parisc: Avoid compiler warnings with access_ok()

PATCH New Helge Deller 1 participant 1 message Mar 15, 2017 PA-RISC architecture

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Helge Deller

author maintainer

2017-03-15 20:48 UTC #0 lore raw

PATCH 1/1 parisc: Avoid compiler warnings with access_ok()

Commit 09b871ffd4d8 (parisc: Define access_ok() as macro) missed to mark uaddr as used, which then gives compiler warnings about unused variables.

Fix it by comparing uaddr to uaddr which then gets optimized away by the compiler.

Signed-off-by Helge Deller <[email protected]>

Fixes 09b871ffd4d8 ("parisc: Define access_ok() as macro")

arch/parisc/include/asm/uaccess.h +2 -1

index fb4382c..edfbf9d 100644
@@ -32,7 +32,8 @@
  * that put_user is the same as __put_user, etc.
  */
 
-#define access_ok(type, uaddr, size) (1)
+#define access_ok(type, uaddr, size)	\
+	( (uaddr) == (uaddr) )
 
 #define put_user __put_user
 #define get_user __get_user