diff options
| -rw-r--r-- | drivers/firewire/core-card.c | 17 | ||||
| -rw-r--r-- | drivers/firewire/core-topology.c | 17 | ||||
| -rw-r--r-- | drivers/firewire/core-transaction.c | 9 | ||||
| -rw-r--r-- | drivers/firewire/core.h | 2 | ||||
| -rw-r--r-- | include/linux/firewire.h | 2 |
5 files changed, 16 insertions, 31 deletions
diff --git a/drivers/firewire/core-card.c b/drivers/firewire/core-card.c index f5813078999..7083bcc1b9c 100644 --- a/drivers/firewire/core-card.c +++ b/drivers/firewire/core-card.c @@ -38,7 +38,7 @@ #include "core.h" -static int __compute_block_crc(__be32 *block) +int fw_compute_block_crc(__be32 *block) { int length; u16 crc; @@ -50,19 +50,6 @@ static int __compute_block_crc(__be32 *block) return length; } -int fw_compute_block_crc(u32 *block) -{ - __be32 be32_block[256]; - int i, length; - - length = (*block >> 16) & 0xff; - for (i = 0; i < length; i++) - be32_block[i] = cpu_to_be32(block[i + 1]); - *block |= crc_itu_t(0, (u8 *) be32_block, length * 4); - - return length; -} - static DEFINE_MUTEX(card_mutex); static LIST_HEAD(card_list); @@ -141,7 +128,7 @@ static size_t generate_config_rom(struct fw_card *card, __be32 *config_rom) * the bus info block, which is always the case for this * implementation. */ for (i = 0; i < j; i += length + 1) - length = __compute_block_crc(config_rom + i); + length = fw_compute_block_crc(config_rom + i); return j; } diff --git a/drivers/firewire/core-topology.c b/drivers/firewire/core-topology.c index fddf2b35893..9a5f38c80b0 100644 --- a/drivers/firewire/core-topology.c +++ b/drivers/firewire/core-topology.c @@ -28,9 +28,9 @@ #include <linux/module.h> #include <linux/slab.h> #include <linux/spinlock.h> -#include <linux/string.h> #include <asm/atomic.h> +#include <asm/byteorder.h> #include <asm/system.h> #include "core.h" @@ -510,13 +510,16 @@ static void update_tree(struct fw_card *card, struct fw_node *root) static void update_topology_map(struct fw_card *card, u32 *self_ids, int self_id_count) { - int node_count; + int node_count = (card->root_node->node_id & 0x3f) + 1; + __be32 *map = card->topology_map; + + *map++ = cpu_to_be32((self_id_count + 2) << 16); + *map++ = cpu_to_be32(be32_to_cpu(card->topology_map[1]) + 1); + *map++ = cpu_to_be32((node_count << 16) | self_id_count); + + while (self_id_count--) + *map++ = cpu_to_be32p(self_ids++); - card->topology_map[1]++; - node_count = (card->root_node->node_id & 0x3f) + 1; - card->topology_map[2] = (node_count << 16) | self_id_count; - card->topology_map[0] = (self_id_count + 2) << 16; - memcpy(&card->topology_map[3], self_ids, self_id_count * 4); fw_compute_block_crc(card->topology_map); } diff --git a/drivers/firewire/core-transaction.c b/drivers/firewire/core-transaction.c index da628c72a46..203e6428bad 100644 --- a/drivers/firewire/core-transaction.c +++ b/drivers/firewire/core-transaction.c @@ -810,8 +810,7 @@ static void handle_topology_map(struct fw_card *card, struct fw_request *request int speed, unsigned long long offset, void *payload, size_t length, void *callback_data) { - int i, start, end; - __be32 *map; + int start; if (!TCODE_IS_READ_REQUEST(tcode)) { fw_send_response(card, request, RCODE_TYPE_ERROR); @@ -824,11 +823,7 @@ static void handle_topology_map(struct fw_card *card, struct fw_request *request } start = (offset - topology_map_region.start) / 4; - end = start + length / 4; - map = payload; - - for (i = 0; i < length / 4; i++) - map[i] = cpu_to_be32(card->topology_map[start + i]); + memcpy(payload, &card->topology_map[start], length); fw_send_response(card, request, RCODE_COMPLETE); } diff --git a/drivers/firewire/core.h b/drivers/firewire/core.h index 7adca7cb9f5..ed3b1a765c0 100644 --- a/drivers/firewire/core.h +++ b/drivers/firewire/core.h @@ -94,7 +94,7 @@ int fw_card_add(struct fw_card *card, u32 max_receive, u32 link_speed, u64 guid); void fw_core_remove_card(struct fw_card *card); int fw_core_initiate_bus_reset(struct fw_card *card, int short_reset); -int fw_compute_block_crc(u32 *block); +int fw_compute_block_crc(__be32 *block); void fw_schedule_bm_work(struct fw_card *card, unsigned long delay); static inline struct fw_card *fw_card_get(struct fw_card *card) diff --git a/include/linux/firewire.h b/include/linux/firewire.h index 53b9217de86..211a5d7d87b 100644 --- a/include/linux/firewire.h +++ b/include/linux/firewire.h @@ -117,7 +117,7 @@ struct fw_card { bool broadcast_channel_allocated; u32 broadcast_channel; - u32 topology_map[(CSR_TOPOLOGY_MAP_END - CSR_TOPOLOGY_MAP) / 4]; + __be32 topology_map[(CSR_TOPOLOGY_MAP_END - CSR_TOPOLOGY_MAP) / 4]; }; struct fw_attribute_group { |