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: [email protected] Signed-off-by: Will Deacon <[email protected]> Signed-off-by: Rusty Russell <[email protected]>
josf · Oct 22, 2012 · f0263d2 · f0263d2
1 parent dd8e8c4
commit f0263d2
Showing 1 changed file with 1 addition and 0 deletions.
diff --git 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)
 {