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X-CSE-ConnectionGUID: qhEdaZbrTSiknf55vnXUyg== X-CSE-MsgGUID: m5q1ikpRRl2ylKC1XfPWXA== X-IronPort-AV: E=McAfee;i="6800,10657,11744"; a="76094696" X-IronPort-AV: E=Sophos;i="6.23,150,1770624000"; d="scan'208";a="76094696" Received: from fmviesa001.fm.intel.com ([10.60.135.141]) by orvoesa108.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 30 Mar 2026 12:53:40 -0700 X-CSE-ConnectionGUID: XZu//cFaRkKDBIm4FmWhFA== X-CSE-MsgGUID: V51kk7GfTTq6soRmxdEGvA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,150,1770624000"; d="scan'208";a="249366647" Received: from lkp-server01.sh.intel.com (HELO 283bf2e1b94a) ([10.239.97.150]) by fmviesa001.fm.intel.com with ESMTP; 30 Mar 2026 12:53:39 -0700 Received: from kbuild by 283bf2e1b94a with local (Exim 4.98.2) (envelope-from ) id 1w7Ig3-000000001cP-3xPj; Mon, 30 Mar 2026 19:53:35 +0000 Date: Tue, 31 Mar 2026 03:52:49 +0800 From: kernel test robot To: Thomas Ballasi Cc: oe-kbuild-all@lists.linux.dev, David Hildenbrand , Andrew Morton , Linux Memory Management List Subject: [akpm-mm:mm-stable 86/300] mm/vmscan.c:6585:66: sparse: sparse: Using plain integer as NULL pointer Message-ID: <202603310305.xSA9Y9fh-lkp@intel.com> User-Agent: s-nail v14.9.25 X-Stat-Signature: mgj883dpwkgh5wjpcg4sjanaxkncfscz X-Rspamd-Queue-Id: C5C8F4000E X-Rspam-User: X-Rspamd-Server: rspam03 X-HE-Tag: 1774900421-853393 X-HE-Meta: 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 9btockH/ YjnyQVAtDIXRRzZAJ8deeSAaVvJpNLqARu/HPhvq4+zbLNiR0IkFmPMOVd5IOPS3daNLjBe5mWko56nqUOwaePL0dFpnE4zODxDSxIbJ3XxD/idgeDg2WzFpEcMNQY3C/xgFx/llM26twt30nMt5/JNtMgEpamKgmVNLyD4tIRgoHJRuKU8RrgL7PMNFOwKb8eMp3cXWMoVavK1v9opL7D8UP7DXDUv5NPaPzYtqzhclRfr820brZSM/xyg== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: tree: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-stable head: bc2e0d3bf965b1ee6c09b104447158725b831d84 commit: f9504d82d9d52bf557e87dab204fac4d93d53360 [86/300] mm: vmscan: add cgroup IDs to vmscan tracepoints config: alpha-randconfig-r122-20260330 (https://download.01.org/0day-ci/archive/20260331/202603310305.xSA9Y9fh-lkp@intel.com/config) compiler: alpha-linux-gcc (GCC) 10.5.0 sparse: v0.6.5-rc1 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260331/202603310305.xSA9Y9fh-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/202603310305.xSA9Y9fh-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) >> mm/vmscan.c:6585:66: sparse: sparse: Using plain integer as NULL pointer mm/vmscan.c:6589:58: sparse: sparse: Using plain integer as NULL pointer vim +6585 mm/vmscan.c 6551 6552 unsigned long try_to_free_pages(struct zonelist *zonelist, int order, 6553 gfp_t gfp_mask, nodemask_t *nodemask) 6554 { 6555 unsigned long nr_reclaimed; 6556 struct scan_control sc = { 6557 .nr_to_reclaim = SWAP_CLUSTER_MAX, 6558 .gfp_mask = current_gfp_context(gfp_mask), 6559 .reclaim_idx = gfp_zone(gfp_mask), 6560 .order = order, 6561 .nodemask = nodemask, 6562 .priority = DEF_PRIORITY, 6563 .may_writepage = 1, 6564 .may_unmap = 1, 6565 .may_swap = 1, 6566 }; 6567 6568 /* 6569 * scan_control uses s8 fields for order, priority, and reclaim_idx. 6570 * Confirm they are large enough for max values. 6571 */ 6572 BUILD_BUG_ON(MAX_PAGE_ORDER >= S8_MAX); 6573 BUILD_BUG_ON(DEF_PRIORITY > S8_MAX); 6574 BUILD_BUG_ON(MAX_NR_ZONES > S8_MAX); 6575 6576 /* 6577 * Do not enter reclaim if fatal signal was delivered while throttled. 6578 * 1 is returned so that the page allocator does not OOM kill at this 6579 * point. 6580 */ 6581 if (throttle_direct_reclaim(sc.gfp_mask, zonelist, nodemask)) 6582 return 1; 6583 6584 set_task_reclaim_state(current, &sc.reclaim_state); > 6585 trace_mm_vmscan_direct_reclaim_begin(sc.gfp_mask, order, 0); 6586 6587 nr_reclaimed = do_try_to_free_pages(zonelist, &sc); 6588 6589 trace_mm_vmscan_direct_reclaim_end(nr_reclaimed, 0); 6590 set_task_reclaim_state(current, NULL); 6591 6592 return nr_reclaimed; 6593 } 6594 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki