linux-kernel - [PATCH v2 4/5] virtio_blk: Don't bother validating blocksize

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Message-Id: <20240708091651.177447-5-john.g.garry@oracle.com>
Date: Mon,  8 Jul 2024 09:16:50 +0000
From: John Garry <john.g.garry@...cle.com>
To: axboe@...nel.dk, mst@...hat.com, jasowang@...hat.com,
        xuanzhuo@...ux.alibaba.com, eperezma@...hat.com, pbonzini@...hat.com,
        stefanha@...hat.com, hare@...e.de, kbusch@...nel.org, hch@....de
Cc: linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
        virtualization@...ts.linux.dev, John Garry <john.g.garry@...cle.com>
Subject: [PATCH v2 4/5] virtio_blk: Don't bother validating blocksize

The block queue limits validation does this for us now.

Reviewed-by: Christoph Hellwig <hch@....de>
Acked-by: Michael S. Tsirkin <mst@...hat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@...hat.com>
Signed-off-by: John Garry <john.g.garry@...cle.com>
---
 drivers/block/virtio_blk.c | 11 +----------
 1 file changed, 1 insertion(+), 10 deletions(-)

diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index f11b0c3b2625..e3147a611151 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -1289,18 +1289,9 @@ static int virtblk_read_limits(struct virtio_blk *vblk,
 	lim->max_segment_size = max_size;
 
 	/* Host can optionally specify the block size of the device */
-	err = virtio_cread_feature(vdev, VIRTIO_BLK_F_BLK_SIZE,
+	virtio_cread_feature(vdev, VIRTIO_BLK_F_BLK_SIZE,
 				   struct virtio_blk_config, blk_size,
 				   &lim->logical_block_size);
-	if (!err) {
-		err = blk_validate_block_size(lim->logical_block_size);
-		if (err) {
-			dev_err(&vdev->dev,
-				"virtio_blk: invalid block size: 0x%x\n",
-				lim->logical_block_size);
-			return err;
-		}
-	}
 
 	/* Use topology information if available */
 	err = virtio_cread_feature(vdev, VIRTIO_BLK_F_TOPOLOGY,
-- 
2.31.1