trusty: use #if IS_ENABLED() instead of #ifdef

The CONFIG_TRUSTY could be selected as a module while should
still work for trusty driver.

Prior to this patch, there're compile errors when selecting
CONFIG_TRUSTY=m:

drivers/trusty/trusty.c:93:5: error: redefinition of 'trusty_fast_call32'
drivers/trusty/trusty.c:109:5: error: redefinition of 'trusty_fast_call64'

So this patch just changes the "#ifdef" to "#if IS_ENABLED".

Bug 200305192

Change-Id: I867af8ce112be6eaf86c6bde311e248b1f601884
Signed-off-by: Nicolin Chen <nicolinc@nvidia.com>
Reviewed-on: http://git-master/r/1475902
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Sachin Nikam <snikam@nvidia.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/include/linux/trusty/trusty.h b/include/linux/trusty/trusty.h
index d6fffc710..542399d1b 100644
--- a/include/linux/trusty/trusty.h
+++ b/include/linux/trusty/trusty.h
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2013 Google, Inc.
- * Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.
+ * Copyright (c) 2016-2017, NVIDIA CORPORATION. All rights reserved.
  *
  * This software is licensed under the terms of the GNU General Public
  * License version 2, as published by the Free Software Foundation, and
@@ -27,7 +27,7 @@ enum {
         TRUSTY_DEV_ENABLED
 };
 
-#ifdef CONFIG_TRUSTY
+#if IS_ENABLED(CONFIG_TRUSTY)
 s32 trusty_std_call32(struct device *dev, u32 smcnr, u32 a0, u32 a1, u32 a2);
 s32 trusty_fast_call32(struct device *dev, u32 smcnr, u32 a0, u32 a1, u32 a2);
 #ifdef CONFIG_64BIT