alpha: turn csum_partial_copy_from_user() into csum_and_copy_from_user()

It's already doing the right thing - it does access_ok() and the wrapper
in net/checksum.h is pointless here.  Just rename it and be done with that...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

arch/alpha/include/asm/checksum.h

@@ -41,7 +41,8 @@ extern __wsum csum_partial(const void *buff, int len, __wsum sum);
  * here even more important to align src and dst on a 32-bit (or even
  * better 64-bit) boundary
  */
-__wsum csum_partial_copy_from_user(const void __user *src, void *dst, int len, __wsum sum, int *errp);
+#define _HAVE_ARCH_COPY_AND_CSUM_FROM_USER
+__wsum csum_and_copy_from_user(const void __user *src, void *dst, int len, __wsum sum, int *errp);
 
 __wsum csum_partial_copy_nocheck(const void *src, void *dst, int len, __wsum sum);
 

arch/alpha/lib/csum_partial_copy.c

@@ -325,7 +325,7 @@ csum_partial_cfu_unaligned(const unsigned long __user * src,
 }
 
 __wsum
-csum_partial_copy_from_user(const void __user *src, void *dst, int len,
+csum_and_copy_from_user(const void __user *src, void *dst, int len,
 			       __wsum sum, int *errp)
 {
 	unsigned long checksum = (__force u32) sum;
@@ -369,7 +369,7 @@ csum_partial_copy_from_user(const void __user *src, void *dst, int len,
 	}
 	return (__force __wsum)checksum;
 }
-EXPORT_SYMBOL(csum_partial_copy_from_user);
+EXPORT_SYMBOL(csum_and_copy_from_user);
 
 __wsum
 csum_partial_copy_nocheck(const void *src, void *dst, int len, __wsum sum)
@@ -377,7 +377,7 @@ csum_partial_copy_nocheck(const void *src, void *dst, int len, __wsum sum)
 	__wsum checksum;
 	mm_segment_t oldfs = get_fs();
 	set_fs(KERNEL_DS);
-	checksum = csum_partial_copy_from_user((__force const void __user *)src,
+	checksum = csum_and_copy_from_user((__force const void __user *)src,
 						dst, len, sum, NULL);
 	set_fs(oldfs);
 	return checksum;