[SCSI] zfcp: Update FC pass-through support
Don't access the block layer request, get the payload length instead from the FC job. Simplify access to the zfcp_port, only the d_id is required, if the port is no longer accessed later. This is possible when the els_handler does not access the port pointer from the ELS request. Reviewed-by: NSwen Schillig <swen@vnet.ibm.com> Signed-off-by: NChristof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>
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