[BUG] buffers: buffer_forward() must not always clear BF_OUT_EMPTY
This flag was unconditionally cleared, which is wrong because we
can enable forwarding on an empty buffer.
diff --git a/include/proto/buffers.h b/include/proto/buffers.h
index abaf5ee..432146c 100644
--- a/include/proto/buffers.h
+++ b/include/proto/buffers.h
@@ -91,14 +91,17 @@
if (!bytes)
return;
- buf->flags &= ~BF_OUT_EMPTY;
data_left = buf->l - buf->send_max;
if (data_left >= bytes) {
buf->send_max += bytes;
+ buf->flags &= ~BF_OUT_EMPTY;
return;
}
buf->send_max += data_left;
+ if (buf->send_max)
+ buf->flags &= ~BF_OUT_EMPTY;
+
if (buf->to_forward == BUF_INFINITE_FORWARD)
return;