From f0263d2d222e9e25f2587e51a9dc58c6fb2a9352 Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@arm.com>
Date: Fri, 19 Oct 2012 14:03:31 +0100
Subject: [PATCH] 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.
Cc: stable@kernel.org
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
mm/highmem.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/mm/highmem.c b/mm/highmem.c
index d517cd16a6eb9..2a07f97dabf11 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)
{
--
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