netdev - [PATCH rdma-next v2 03/20] kernel.h: Reuse u64_to_ptr macro to cast _

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Date:   Sun, 17 Jun 2018 12:59:49 +0300
From:   Leon Romanovsky <leon@...nel.org>
To:     Doug Ledford <dledford@...hat.com>,
        Jason Gunthorpe <jgg@...lanox.com>
Cc:     Leon Romanovsky <leonro@...lanox.com>,
        RDMA mailing list <linux-rdma@...r.kernel.org>,
        Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
        Matan Barak <matanb@...lanox.com>,
        Yishai Hadas <yishaih@...lanox.com>,
        Saeed Mahameed <saeedm@...lanox.com>,
        linux-netdev <netdev@...r.kernel.org>
Subject: [PATCH rdma-next v2 03/20] kernel.h: Reuse u64_to_ptr macro to cast __user pointers

From: Leon Romanovsky <leonro@...lanox.com>

Redefine u64_to_user_ptr() macro to be implemented with u64_to_ptr().

Signed-off-by: Leon Romanovsky <leonro@...lanox.com>
---
 include/linux/kernel.h | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 7d60a3472929..3012ae2f52f7 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -83,12 +83,7 @@ static inline u64 ptr_to_u64(const void *ptr)
 }					\
 )
 
-#define u64_to_user_ptr(x) (		\
-{					\
-	typecheck(u64, x);		\
-	(void __user *)(uintptr_t)x;	\
-}					\
-)
+#define u64_to_user_ptr(x)	u64_to_ptr(void __user, x)
 
 /*
  * This looks more complex than it should be. But we need to
-- 
2.14.4