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authorFinn Thain <fthain@telegraphics.com.au>2014-11-12 08:11:57 +0300
committerChristoph Hellwig <hch@lst.de>2014-11-20 11:11:07 +0300
commit270ac2c290ad8b83c92ceeed07aaf49ec5807851 (patch)
tree0dabf1e56da98f3cf1432620702631c6e997309a /drivers/scsi/atari_NCR5380.c
parent22f5f10d2dadc50bf26a482b782a5e04f6e9b362 (diff)
downloadlinux-270ac2c290ad8b83c92ceeed07aaf49ec5807851.tar.xz
ncr5380: Remove NCR5380_STATS
The NCR5380_STATS option is only enabled by g_NCR5380 yet it adds clutter to all three core drivers. The atari_NCR5380.c and sun3_NCR5380.c core drivers have a slightly different implementation of the NCR5380_STATS option. Out of all ten NCR5380 drivers, only one of them (g_NCR5380) actually has the code to report on the collected stats. Aside from being unreadable, that code seems to be broken because there's no initialization of timebase. sun3_NCR5380.c and atari_NCR5380.c have the timebase initialization but lack the code to report the stats. Remove all of this code to improve readability and reduce divergence between the three core drivers. This patch and the next one completely eliminate the PRINTP and ANDP pre-processor abuse. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Reviewed-by: Hannes Reinecke <hare@suse.de> Tested-by: Michael Schmitz <schmitzmic@gmail.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/scsi/atari_NCR5380.c')
-rw-r--r--drivers/scsi/atari_NCR5380.c65
1 files changed, 0 insertions, 65 deletions
diff --git a/drivers/scsi/atari_NCR5380.c b/drivers/scsi/atari_NCR5380.c
index f69d36327a7d..6177830ef0d9 100644
--- a/drivers/scsi/atari_NCR5380.c
+++ b/drivers/scsi/atari_NCR5380.c
@@ -888,34 +888,6 @@ static int NCR5380_queue_command_lck(Scsi_Cmnd *cmd, void (*done)(Scsi_Cmnd *))
}
#endif /* (NDEBUG & NDEBUG_NO_WRITE) */
-#ifdef NCR5380_STATS
-# if 0
- if (!hostdata->connected && !hostdata->issue_queue &&
- !hostdata->disconnected_queue) {
- hostdata->timebase = jiffies;
- }
-# endif
-# ifdef NCR5380_STAT_LIMIT
- if (scsi_bufflen(cmd) > NCR5380_STAT_LIMIT)
-# endif
- switch (cmd->cmnd[0]) {
- case WRITE:
- case WRITE_6:
- case WRITE_10:
- hostdata->time_write[cmd->device->id] -= (jiffies - hostdata->timebase);
- hostdata->bytes_write[cmd->device->id] += scsi_bufflen(cmd);
- hostdata->pendingw++;
- break;
- case READ:
- case READ_6:
- case READ_10:
- hostdata->time_read[cmd->device->id] -= (jiffies - hostdata->timebase);
- hostdata->bytes_read[cmd->device->id] += scsi_bufflen(cmd);
- hostdata->pendingr++;
- break;
- }
-#endif
-
/*
* We use the host_scribble field as a pointer to the next command
* in a queue
@@ -1309,31 +1281,6 @@ static irqreturn_t NCR5380_intr(int irq, void *dev_id)
return IRQ_RETVAL(handled);
}
-#ifdef NCR5380_STATS
-static void collect_stats(struct NCR5380_hostdata* hostdata, Scsi_Cmnd *cmd)
-{
-# ifdef NCR5380_STAT_LIMIT
- if (scsi_bufflen(cmd) > NCR5380_STAT_LIMIT)
-# endif
- switch (cmd->cmnd[0]) {
- case WRITE:
- case WRITE_6:
- case WRITE_10:
- hostdata->time_write[cmd->device->id] += (jiffies - hostdata->timebase);
- /*hostdata->bytes_write[cmd->device->id] += scsi_bufflen(cmd);*/
- hostdata->pendingw--;
- break;
- case READ:
- case READ_6:
- case READ_10:
- hostdata->time_read[cmd->device->id] += (jiffies - hostdata->timebase);
- /*hostdata->bytes_read[cmd->device->id] += scsi_bufflen(cmd);*/
- hostdata->pendingr--;
- break;
- }
-}
-#endif
-
/*
* Function : int NCR5380_select (struct Scsi_Host *instance, Scsi_Cmnd *cmd)
*
@@ -1598,9 +1545,6 @@ static int NCR5380_select(struct Scsi_Host *instance, Scsi_Cmnd *cmd)
return -1;
}
cmd->result = DID_BAD_TARGET << 16;
-#ifdef NCR5380_STATS
- collect_stats(hostdata, cmd);
-#endif
#ifdef SUPPORT_TAGS
cmd_free_tag(cmd);
#endif
@@ -2127,9 +2071,6 @@ static void NCR5380_information_transfer(struct Scsi_Host *instance)
dprintk(NDEBUG_LINKED, "scsi%d: target %d lun %llu linked request "
"done, calling scsi_done().\n",
HOSTNO, cmd->device->id, cmd->device->lun);
-#ifdef NCR5380_STATS
- collect_stats(hostdata, cmd);
-#endif
cmd->scsi_done(cmd);
cmd = hostdata->connected;
break;
@@ -2209,9 +2150,6 @@ static void NCR5380_information_transfer(struct Scsi_Host *instance)
dprintk(NDEBUG_QUEUES, "scsi%d: REQUEST SENSE added to head of "
"issue queue\n", H_NO(cmd));
} else {
-#ifdef NCR5380_STATS
- collect_stats(hostdata, cmd);
-#endif
cmd->scsi_done(cmd);
}
@@ -2396,9 +2334,6 @@ static void NCR5380_information_transfer(struct Scsi_Host *instance)
#endif
hostdata->connected = NULL;
cmd->result = DID_ERROR << 16;
-#ifdef NCR5380_STATS
- collect_stats(hostdata, cmd);
-#endif
cmd->scsi_done(cmd);
NCR5380_write(SELECT_ENABLE_REG, hostdata->id_mask);
falcon_release_lock_if_possible(hostdata);