Re: [PATCH v2] iommu/amd: Add support to indicate whether DMA remap support is enabled

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

Hi Mario,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on joro-iommu/next]
[also build test ERROR on v5.17 next-20220318]
[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/Mario-Limonciello/iommu-amd-Add-support-to-indicate-whether-DMA-remap-support-is-enabled/20220319-063131
base:   https://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git next
config: x86_64-defconfig (https://download.01.org/0day-ci/archive/20220321/202203211032.FSaAOkQt-lkp@intel.com/config)
compiler: gcc-9 (Ubuntu 9.4.0-1ubuntu1~20.04) 9.4.0
reproduce (this is a W=1 build):
        # https://github.com/0day-ci/linux/commit/105690537e561d997e376617aa6a7d6d7b74a6a6
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Mario-Limonciello/iommu-amd-Add-support-to-indicate-whether-DMA-remap-support-is-enabled/20220319-063131
        git checkout 105690537e561d997e376617aa6a7d6d7b74a6a6
        # save the config file to linux build tree
        mkdir build_dir
        make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash

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

All errors (new ones prefixed by >>):

   drivers/iommu/amd/iommu.c: In function 'amd_iommu_capable':
>> drivers/iommu/amd/iommu.c:2165:7: error: 'IOMMU_CAP_PRE_BOOT_PROTECTION' undeclared (first use in this function)
    2165 |  case IOMMU_CAP_PRE_BOOT_PROTECTION:
         |       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/iommu/amd/iommu.c:2165:7: note: each undeclared identifier is reported only once for each function it appears in


vim +/IOMMU_CAP_PRE_BOOT_PROTECTION +2165 drivers/iommu/amd/iommu.c

  2155	
  2156	static bool amd_iommu_capable(enum iommu_cap cap)
  2157	{
  2158		switch (cap) {
  2159		case IOMMU_CAP_CACHE_COHERENCY:
  2160			return true;
  2161		case IOMMU_CAP_INTR_REMAP:
  2162			return (irq_remapping_enabled == 1);
  2163		case IOMMU_CAP_NOEXEC:
  2164			return false;
> 2165		case IOMMU_CAP_PRE_BOOT_PROTECTION:
  2166			return amdr_ivrs_remap_support;
  2167		default:
  2168			break;
  2169		}
  2170	
  2171		return false;
  2172	}
  2173	

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