Hi Shameer,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on iommu/next]
[also build test WARNING on pm/linux-next arm64/for-next/core linus/master v5.13-rc3 next-20210524]
[cannot apply to xlnx/master arm/for-next soc/for-next]
[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/20210524-190633
base:   https://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git next
config: x86_64-randconfig-a013-20210524 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 93d1e5822ed64abd777eb94ea9899e96c4c39fbe)
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
        # install x86_64 cross compiling tool for clang build
        # apt-get install binutils-x86-64-linux-gnu
        # https://github.com/0day-ci/linux/commit/2c046e03beb7d64e0f7182d01a7dc63dce79c882
        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/20210524-190633
        git checkout 2c046e03beb7d64e0f7182d01a7dc63dce79c882
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <redacted>

All warnings (new ones prefixed by >>):

   In file included from drivers/vfio/vfio_iommu_type1.c:41:

quoted

include/linux/dma-iommu.h:90:5: warning: no previous prototype for function 'iommu_dma_get_rmrs' [-Wmissing-prototypes]

   int iommu_dma_get_rmrs(struct fwnode_handle *iommu, struct list_head *list)
       ^
   include/linux/dma-iommu.h:90:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   int iommu_dma_get_rmrs(struct fwnode_handle *iommu, struct list_head *list)
   ^
   static 

quoted

include/linux/dma-iommu.h:95:6: warning: no previous prototype for function 'iommu_dma_put_rmrs' [-Wmissing-prototypes]

   void iommu_dma_put_rmrs(struct fwnode_handle *iommu, struct list_head *list)
        ^
   include/linux/dma-iommu.h:95:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void iommu_dma_put_rmrs(struct fwnode_handle *iommu, struct list_head *list)
   ^
   static 
   2 warnings generated.


vim +/iommu_dma_get_rmrs +90 include/linux/dma-iommu.h

    89	
  > 90	int iommu_dma_get_rmrs(struct fwnode_handle *iommu, struct list_head *list)
    91	{
    92		return -ENODEV;
    93	}
    94	
  > 95	void iommu_dma_put_rmrs(struct fwnode_handle *iommu, struct list_head *list)
    96	{
    97	}
    98	

---
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