Re: [patch] rbd: endian bug in rbd_req_cb()

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On 05/04/2012 12:39 PM, Dan Carpenter wrote:
> Sparse complains about this because:
> drivers/block/rbd.c:996:20: warning: cast to restricted __le32
> drivers/block/rbd.c:996:20: warning: cast from restricted __le16
> 
> These are set in osd_req_encode_op() and they are le16.

I had made a note to myself to fix this as well--and have a whole
series of patches in my queue related to improving consistency with
sizes and signedness.

Thank you for sending this, it looks good and I'm about to commit it.

Reviewed-by: Alex Elder <elder@xxxxxxxxxxx>

> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
> 
> diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
> index c1f7701..64d3d6f 100644
> --- a/drivers/block/rbd.c
> +++ b/drivers/block/rbd.c
> @@ -993,7 +993,7 @@ static void rbd_req_cb(struct ceph_osd_request *req, struct ceph_msg *msg)
>  	op = (void *)(replyhead + 1);
>  	rc = le32_to_cpu(replyhead->result);
>  	bytes = le64_to_cpu(op->extent.length);
> -	read_op = (le32_to_cpu(op->op) == CEPH_OSD_OP_READ);
> +	read_op = (le16_to_cpu(op->op) == CEPH_OSD_OP_READ);
>  
>  	dout("rbd_req_cb bytes=%lld readop=%d rc=%d\n", bytes, read_op, rc);
>  
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