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| author | Stefan Richter <stefanr@s5r6.in-berlin.de> | 2010-06-12 20:29:07 +0200 |
|---|---|---|
| committer | Stefan Richter <stefanr@s5r6.in-berlin.de> | 2010-06-19 13:01:40 +0200 |
| commit | e847cc832bab50aad939a0c30414cd986637564d (patch) | |
| tree | 35b5d7af3e3f3337b8f7c9c43029618bec3a1f69 /drivers/firewire | |
| parent | 65b2742ac002f554f6ca0c2eab84cc62400eafdf (diff) | |
| download | blackbird-op-linux-e847cc832bab50aad939a0c30414cd986637564d.tar.gz blackbird-op-linux-e847cc832bab50aad939a0c30414cd986637564d.zip | |
firewire: drop sizeof expressions from some request size arguments
In case of fw_card_bm_work()'s lock request, the present sizeof
expression is going to be wrong if somebody changes the fw_card's DMA
scratch buffer's size in the future.
In case of quadlet write requests, sizeof(u32) is just silly; it's 4.
In case of SBP-2 ORB pointer write requests, 8 is arguably quicker to
understand as the correct and only possible value than
sizeof(some_datum).
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Diffstat (limited to 'drivers/firewire')
| -rw-r--r-- | drivers/firewire/core-card.c | 5 | ||||
| -rw-r--r-- | drivers/firewire/sbp2.c | 10 |
2 files changed, 6 insertions, 9 deletions
diff --git a/drivers/firewire/core-card.c b/drivers/firewire/core-card.c index ef6f2616cac7..156b098b0ada 100644 --- a/drivers/firewire/core-card.c +++ b/drivers/firewire/core-card.c @@ -296,8 +296,7 @@ static void fw_card_bm_work(struct work_struct *work) rcode = fw_run_transaction(card, TCODE_LOCK_COMPARE_SWAP, irm_id, generation, SCODE_100, CSR_REGISTER_BASE + CSR_BUS_MANAGER_ID, - card->bm_transaction_data, - sizeof(card->bm_transaction_data)); + card->bm_transaction_data, 8); if (rcode == RCODE_GENERATION) /* Another bus reset, BM work has been rescheduled. */ @@ -422,7 +421,7 @@ static void fw_card_bm_work(struct work_struct *work) rcode = fw_run_transaction(card, TCODE_WRITE_QUADLET_REQUEST, root_id, generation, SCODE_100, CSR_REGISTER_BASE + CSR_STATE_SET, - card->bm_transaction_data, sizeof(u32)); + card->bm_transaction_data, 4); if (rcode == RCODE_GENERATION) goto out; } diff --git a/drivers/firewire/sbp2.c b/drivers/firewire/sbp2.c index 7e33b0b1704c..ae715c82da2e 100644 --- a/drivers/firewire/sbp2.c +++ b/drivers/firewire/sbp2.c @@ -508,8 +508,7 @@ static void sbp2_send_orb(struct sbp2_orb *orb, struct sbp2_logical_unit *lu, fw_send_request(device->card, &orb->t, TCODE_WRITE_BLOCK_REQUEST, node_id, generation, device->max_speed, offset, - &orb->pointer, sizeof(orb->pointer), - complete_transaction, orb); + &orb->pointer, 8, complete_transaction, orb); } static int sbp2_cancel_orbs(struct sbp2_logical_unit *lu) @@ -654,7 +653,7 @@ static void sbp2_agent_reset(struct sbp2_logical_unit *lu) fw_run_transaction(device->card, TCODE_WRITE_QUADLET_REQUEST, lu->tgt->node_id, lu->generation, device->max_speed, lu->command_block_agent_address + SBP2_AGENT_RESET, - &d, sizeof(d)); + &d, 4); } static void complete_agent_reset_write_no_wait(struct fw_card *card, @@ -676,7 +675,7 @@ static void sbp2_agent_reset_no_wait(struct sbp2_logical_unit *lu) fw_send_request(device->card, t, TCODE_WRITE_QUADLET_REQUEST, lu->tgt->node_id, lu->generation, device->max_speed, lu->command_block_agent_address + SBP2_AGENT_RESET, - &d, sizeof(d), complete_agent_reset_write_no_wait, t); + &d, 4, complete_agent_reset_write_no_wait, t); } static inline void sbp2_allow_block(struct sbp2_logical_unit *lu) @@ -866,8 +865,7 @@ static void sbp2_set_busy_timeout(struct sbp2_logical_unit *lu) fw_run_transaction(device->card, TCODE_WRITE_QUADLET_REQUEST, lu->tgt->node_id, lu->generation, device->max_speed, - CSR_REGISTER_BASE + CSR_BUSY_TIMEOUT, - &d, sizeof(d)); + CSR_REGISTER_BASE + CSR_BUSY_TIMEOUT, &d, 4); } static void sbp2_reconnect(struct work_struct *work); |
