4.20-stable review patch. If anyone has any objections, please let me know.
------------------
From: Christophe Leroy <christophe.leroy@xxxxxx>
commit 10fdf838e5f540beca466e9d1325999c072e5d3f upstream.
On several arches, virt_to_phys() is in io.h
Build fails without it:
CC lib/test_debug_virtual.o
lib/test_debug_virtual.c: In function 'test_debug_virtual_init':
lib/test_debug_virtual.c:26:7: error: implicit declaration of function 'virt_to_phys' [-Werror=implicit-function-declaration]
pa = virt_to_phys(va);
^
Fixes: e4dace361552 ("lib: add test module for CONFIG_DEBUG_VIRTUAL")
CC: stable@xxxxxxxxxxxxxxx
Signed-off-by: Christophe Leroy <christophe.leroy@xxxxxx>
Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx>
Signed-off-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
lib/test_debug_virtual.c | 1 +
1 file changed, 1 insertion(+)
--- a/lib/test_debug_virtual.c
+++ b/lib/test_debug_virtual.c
@@ -5,6 +5,7 @@
#include <linux/vmalloc.h>
#include <linux/slab.h>
#include <linux/sizes.h>
+#include <linux/io.h>
#include <asm/page.h>
#ifdef CONFIG_MIPS
