meta: 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 1/lU9zQJ lsKp3TBPSQp8AO+TTwk8+j+KTHVfKYQ7aMCvYJADfdHlzdzXPJkQaIhPsOXELktSq6KVVW4qwTqLQJVT7lS3gO/frsvfVUcsjeNTllZJh9m1xFCz9ZJRm7vJJ91ySz6+3H8Lr8ac/Qh4TTY1SzzVZ6ZDMemTu+eDudfR9lUjEUgPXh90mmRwgMxQMrKkEY6QTfY76BTD7POU7CMtGThUuX9qgFHk+aPG+oFhNKq7tfeIWdow1jz33fGOxfSl8f/fbYXivBqBQ7zTllG+tPwA6CfDtMN+4/wnl67yRpNzVNaa2DI5abvHGfXv/oBlOkyvvQDWQtkA0XUr2oBizMUjL8WoC0hdnmCD3bnJ3kRNb33OV5eHLgy1QKMJInBZ1ChcjUhHqUblZCIEf/eEGU1gnI+/bqkyqenrogG1s3zbzE8i0otljk55dWyAQYg== 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 Max, kernel test robot noticed the following build warnings: [auto build test WARNING on akpm-mm/mm-everything] url: https://github.com/intel-lab-lkp/linux/commits/Max-Kellermann/mm-shmem-add-const-to-lots-of-pointer-parameters/20250830-023442 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/20250829183159.2223948-9-max.kellermann%40ionos.com patch subject: [PATCH 08/12] arch, mm/util: add const to arch_pick_mmap_layout() parameter config: s390-randconfig-002-20250830 (https://download.01.org/0day-ci/archive/20250831/202508310153.i186f6o5-lkp@intel.com/config) compiler: s390-linux-gcc (GCC) 8.5.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250831/202508310153.i186f6o5-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/202508310153.i186f6o5-lkp@intel.com/ All warnings (new ones prefixed by >>): arch/s390/mm/mmap.c: In function 'arch_pick_mmap_layout': >> arch/s390/mm/mmap.c:187:44: warning: passing argument 2 of 'mmap_base' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] mm->mmap_base = mmap_base(random_factor, rlim_stack); ^~~~~~~~~~ arch/s390/mm/mmap.c:50:26: note: expected 'struct rlimit *' but argument is of type 'const struct rlimit *' struct rlimit *rlim_stack) ~~~~~~~~~~~~~~~^~~~~~~~~~ vim +187 arch/s390/mm/mmap.c 9b11c7912d00d0 Martin Schwidefsky 2017-04-24 167 6252d702c5311c Martin Schwidefsky 2008-02-09 168 /* 6252d702c5311c Martin Schwidefsky 2008-02-09 169 * This function, called very early during the creation of a new 6252d702c5311c Martin Schwidefsky 2008-02-09 170 * process VM image, sets up which VM layout function to use: 6252d702c5311c Martin Schwidefsky 2008-02-09 171 */ f547a726bf8dd8 Max Kellermann 2025-08-29 172 void arch_pick_mmap_layout(struct mm_struct *mm, const struct rlimit *rlim_stack) 6252d702c5311c Martin Schwidefsky 2008-02-09 173 { 8e89a356feb6f1 Kees Cook 2015-04-14 174 unsigned long random_factor = 0UL; 8e89a356feb6f1 Kees Cook 2015-04-14 175 8e89a356feb6f1 Kees Cook 2015-04-14 176 if (current->flags & PF_RANDOMIZE) 2b68f6caeac271 Kees Cook 2015-04-14 177 random_factor = arch_mmap_rnd(); 8e89a356feb6f1 Kees Cook 2015-04-14 178 6252d702c5311c Martin Schwidefsky 2008-02-09 179 /* 6252d702c5311c Martin Schwidefsky 2008-02-09 180 * Fall back to the standard layout if the personality 6252d702c5311c Martin Schwidefsky 2008-02-09 181 * bit is set, or if the expected stack growth is unlimited: 6252d702c5311c Martin Schwidefsky 2008-02-09 182 */ 8f2af155b51358 Kees Cook 2018-04-10 183 if (mmap_is_legacy(rlim_stack)) { 8e89a356feb6f1 Kees Cook 2015-04-14 184 mm->mmap_base = mmap_base_legacy(random_factor); 40ae96eabea408 Lorenzo Stoakes 2025-08-12 185 mm_flags_clear(MMF_TOPDOWN, mm); 6252d702c5311c Martin Schwidefsky 2008-02-09 186 } else { 8f2af155b51358 Kees Cook 2018-04-10 @187 mm->mmap_base = mmap_base(random_factor, rlim_stack); c52d638d6b5da2 Lorenzo Stoakes 2025-08-13 188 mm_flags_set(MMF_TOPDOWN, mm); 6252d702c5311c Martin Schwidefsky 2008-02-09 189 } 6252d702c5311c Martin Schwidefsky 2008-02-09 190 } fd5d210fa66bee Anshuman Khandual 2022-07-11 191 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki