On Wed, 2015-07-22 at 15:08 -0700, Spencer Baugh wrote:
> From: Roland Dreier <roland@xxxxxxxxxxxxxxx>
>
> It's not necessarily a fatal error if a command with a data-out phase
> has a data length that differs from the transport data length (e.g.
> PERSISTENT RESERVE OUT might have a parameter list length in the CDB
> that's smaller than the FC_DL field), so allow these commands. The
> Windows compliance test sends them.
>
> Signed-off-by: Roland Dreier <roland@xxxxxxxxxxxxxxx>
> Signed-off-by: Spencer Baugh <sbaugh@xxxxxxxxxx>
> ---
> drivers/target/target_core_transport.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
> index ac002a7..f6626bb 100644
> --- a/drivers/target/target_core_transport.c
> +++ b/drivers/target/target_core_transport.c
> @@ -1087,9 +1087,9 @@ target_cmd_size_check(struct se_cmd *cmd, unsigned int size)
> " 0x%02x\n", cmd->se_tfo->get_fabric_name(),
> cmd->data_length, size, cmd->t_task_cdb[0]);
>
> - if (cmd->data_direction == DMA_TO_DEVICE) {
> - pr_err("Rejecting underflow/overflow"
> - " WRITE data\n");
> + if (cmd->data_direction == DMA_TO_DEVICE &&
> + cmd->se_cmd_flags & SCF_SCSI_DATA_CDB) {
> + pr_err("Rejecting underflow/overflow WRITE data\n");
> return TCM_INVALID_CDB_FIELD;
> }
> /*
Applied to target-pending/for-next.
Thanks Roland & Co.
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