From: kbuild test robot <fengguang.wu@intel.com>
To: Christoph Lameter <cl@linux-foundation.org>
Cc: Linux Memory Management List <linux-mm@kvack.org>,
Andrew Morton <akpm@linux-foundation.org>,
Johannes Weiner <hannes@cmpxchg.org>,
kbuild-all@01.org
Subject: [mmotm:master 432/471] kernel/sched/rt.c:1451:39: sparse: incorrect type in initializer (different address spaces)
Date: Sun, 09 Mar 2014 05:48:17 +0800 [thread overview]
Message-ID: <531b9021.6iBITNWPrSqc6ad1%fengguang.wu@intel.com> (raw)
tree: git://git.cmpxchg.org/linux-mmotm.git master
head: f6bf2766c2091cbf8ffcc2c5009875dbdb678282
commit: 4a46dca81e38ce94eb5c2ba6f35d6e4bf4c86664 [432/471] scheduler: replace __get_cpu_var with this_cpu_ptr
reproduce: make C=1 CF=-D__CHECK_ENDIAN__
sparse warnings: (new ones prefixed by >>)
>> kernel/sched/rt.c:1451:39: sparse: incorrect type in initializer (different address spaces)
kernel/sched/rt.c:1451:39: expected void const [noderef] <asn:3>*__vpp_verify
kernel/sched/rt.c:1451:39: got struct cpumask *<noident>
kernel/sched/rt.c:1484:9: sparse: incompatible types in comparison expression (different address spaces)
vim +1451 kernel/sched/rt.c
1435 if (!has_pushable_tasks(rq))
1436 return NULL;
1437
1438 plist_for_each_entry(p, head, pushable_tasks) {
1439 if (pick_rt_task(rq, p, cpu))
1440 return p;
1441 }
1442
1443 return NULL;
1444 }
1445
1446 static DEFINE_PER_CPU(cpumask_var_t, local_cpu_mask);
1447
1448 static int find_lowest_rq(struct task_struct *task)
1449 {
1450 struct sched_domain *sd;
> 1451 struct cpumask *lowest_mask = this_cpu_ptr(local_cpu_mask);
1452 int this_cpu = smp_processor_id();
1453 int cpu = task_cpu(task);
1454
1455 /* Make sure the mask is initialized first */
1456 if (unlikely(!lowest_mask))
1457 return -1;
1458
1459 if (task->nr_cpus_allowed == 1)
---
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reply other threads:[~2014-03-08 21:48 UTC|newest]
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