[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 2ee028b..4e460d6 100644 (file)
--- 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:
- */