summaryrefslogtreecommitdiffstats
path: root/drivers/ieee1394/sbp2.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/ieee1394/sbp2.c')
-rw-r--r--drivers/ieee1394/sbp2.c29
1 files changed, 18 insertions, 11 deletions
diff --git a/drivers/ieee1394/sbp2.c b/drivers/ieee1394/sbp2.c
index 09e9291f184..73555806c48 100644
--- a/drivers/ieee1394/sbp2.c
+++ b/drivers/ieee1394/sbp2.c
@@ -156,6 +156,11 @@ MODULE_PARM_DESC(exclusive_login, "Exclusive login to sbp2 device (default = 1)"
* Tell sd_mod to correct the last sector number reported by read_capacity.
* Avoids access beyond actual disk limits on devices with an off-by-one bug.
* Don't use this with devices which don't have this bug.
+ *
+ * - override internal blacklist
+ * Instead of adding to the built-in blacklist, use only the workarounds
+ * specified in the module load parameter.
+ * Useful if a blacklist entry interfered with a non-broken device.
*/
static int sbp2_default_workarounds;
module_param_named(workarounds, sbp2_default_workarounds, int, 0644);
@@ -164,6 +169,7 @@ MODULE_PARM_DESC(workarounds, "Work around device bugs (default = 0"
", 36 byte inquiry = " __stringify(SBP2_WORKAROUND_INQUIRY_36)
", skip mode page 8 = " __stringify(SBP2_WORKAROUND_MODE_SENSE_8)
", fix capacity = " __stringify(SBP2_WORKAROUND_FIX_CAPACITY)
+ ", override internal blacklist = " __stringify(SBP2_WORKAROUND_OVERRIDE)
", or a combination)");
/* legacy parameter */
@@ -1587,17 +1593,18 @@ static void sbp2_parse_unit_directory(struct scsi_id_instance_data *scsi_id,
workarounds |= SBP2_WORKAROUND_INQUIRY_36;
}
- for (i = 0; i < ARRAY_SIZE(sbp2_workarounds_table); i++) {
- if (sbp2_workarounds_table[i].firmware_revision &&
- sbp2_workarounds_table[i].firmware_revision !=
- (firmware_revision & 0xffff00))
- continue;
- if (sbp2_workarounds_table[i].model_id &&
- sbp2_workarounds_table[i].model_id != ud->model_id)
- continue;
- workarounds |= sbp2_workarounds_table[i].workarounds;
- break;
- }
+ if (!(workarounds & SBP2_WORKAROUND_OVERRIDE))
+ for (i = 0; i < ARRAY_SIZE(sbp2_workarounds_table); i++) {
+ if (sbp2_workarounds_table[i].firmware_revision &&
+ sbp2_workarounds_table[i].firmware_revision !=
+ (firmware_revision & 0xffff00))
+ continue;
+ if (sbp2_workarounds_table[i].model_id &&
+ sbp2_workarounds_table[i].model_id != ud->model_id)
+ continue;
+ workarounds |= sbp2_workarounds_table[i].workarounds;
+ break;
+ }
if (workarounds)
SBP2_INFO("Workarounds for node " NODE_BUS_FMT ": 0x%x "