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authorWill Deacon <will.deacon@arm.com>2012-10-19 14:03:31 +0100
committerRusty Russell <rusty@rustcorp.com.au>2012-10-22 18:19:24 +1030
commitf0263d2d222e9e25f2587e51a9dc58c6fb2a9352 (patch)
tree153ae072b6ccc3079ecccadad64b5d5dd81a70cc
parentdd8e8c4a2c902d8350b702e7bc7c2799e5e7e331 (diff)
downloadop-kernel-dev-f0263d2d222e9e25f2587e51a9dc58c6fb2a9352.zip
op-kernel-dev-f0263d2d222e9e25f2587e51a9dc58c6fb2a9352.tar.gz
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>
-rw-r--r--mm/highmem.c1
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)
{
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