scsi: kill command serial number
No users left, kill it. Signed-off-by: Hannes Reinecke <hare@suse.com> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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@ -174,22 +174,6 @@ void scsi_log_completion(struct scsi_cmnd *cmd, int disposition)
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}
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#endif
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/**
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* scsi_cmd_get_serial - Assign a serial number to a command
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* @host: the scsi host
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* @cmd: command to assign serial number to
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*
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* Description: a serial number identifies a request for error recovery
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* and debugging purposes. Protected by the Host_Lock of host.
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*/
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void scsi_cmd_get_serial(struct Scsi_Host *host, struct scsi_cmnd *cmd)
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{
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cmd->serial_number = host->cmd_serial_number++;
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if (cmd->serial_number == 0)
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cmd->serial_number = host->cmd_serial_number++;
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}
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EXPORT_SYMBOL(scsi_cmd_get_serial);
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/**
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* scsi_finish_command - cleanup and pass command back to upper layer
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* @cmd: the command
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@ -316,7 +316,6 @@ EXPORT_SYMBOL(__scsi_execute);
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*/
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static void scsi_init_cmd_errh(struct scsi_cmnd *cmd)
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{
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cmd->serial_number = 0;
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scsi_set_resid(cmd, 0);
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memset(cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
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if (cmd->cmd_len == 0)
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@ -74,16 +74,6 @@ struct scsi_cmnd {
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int eh_eflags; /* Used by error handlr */
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/*
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* A SCSI Command is assigned a nonzero serial_number before passed
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* to the driver's queue command function. The serial_number is
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* cleared when scsi_done is entered indicating that the command
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* has been completed. It is a bug for LLDDs to use this number
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* for purposes other than printk (and even that is only useful
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* for debugging).
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*/
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unsigned long serial_number;
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/*
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* This is set to jiffies as it was when the command was first
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* allocated. It is used to time how long the command has
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@ -486,7 +486,6 @@ struct scsi_host_template {
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unsigned long irq_flags; \
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int rc; \
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spin_lock_irqsave(shost->host_lock, irq_flags); \
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scsi_cmd_get_serial(shost, cmd); \
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rc = func_name##_lck (cmd, cmd->scsi_done); \
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spin_unlock_irqrestore(shost->host_lock, irq_flags); \
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return rc; \
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@ -596,12 +595,6 @@ struct Scsi_Host {
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* is nr_hw_queues * can_queue.
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*/
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unsigned nr_hw_queues;
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/*
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* Used to assign serial numbers to the cmds.
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* Protected by the host lock.
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*/
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unsigned long cmd_serial_number;
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unsigned active_mode:2;
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unsigned unchecked_isa_dma:1;
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@ -738,7 +731,6 @@ extern int scsi_host_busy(struct Scsi_Host *shost);
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extern void scsi_host_put(struct Scsi_Host *t);
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extern struct Scsi_Host *scsi_host_lookup(unsigned short);
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extern const char *scsi_host_state_name(enum scsi_host_state);
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extern void scsi_cmd_get_serial(struct Scsi_Host *, struct scsi_cmnd *);
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static inline int __must_check scsi_add_host(struct Scsi_Host *host,
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struct device *dev)
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