diff options
author | Kevin Barnett <kevin.barnett@pmcs.com> | 2015-11-04 15:51:51 -0600 |
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committer | Martin K. Petersen <martin.petersen@oracle.com> | 2015-11-09 12:34:23 -0500 |
commit | 096ccff47e152aef8e9ef318c02781daedc433b7 (patch) | |
tree | 8a3610b6dc1c727c5e39c6aaaa80e60f3d1e1d1e /drivers/scsi | |
parent | c795505a742807fe6ba81d6c63b57c7d2737df3d (diff) | |
download | op-kernel-dev-096ccff47e152aef8e9ef318c02781daedc433b7.zip op-kernel-dev-096ccff47e152aef8e9ef318c02781daedc433b7.tar.gz |
hpsa: move scsi_add_device and scsi_remove_device calls to new function
preparation for adding the sas transport class
Reviewed-by: Scott Teel <scott.teel@pmcs.com>
Reviewed-by: Justin Lindley <justin.lindley@pmcs.com>
Reviewed-by: Kevin Barnett <kevin.barnett@pmcs.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: Don Brace <don.brace@pmcs.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi')
-rw-r--r-- | drivers/scsi/hpsa.c | 71 |
1 files changed, 45 insertions, 26 deletions
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index c95ff8c..0af4c67 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -1653,6 +1653,43 @@ static void hpsa_update_log_drive_phys_drive_ptrs(struct ctlr_info *h, } } +static int hpsa_add_device(struct ctlr_info *h, struct hpsa_scsi_dev_t *device) +{ + int rc = 0; + + if (!h->scsi_host) + return 1; + + rc = scsi_add_device(h->scsi_host, device->bus, + device->target, device->lun); + return rc; +} + +static void hpsa_remove_device(struct ctlr_info *h, + struct hpsa_scsi_dev_t *device) +{ + struct scsi_device *sdev = NULL; + + if (!h->scsi_host) + return; + + sdev = scsi_device_lookup(h->scsi_host, device->bus, + device->target, device->lun); + + if (sdev) { + scsi_remove_device(sdev); + scsi_device_put(sdev); + } else { + /* + * We don't expect to get here. Future commands + * to this device will get a selection timeout as + * if the device were gone. + */ + hpsa_show_dev_msg(KERN_WARNING, h, device, + "didn't find device for removal."); + } +} + static void adjust_hpsa_scsi_table(struct ctlr_info *h, struct hpsa_scsi_dev_t *sd[], int nsds) { @@ -1665,7 +1702,6 @@ static void adjust_hpsa_scsi_table(struct ctlr_info *h, unsigned long flags; struct hpsa_scsi_dev_t **added, **removed; int nadded, nremoved; - struct Scsi_Host *sh = NULL; /* * A reset can cause a device status to change @@ -1783,46 +1819,29 @@ static void adjust_hpsa_scsi_table(struct ctlr_info *h, if (!changes) goto free_and_out; - sh = h->scsi_host; - if (sh == NULL) { - dev_warn(&h->pdev->dev, "%s: scsi_host is null\n", __func__); - goto free_and_out; - } /* Notify scsi mid layer of any removed devices */ for (i = 0; i < nremoved; i++) { if (removed[i] == NULL) continue; - if (removed[i]->expose_device) { - struct scsi_device *sdev = - scsi_device_lookup(sh, removed[i]->bus, - removed[i]->target, removed[i]->lun); - if (sdev != NULL) { - scsi_remove_device(sdev); - scsi_device_put(sdev); - } else { - /* - * We don't expect to get here. - * future cmds to this device will get selection - * timeout as if the device was gone. - */ - hpsa_show_dev_msg(KERN_WARNING, h, removed[i], - "didn't find device for removal."); - } - } + if (removed[i]->expose_device) + hpsa_remove_device(h, removed[i]); kfree(removed[i]); removed[i] = NULL; } /* Notify scsi mid layer of any added devices */ for (i = 0; i < nadded; i++) { + int rc = 0; + if (added[i] == NULL) continue; if (!(added[i]->expose_device)) continue; - if (scsi_add_device(sh, added[i]->bus, - added[i]->target, added[i]->lun) == 0) + rc = hpsa_add_device(h, added[i]); + if (!rc) continue; - dev_warn(&h->pdev->dev, "addition failed, device not added."); + dev_warn(&h->pdev->dev, + "addition failed %d, device not added.", rc); /* now we have to remove it from h->dev, * since it didn't get added to scsi mid layer */ |