linux-kernel - [linux-next:master 4470/4908] drivers/iommu/iommu.c:1857:5: sparse: sparse: symbol '__iommu_map' was not declared. Should it be static?

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Date:   Thu, 17 Oct 2019 02:16:16 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Tom Murphy <murphyt7@....ie>
Cc:     kbuild-all@...ts.01.org, Joerg Roedel <jroedel@...e.de>,
        Robin Murphy <robin.murphy@....com>,
        Christoph Hellwig <hch@....de>,
        iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org
Subject: [linux-next:master 4470/4908] drivers/iommu/iommu.c:1857:5: sparse:
 sparse: symbol '__iommu_map' was not declared. Should it be static?

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   78662bffde37ccbb66ac3311fa709d8960435e98
commit: 781ca2de89bae1b1d2c96df9ef33e9a324415995 [4470/4908] iommu: Add gfp parameter to iommu_ops::map
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.1-dirty
        git checkout 781ca2de89bae1b1d2c96df9ef33e9a324415995
        make ARCH=x86_64 allmodconfig
        make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@...el.com>


sparse warnings: (new ones prefixed by >>)

   drivers/iommu/iommu.c:292:5: sparse: sparse: symbol 'iommu_insert_resv_region' was not declared. Should it be static?

Please review and possibly fold the followup patch.

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