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Message-ID: <202311160521.Gb6dkXjx-lkp@intel.com>
Date:   Thu, 16 Nov 2023 05:54:56 +0800
From:   kernel test robot <lkp@...el.com>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: drivers/perf/thunderx2_pmu.c:556:9: sparse: sparse: incorrect type
 in argument 1 (different address spaces)

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   c42d9eeef8e5ba9292eda36fd8e3c11f35ee065c
commit: f3c0eba287049237b23d1300376768293eb89e69 perf: Add a few assertions
date:   1 year, 2 months ago
config: loongarch-randconfig-r123-20231107 (https://download.01.org/0day-ci/archive/20231116/202311160521.Gb6dkXjx-lkp@intel.com/config)
compiler: loongarch64-linux-gcc (GCC) 13.2.0
reproduce: (https://download.01.org/0day-ci/archive/20231116/202311160521.Gb6dkXjx-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 <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202311160521.Gb6dkXjx-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> drivers/perf/thunderx2_pmu.c:556:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got unsigned int [noderef] __percpu * @@
   drivers/perf/thunderx2_pmu.c:556:9: sparse:     expected void *ptr
   drivers/perf/thunderx2_pmu.c:556:9: sparse:     got unsigned int [noderef] __percpu *
>> drivers/perf/thunderx2_pmu.c:556:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got unsigned int [noderef] __percpu * @@
   drivers/perf/thunderx2_pmu.c:556:9: sparse:     expected void *ptr
   drivers/perf/thunderx2_pmu.c:556:9: sparse:     got unsigned int [noderef] __percpu *
>> drivers/perf/thunderx2_pmu.c:556:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got unsigned int [noderef] __percpu * @@
   drivers/perf/thunderx2_pmu.c:556:9: sparse:     expected void *ptr
   drivers/perf/thunderx2_pmu.c:556:9: sparse:     got unsigned int [noderef] __percpu *
>> drivers/perf/thunderx2_pmu.c:556:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got unsigned int [noderef] __percpu * @@
   drivers/perf/thunderx2_pmu.c:556:9: sparse:     expected void *ptr
   drivers/perf/thunderx2_pmu.c:556:9: sparse:     got unsigned int [noderef] __percpu *
>> drivers/perf/thunderx2_pmu.c:556:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got int [noderef] __percpu * @@
   drivers/perf/thunderx2_pmu.c:556:9: sparse:     expected void *ptr
   drivers/perf/thunderx2_pmu.c:556:9: sparse:     got int [noderef] __percpu *
>> drivers/perf/thunderx2_pmu.c:556:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got int [noderef] __percpu * @@
   drivers/perf/thunderx2_pmu.c:556:9: sparse:     expected void *ptr
   drivers/perf/thunderx2_pmu.c:556:9: sparse:     got int [noderef] __percpu *
>> drivers/perf/thunderx2_pmu.c:556:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got int [noderef] __percpu * @@
   drivers/perf/thunderx2_pmu.c:556:9: sparse:     expected void *ptr
   drivers/perf/thunderx2_pmu.c:556:9: sparse:     got int [noderef] __percpu *
>> drivers/perf/thunderx2_pmu.c:556:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *ptr @@     got int [noderef] __percpu * @@
   drivers/perf/thunderx2_pmu.c:556:9: sparse:     expected void *ptr
   drivers/perf/thunderx2_pmu.c:556:9: sparse:     got int [noderef] __percpu *

vim +556 drivers/perf/thunderx2_pmu.c

69c32972d59388c0 Kulkarni, Ganapatrao             2018-12-06  539  
69c32972d59388c0 Kulkarni, Ganapatrao             2018-12-06  540  /*
69c32972d59388c0 Kulkarni, Ganapatrao             2018-12-06  541   * Make sure the group of events can be scheduled at once
69c32972d59388c0 Kulkarni, Ganapatrao             2018-12-06  542   * on the PMU.
69c32972d59388c0 Kulkarni, Ganapatrao             2018-12-06  543   */
5e2c27e833bb9248 Ganapatrao Prabhakerrao Kulkarni 2019-10-16  544  static bool tx2_uncore_validate_event_group(struct perf_event *event,
5e2c27e833bb9248 Ganapatrao Prabhakerrao Kulkarni 2019-10-16  545  		int max_counters)
69c32972d59388c0 Kulkarni, Ganapatrao             2018-12-06  546  {
69c32972d59388c0 Kulkarni, Ganapatrao             2018-12-06  547  	struct perf_event *sibling, *leader = event->group_leader;
69c32972d59388c0 Kulkarni, Ganapatrao             2018-12-06  548  	int counters = 0;
69c32972d59388c0 Kulkarni, Ganapatrao             2018-12-06  549  
69c32972d59388c0 Kulkarni, Ganapatrao             2018-12-06  550  	if (event->group_leader == event)
69c32972d59388c0 Kulkarni, Ganapatrao             2018-12-06  551  		return true;
69c32972d59388c0 Kulkarni, Ganapatrao             2018-12-06  552  
69c32972d59388c0 Kulkarni, Ganapatrao             2018-12-06  553  	if (!tx2_uncore_validate_event(event->pmu, leader, &counters))
69c32972d59388c0 Kulkarni, Ganapatrao             2018-12-06  554  		return false;
69c32972d59388c0 Kulkarni, Ganapatrao             2018-12-06  555  
69c32972d59388c0 Kulkarni, Ganapatrao             2018-12-06 @556  	for_each_sibling_event(sibling, leader) {
69c32972d59388c0 Kulkarni, Ganapatrao             2018-12-06  557  		if (!tx2_uncore_validate_event(event->pmu, sibling, &counters))
69c32972d59388c0 Kulkarni, Ganapatrao             2018-12-06  558  			return false;
69c32972d59388c0 Kulkarni, Ganapatrao             2018-12-06  559  	}
69c32972d59388c0 Kulkarni, Ganapatrao             2018-12-06  560  
69c32972d59388c0 Kulkarni, Ganapatrao             2018-12-06  561  	if (!tx2_uncore_validate_event(event->pmu, event, &counters))
69c32972d59388c0 Kulkarni, Ganapatrao             2018-12-06  562  		return false;
69c32972d59388c0 Kulkarni, Ganapatrao             2018-12-06  563  
69c32972d59388c0 Kulkarni, Ganapatrao             2018-12-06  564  	/*
69c32972d59388c0 Kulkarni, Ganapatrao             2018-12-06  565  	 * If the group requires more counters than the HW has,
69c32972d59388c0 Kulkarni, Ganapatrao             2018-12-06  566  	 * it cannot ever be scheduled.
69c32972d59388c0 Kulkarni, Ganapatrao             2018-12-06  567  	 */
5e2c27e833bb9248 Ganapatrao Prabhakerrao Kulkarni 2019-10-16  568  	return counters <= max_counters;
69c32972d59388c0 Kulkarni, Ganapatrao             2018-12-06  569  }
69c32972d59388c0 Kulkarni, Ganapatrao             2018-12-06  570  

:::::: The code at line 556 was first introduced by commit
:::::: 69c32972d59388c041268e8206e8eb1acff29b9a drivers/perf: Add Cavium ThunderX2 SoC UNCORE PMU driver

:::::: TO: Kulkarni, Ganapatrao <Ganapatrao.Kulkarni@...ium.com>
:::::: CC: Will Deacon <will.deacon@....com>

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

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