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X-CSE-ConnectionGUID: jV3OQuSZRR6hQ3aWV+ZxPg== X-CSE-MsgGUID: v0HMilIFSMytTJmKP3PkHg== X-IronPort-AV: E=McAfee;i="6800,10657,11777"; a="81480946" X-IronPort-AV: E=Sophos;i="6.23,218,1770624000"; d="scan'208";a="81480946" Received: from fmviesa010.fm.intel.com ([10.60.135.150]) by fmvoesa107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 05 May 2026 19:44:12 -0700 X-CSE-ConnectionGUID: nYOOMJghQACP33YWKuxWnA== X-CSE-MsgGUID: s+NYO3RISoqgXmpl8P5KQQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,218,1770624000"; d="scan'208";a="231602459" Received: from igk-lkp-server01.igk.intel.com (HELO bdf09bfdbd5f) ([10.211.93.152]) by fmviesa010.fm.intel.com with ESMTP; 05 May 2026 19:44:10 -0700 Received: from kbuild by bdf09bfdbd5f with local (Exim 4.98.2) (envelope-from ) id 1wKSF6-000000006Qf-12nn; Wed, 06 May 2026 02:44:08 +0000 Date: Wed, 06 May 2026 04:43:38 +0200 From: kernel test robot To: "David Hildenbrand (Arm)" Cc: oe-kbuild-all@lists.linux.dev Subject: [davidhildenbrand:b4/bootmem_info 10/19] arch/s390/mm/vmem.c:42:22: warning: unused variable 'nr_pages' Message-ID: <202605060456.ObYmLlHg-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: oe-kbuild-all@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: tree: https://github.com/davidhildenbrand/linux b4/bootmem_info head: 9bd8b9ac2bf1b3e7ffee070da9c2f0607c507207 commit: ad0ab8ac08f34bb72542795d52e15d8b5d174973 [10/19] s390/mm: use free_reserved_pages() in vmem_free_pages() config: s390-allnoconfig-bpf (https://download.01.org/0day-ci/archive/20260506/202605060456.ObYmLlHg-lkp@intel.com/config) compiler: s390x-linux-gnu-gcc (Debian 14.2.0-19) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260506/202605060456.ObYmLlHg-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/202605060456.ObYmLlHg-lkp@intel.com/ All warnings (new ones prefixed by >>): arch/s390/mm/vmem.c: In function 'vmem_free_pages': >> arch/s390/mm/vmem.c:42:22: warning: unused variable 'nr_pages' [-Wunused-variable] 42 | unsigned int nr_pages = 1 << order; | ^~~~~~~~ vim +/nr_pages +42 arch/s390/mm/vmem.c 67060d9c1f5d91 Heiko Carstens 2008-05-30 39 1a65b73ae9abd6 Sumanth Korikkar 2024-01-08 40 static void vmem_free_pages(unsigned long addr, int order, struct vmem_altmap *altmap) 9ec8fa8dc331be David Hildenbrand 2020-07-22 41 { d5e88d32de4e4c Sumanth Korikkar 2025-10-10 @42 unsigned int nr_pages = 1 << order; d5e88d32de4e4c Sumanth Korikkar 2025-10-10 43 struct page *page; d5e88d32de4e4c Sumanth Korikkar 2025-10-10 44 1a65b73ae9abd6 Sumanth Korikkar 2024-01-08 45 if (altmap) { 1a65b73ae9abd6 Sumanth Korikkar 2024-01-08 46 vmem_altmap_free(altmap, 1 << order); 1a65b73ae9abd6 Sumanth Korikkar 2024-01-08 47 return; 1a65b73ae9abd6 Sumanth Korikkar 2024-01-08 48 } d5e88d32de4e4c Sumanth Korikkar 2025-10-10 49 page = virt_to_page((void *)addr); d5e88d32de4e4c Sumanth Korikkar 2025-10-10 50 if (PageReserved(page)) { d5e88d32de4e4c Sumanth Korikkar 2025-10-10 51 /* allocated from memblock */ ad0ab8ac08f34b David Hildenbrand (Arm 2026-03-12 52) free_reserved_pages(page, order); d5e88d32de4e4c Sumanth Korikkar 2025-10-10 53 } else { 9ec8fa8dc331be David Hildenbrand 2020-07-22 54 free_pages(addr, order); 9ec8fa8dc331be David Hildenbrand 2020-07-22 55 } d5e88d32de4e4c Sumanth Korikkar 2025-10-10 56 } 9ec8fa8dc331be David Hildenbrand 2020-07-22 57 :::::: The code at line 42 was first introduced by commit :::::: d5e88d32de4e4ce289d107939da970763669d631 s390/mm: Support removal of boot-allocated virtual memory map :::::: TO: Sumanth Korikkar :::::: CC: Heiko Carstens -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki