From: Jeff Dike <jdike@addtoit.com>
Date: Mon, 27 Mar 2006 09:14:27 +0000 (-0800)
Subject: [PATCH] uml: fix build warnings in __get_user
X-Git-Tag: v2.6.17-rc1~475
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bb83da053319e81906473bec08e8f677d6ac615f;p=linux-2.6

[PATCH] uml: fix build warnings in __get_user

Fix a gcc warning about losing qualifiers to the first argument of
copy_from_user.  The typeof change for correctness, and fixes a lot of the
warnings, but there are some cases where x has some extra qualifiers, like
volatile, which copy_from_user can't know about.  For these, the void * cast
seems to be necessary.

Also cleaned up some of the whitespace and got rid of the emacs comment at the
bottom.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/include/asm-um/uaccess.h b/include/asm-um/uaccess.h
index 2ee028b8de..4e460d6f5a 100644
--- a/include/asm-um/uaccess.h
+++ b/include/asm-um/uaccess.h
@@ -41,16 +41,16 @@
 
 #define __get_user(x, ptr) \
 ({ \
-        const __typeof__(ptr) __private_ptr = ptr; \
-        __typeof__(*(__private_ptr)) __private_val; \
-        int __private_ret = -EFAULT; \
-        (x) = (__typeof__(*(__private_ptr)))0; \
-	if (__copy_from_user(&__private_val, (__private_ptr), \
-	    sizeof(*(__private_ptr))) == 0) {\
-        	(x) = (__typeof__(*(__private_ptr))) __private_val; \
-		__private_ret = 0; \
-	} \
-        __private_ret; \
+	const __typeof__(ptr) __private_ptr = ptr;	\
+	__typeof__(x) __private_val;			\
+	int __private_ret = -EFAULT;			\
+	(x) = (__typeof__(*(__private_ptr)))0;				\
+	if (__copy_from_user((void *) &__private_val, (__private_ptr),	\
+			     sizeof(*(__private_ptr))) == 0) {		\
+		(x) = (__typeof__(*(__private_ptr))) __private_val;	\
+		__private_ret = 0;					\
+	}								\
+	__private_ret;							\
 }) 
 
 #define get_user(x, ptr) \
@@ -89,14 +89,3 @@ struct exception_table_entry
 };
 
 #endif
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only.  This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */