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X-CSE-ConnectionGUID: qYffdv4ASk65X/MwGSeNIQ== X-CSE-MsgGUID: xXBDobPHTrOb2BeN5lNgfg== X-IronPort-AV: E=McAfee;i="6800,10657,11916"; a="78738325" X-IronPort-AV: E=Sophos;i="6.27,123,1787036400"; d="scan'208";a="78738325" Received: from fmviesa007.fm.intel.com ([10.60.135.147]) by fmvoesa110.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Sep 2026 19:13:25 -0700 X-CSE-ConnectionGUID: /USvCuOySUq1wkpMg0Pyyg== X-CSE-MsgGUID: zNkYDPadRaiZG1+YTCqviQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,123,1787036400"; d="scan'208";a="274016072" Received: from lkp-server01.sh.intel.com (HELO 462990a40a85) ([10.239.97.150]) by fmviesa007.fm.intel.com with ESMTP; 25 Sep 2026 19:13:23 -0700 Received: from kbuild by 462990a40a85 with local (Exim 4.98.2) (envelope-from ) id 1xAHuj-00000000LRf-06F1; Sat, 26 Sep 2026 02:13:21 +0000 Date: Sat, 26 Sep 2026 10:13:06 +0800 From: kernel test robot To: steven@liquorix.net Cc: oe-kbuild-all@lists.linux.dev Subject: [zen:7.2/prjc 651/779] kernel/sched/alt_sched.h:334:25: sparse: sparse: incompatible types in comparison expression (different address spaces): Message-ID: <202609261040.f3HIs68E-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: oe-kbuild-all@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: tree: https://github.com/zen-kernel/zen-kernel 7.2/prjc head: 998c50092be8097be2939c7272c5cb9f0d143081 commit: add9dba34cde0a2265b292326f8318bf0fd733ef [651/779] sched/alt: [Sync] 6199f9999a9b sched/cputime: Handle dyntick-idle steal time correctly config: arc-randconfig-r1307-20260926 (https://download.01.org/0day-ci/archive/20260926/202609261040.f3HIs68E-lkp@intel.com/config) compiler: arc-linux-gcc (GCC) 9.5.0 sparse: v0.6.5-rc1 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260926/202609261040.f3HIs68E-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/202609261040.f3HIs68E-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) kernel/sched/build_policy.c: note: in included file (through kernel/sched/sched.h): >> kernel/sched/alt_sched.h:334:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/alt_sched.h:334:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/alt_sched.h:334:25: sparse: struct task_struct * kernel/sched/build_policy.c: note: in included file (through include/linux/uaccess.h, include/linux/sched/task.h, include/linux/sched/signal.h, include/linux/sched/cputime.h): arch/arc/include/asm/uaccess.h:592:33: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected unsigned char *d_char @@ got void [noderef] __user *to @@ arch/arc/include/asm/uaccess.h:592:33: sparse: expected unsigned char *d_char arch/arc/include/asm/uaccess.h:592:33: sparse: got void [noderef] __user *to vim +334 kernel/sched/alt_sched.h 2f7ec82370cbb7 Alfred Chen 2019-08-19 331 e6d6a4e78f98f6 Alfred Chen 2026-01-19 332 static inline bool idle_rq(struct rq *rq) e6d6a4e78f98f6 Alfred Chen 2026-01-19 333 { e6d6a4e78f98f6 Alfred Chen 2026-01-19 @334 return rq->curr == rq->idle && !rq->nr_running && !rq->ttwu_pending; e6d6a4e78f98f6 Alfred Chen 2026-01-19 335 } e6d6a4e78f98f6 Alfred Chen 2026-01-19 336 :::::: The code at line 334 was first introduced by commit :::::: e6d6a4e78f98f667774453eb1b15379f06183e1f sched/alt: [Sync] 1e0a2ba7afb1 sched: Provide idle_rq() helper :::::: TO: Alfred Chen :::::: CC: Alfred Chen -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki