I see this function,struct Scsi_Host *scsi_host_alloc(struct scsi_host_template *, int), I am wondering what does the second parameter used for?Say, /** * scsi_host_alloc - register a scsi host adapter instance. * @sht: pointer to scsi host template * @privsize: extra bytes to allocate for driver * * Note: * Allocate a new Scsi_Host and perform basic initialization. * The host is not published to the scsi midlayer until scsi_add_host * is called. * * Return value: * Pointer to a new Scsi_Host **/ struct Scsi_Host *scsi_host_alloc(struct scsi_host_template *sht, int privsize) I mean the privsize, i.e. extra bytes, why do we need such extra bytes?Who will use it? Regards Jason Xiao - To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
