From: Jens Wiklander <jens.wiklander@linaro.org>
Date: Mon, 22 Aug 2022 05:43:35 +0000 (+0200)
Subject: tee: fix compiler warning in tee_shm_register()
X-Git-Tag: v5.15.73~398
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=e2ec1064a47dea9ea8e405c03307ad438ead2095;p=platform%2Fkernel%2Flinux-rpi.git

tee: fix compiler warning in tee_shm_register()

[ Upstream commit eccd7439709810127563e7e3e49b8b44c7b2791d ]

Include <linux/uaccess.h> to avoid the warning:
   drivers/tee/tee_shm.c: In function 'tee_shm_register':
>> drivers/tee/tee_shm.c:242:14: error: implicit declaration of function 'access_ok' [-Werror=implicit-function-declaration]
     242 |         if (!access_ok((void __user *)addr, length))
         |              ^~~~~~~~~
   cc1: some warnings being treated as errors

Fixes: 573ae4f13f63 ("tee: add overflow check in register_shm_helper()")
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/drivers/tee/tee_shm.c b/drivers/tee/tee_shm.c
index 6e662fb131d5..bd96ebb82c8e 100644
--- a/drivers/tee/tee_shm.c
+++ b/drivers/tee/tee_shm.c
@@ -9,6 +9,7 @@
 #include <linux/sched.h>
 #include <linux/slab.h>
 #include <linux/tee_drv.h>
+#include <linux/uaccess.h>
 #include <linux/uio.h>
 #include "tee_private.h"