On Mon, 1 Dec 2014 17:12:08 +0200
"Michael S. Tsirkin" [off-list ref] wrote:

On Mon, Dec 01, 2014 at 03:21:03PM +0100, Cornelia Huck wrote:

quoted

On Mon, 1 Dec 2014 15:48:39 +0200
"Michael S. Tsirkin" [off-list ref] wrote:

quoted

On Mon, Dec 01, 2014 at 01:37:40PM +0100, Cornelia Huck wrote:

quoted

On Sun, 30 Nov 2014 17:12:13 +0200
"Michael S. Tsirkin" [off-list ref] wrote:

quoted

len is always initialized since function is called with size > 0.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 drivers/vhost/net.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
index 984242e..54ffbb0 100644
--- a/drivers/vhost/net.c
+++ b/drivers/vhost/net.c

@@ -501,7 +501,7 @@ static int get_rx_bufs(struct vhost_virtqueue *vq,
 	int headcount = 0;
 	unsigned d;
 	int r, nlogs = 0;
-	u32 len;
+	u32 uninitialized_var(len);

 	while (datalen > 0 && headcount < quota) {
 		if (unlikely(seg >= UIO_MAXIOV)) {

Want to merge this with the patch introducing the variable and add a
comment there?

Not really. Warnings in bisect are fine  I think.

I'm not sure what a separate patch buys us, though, as it should be
trivial to merge.

Easier to document the reason if it's split out.

That's why I suggested a comment ;)