This is a note to let you know that I've just added the patch titled
virtio-blk: modify the value type of num in virtio_queue_rq()
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
virtio-blk-modify-the-value-type-of-num-in-virtio_queue_rq.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 0466a39bd0b6c462338f10d18076703d14a552de Mon Sep 17 00:00:00 2001
From: Ye Guojin <ye.guojin@xxxxxxxxxx>
Date: Wed, 17 Nov 2021 06:39:55 +0000
Subject: virtio-blk: modify the value type of num in virtio_queue_rq()
From: Ye Guojin <ye.guojin@xxxxxxxxxx>
commit 0466a39bd0b6c462338f10d18076703d14a552de upstream.
This was found by coccicheck:
./drivers/block/virtio_blk.c, 334, 14-17, WARNING Unsigned expression
compared with zero num < 0
Reported-by: Zeal Robot <zealci@xxxxxxxxxx>
Signed-off-by: Ye Guojin <ye.guojin@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20211117063955.160777-1-ye.guojin@xxxxxxxxxx
Signed-off-by: Michael S. Tsirkin <mst@xxxxxxxxxx>
Fixes: 02746e26c39e ("virtio-blk: avoid preallocating big SGL for data")
Reviewed-by: Stefano Garzarella <sgarzare@xxxxxxxxxx>
Reviewed-by: Max Gurtovoy <mgurtovoy@xxxxxxxxxx>
Reviewed-by: Stefan Hajnoczi <stefanha@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/block/virtio_blk.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -308,7 +308,7 @@ static blk_status_t virtio_queue_rq(stru
struct request *req = bd->rq;
struct virtblk_req *vbr = blk_mq_rq_to_pdu(req);
unsigned long flags;
- unsigned int num;
+ int num;
int qid = hctx->queue_num;
int err;
bool notify = false;
Patches currently in stable-queue which might be from ye.guojin@xxxxxxxxxx are
queue-5.15/virtio-blk-modify-the-value-type-of-num-in-virtio_queue_rq.patch
