scsi: devinfo: warn on undefined blist flags
Warn if a device (or the user) sets blist flags which are unknown
or have been removed. This should enable us to reuse freed blist
bits in later releases.
Signed-off-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
diff --git a/drivers/scsi/scsi_devinfo.c b/drivers/scsi/scsi_devinfo.c
index bd04a33..9603f3e 100644
--- a/drivers/scsi/scsi_devinfo.c
+++ b/drivers/scsi/scsi_devinfo.c
@@ -370,6 +370,12 @@
}
flags = (__force blist_flags_t)val;
}
+ if (flags & __BLIST_UNUSED_MASK) {
+ pr_err("scsi_devinfo (%s:%s): unsupported flags 0x%llx",
+ vendor, model, flags & __BLIST_UNUSED_MASK);
+ kfree(devinfo);
+ return -EINVAL;
+ }
devinfo->flags = flags;
devinfo->compatible = compatible;