[aegl:rdt-aet-v5 28/29] arch/x86/kernel/cpu/resctrl/intel_aet.c:288:63: sparse: sparse: incorrect type in initializer (different address spaces)

kernel test robot <[email protected]> Wed, 21 May 2025 15:55:40 +0800
Newsgroups org.kernel.vger.linux-ia64,dev.linux.lists.oe-kbuild-all
Message-ID <[email protected]>
tree:   https://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux.git rdt-aet-v5
head:   a0273c92f4de70daf85926f88e122a66de5bf943
commit: 113e20da9990a521c6106188f9c662fc9f745bb3 [28/29] x86/resctrl: Add info/PERF_PKG_MON/status file
config: x86_64-randconfig-121-20250521 (https://download.01.org/0day-ci/archive/20250521/[email protected]/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250521/[email protected]/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 <[email protected]>
| Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/

sparse warnings: (new ones prefixed by >>)
>> arch/x86/kernel/cpu/resctrl/intel_aet.c:288:63: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected void *[noderef] __iomem info @@     got void [noderef] __iomem * @@
   arch/x86/kernel/cpu/resctrl/intel_aet.c:288:63: sparse:     expected void *[noderef] __iomem info
   arch/x86/kernel/cpu/resctrl/intel_aet.c:288:63: sparse:     got void [noderef] __iomem *
>> arch/x86/kernel/cpu/resctrl/intel_aet.c:292:31: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __iomem *addr @@     got void * @@
   arch/x86/kernel/cpu/resctrl/intel_aet.c:292:31: sparse:     expected void const volatile [noderef] __iomem *addr
   arch/x86/kernel/cpu/resctrl/intel_aet.c:292:31: sparse:     got void *
   arch/x86/kernel/cpu/resctrl/intel_aet.c:294:31: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __iomem *addr @@     got void * @@
   arch/x86/kernel/cpu/resctrl/intel_aet.c:294:31: sparse:     expected void const volatile [noderef] __iomem *addr
   arch/x86/kernel/cpu/resctrl/intel_aet.c:294:31: sparse:     got void *
   arch/x86/kernel/cpu/resctrl/intel_aet.c:296:31: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const volatile [noderef] __iomem *addr @@     got void * @@
   arch/x86/kernel/cpu/resctrl/intel_aet.c:296:31: sparse:     expected void const volatile [noderef] __iomem *addr
   arch/x86/kernel/cpu/resctrl/intel_aet.c:296:31: sparse:     got void *
   arch/x86/kernel/cpu/resctrl/intel_aet.c:292:26: sparse: sparse: dereference of noderef expression
   arch/x86/kernel/cpu/resctrl/intel_aet.c:292:26: sparse: sparse: dereference of noderef expression
   arch/x86/kernel/cpu/resctrl/intel_aet.c:294:26: sparse: sparse: dereference of noderef expression
   arch/x86/kernel/cpu/resctrl/intel_aet.c:294:26: sparse: sparse: dereference of noderef expression
   arch/x86/kernel/cpu/resctrl/intel_aet.c:296:26: sparse: sparse: dereference of noderef expression
   arch/x86/kernel/cpu/resctrl/intel_aet.c:296:26: sparse: sparse: dereference of noderef expression

vim +288 arch/x86/kernel/cpu/resctrl/intel_aet.c

   285	
   286	static void show_debug(struct seq_file *s, struct event_group *e, int pkg, int instance)
   287	{
 > 288		void *info __iomem = e->pkginfo[pkg]->addrs[instance] + e->mmio_size;
   289	
   290		/* Information registers are the last three qwords in MMIO space */
   291		seq_printf(s, "%s %d:%d agg_data_loss_count = %llu\n", e->name, pkg, instance,
 > 292			   readq(info - 24));
   293		seq_printf(s, "%s %d:%d agg_data_loss_timestamp = %llu\n", e->name, pkg, instance,
   294			   readq(info - 16));
   295		seq_printf(s, "%s %d:%d last_update_timestamp = %llu\n", e->name, pkg, instance,
   296			   readq(info - 8));
   297	}
   298	

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