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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?4usgqySU4PlJ/BrSKPFp54Ia+sLtgGBV0N80kgBbbZdsKOh+Bl4vp514R5uK?= =?us-ascii?Q?YsY/YMsLXB789ZOXCEB5C/KKEhg1ntiFD8jaKD4n/5oHuiT41GYj9Vr5Ztoq?= =?us-ascii?Q?z3rQHCtj/JIN++PeVeYQ1vr8iXSYt+JmRavJMb0bZFwccGyufjMzcAkYJcFG?= =?us-ascii?Q?qHzNbuVEfbpEOPWaRnnHokOuSRDhQRwhX0Pw3blEq3TGlsFD5mQsbJr3aLs3?= =?us-ascii?Q?D6TXtK2Z4Al68zaPwaI2jMoTqTlLzfKndePH+Cr89YlfwM66blfeQ1MXXvvC?= =?us-ascii?Q?ut4NVtCx40XuV8YuaDNoqZW3FaBO0RMgIntiBEwkaDK1U9Y/kv/1IzYT/1zE?= =?us-ascii?Q?OIAxZv2tpJqdMajg8IOdDepGdLeQIHolydvLNlmgwueR7ktBh4JInjPLAfqc?= =?us-ascii?Q?olpXzL5PlpmV8pntn6jfY1UKUs4OaEP9h1CWVxNrHIFnfLcpME2LOrKn0Sun?= =?us-ascii?Q?NtKX06fUWEGpfZaSmlRknA7mH+PvpVMvM0QlyJaTE6qDn36kTfraAQmfWLDV?= =?us-ascii?Q?iBazzVt6jBPamNnsaH6xE/1edM6CFtQGpgPnHavvP2kZj3zh6m48JaCiGqeM?= =?us-ascii?Q?Cpw0FrcohILgvEw+7hPixC/dRASg+i8W+i9hjejk28Ekdrf2UNw4wqyIgEHN?= =?us-ascii?Q?3sp1o+5Y+9SZjPeqZVlFACjiZipHTIySuoKxN4JFMPGbf7BW87c2dHcqnKdZ?= =?us-ascii?Q?ETGvYf4IM6NY0SpcbTH2FZnKD0btWamG1a+kJI9o6jX7MXa+LNGFHHpUhQNQ?= =?us-ascii?Q?AZoTKF2i1BJyiSDa3eNfUQpYu+0t+QaUqHrZ9x3BInPoOKdgPgEU2LtqtgUX?= =?us-ascii?Q?PT1i6mfcViZEm7bGRIZLjkPxLtGP8I907+ijImBvVmplOvP5dxk0S1QntiOu?= =?us-ascii?Q?7kRJze+zJ0MfJAOCiZph0aVPehipJZP4r29ZfUJrCoaGBAczgkgj0wZlWudt?= =?us-ascii?Q?q4BHR5SmDxzwesFEWNgTg+/i8rFiVYQCW6JH5vTOuKYGzfgm0n48Gj5TLvty?= =?us-ascii?Q?U65w0MexZc0rbPZ5bGHkCiE6LdV0o5VnLIYGGWqzuZVbGpSxqEWrM7vypbwM?= =?us-ascii?Q?ZPFqPkgwbJz4dE+72pmbejGiElMKlDXOzHffqJaS4Jtiucq5b4fjD1Ca21No?= =?us-ascii?Q?dcHFl3G1LMOw5bbw7+clq6wZMylfBO0qCreHhtFJXhWYtvmL9QDrQY84iKwq?= =?us-ascii?Q?iszlo2GwYuRo4VlHJKYrCbYfloAeIX5FLgHpn83I6zYd7v9xPjGxAh+I2fy1?= =?us-ascii?Q?TUW/zRYBewOQsbTUiYhZ4XEqrcXZ3GHAltRAf4FuG5KJH33y60BQMBE2Ws26?= =?us-ascii?Q?YZo6/7efMaJ5ldzE/kIcmQ9PfC9prJETZtQ6yO1uR/ozhnxpYXedv60PL0lt?= =?us-ascii?Q?bK4OjUJ0MCOIt5chCQs6GxjFpwryXyqqYq5LNlMEzTTO9QAK/vLv0K7eW6SR?= =?us-ascii?Q?zckTzbk7AyhMkn7fYOKyexbK6WR8VUQSu16+82Ve05GB2K/f63o7RqyJjsIy?= =?us-ascii?Q?vrS3bICQl4EFUQsg3RjUqpJaZHSqB0pKbHfMcc+tP0fChkYmiNoOeL5FtQ9a?= =?us-ascii?Q?Lf11OWFBQ+kDZfMHtSynje3ayo9L3wUTa9A+YSbO?= X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-Network-Message-Id: 77563d6a-eed6-45b1-67f6-08de23efbc1a X-MS-Exchange-CrossTenant-AuthSource: BN5PR12MB9464.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 15 Nov 2025 02:36:09.4315 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: ugtx59sw/tVzXsuHN3J1+Zx/83ljpWTqhhytvRUscY/NvdpiaBX9VRowXsLSRE+i X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH7PR12MB5656 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