[openeuler:OLK-6.6 3547/3547] drivers/ub/obmm/obmm_addr_check.c:53:14: warning: variable 'user' set but not used

[openeuler:OLK-6.6 3547/3547] drivers/ub/obmm/obmm_addr_check.c:53:14: warning: variable 'user' set but not used

[kernel test robot]

tree:   https://gitee.com/openeuler/kernel.git OLK-6.6
head:   04473ee9ed912a16fff0d8846ad565bbf3d63c77
commit: e777551b49fb8d8dbad14dd3a44c2f9b5c8fa6d4 [3547/3547] obmm: Remove log pringts of physical address and kernelspace virtual address
config: arm64-allmodconfig (https://download.01.org/0day-ci/archive/20251220/202512202127.FExeoFRI-lkp@intel.com/config)
compiler: clang version 19.1.7 (https://github.com/llvm/llvm-project cd708029e0b2869e80abe31ddb175f7c35361f90)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251220/202512202127.FExeoFRI-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/202512202127.FExeoFRI-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/ub/obmm/obmm_addr_check.c:53:14: warning: variable 'user' set but not used [-Wunused-but-set-variable]
      53 |         const char *user;
         |                     ^
   1 warning generated.


vim +/user +53 drivers/ub/obmm/obmm_addr_check.c

67ffb2edb43cde9 Li Ruilin 2025-11-07  49  
67ffb2edb43cde9 Li Ruilin 2025-11-07  50  int free_pa_range(const struct obmm_pa_range *pa_range)
67ffb2edb43cde9 Li Ruilin 2025-11-07  51  {
67ffb2edb43cde9 Li Ruilin 2025-11-07  52  	int ret;
67ffb2edb43cde9 Li Ruilin 2025-11-07 @53  	const char *user;
67ffb2edb43cde9 Li Ruilin 2025-11-07  54  	void *entry;
67ffb2edb43cde9 Li Ruilin 2025-11-07  55  	unsigned long flags;
67ffb2edb43cde9 Li Ruilin 2025-11-07  56  
67ffb2edb43cde9 Li Ruilin 2025-11-07  57  	spin_lock_irqsave(&g_pa_checker.lock, flags);
67ffb2edb43cde9 Li Ruilin 2025-11-07  58  	entry = mtree_erase(&g_pa_checker.pa_ranges, (unsigned long)pa_range->start);
67ffb2edb43cde9 Li Ruilin 2025-11-07  59  	spin_unlock_irqrestore(&g_pa_checker.lock, flags);
67ffb2edb43cde9 Li Ruilin 2025-11-07  60  	if (!entry) {
e777551b49fb8d8 Li Ruilin 2025-12-15  61  		pr_err("PA range to be freed not found.\n");
67ffb2edb43cde9 Li Ruilin 2025-11-07  62  		return -EFAULT;
67ffb2edb43cde9 Li Ruilin 2025-11-07  63  	}
67ffb2edb43cde9 Li Ruilin 2025-11-07  64  	ret = 0;
67ffb2edb43cde9 Li Ruilin 2025-11-07  65  	if (!is_same_pa_range((const struct obmm_pa_range *)entry, pa_range)) {
67ffb2edb43cde9 Li Ruilin 2025-11-07  66  		/* expected to be UNREACHABLE */
e777551b49fb8d8 Li Ruilin 2025-12-15  67  		pr_err("BUG: PA range to be freed does not fully match.\n");
67ffb2edb43cde9 Li Ruilin 2025-11-07  68  		ret = -ENOTRECOVERABLE;
67ffb2edb43cde9 Li Ruilin 2025-11-07  69  	}
0f73521b11e7af9 Li Ruilin 2025-11-07  70  	user = ((struct obmm_pa_range *)entry)->info.user == OBMM_ADDR_USER_DIRECT_IMPORT ?
0f73521b11e7af9 Li Ruilin 2025-11-07  71  		       "import" : "preimport";
67ffb2edb43cde9 Li Ruilin 2025-11-07  72  	kfree(entry);
67ffb2edb43cde9 Li Ruilin 2025-11-07  73  	return ret;
67ffb2edb43cde9 Li Ruilin 2025-11-07  74  }
67ffb2edb43cde9 Li Ruilin 2025-11-07  75  

:::::: The code at line 53 was first introduced by commit
:::::: 67ffb2edb43cde96368000620a63d0f6be11820f obmm: Add address validation and checking

:::::: TO: Li Ruilin <liruilin4@huawei.com>
:::::: CC: Li Ruilin <liruilin4@huawei.com>

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