[PATCH v3 04/10] iommu/dma: Add a helper function to reserve RMRs for IOMMU drivers

[kernel test robot]

Hi Shameer,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on pm/linux-next]
[also build test WARNING on arm/for-next soc/for-next arm64/for-next/core linus/master v5.12-rc8]
[cannot apply to iommu/next xlnx/master next-20210420]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Shameer-Kolothum/ACPI-IORT-Support-for-IORT-RMR-node/20210420-173125
base:   https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git linux-next
config: m68k-randconfig-m031-20210420 (attached as .config)
compiler: m68k-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/0day-ci/linux/commit/2501962e423895e2e4f126ff5998b226f4803186
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Shameer-Kolothum/ACPI-IORT-Support-for-IORT-RMR-node/20210420-173125
        git checkout 2501962e423895e2e4f126ff5998b226f4803186
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross W=1 ARCH=m68k 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp at intel.com>

All warnings (new ones prefixed by >>):

   In file included from drivers/iommu/rockchip-iommu.c:13:
>> include/linux/dma-iommu.h:94:71: warning: 'struct iommu_rmr' declared inside parameter list will not be visible outside of this definition or declaration
      94 | static void iommu_dma_get_rmr_resv_regions(struct device *dev, struct iommu_rmr *rmr,
         |                                                                       ^~~~~~~~~
   include/linux/dma-iommu.h:100:1: error: expected identifier or '(' before '{' token
     100 | {
         | ^
   In file included from drivers/iommu/rockchip-iommu.c:13:
   include/linux/dma-iommu.h:94:13: warning: 'iommu_dma_get_rmr_resv_regions' defined but not used [-Wunused-function]
      94 | static void iommu_dma_get_rmr_resv_regions(struct device *dev, struct iommu_rmr *rmr,
         |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for ADI_AXI_ADC
   Depends on IIO && HAS_IOMEM && OF
   Selected by
   - AD9467 && IIO && SPI


vim +94 include/linux/dma-iommu.h

    93	
  > 94	static void iommu_dma_get_rmr_resv_regions(struct device *dev, struct iommu_rmr *rmr,
    95						   struct list_head *list)
    96	{
    97	}
    98	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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