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| author | Stefan Richter <stefanr@s5r6.in-berlin.de> | 2006-12-30 15:37:09 +0100 |
|---|---|---|
| committer | Stefan Richter <stefanr@s5r6.in-berlin.de> | 2007-02-08 20:57:08 +0100 |
| commit | 4618fd300187132d12c06c64366729dd7a5280f2 (patch) | |
| tree | 74e4796fbd147aa6b24cfe851cb653809de0545e /drivers | |
| parent | dcb71129841e5821c0cbbdd4017a6f202f180108 (diff) | |
| download | kernel-crypto-4618fd300187132d12c06c64366729dd7a5280f2.tar.gz kernel-crypto-4618fd300187132d12c06c64366729dd7a5280f2.tar.xz kernel-crypto-4618fd300187132d12c06c64366729dd7a5280f2.zip | |
ieee1394: sbp2: use a better wildcard for blacklist
0x000000 could be a valid value to match against, but anything bigger
than 0xffffff cannot.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/ieee1394/sbp2.c | 20 |
1 files changed, 8 insertions, 12 deletions
diff --git a/drivers/ieee1394/sbp2.c b/drivers/ieee1394/sbp2.c index 4325aac7733..4f1b743e09e 100644 --- a/drivers/ieee1394/sbp2.c +++ b/drivers/ieee1394/sbp2.c @@ -308,6 +308,8 @@ static struct scsi_host_template sbp2_shost_template = { .sdev_attrs = sbp2_sysfs_sdev_attrs, }; +/* for match-all entries in sbp2_workarounds_table */ +#define SBP2_ROM_VALUE_WILDCARD 0x1000000 /* * List of devices with known bugs. @@ -329,22 +331,14 @@ static const struct { }, /* Initio bridges, actually only needed for some older ones */ { .firmware_revision = 0x000200, + .model_id = SBP2_ROM_VALUE_WILDCARD, .workarounds = SBP2_WORKAROUND_INQUIRY_36, }, /* Symbios bridge */ { .firmware_revision = 0xa0b800, + .model_id = SBP2_ROM_VALUE_WILDCARD, .workarounds = SBP2_WORKAROUND_128K_MAX_TRANS, }, - /* - * Note about the following Apple iPod blacklist entries: - * - * There are iPods (2nd gen, 3rd gen) with model_id==0. Since our - * matching logic treats 0 as a wildcard, we cannot match this ID - * without rewriting the matching routine. Fortunately these iPods - * do not feature the read_capacity bug according to one report. - * Read_capacity behaviour as well as model_id could change due to - * Apple-supplied firmware updates though. - */ /* iPod 4th generation */ { .firmware_revision = 0x0a2700, .model_id = 0x000021, @@ -1307,11 +1301,13 @@ static void sbp2_parse_unit_directory(struct sbp2_lu *lu, if (!(workarounds & SBP2_WORKAROUND_OVERRIDE)) for (i = 0; i < ARRAY_SIZE(sbp2_workarounds_table); i++) { - if (sbp2_workarounds_table[i].firmware_revision && + if (sbp2_workarounds_table[i].firmware_revision != + SBP2_ROM_VALUE_WILDCARD && sbp2_workarounds_table[i].firmware_revision != (firmware_revision & 0xffff00)) continue; - if (sbp2_workarounds_table[i].model_id && + if (sbp2_workarounds_table[i].model_id != + SBP2_ROM_VALUE_WILDCARD && sbp2_workarounds_table[i].model_id != ud->model_id) continue; workarounds |= sbp2_workarounds_table[i].workarounds; |