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[SCSI] libsas: Warn if ATA device detected but CONFIG_SCSI_SAS_ATA not set

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We give a very cryptic error if an ATA device is seen on a SAS port
but libsas isn't compiled to include libata to handle them.  Add an
extra warning to explain specifically what the problem is.

Acked-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This commit is contained in:
James Bottomley
2008-03-26 09:26:13 -07:00
parent 77cca462c6
commit 15c73d5afd
1 changed files with 4 additions and 1 deletions
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5
drivers/scsi/libsas/sas_discover.c
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@@ -295,11 +295,14 @@ static void sas_discover_domain(struct work_struct *work)
case FANOUT_DEV: case FANOUT_DEV:
error = sas_discover_root_expander(dev); error = sas_discover_root_expander(dev);
break; break;
#ifdef CONFIG_SCSI_SAS_ATA
case SATA_DEV: case SATA_DEV:
case SATA_PM: case SATA_PM:
#ifdef CONFIG_SCSI_SAS_ATA
error = sas_discover_sata(dev); error = sas_discover_sata(dev);
break; break;
#else
SAS_DPRINTK("ATA device seen but CONFIG_SCSI_SAS_ATA=N so cannot attach\n");
/* Fall through */
#endif #endif
default: default:
error = -ENXIO; error = -ENXIO;