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X-CSE-ConnectionGUID: uxpytq5LRc2lo+W/RCCf7A== X-CSE-MsgGUID: sM41l7J7Tl2pTyHV4wLtzw== X-IronPort-AV: E=McAfee;i="6800,10657,11777"; a="66509683" X-IronPort-AV: E=Sophos;i="6.23,219,1770624000"; d="scan'208";a="66509683" Received: from fmviesa003.fm.intel.com ([10.60.135.143]) by fmvoesa110.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 May 2026 01:25:15 -0700 X-CSE-ConnectionGUID: B2J325RgShe88oJ8A3i11Q== X-CSE-MsgGUID: 3WbpjVRXRLe02GjYVMTs3Q== X-ExtLoop1: 1 Received: from lkp-server01.sh.intel.com (HELO 9ec114424ce8) ([10.239.97.150]) by fmviesa003.fm.intel.com with ESMTP; 06 May 2026 01:25:14 -0700 Received: from kbuild by 9ec114424ce8 with local (Exim 4.98.2) (envelope-from ) id 1wKXZA-000000000or-0LMv; Wed, 06 May 2026 08:25:12 +0000 Date: Wed, 06 May 2026 16:24:42 +0800 From: kernel test robot To: "David Hildenbrand (Arm)" Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev Subject: [davidhildenbrand:b4/bootmem_info 10/19] arch/s390/mm/vmem.c:42:15: warning: unused variable 'nr_pages' Message-ID: <202605061622.0MCmYK6p-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: llvm@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 (https://download.01.org/0day-ci/archive/20260506/202605061622.0MCmYK6p-lkp@intel.com/config) compiler: clang version 23.0.0git (https://github.com/llvm/llvm-project 5bac06718f502014fade905512f1d26d578a18f3) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260506/202605061622.0MCmYK6p-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/202605061622.0MCmYK6p-lkp@intel.com/ All warnings (new ones prefixed by >>): >> arch/s390/mm/vmem.c:42:15: warning: unused variable 'nr_pages' [-Wunused-variable] 42 | unsigned int nr_pages = 1 << order; | ^~~~~~~~ 1 warning generated. 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