x86: Explicitly include required header files.

After an experimental cleanup of <linux/percpu.h>, these files were
exposed as invoking kmalloc() without including <linux/slab.h>.

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 2 insertions, 0 deletions

diff --git a/arch/x86/kernel/test_nx.c b/arch/x86/kernel/test_nx.c
index 10b8a6f69f84..787a5e499dd1 100644
--- a/arch/x86/kernel/test_nx.c
+++ b/arch/x86/kernel/test_nx.c
@@ -11,6 +11,8 @@
  */
 #include <linux/module.h>
 #include <linux/sort.h>
+#include <linux/slab.h>
+
 #include <asm/uaccess.h>
 #include <asm/asm.h>