From: Amit Pundir <amit.pundir@linaro.org>
Date: Wed, 12 Oct 2016 14:48:18 +0000 (+0530)
Subject: mm: Fix build for hardened usercopy
X-Git-Tag: firefly_0821_release~176^2~117
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=26700159745df7db2bc75e8032d2a36913c37880;p=firefly-linux-kernel-4.4.55.git

mm: Fix build for hardened usercopy

Include  missing linux/sched.h to fix following build failure for
ARCH=i386+allmodconfig build.

  CC      mm/usercopy.o
mm/usercopy.c: In function ‘check_stack_object’:
mm/usercopy.c:40:29: error: implicit declaration of function ‘task_stack_page’ [-Werror=implicit-function-declaration]
  const void * const stack = task_stack_page(current);
                             ^
scripts/Makefile.build:258: recipe for target 'mm/usercopy.o' failed

Fixes: 799abb4f9534 ("mm: Hardened usercopy")
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
---

diff --git a/mm/usercopy.c b/mm/usercopy.c
index 089328f2b920..b34996a3860b 100644
--- a/mm/usercopy.c
+++ b/mm/usercopy.c
@@ -15,6 +15,7 @@
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
 #include <linux/mm.h>
+#include <linux/sched.h>
 #include <linux/slab.h>
 #include <asm/sections.h>