[morse:mpam/snapshot/v6.5-rc1 138/150] fs/resctrl/rdtgroup.c:850:24: error: implicit declaration of function 'iommu_get_group_kset'; did you mean 'iommu_group_get'?

[kernel test robot <lkp@intel.com>]

Hi James,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/morse/linux.git mpam/snapshot/v6.5-rc1
head:   b35e256b516ef563cb57da2628dc19bcd600e35f
commit: 9e9af35cd8e4b32e9ccba2fa49c1ce600b3066b8 [138/150] fs/resctrl: Add support for assigning iommu_groups to resctrl groups
config: i386-buildonly-randconfig-005-20230826 (https://download.01.org/0day-ci/archive/20230826/202308260737.qAn48aMP-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce: (https://download.01.org/0day-ci/archive/20230826/202308260737.qAn48aMP-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202308260737.qAn48aMP-lkp@intel.com/

All error/warnings (new ones prefixed by >>):

   fs/resctrl/rdtgroup.c: In function 'show_rdt_iommu':
>> fs/resctrl/rdtgroup.c:850:24: error: implicit declaration of function 'iommu_get_group_kset'; did you mean 'iommu_group_get'? [-Werror=implicit-function-declaration]
     850 |         iommu_groups = iommu_get_group_kset();
         |                        ^~~~~~~~~~~~~~~~~~~~
         |                        iommu_group_get
>> fs/resctrl/rdtgroup.c:850:22: warning: assignment to 'struct kset *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
     850 |         iommu_groups = iommu_get_group_kset();
         |                      ^
   cc1: some warnings being treated as errors


vim +850 fs/resctrl/rdtgroup.c

   839	
   840	static void show_rdt_iommu(struct rdtgroup *r, struct seq_file *s)
   841	{
   842		struct kset *iommu_groups;
   843		struct iommu_group *group;
   844		struct kobject *group_kobj = NULL;
   845	
   846		if (!IS_ENABLED(CONFIG_RESCTRL_IOMMU) ||
   847		    !static_branch_unlikely(&resctrl_abi_playground))
   848			return;
   849	
 > 850		iommu_groups = iommu_get_group_kset();
   851	
   852		while ((group_kobj = kset_get_next_obj(iommu_groups, group_kobj))) {
   853	
   854			/* iommu_group_get_from_kobj() wants to drop a reference */
   855			kobject_get(group_kobj);
   856	
   857			group = iommu_group_get_from_kobj(group_kobj);
   858			if (!group)
   859				continue;
   860	
   861			if (iommu_matches_rdtgroup(group, r))
   862				seq_printf(s, "iommu_group:%s\n", group_kobj->name);
   863		}
   864	
   865		kset_put(iommu_groups);
   866	}
   867	

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