Re: [PATCH v2 1/3] arm-smmu: move MSI_IOVA macro definitions

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

Hi Shyam,

kernel test robot noticed the following build errors:

[auto build test ERROR on robh/for-next]
[also build test ERROR on linus/master v6.15-rc1 next-20250411]
[cannot apply to 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#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Shyam-Saini/arm-smmu-move-MSI_IOVA-macro-definitions/20250411-070014
base:   https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next
patch link:    https://lore.kernel.org/r/20250410225030.2528385-2-shyamsaini%40linux.microsoft.com
patch subject: [PATCH v2 1/3] arm-smmu: move MSI_IOVA macro definitions
config: arc-randconfig-001-20250412 (https://download.01.org/0day-ci/archive/20250412/202504120700.1UwOUvMR-lkp@intel.com/config)
compiler: arc-linux-gcc (GCC) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250412/202504120700.1UwOUvMR-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/202504120700.1UwOUvMR-lkp@intel.com/

All errors (new ones prefixed by >>):

   drivers/iommu/arm/arm-smmu/arm-smmu.c: In function 'arm_smmu_get_resv_regions':
   drivers/iommu/arm/arm-smmu/arm-smmu.c:1597:42: error: 'MSI_IOVA_BASE' undeclared (first use in this function); did you mean 'PCI_IO_BASE'?
    1597 |         region = iommu_alloc_resv_region(MSI_IOVA_BASE, MSI_IOVA_LENGTH,
         |                                          ^~~~~~~~~~~~~
         |                                          PCI_IO_BASE
   drivers/iommu/arm/arm-smmu/arm-smmu.c:1597:42: note: each undeclared identifier is reported only once for each function it appears in
>> drivers/iommu/arm/arm-smmu/arm-smmu.c:1597:57: error: 'MSI_IOVA_LENGTH' undeclared (first use in this function)
    1597 |         region = iommu_alloc_resv_region(MSI_IOVA_BASE, MSI_IOVA_LENGTH,
         |                                                         ^~~~~~~~~~~~~~~


vim +/MSI_IOVA_LENGTH +1597 drivers/iommu/arm/arm-smmu/arm-smmu.c

021bb8420d44cf5 drivers/iommu/arm-smmu.c              Robin Murphy 2016-09-14  1590  
f3ebee80b3131d4 drivers/iommu/arm-smmu.c              Eric Auger   2017-01-19  1591  static void arm_smmu_get_resv_regions(struct device *dev,
f3ebee80b3131d4 drivers/iommu/arm-smmu.c              Eric Auger   2017-01-19  1592  				      struct list_head *head)
f3ebee80b3131d4 drivers/iommu/arm-smmu.c              Eric Auger   2017-01-19  1593  {
f3ebee80b3131d4 drivers/iommu/arm-smmu.c              Eric Auger   2017-01-19  1594  	struct iommu_resv_region *region;
f3ebee80b3131d4 drivers/iommu/arm-smmu.c              Eric Auger   2017-01-19  1595  	int prot = IOMMU_WRITE | IOMMU_NOEXEC | IOMMU_MMIO;
f3ebee80b3131d4 drivers/iommu/arm-smmu.c              Eric Auger   2017-01-19  1596  
f3ebee80b3131d4 drivers/iommu/arm-smmu.c              Eric Auger   2017-01-19 @1597  	region = iommu_alloc_resv_region(MSI_IOVA_BASE, MSI_IOVA_LENGTH,
0251d0107cfb0bb drivers/iommu/arm/arm-smmu/arm-smmu.c Lu Baolu     2022-10-19  1598  					 prot, IOMMU_RESV_SW_MSI, GFP_KERNEL);
f3ebee80b3131d4 drivers/iommu/arm-smmu.c              Eric Auger   2017-01-19  1599  	if (!region)
f3ebee80b3131d4 drivers/iommu/arm-smmu.c              Eric Auger   2017-01-19  1600  		return;
f3ebee80b3131d4 drivers/iommu/arm-smmu.c              Eric Auger   2017-01-19  1601  
f3ebee80b3131d4 drivers/iommu/arm-smmu.c              Eric Auger   2017-01-19  1602  	list_add_tail(&region->list, head);
273df9635385b21 drivers/iommu/arm-smmu.c              Robin Murphy 2017-03-16  1603  
273df9635385b21 drivers/iommu/arm-smmu.c              Robin Murphy 2017-03-16  1604  	iommu_dma_get_resv_regions(dev, head);
f3ebee80b3131d4 drivers/iommu/arm-smmu.c              Eric Auger   2017-01-19  1605  }
f3ebee80b3131d4 drivers/iommu/arm-smmu.c              Eric Auger   2017-01-19  1606  

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