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 EZ3W5AFy aZTDpT7CIIzx+sWIY1BSCrnFvqBS8/ROjOZeb+QBsuX4m4zSvvhoU2PkXmE+UzazIoulw9a9OLumrmlUkuKe0K9od1N3xB5MTc3+6fXmdekCmdml9+K0w1rPnx8Swi9Jpbfs/YOIW9MhD61vJ9tdqBt1MWGRwHO13HbGeYoGqtNQoGcDtBdg7YKeRQKFmxB6YoKPbuTHWs3qCErphGNTT7yh2PjAlnYxYrAQfQxkKqYVIrC2I2Nua0oeQP1TBzitTySYYU//7yrBugNlHo3F//bYM3hfeMTzxJRozCyzmzhhwwr/TgRkuIl16WR4WrNMLO1QdnGhHXMVkF/D5p6mEE3LR2RZSk4ZPEP52V/vJzXvpVhuaN8lAZ2Bd2LnpK3l6vBFIII8UZhiYcV/HvMG0/YdFyX3br1VA+35xh/eHK2ggsIvv2QJ6NwO9eG2fS37SotKApgz7sNWW7igiclrwmYSaKxHkrgkVzyjJo/JdI+izsce6Ig+u2y3PYy0IdkPIyFVy/CViNZHfchVgWmCNE0OSVUd9jsNhqGVbdjfv3XyJgWeljERSON+qYgTAeVWFGJGz79xo2VFCPUV9zJJQsUJ+fqymIDy10RibqNFOuNWdZjVGWp2pWF0ivmAL4gnL4H2W 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: On 14 Nov 2025, at 21:33, Balbir Singh wrote: > On 11/15/25 13:15, kernel test robot wrote: >> Hi Balbir, >> >> 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/Balbir-Singh/mm= -huge_memory-c-introduce-folio_split_unmapped/20251114-093541 >> base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm= -everything >> patch link: https://lore.kernel.org/r/20251114012228.2634882-1-balb= irs%40nvidia.com >> patch subject: [PATCH] mm/huge_memory.c: introduce folio_split_unmappe= d >> config: arm64-randconfig-002-20251115 (https://download.01.org/0day-ci= /archive/20251115/202511151007.F1gixfc8-lkp@intel.com/config) >> compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3= b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff) >> reproduce (this is a W=3D1 build): (https://download.01.org/0day-ci/ar= chive/20251115/202511151007.F1gixfc8-lkp@intel.com/reproduce) >> >> If you fix the issue in a separate patch/commit (i.e. not just a new v= ersion of >> the same patch/commit), kindly add following tags >> | Reported-by: kernel test robot >> | Closes: https://lore.kernel.org/oe-kbuild-all/202511151007.F1gixfc8-= lkp@intel.com/ >> >> All warnings (new ones prefixed by >>): >> >>>> mm/huge_memory.c:3751:6: warning: variable 'nr_shmem_dropped' set bu= t not used [-Wunused-but-set-variable] >> 3751 | int nr_shmem_dropped =3D 0; >> | ^ >> 1 warning generated. >> >> >> vim +/nr_shmem_dropped +3751 mm/huge_memory.c >> > > [...] > > Thanks for the report, I'll send an updated version after I investigate= it nr_shmem_dropped is updated in __folio_freeze_and_split_unmapped() but is used in its caller. It needs to be passed into __folio_freeze_and_spli= t_unmapped(). -- Best Regards, Yan, Zi