From: kernel test robot <lkp@intel.com>
To: "David Hildenbrand (Arm)" <david@kernel.org>
Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev
Subject: [davidhildenbrand:b4/clear_not_present_full_ptes 3/4] include/linux/pgtable.h:974:17: error: parameter 'addr' set but not used
Date: Fri, 12 Jun 2026 10:04:20 +0800 [thread overview]
Message-ID: <202606120923.3tqIxomB-lkp@intel.com> (raw)
tree: https://github.com/davidhildenbrand/linux b4/clear_not_present_full_ptes
head: 81719d3f861fee6a18ea50f011a411e7fa330df1
commit: cc8cb0687c651143e5bba6b80b26f188b5cd641d [3/4] mm: drop pte_clear_not_present_full()
config: um-allmodconfig (https://download.01.org/0day-ci/archive/20260612/202606120923.3tqIxomB-lkp@intel.com/config)
compiler: clang version 23.0.0git (https://github.com/llvm/llvm-project c8ad049db78ae52052722b6f42b54cd2a666072b)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260612/202606120923.3tqIxomB-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 <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202606120923.3tqIxomB-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from lib/test_bitops.c:12:
In file included from include/linux/slab.h:264:
In file included from include/linux/kasan.h:38:
>> include/linux/pgtable.h:974:17: error: parameter 'addr' set but not used [-Werror,-Wunused-but-set-parameter]
974 | unsigned long addr, pte_t *ptep, unsigned int nr, int full)
| ^
1 error generated.
vim +/addr +974 include/linux/pgtable.h
7df676974359f9 include/asm-generic/pgtable.h Bibo Mao 2020-05-27 956
a62fb92ac12ed3 include/linux/pgtable.h Ryan Roberts 2024-04-08 957 #ifndef clear_not_present_full_ptes
a62fb92ac12ed3 include/linux/pgtable.h Ryan Roberts 2024-04-08 958 /**
a62fb92ac12ed3 include/linux/pgtable.h Ryan Roberts 2024-04-08 959 * clear_not_present_full_ptes - Clear multiple not present PTEs which are
a62fb92ac12ed3 include/linux/pgtable.h Ryan Roberts 2024-04-08 960 * consecutive in the pgtable.
a62fb92ac12ed3 include/linux/pgtable.h Ryan Roberts 2024-04-08 961 * @mm: Address space the ptes represent.
a62fb92ac12ed3 include/linux/pgtable.h Ryan Roberts 2024-04-08 962 * @addr: Address of the first pte.
a62fb92ac12ed3 include/linux/pgtable.h Ryan Roberts 2024-04-08 963 * @ptep: Page table pointer for the first entry.
a62fb92ac12ed3 include/linux/pgtable.h Ryan Roberts 2024-04-08 964 * @nr: Number of entries to clear.
a62fb92ac12ed3 include/linux/pgtable.h Ryan Roberts 2024-04-08 965 * @full: Whether we are clearing a full mm.
a62fb92ac12ed3 include/linux/pgtable.h Ryan Roberts 2024-04-08 966 *
a62fb92ac12ed3 include/linux/pgtable.h Ryan Roberts 2024-04-08 967 * May be overridden by the architecture; otherwise, implemented as a simple
cc8cb0687c6511 include/linux/pgtable.h David Hildenbrand (Arm 2026-06-10 968) * loop over pte_clear().
a62fb92ac12ed3 include/linux/pgtable.h Ryan Roberts 2024-04-08 969 *
a62fb92ac12ed3 include/linux/pgtable.h Ryan Roberts 2024-04-08 970 * Context: The caller holds the page table lock. The PTEs are all not present.
a62fb92ac12ed3 include/linux/pgtable.h Ryan Roberts 2024-04-08 971 * The PTEs are all in the same PMD.
a62fb92ac12ed3 include/linux/pgtable.h Ryan Roberts 2024-04-08 972 */
a62fb92ac12ed3 include/linux/pgtable.h Ryan Roberts 2024-04-08 973 static inline void clear_not_present_full_ptes(struct mm_struct *mm,
a62fb92ac12ed3 include/linux/pgtable.h Ryan Roberts 2024-04-08 @974 unsigned long addr, pte_t *ptep, unsigned int nr, int full)
a62fb92ac12ed3 include/linux/pgtable.h Ryan Roberts 2024-04-08 975 {
a62fb92ac12ed3 include/linux/pgtable.h Ryan Roberts 2024-04-08 976 for (;;) {
cc8cb0687c6511 include/linux/pgtable.h David Hildenbrand (Arm 2026-06-10 977) pte_clear(mm, addr, ptep);
a62fb92ac12ed3 include/linux/pgtable.h Ryan Roberts 2024-04-08 978 if (--nr == 0)
a62fb92ac12ed3 include/linux/pgtable.h Ryan Roberts 2024-04-08 979 break;
a62fb92ac12ed3 include/linux/pgtable.h Ryan Roberts 2024-04-08 980 ptep++;
a62fb92ac12ed3 include/linux/pgtable.h Ryan Roberts 2024-04-08 981 addr += PAGE_SIZE;
a62fb92ac12ed3 include/linux/pgtable.h Ryan Roberts 2024-04-08 982 }
a62fb92ac12ed3 include/linux/pgtable.h Ryan Roberts 2024-04-08 983 }
a62fb92ac12ed3 include/linux/pgtable.h Ryan Roberts 2024-04-08 984 #endif
a62fb92ac12ed3 include/linux/pgtable.h Ryan Roberts 2024-04-08 985
:::::: The code at line 974 was first introduced by commit
:::::: a62fb92ac12ed39df4930dca599a3b427552882a mm: swap: free_swap_and_cache_nr() as batched free_swap_and_cache()
:::::: TO: Ryan Roberts <ryan.roberts@arm.com>
:::::: CC: Andrew Morton <akpm@linux-foundation.org>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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