diff for duplicates of <20200916061949.GA8599@lst.de>

diff --git a/a/1.txt b/N1/1.txt
index d09b51e..bd4bc87 100644
--- a/a/1.txt
+++ b/N1/1.txt
@@ -13,7 +13,3 @@ All of these still come in throught the wrappers in kernel/dma/mapping.c.
 > ok that I keep the null checking in dma_capable()?
 
 No, the generic dma mapping layer is the right place.
-_______________________________________________
-iommu mailing list
-iommu@lists.linux-foundation.org
-https://lists.linuxfoundation.org/mailman/listinfo/iommu
diff --git a/a/content_digest b/N1/content_digest
index 76b9c7c..69841a3 100644
--- a/a/content_digest
+++ b/N1/content_digest
@@ -9,11 +9,12 @@
  "Subject\0Re: [PATCH] dma-direct: Fix potential NULL pointer dereference\0"
  "Date\0Wed, 16 Sep 2020 08:19:49 +0200\0"
  "To\0Thomas Tai <thomas.tai@oracle.com>\0"
- "Cc\0konrad.wilk@oracle.com"
-  linux-kernel@vger.kernel.org
-  iommu@lists.linux-foundation.org
+ "Cc\0Christoph Hellwig <hch@lst.de>"
+  konrad.wilk@oracle.com
+  m.szyprowski@samsung.com
   robin.murphy@arm.com
- " Christoph Hellwig <hch@lst.de>\0"
+  iommu@lists.linux-foundation.org
+ " linux-kernel@vger.kernel.org\0"
  "\00:1\0"
  "b\0"
  "On Tue, Sep 15, 2020 at 04:46:17PM -0400, Thomas Tai wrote:\n"
@@ -30,10 +31,6 @@
  "> Given that the WARN_ON_ONCE already did the intended warning, would you be \n"
  "> ok that I keep the null checking in dma_capable()?\n"
  "\n"
- "No, the generic dma mapping layer is the right place.\n"
- "_______________________________________________\n"
- "iommu mailing list\n"
- "iommu@lists.linux-foundation.org\n"
- https://lists.linuxfoundation.org/mailman/listinfo/iommu
+ No, the generic dma mapping layer is the right place.
 
-495f2c98c010d78a171dd5d2713cc4b5ca43e25c59f1775edb4f684fa20180c8
+d2eef16e654ee0d709693ef04b162d9aa1b38b75204f298f8ed60049f456f205
