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authorStefan Richter <stefanr@s5r6.in-berlin.de>2010-06-12 20:29:07 +0200
committerStefan Richter <stefanr@s5r6.in-berlin.de>2010-06-19 13:01:40 +0200
commite847cc832bab50aad939a0c30414cd986637564d (patch)
tree35b5d7af3e3f3337b8f7c9c43029618bec3a1f69 /drivers/firewire
parent65b2742ac002f554f6ca0c2eab84cc62400eafdf (diff)
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.c5
-rw-r--r--drivers/firewire/sbp2.c10
2 files changed, 6 insertions, 9 deletions
diff --git a/drivers/firewire/core-card.c b/drivers/firewire/core-card.c
index ef6f2616cac..156b098b0ad 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 7e33b0b1704..ae715c82da2 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);