On 12/1/18 12:34 AM, David Disseldorp wrote:
Initialise the t10_wwn vendor, model and revision defaults when a
device is allocated instead of when it's enabled. This ensures that
custom vendor or model strings set prior to enablement are not later
overwritten with default values.
Signed-off-by: David Disseldorp <ddiss@xxxxxxx>
---
drivers/target/target_core_device.c | 34 +++++++++++++++++-----------------
1 file changed, 17 insertions(+), 17 deletions(-)
> diff --git a/drivers/target/target_core_device.c
b/drivers/target/target_core_device.c
index 5512871f50e4..6318d59a1564 100644
--- a/drivers/target/target_core_device.c
+++ b/drivers/target/target_core_device.c
@@ -810,6 +810,23 @@ struct se_device *target_alloc_device(struct se_hba *hba, const char *name)
mutex_init(&xcopy_lun->lun_tg_pt_md_mutex);
xcopy_lun->lun_tpg = &xcopy_pt_tpg;
+ /*
+ * Preload the initial INQUIRY const values if we are doing
+ * anything virtual (IBLOCK, FILEIO, RAMDISK), but not for TCM/pSCSI
+ * passthrough because this is being provided by the backend LLD.
+ */
+ BUILD_BUG_ON(sizeof(dev->t10_wwn.vendor) != INQUIRY_VENDOR_LEN + 1);
+ BUILD_BUG_ON(sizeof(dev->t10_wwn.model) != INQUIRY_MODEL_LEN + 1);
+ BUILD_BUG_ON(sizeof(dev->t10_wwn.revision) != INQUIRY_REVISION_LEN + 1);
+ if (!(dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH)) {
+ strlcpy(dev->t10_wwn.vendor, "LIO-ORG",
+ sizeof(dev->t10_wwn.vendor));
+ strlcpy(dev->t10_wwn.model, dev->transport->inquiry_prod,
+ sizeof(dev->t10_wwn.model));
+ strlcpy(dev->t10_wwn.revision, dev->transport->inquiry_rev,
+ sizeof(dev->t10_wwn.revision));
+ }
+
return dev;
}
This is odd. I'd rather have it consistent across backends, ie either
move the initialisation into the backends, or provide a means to check
if the inquiry data has already been pre-filled.
But this check really is awkward.
Cheers,
Hannes
