From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.16]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 340AA23098A for ; Fri, 22 Nov 2024 13:15:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.16 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732281336; cv=none; b=JzVVL2Rbi3NUhOVR7miV5y5uiDlqs1wXWpTVS6IQsAblzCL6nyig7aDK2hy+wQdXSSmOlGFzko7fhi1iMa9wvZPrJJfcZi2IoOTHQsPu5oWAm9pPNv0C2zBC/wV4Gg4E65VZ18OUek/ORXb4GZPFAdFQee7p7M3qaKNrlUeZfzU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732281336; c=relaxed/simple; bh=3NfgQSQbPSWjqyhvjWd/c9keYcY/Eq1z6LeybA/ZY5o=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type: Content-Disposition; b=ssXLN+PV8teXl09/ocXXJ0QlpehWjjHNfhR/W8EWUz1Oxha3F/WGQyDXGz35tvlmCHx82BWhjWp0lrCNFY4MINRfHkqHhy+kdG3mh82uNsLQFaJnLzVzImrbbusR1nKT43e+tO8+/SFET+NTxxcsV7pWqgNL4Y4jwLE1qjgzXP8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=dcy8s81/; arc=none smtp.client-ip=192.198.163.16 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="dcy8s81/" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1732281334; x=1763817334; h=date:from:to:cc:subject:message-id:mime-version; bh=3NfgQSQbPSWjqyhvjWd/c9keYcY/Eq1z6LeybA/ZY5o=; b=dcy8s81/g4c7hFz4+xuBsKMKMzOGwlP5ficE8e7wYGCOqKtRZj1+yyNP BjZxd45slfybyc9KnBhdvtIbfB47S0DxcbN8ILBcMn3JZTwFshrLa3Abn lKX/LlqWaGOqtB2T1EFzRd0yTBbBe9G1q3Vu8CFnljw74FZfTe+s3baih oUWdIdv5dUHEbS1FA9zZSiKK3x7gsXrHrUHgiPqxOJpRcIQrT0o+L3FWA p8vgx0KIYWnWUFFOvXOtZ7947RiZ14laXvLHdWAAa6pcizf8rXGBJB5Ug wTi+fGKoU6km434dPYHxaHs1y7Tlu73cH0k+Dfi+cwLvRZBSKa0JI7PX2 A==; X-CSE-ConnectionGUID: NlEC9SSRQRqukk1C78fMag== X-CSE-MsgGUID: wietsCjzRZyzeq1tkuufLg== X-IronPort-AV: E=McAfee;i="6700,10204,11264"; a="20025235" X-IronPort-AV: E=Sophos;i="6.12,175,1728975600"; d="scan'208";a="20025235" Received: from fmviesa002.fm.intel.com ([10.60.135.142]) by fmvoesa110.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Nov 2024 05:15:29 -0800 X-CSE-ConnectionGUID: YTLrDxpbRDm6TSZhi+ZYrA== X-CSE-MsgGUID: GasDikVTStSHgoXuVj/jPQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.12,175,1728975600"; d="scan'208";a="113851126" Received: from lkp-server01.sh.intel.com (HELO 8122d2fc1967) ([10.239.97.150]) by fmviesa002.fm.intel.com with ESMTP; 22 Nov 2024 05:15:28 -0800 Received: from kbuild by 8122d2fc1967 with local (Exim 4.96) (envelope-from ) id 1tETVN-0003vV-2w; Fri, 22 Nov 2024 13:15:25 +0000 Date: Fri, 22 Nov 2024 21:15:08 +0800 From: kernel test robot To: Ingo Molnar Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org Subject: kernel/sched/syscalls.c:1196:1: sparse: sparse: Using plain integer as NULL pointer Message-ID: <202411222158.Csalijl5-lkp@intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 28eb75e178d389d325f1666e422bc13bbbb9804c commit: 04746ed80bcf3130951ed4d5c1bc5b0bcabdde22 sched/syscalls: Split out kernel/sched/syscalls.c from kernel/sched/core.c date: 6 months ago config: s390-randconfig-r133-20241121 (https://download.01.org/0day-ci/archive/20241122/202411222158.Csalijl5-lkp@intel.com/config) compiler: s390-linux-gcc (GCC) 14.2.0 reproduce: (https://download.01.org/0day-ci/archive/20241122/202411222158.Csalijl5-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/202411222158.Csalijl5-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) kernel/sched/rt.c:2067:13: sparse: struct task_struct * kernel/sched/rt.c:2067:13: sparse: struct task_struct [noderef] __rcu * kernel/sched/rt.c:2417:54: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *tsk @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/rt.c:2417:54: sparse: expected struct task_struct *tsk kernel/sched/rt.c:2417:54: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/rt.c:2419:40: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/rt.c:2419:40: sparse: expected struct task_struct *p kernel/sched/rt.c:2419:40: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/rt.c:2419:61: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/rt.c:2419:61: sparse: expected struct task_struct *p kernel/sched/rt.c:2419:61: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/build_policy.c: note: in included file: kernel/sched/deadline.c:2401:23: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/deadline.c:2401:23: sparse: expected struct task_struct *p kernel/sched/deadline.c:2401:23: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/deadline.c:2411:13: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/deadline.c:2411:13: sparse: struct task_struct * kernel/sched/deadline.c:2411:13: sparse: struct task_struct [noderef] __rcu * kernel/sched/deadline.c:2519:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/deadline.c:2519:25: sparse: struct task_struct * kernel/sched/deadline.c:2519:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/deadline.c:2026:42: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct sched_dl_entity const *b @@ got struct sched_dl_entity [noderef] __rcu * @@ kernel/sched/deadline.c:2026:42: sparse: expected struct sched_dl_entity const *b kernel/sched/deadline.c:2026:42: sparse: got struct sched_dl_entity [noderef] __rcu * kernel/sched/deadline.c:2037:38: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *tsk @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/deadline.c:2037:38: sparse: expected struct task_struct *tsk kernel/sched/deadline.c:2037:38: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/deadline.c:1220:23: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/deadline.c:1220:23: sparse: expected struct task_struct *p kernel/sched/deadline.c:1220:23: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/deadline.c:1444:38: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *curr @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/deadline.c:1444:38: sparse: expected struct task_struct *curr kernel/sched/deadline.c:1444:38: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/deadline.c:2262:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/deadline.c:2262:9: sparse: expected struct sched_domain *[assigned] sd kernel/sched/deadline.c:2262:9: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/deadline.c:1911:14: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct task_struct *curr @@ got struct task_struct [noderef] __rcu * @@ kernel/sched/deadline.c:1911:14: sparse: expected struct task_struct *curr kernel/sched/deadline.c:1911:14: sparse: got struct task_struct [noderef] __rcu * kernel/sched/deadline.c:1987:43: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/deadline.c:1987:43: sparse: expected struct task_struct *p kernel/sched/deadline.c:1987:43: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/deadline.c:2566:38: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *tsk @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/deadline.c:2566:38: sparse: expected struct task_struct *tsk kernel/sched/deadline.c:2566:38: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/deadline.c:2568:23: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/deadline.c:2568:23: sparse: expected struct task_struct *p kernel/sched/deadline.c:2568:23: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/deadline.c:2570:44: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct sched_dl_entity const *b @@ got struct sched_dl_entity [noderef] __rcu * @@ kernel/sched/deadline.c:2570:44: sparse: expected struct sched_dl_entity const *b kernel/sched/deadline.c:2570:44: sparse: got struct sched_dl_entity [noderef] __rcu * kernel/sched/deadline.c:2745:22: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/deadline.c:2745:22: sparse: struct task_struct [noderef] __rcu * kernel/sched/deadline.c:2745:22: sparse: struct task_struct * kernel/sched/deadline.c:2794:32: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *p @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/build_policy.c: note: in included file: kernel/sched/syscalls.c:206:22: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/syscalls.c:206:22: sparse: struct task_struct [noderef] __rcu * kernel/sched/syscalls.c:206:22: sparse: struct task_struct * kernel/sched/build_policy.c: note: in included file (through include/linux/mmzone.h, include/linux/gfp.h, include/linux/umh.h, include/linux/kmod.h, ...): include/linux/page-flags.h:240:46: sparse: sparse: self-comparison always evaluates to false include/linux/page-flags.h:240:46: sparse: sparse: self-comparison always evaluates to false kernel/sched/build_policy.c: note: in included file (through include/linux/smp.h, include/linux/sched/clock.h): include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true kernel/sched/build_policy.c: note: in included file: kernel/sched/sched.h:2156:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2156:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2156:25: sparse: struct task_struct * kernel/sched/sched.h:2156:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2156:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2156:25: sparse: struct task_struct * kernel/sched/sched.h:2156:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2156:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2156:25: sparse: struct task_struct * kernel/sched/sched.h:2156:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2156:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2156:25: sparse: struct task_struct * kernel/sched/sched.h:2156:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2156:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2156:25: sparse: struct task_struct * kernel/sched/sched.h:2156:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2156:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2156:25: sparse: struct task_struct * kernel/sched/sched.h:2156:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2156:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2156:25: sparse: struct task_struct * kernel/sched/sched.h:2156:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2156:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2156:25: sparse: struct task_struct * kernel/sched/sched.h:2328:9: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2328:9: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2328:9: sparse: struct task_struct * kernel/sched/sched.h:2156:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2156:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2156:25: sparse: struct task_struct * kernel/sched/sched.h:2328:9: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2328:9: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2328:9: sparse: struct task_struct * kernel/sched/build_policy.c: note: in included file: >> kernel/sched/syscalls.c:1196:1: sparse: sparse: Using plain integer as NULL pointer >> kernel/sched/syscalls.c:1196:1: sparse: sparse: Using plain integer as NULL pointer kernel/sched/syscalls.c:1386:1: sparse: sparse: Using plain integer as NULL pointer kernel/sched/syscalls.c:1386:1: sparse: sparse: Using plain integer as NULL pointer kernel/sched/syscalls.c:1402:6: sparse: sparse: context imbalance in 'sched_getaffinity' - wrong count at exit kernel/sched/syscalls.c:1431:1: sparse: sparse: Using plain integer as NULL pointer kernel/sched/syscalls.c:1431:1: sparse: sparse: Using plain integer as NULL pointer kernel/sched/syscalls.c:1676:1: sparse: sparse: Using plain integer as NULL pointer kernel/sched/syscalls.c:1676:1: sparse: sparse: Using plain integer as NULL pointer kernel/sched/syscalls.c:1689:1: sparse: sparse: Using plain integer as NULL pointer kernel/sched/syscalls.c:1689:1: sparse: sparse: Using plain integer as NULL pointer kernel/sched/build_policy.c: note: in included file: kernel/sched/rt.c:1707:15: sparse: sparse: dereference of noderef expression vim +1196 kernel/sched/syscalls.c 1188 1189 /** 1190 * sys_sched_getattr - similar to sched_getparam, but with sched_attr 1191 * @pid: the pid in question. 1192 * @uattr: structure containing the extended parameters. 1193 * @usize: sizeof(attr) for fwd/bwd comp. 1194 * @flags: for future extension. 1195 */ > 1196 SYSCALL_DEFINE4(sched_getattr, pid_t, pid, struct sched_attr __user *, uattr, 1197 unsigned int, usize, unsigned int, flags) 1198 { 1199 struct sched_attr kattr = { }; 1200 struct task_struct *p; 1201 int retval; 1202 1203 if (!uattr || pid < 0 || usize > PAGE_SIZE || 1204 usize < SCHED_ATTR_SIZE_VER0 || flags) 1205 return -EINVAL; 1206 1207 scoped_guard (rcu) { 1208 p = find_process_by_pid(pid); 1209 if (!p) 1210 return -ESRCH; 1211 1212 retval = security_task_getscheduler(p); 1213 if (retval) 1214 return retval; 1215 1216 kattr.sched_policy = p->policy; 1217 if (p->sched_reset_on_fork) 1218 kattr.sched_flags |= SCHED_FLAG_RESET_ON_FORK; 1219 get_params(p, &kattr); 1220 kattr.sched_flags &= SCHED_FLAG_ALL; 1221 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki