From: Christophe Leroy <christophe.leroy@c-s.fr>
Date: Mon, 10 Dec 2018 08:08:28 +0000 (+0000)
Subject: lib: fix build failure in CONFIG_DEBUG_VIRTUAL test
X-Git-Tag: Ubuntu-4.15.0-61.68~3853
X-Git-Url: https://git.proxmox.com/?p=mirror_ubuntu-bionic-kernel.git;a=commitdiff_plain;h=eb24644e98751dfa4fc2b7486a912978e8dcd0be

lib: fix build failure in CONFIG_DEBUG_VIRTUAL test

BugLink: https://bugs.launchpad.net/bugs/1837477

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@vger.kernel.org
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Andrea Righi <andrea.righi@canonical.com>
Signed-off-by: Khalid Elmously <khalid.elmously@canonical.com>
---

diff --git a/lib/test_debug_virtual.c b/lib/test_debug_virtual.c
index b9cdeecc19dc..777b491df25d 100644
--- 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