PERFORCE change 131496 for review

[Robert Watson]

http://perforce.freebsd.org/chv.cgi?CH=131496

Change 131496 by rwatson at rwatson_cinnamon on 2007/12/23 22:55:03

	Un-XXX one comment that is now the status quot, and remove another
	that observes what is now arguably a non-problem.

Affected files ...

.. //depot/projects/zcopybpf/src/sys/net/bpf.c#31 edit

Differences ...

==== //depot/projects/zcopybpf/src/sys/net/bpf.c#31 (text+ko) ====

@@ -616,9 +616,9 @@
 	dev->si_drv1 = d;
 
 	/*
-	 * XXXRW: For historical reasons, perform a one-time initialization
-	 * call to the buffer routines, even though we're not yet committed
-	 * to a particular buffer method.
+	 * For historical reasons, perform a one-time initialization call to
+	 * the buffer routines, even though we're not yet committed to a
+	 * particular buffer method.
 	 */
 	bpf_buffer_init(d);
 	d->bd_bufmode = BPF_BUFMODE_DEFAULT;
@@ -688,11 +688,6 @@
 	BPFD_LOCK(d);
 	d->bd_pid = curthread->td_proc->p_pid;
 	if (d->bd_bufmode != BPF_BUFMODE_BUFFER) {
-		/*
-		 * XXXRW: For now, we don't implement a uiomove for the
-		 * scatter-gather buffers associated with BPF_BUFMODE_ZBUF,
-		 * so simply disallow read().
-		 */
 		BPFD_UNLOCK(d);
 		return (EOPNOTSUPP);
 	}