[PATCH v3 2/3] iommu/io-pgtable-arm-v7s: Remove split on unmap behavior

[kernel test robot]

Hi Jason,

kernel test robot noticed the following build warnings:

[auto build test WARNING on 8e929cb546ee42c9a61d24fae60605e9e3192354]

url:    https://github.com/intel-lab-lkp/linux/commits/Jason-Gunthorpe/iommu-io-pgtable-arm-Remove-split-on-unmap-behavior/20241106-021511
base:   8e929cb546ee42c9a61d24fae60605e9e3192354
patch link:    https://lore.kernel.org/r/2-v3-b3a5b5937f56%2B7bb-arm_no_split_jgg%40nvidia.com
patch subject: [PATCH v3 2/3] iommu/io-pgtable-arm-v7s: Remove split on unmap behavior
config: arm-randconfig-004-20241106 (https://download.01.org/0day-ci/archive/20241106/202411061634.3EtgZij8-lkp@intel.com/config)
compiler: clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241106/202411061634.3EtgZij8-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 at intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202411061634.3EtgZij8-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/iommu/io-pgtable-arm-v7s.c:823:18: warning: variable 'loopnr' set but not used [-Wunused-but-set-variable]
     823 |         unsigned int i, loopnr = 0;
         |                         ^
   1 warning generated.

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for GET_FREE_REGION
   Depends on [n]: SPARSEMEM [=n]
   Selected by [y]:
   - RESOURCE_KUNIT_TEST [=y] && RUNTIME_TESTING_MENU [=y] && KUNIT [=y]


vim +/loopnr +823 drivers/iommu/io-pgtable-arm-v7s.c

e5fc9753b1a831 Robin Murphy    2016-01-26  810  
e5fc9753b1a831 Robin Murphy    2016-01-26  811  static int __init arm_v7s_do_selftests(void)
e5fc9753b1a831 Robin Murphy    2016-01-26  812  {
e5fc9753b1a831 Robin Murphy    2016-01-26  813  	struct io_pgtable_ops *ops;
e5fc9753b1a831 Robin Murphy    2016-01-26  814  	struct io_pgtable_cfg cfg = {
e5fc9753b1a831 Robin Murphy    2016-01-26  815  		.tlb = &dummy_tlb_ops,
e5fc9753b1a831 Robin Murphy    2016-01-26  816  		.oas = 32,
e5fc9753b1a831 Robin Murphy    2016-01-26  817  		.ias = 32,
4f41845b340783 Will Deacon     2019-06-25  818  		.coherent_walk = true,
4f41845b340783 Will Deacon     2019-06-25  819  		.quirks = IO_PGTABLE_QUIRK_ARM_NS,
e5fc9753b1a831 Robin Murphy    2016-01-26  820  		.pgsize_bitmap = SZ_4K | SZ_64K | SZ_1M | SZ_16M,
e5fc9753b1a831 Robin Murphy    2016-01-26  821  	};
76b8c2705cdd26 Jason Gunthorpe 2024-11-05  822  	unsigned int iova, size;
e5fc9753b1a831 Robin Murphy    2016-01-26 @823  	unsigned int i, loopnr = 0;

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