linux-kernel - [PATCH] lib: fix build failure in CONFIG_DEBUG

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Message-Id: <40d63adb6058b1fbb4082ca6f15225cb6e76bd62.1544429175.git.christophe.leroy@c-s.fr>
Date:   Mon, 10 Dec 2018 08:08:28 +0000 (UTC)
From:   Christophe Leroy <christophe.leroy@....fr>
To:     Andrew Morton <akpm@...ux-foundation.org>,
        Colin Ian King <colin.king@...onical.com>,
        Kees Cook <keescook@...omium.org>
Cc:     linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Subject: [PATCH] lib: fix build failure in CONFIG_DEBUG_VIRTUAL test

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@...r.kernel.org
Signed-off-by: Christophe Leroy <christophe.leroy@....fr>
---
 lib/test_debug_virtual.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/test_debug_virtual.c b/lib/test_debug_virtual.c
index d5a06addeb27..bf864c73e462 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
-- 
2.13.3