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ncr5380: Remove command list debug code

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Some NCR5380 hosts offer a .show_info method to access the contents of
the various command list data structures from a procfs file. When NDEBUG
is set, the same information is sent to the console during EH.

The two core drivers, atari_NCR5380.c and NCR5380.c differ here. Because
it is just for debugging, the easiest way to fix the discrepancy is
simply remove this code.

The only remaining users of NCR5380_show_info() and NCR5380_write_info()
are drivers that define PSEUDO_DMA. The others have no use for the
.show_info method, so don't initialize it.

Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Tested-by: Ondrej Zary <linux@rainbow-software.org>
Tested-by: Michael Schmitz <schmitzmic@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Finn Thain
2016-01-03 16:05:52 +11:00
committed by Martin K. Petersen
parent 11d2f63b9c
commit e5c3fddfaa
6 changed files with 9 additions and 162 deletions
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70
drivers/scsi/NCR5380.c
View File

@@ -558,22 +558,6 @@ static void prepare_info(struct Scsi_Host *instance)
"");
}
/**
* NCR5380_print_status - dump controller info
* @instance: controller to dump
*
* Print commands in the various queues, called from NCR5380_abort
* and NCR5380_debug to aid debugging.
*
* Locks: called functions disable irqs
*/
static void __maybe_unused NCR5380_print_status(struct Scsi_Host *instance)
{
NCR5380_dprint(NDEBUG_ANY, instance);
NCR5380_dprint_phase(NDEBUG_ANY, instance);
}
#ifdef PSEUDO_DMA
/******************************************/
/*
@@ -598,65 +582,19 @@ static int __maybe_unused NCR5380_write_info(struct Scsi_Host *instance,
hostdata->spin_max_w = 0;
return 0;
}
#endif
static
void lprint_Scsi_Cmnd(struct scsi_cmnd *cmd, struct seq_file *m);
static
void lprint_command(unsigned char *cmd, struct seq_file *m);
static
void lprint_opcode(int opcode, struct seq_file *m);
static int __maybe_unused NCR5380_show_info(struct seq_file *m,
struct Scsi_Host *instance)
{
struct NCR5380_hostdata *hostdata;
struct scsi_cmnd *ptr;
unsigned long flags;
hostdata = (struct NCR5380_hostdata *) instance->hostdata;
#ifdef PSEUDO_DMA
seq_printf(m, "Highwater I/O busy spin counts: write %d, read %d\n",
hostdata->spin_max_w, hostdata->spin_max_r);
#endif
spin_lock_irqsave(&hostdata->lock, flags);
if (!hostdata->connected)
seq_printf(m, "scsi%d: no currently connected command\n", instance->host_no);
else
lprint_Scsi_Cmnd((struct scsi_cmnd *) hostdata->connected, m);
seq_printf(m, "scsi%d: issue_queue\n", instance->host_no);
for (ptr = (struct scsi_cmnd *) hostdata->issue_queue; ptr; ptr = (struct scsi_cmnd *) ptr->host_scribble)
lprint_Scsi_Cmnd(ptr, m);
seq_printf(m, "scsi%d: disconnected_queue\n", instance->host_no);
for (ptr = (struct scsi_cmnd *) hostdata->disconnected_queue; ptr; ptr = (struct scsi_cmnd *) ptr->host_scribble)
lprint_Scsi_Cmnd(ptr, m);
spin_unlock_irqrestore(&hostdata->lock, flags);
return 0;
}
static void lprint_Scsi_Cmnd(struct scsi_cmnd *cmd, struct seq_file *m)
{
seq_printf(m, "scsi%d : destination target %d, lun %llu\n", cmd->device->host->host_no, cmd->device->id, cmd->device->lun);
seq_puts(m, " command = ");
lprint_command(cmd->cmnd, m);
}
static void lprint_command(unsigned char *command, struct seq_file *m)
{
int i, s;
lprint_opcode(command[0], m);
for (i = 1, s = COMMAND_SIZE(command[0]); i < s; ++i)
seq_printf(m, "%02x ", command[i]);
seq_putc(m, '\n');
}
static void lprint_opcode(int opcode, struct seq_file *m)
{
seq_printf(m, "%2d (0x%02x)", opcode, opcode);
}
#endif
/**
* NCR5380_init - initialise an NCR5380
@@ -2335,7 +2273,8 @@ static int NCR5380_abort(struct scsi_cmnd *cmd)
spin_lock_irqsave(&hostdata->lock, flags);
NCR5380_print_status(instance);
NCR5380_dprint(NDEBUG_ANY, instance);
NCR5380_dprint_phase(NDEBUG_ANY, instance);
dprintk(NDEBUG_ABORT, "scsi%d : abort called\n", instance->host_no);
dprintk(NDEBUG_ABORT, " basr 0x%X, sr 0x%X\n", NCR5380_read(BUS_AND_STATUS_REG), NCR5380_read(STATUS_REG));
@@ -2490,8 +2429,9 @@ static int NCR5380_bus_reset(struct scsi_cmnd *cmd)
#if (NDEBUG & NDEBUG_ANY)
scmd_printk(KERN_INFO, cmd, "performing bus reset\n");
NCR5380_print_status(instance);
#endif
NCR5380_dprint(NDEBUG_ANY, instance);
NCR5380_dprint_phase(NDEBUG_ANY, instance);
do_reset(instance);