linux-kernel - [PATCH 5/5] mm, hmm: mark hmm_devmem_{add, add_resource} EXPORT_SYMBOL

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Message-ID: <152694214044.5484.1081005408496303826.stgit@dwillia2-desk3.amr.corp.intel.com>
Date:   Mon, 21 May 2018 15:35:40 -0700
From:   Dan Williams <dan.j.williams@...el.com>
To:     akpm@...ux-foundation.org
Cc:     Christoph Hellwig <hch@....de>,
        Jérôme Glisse <jglisse@...hat.com>,
        Logan Gunthorpe <logang@...tatee.com>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 5/5] mm, hmm: mark hmm_devmem_{add,
 add_resource} EXPORT_SYMBOL_GPL

The routines hmm_devmem_add(), and hmm_devmem_add_resource() are small
wrappers around devm_memremap_pages(). The devm_memremap_pages()
interface is a subset of the hmm functionality which has more and deeper
ties into the kernel memory management implementation. It was an
oversight that these symbols were not marked EXPORT_SYMBOL_GPL from the
outset due to how they originally copied (and now reuse)
devm_memremap_pages().

Cc: Christoph Hellwig <hch@....de>
Cc: "Jérôme Glisse" <jglisse@...hat.com>
Cc: Logan Gunthorpe <logang@...tatee.com>
Signed-off-by: Dan Williams <dan.j.williams@...el.com>
---
 mm/hmm.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/hmm.c b/mm/hmm.c
index a4162406067c..d9aef1266ed6 100644
--- a/mm/hmm.c
+++ b/mm/hmm.c
@@ -1072,7 +1072,7 @@ struct hmm_devmem *hmm_devmem_add(const struct hmm_devmem_ops *ops,
 
 	return devmem;
 }
-EXPORT_SYMBOL(hmm_devmem_add);
+EXPORT_SYMBOL_GPL(hmm_devmem_add);
 
 struct hmm_devmem *hmm_devmem_add_resource(const struct hmm_devmem_ops *ops,
 					   struct device *device,
@@ -1131,7 +1131,7 @@ struct hmm_devmem *hmm_devmem_add_resource(const struct hmm_devmem_ops *ops,
 
 	return devmem;
 }
-EXPORT_SYMBOL(hmm_devmem_add_resource);
+EXPORT_SYMBOL_GPL(hmm_devmem_add_resource);
 
 /*
  * A device driver that wants to handle multiple devices memory through a