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Diffstat (limited to 'drivers/ieee1394/sbp2.c')
-rw-r--r--drivers/ieee1394/sbp2.c20
1 files changed, 8 insertions, 12 deletions
diff --git a/drivers/ieee1394/sbp2.c b/drivers/ieee1394/sbp2.c
index 4325aac7733d..4f1b743e09ed 100644
--- a/drivers/ieee1394/sbp2.c
+++ b/drivers/ieee1394/sbp2.c
@@ -308,6 +308,8 @@ static struct scsi_host_template sbp2_shost_template = {
308 .sdev_attrs = sbp2_sysfs_sdev_attrs, 308 .sdev_attrs = sbp2_sysfs_sdev_attrs,
309}; 309};
310 310
311/* for match-all entries in sbp2_workarounds_table */
312#define SBP2_ROM_VALUE_WILDCARD 0x1000000
311 313
312/* 314/*
313 * List of devices with known bugs. 315 * List of devices with known bugs.
@@ -329,22 +331,14 @@ static const struct {
329 }, 331 },
330 /* Initio bridges, actually only needed for some older ones */ { 332 /* Initio bridges, actually only needed for some older ones */ {
331 .firmware_revision = 0x000200, 333 .firmware_revision = 0x000200,
334 .model_id = SBP2_ROM_VALUE_WILDCARD,
332 .workarounds = SBP2_WORKAROUND_INQUIRY_36, 335 .workarounds = SBP2_WORKAROUND_INQUIRY_36,
333 }, 336 },
334 /* Symbios bridge */ { 337 /* Symbios bridge */ {
335 .firmware_revision = 0xa0b800, 338 .firmware_revision = 0xa0b800,
339 .model_id = SBP2_ROM_VALUE_WILDCARD,
336 .workarounds = SBP2_WORKAROUND_128K_MAX_TRANS, 340 .workarounds = SBP2_WORKAROUND_128K_MAX_TRANS,
337 }, 341 },
338 /*
339 * Note about the following Apple iPod blacklist entries:
340 *
341 * There are iPods (2nd gen, 3rd gen) with model_id==0. Since our
342 * matching logic treats 0 as a wildcard, we cannot match this ID
343 * without rewriting the matching routine. Fortunately these iPods
344 * do not feature the read_capacity bug according to one report.
345 * Read_capacity behaviour as well as model_id could change due to
346 * Apple-supplied firmware updates though.
347 */
348 /* iPod 4th generation */ { 342 /* iPod 4th generation */ {
349 .firmware_revision = 0x0a2700, 343 .firmware_revision = 0x0a2700,
350 .model_id = 0x000021, 344 .model_id = 0x000021,
@@ -1307,11 +1301,13 @@ static void sbp2_parse_unit_directory(struct sbp2_lu *lu,
1307 1301
1308 if (!(workarounds & SBP2_WORKAROUND_OVERRIDE)) 1302 if (!(workarounds & SBP2_WORKAROUND_OVERRIDE))
1309 for (i = 0; i < ARRAY_SIZE(sbp2_workarounds_table); i++) { 1303 for (i = 0; i < ARRAY_SIZE(sbp2_workarounds_table); i++) {
1310 if (sbp2_workarounds_table[i].firmware_revision && 1304 if (sbp2_workarounds_table[i].firmware_revision !=
1305 SBP2_ROM_VALUE_WILDCARD &&
1311 sbp2_workarounds_table[i].firmware_revision != 1306 sbp2_workarounds_table[i].firmware_revision !=
1312 (firmware_revision & 0xffff00)) 1307 (firmware_revision & 0xffff00))
1313 continue; 1308 continue;
1314 if (sbp2_workarounds_table[i].model_id && 1309 if (sbp2_workarounds_table[i].model_id !=
1310 SBP2_ROM_VALUE_WILDCARD &&
1315 sbp2_workarounds_table[i].model_id != ud->model_id) 1311 sbp2_workarounds_table[i].model_id != ud->model_id)
1316 continue; 1312 continue;
1317 workarounds |= sbp2_workarounds_table[i].workarounds; 1313 workarounds |= sbp2_workarounds_table[i].workarounds;