Messages in this thread | | | Date | Mon, 11 Oct 2021 13:40:41 +0200 | From | Christoph Hellwig <> | Subject | Re: [PATCH v5] virtio-blk: Add validation for block size in config space |
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On Tue, Oct 05, 2021 at 06:42:43AM -0400, Michael S. Tsirkin wrote: > Stefan also pointed out this duplicates the logic from > > if (blksize < 512 || blksize > PAGE_SIZE || !is_power_of_2(blksize)) > return -EINVAL; > > > and a bunch of other places. > > > Would it be acceptable for blk layer to validate the input > instead of having each driver do it's own thing? > Maybe inside blk_queue_logical_block_size?
I'm pretty sure we want down that before. Let's just add a helper just for that check for now as part of this series. Actually validating in in blk_queue_logical_block_size seems like a good idea, but returning errors from that has a long tail.
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