linux-kernel - [PATCH v2 1/3] mm: highmem: export kmap_to

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Message-Id: <1350651813-8694-1-git-send-email-will.deacon@arm.com>
Date:	Fri, 19 Oct 2012 14:03:31 +0100
From:	Will Deacon <will.deacon@....com>
To:	linux-kernel@...r.kernel.org
Cc:	rusty@...tcorp.com.au, levinsasha928@...il.com,
	Marc.Zyngier@....com, virtualization@...ts.linux-foundation.org,
	akpm@...ux-foundation.org, ericvh@...il.com,
	Will Deacon <will.deacon@....com>
Subject: [PATCH v2 1/3] mm: highmem: export kmap_to_page for modules

Some virtio device drivers (9p) need to translate high virtual addresses
to physical addresses, which are inserted into the virtqueue for
processing by userspace.

This patch exports the kmap_to_page symbol, so that the affected drivers
can be compiled as modules.

Signed-off-by: Will Deacon <will.deacon@....com>
---
 mm/highmem.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/mm/highmem.c b/mm/highmem.c
index d517cd1..2a07f97 100644
--- a/mm/highmem.c
+++ b/mm/highmem.c
@@ -105,6 +105,7 @@ struct page *kmap_to_page(void *vaddr)
 
 	return virt_to_page(addr);
 }
+EXPORT_SYMBOL(kmap_to_page);
 
 static void flush_all_zero_pkmaps(void)
 {
-- 
1.7.4.1

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