[PATCH] powerpc: remove the __kernel_io_end export

[Christoph Hellwig]

This export was added in this merge window, but without any actual
user, or justification for a modular user.

Fixes: a35a3c6f6065 ("powerpc/mm/hash64: Add a variable to track the end of IO mapping")
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
 arch/powerpc/mm/pgtable_64.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/powerpc/mm/pgtable_64.c b/arch/powerpc/mm/pgtable_64.c
index 72f58c076e26..1fddc81cc682 100644
--- a/arch/powerpc/mm/pgtable_64.c
+++ b/arch/powerpc/mm/pgtable_64.c
@@ -96,7 +96,6 @@ unsigned long __vmalloc_end;
 EXPORT_SYMBOL(__vmalloc_end);
 unsigned long __kernel_io_start;
 EXPORT_SYMBOL(__kernel_io_start);
-unsigned long __kernel_io_end;
 EXPORT_SYMBOL(__kernel_io_end);
 struct page *vmemmap;
 EXPORT_SYMBOL(vmemmap);
-- 
2.20.1