diff options
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/firewire/core-device.c | 28 |
1 files changed, 14 insertions, 14 deletions
diff --git a/drivers/firewire/core-device.c b/drivers/firewire/core-device.c index f61211977d33..014cabd3afda 100644 --- a/drivers/firewire/core-device.c +++ b/drivers/firewire/core-device.c | |||
@@ -492,29 +492,29 @@ static int read_rom(struct fw_device *device, | |||
492 | return rcode; | 492 | return rcode; |
493 | } | 493 | } |
494 | 494 | ||
495 | #define READ_BIB_ROM_SIZE 256 | 495 | #define MAX_CONFIG_ROM_SIZE 256 |
496 | 496 | ||
497 | /* | 497 | /* |
498 | * Read the bus info block, perform a speed probe, and read all of the rest of | 498 | * Read the bus info block, perform a speed probe, and read all of the rest of |
499 | * the config ROM. We do all this with a cached bus generation. If the bus | 499 | * the config ROM. We do all this with a cached bus generation. If the bus |
500 | * generation changes under us, read_bus_info_block will fail and get retried. | 500 | * generation changes under us, read_config_rom will fail and get retried. |
501 | * It's better to start all over in this case because the node from which we | 501 | * It's better to start all over in this case because the node from which we |
502 | * are reading the ROM may have changed the ROM during the reset. | 502 | * are reading the ROM may have changed the ROM during the reset. |
503 | */ | 503 | */ |
504 | static int read_bus_info_block(struct fw_device *device, int generation) | 504 | static int read_config_rom(struct fw_device *device, int generation) |
505 | { | 505 | { |
506 | const u32 *old_rom, *new_rom; | 506 | const u32 *old_rom, *new_rom; |
507 | u32 *rom, *stack; | 507 | u32 *rom, *stack; |
508 | u32 sp, key; | 508 | u32 sp, key; |
509 | int i, end, length, ret = -1; | 509 | int i, end, length, ret = -1; |
510 | 510 | ||
511 | rom = kmalloc(sizeof(*rom) * READ_BIB_ROM_SIZE + | 511 | rom = kmalloc(sizeof(*rom) * MAX_CONFIG_ROM_SIZE + |
512 | sizeof(*stack) * READ_BIB_ROM_SIZE, GFP_KERNEL); | 512 | sizeof(*stack) * MAX_CONFIG_ROM_SIZE, GFP_KERNEL); |
513 | if (rom == NULL) | 513 | if (rom == NULL) |
514 | return -ENOMEM; | 514 | return -ENOMEM; |
515 | 515 | ||
516 | stack = &rom[READ_BIB_ROM_SIZE]; | 516 | stack = &rom[MAX_CONFIG_ROM_SIZE]; |
517 | memset(rom, 0, sizeof(*rom) * READ_BIB_ROM_SIZE); | 517 | memset(rom, 0, sizeof(*rom) * MAX_CONFIG_ROM_SIZE); |
518 | 518 | ||
519 | device->max_speed = SCODE_100; | 519 | device->max_speed = SCODE_100; |
520 | 520 | ||
@@ -581,14 +581,14 @@ static int read_bus_info_block(struct fw_device *device, int generation) | |||
581 | */ | 581 | */ |
582 | key = stack[--sp]; | 582 | key = stack[--sp]; |
583 | i = key & 0xffffff; | 583 | i = key & 0xffffff; |
584 | if (WARN_ON(i >= READ_BIB_ROM_SIZE)) | 584 | if (WARN_ON(i >= MAX_CONFIG_ROM_SIZE)) |
585 | goto out; | 585 | goto out; |
586 | 586 | ||
587 | /* Read header quadlet for the block to get the length. */ | 587 | /* Read header quadlet for the block to get the length. */ |
588 | if (read_rom(device, generation, i, &rom[i]) != RCODE_COMPLETE) | 588 | if (read_rom(device, generation, i, &rom[i]) != RCODE_COMPLETE) |
589 | goto out; | 589 | goto out; |
590 | end = i + (rom[i] >> 16) + 1; | 590 | end = i + (rom[i] >> 16) + 1; |
591 | if (end > READ_BIB_ROM_SIZE) { | 591 | if (end > MAX_CONFIG_ROM_SIZE) { |
592 | /* | 592 | /* |
593 | * This block extends outside the config ROM which is | 593 | * This block extends outside the config ROM which is |
594 | * a firmware bug. Ignore this whole block, i.e. | 594 | * a firmware bug. Ignore this whole block, i.e. |
@@ -621,7 +621,7 @@ static int read_bus_info_block(struct fw_device *device, int generation) | |||
621 | * fake immediate entry so that later iterators over | 621 | * fake immediate entry so that later iterators over |
622 | * the ROM don't have to check offsets all the time. | 622 | * the ROM don't have to check offsets all the time. |
623 | */ | 623 | */ |
624 | if (i + (rom[i] & 0xffffff) >= READ_BIB_ROM_SIZE) { | 624 | if (i + (rom[i] & 0xffffff) >= MAX_CONFIG_ROM_SIZE) { |
625 | fw_error("skipped unsupported ROM entry %x at %llx\n", | 625 | fw_error("skipped unsupported ROM entry %x at %llx\n", |
626 | rom[i], | 626 | rom[i], |
627 | i * 4 | CSR_REGISTER_BASE | CSR_CONFIG_ROM); | 627 | i * 4 | CSR_REGISTER_BASE | CSR_CONFIG_ROM); |
@@ -971,7 +971,7 @@ static void fw_device_init(struct work_struct *work) | |||
971 | * device. | 971 | * device. |
972 | */ | 972 | */ |
973 | 973 | ||
974 | if (read_bus_info_block(device, device->generation) < 0) { | 974 | if (read_config_rom(device, device->generation) < 0) { |
975 | if (device->config_rom_retries < MAX_RETRIES && | 975 | if (device->config_rom_retries < MAX_RETRIES && |
976 | atomic_read(&device->state) == FW_DEVICE_INITIALIZING) { | 976 | atomic_read(&device->state) == FW_DEVICE_INITIALIZING) { |
977 | device->config_rom_retries++; | 977 | device->config_rom_retries++; |
@@ -1088,7 +1088,7 @@ enum { | |||
1088 | }; | 1088 | }; |
1089 | 1089 | ||
1090 | /* Reread and compare bus info block and header of root directory */ | 1090 | /* Reread and compare bus info block and header of root directory */ |
1091 | static int reread_bus_info_block(struct fw_device *device, int generation) | 1091 | static int reread_config_rom(struct fw_device *device, int generation) |
1092 | { | 1092 | { |
1093 | u32 q; | 1093 | u32 q; |
1094 | int i; | 1094 | int i; |
@@ -1114,7 +1114,7 @@ static void fw_device_refresh(struct work_struct *work) | |||
1114 | struct fw_card *card = device->card; | 1114 | struct fw_card *card = device->card; |
1115 | int node_id = device->node_id; | 1115 | int node_id = device->node_id; |
1116 | 1116 | ||
1117 | switch (reread_bus_info_block(device, device->generation)) { | 1117 | switch (reread_config_rom(device, device->generation)) { |
1118 | case REREAD_BIB_ERROR: | 1118 | case REREAD_BIB_ERROR: |
1119 | if (device->config_rom_retries < MAX_RETRIES / 2 && | 1119 | if (device->config_rom_retries < MAX_RETRIES / 2 && |
1120 | atomic_read(&device->state) == FW_DEVICE_INITIALIZING) { | 1120 | atomic_read(&device->state) == FW_DEVICE_INITIALIZING) { |
@@ -1148,7 +1148,7 @@ static void fw_device_refresh(struct work_struct *work) | |||
1148 | */ | 1148 | */ |
1149 | device_for_each_child(&device->device, NULL, shutdown_unit); | 1149 | device_for_each_child(&device->device, NULL, shutdown_unit); |
1150 | 1150 | ||
1151 | if (read_bus_info_block(device, device->generation) < 0) { | 1151 | if (read_config_rom(device, device->generation) < 0) { |
1152 | if (device->config_rom_retries < MAX_RETRIES && | 1152 | if (device->config_rom_retries < MAX_RETRIES && |
1153 | atomic_read(&device->state) == FW_DEVICE_INITIALIZING) { | 1153 | atomic_read(&device->state) == FW_DEVICE_INITIALIZING) { |
1154 | device->config_rom_retries++; | 1154 | device->config_rom_retries++; |