splice: fix new kernel-doc warnings

splice: fix kernel-doc warnings

  Warning(fs/splice.c:617): bad line:
  Warning(fs/splice.c:722): No description found for parameter 'sd'
  Warning(fs/splice.c:722): Excess function parameter 'pipe' description in 'splice_from_pipe_begin'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

fs/splice.c

@@ -614,7 +614,6 @@ static void wakeup_pipe_writers(struct pipe_inode_info *pipe)
  * @actor:	handler that splices the data
  *
  * Description:
-
  *    This function loops over the pipe and calls @actor to do the
  *    actual moving of a single struct pipe_buffer to the desired
  *    destination.  It returns when there's no more buffers left in
@@ -711,7 +710,7 @@ EXPORT_SYMBOL(splice_from_pipe_next);
 
 /**
  * splice_from_pipe_begin - start splicing from pipe
- * @pipe:	pipe to splice from
+ * @sd:		information about the splice operation
  *
  * Description:
  *    This function should be called before a loop containing