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sfc: Remove some unreachable error paths

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Some functions return an error code which is always 0.  Change their
return types to void and simplify their callers accordingly.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This commit is contained in:
Ben Hutchings
2008-09-01 12:48:46 +01:00
committed by Jeff Garzik
parent c1e5fcc980
commit bc3c90a2b7
9 changed files with 39 additions and 95 deletions
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30
drivers/net/sfc/falcon.c
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@@ -242,7 +242,7 @@ static struct i2c_algo_bit_data falcon_i2c_bit_operations = {
* falcon_alloc_special_buffer()) in Falcon's buffer table, allowing
* it to be used for event queues, descriptor rings etc.
*/
static int
static void
falcon_init_special_buffer(struct efx_nic *efx,
struct efx_special_buffer *buffer)
{
@@ -266,8 +266,6 @@ falcon_init_special_buffer(struct efx_nic *efx,
BUF_OWNER_ID_FBUF, 0);
falcon_write_sram(efx, &buf_desc, index);
}
return 0;
}
/* Unmaps a buffer from Falcon and clears the buffer table entries */
@@ -449,16 +447,13 @@ int falcon_probe_tx(struct efx_tx_queue *tx_queue)
sizeof(efx_qword_t));
}
int falcon_init_tx(struct efx_tx_queue *tx_queue)
void falcon_init_tx(struct efx_tx_queue *tx_queue)
{
efx_oword_t tx_desc_ptr;
struct efx_nic *efx = tx_queue->efx;
int rc;
/* Pin TX descriptor ring */
rc = falcon_init_special_buffer(efx, &tx_queue->txd);
if (rc)
return rc;
falcon_init_special_buffer(efx, &tx_queue->txd);
/* Push TX descriptor ring to card */
EFX_POPULATE_OWORD_10(tx_desc_ptr,
@@ -495,8 +490,6 @@ int falcon_init_tx(struct efx_tx_queue *tx_queue)
set_bit_le(tx_queue->queue, (void *)&reg);
falcon_write(efx, &reg, TX_CHKSM_CFG_REG_KER_A1);
}
return 0;
}
static int falcon_flush_tx_queue(struct efx_tx_queue *tx_queue)
@@ -639,11 +632,10 @@ int falcon_probe_rx(struct efx_rx_queue *rx_queue)
sizeof(efx_qword_t));
}
int falcon_init_rx(struct efx_rx_queue *rx_queue)
void falcon_init_rx(struct efx_rx_queue *rx_queue)
{
efx_oword_t rx_desc_ptr;
struct efx_nic *efx = rx_queue->efx;
int rc;
bool is_b0 = falcon_rev(efx) >= FALCON_REV_B0;
bool iscsi_digest_en = is_b0;
@@ -652,9 +644,7 @@ int falcon_init_rx(struct efx_rx_queue *rx_queue)
rx_queue->rxd.index + rx_queue->rxd.entries - 1);
/* Pin RX descriptor ring */
rc = falcon_init_special_buffer(efx, &rx_queue->rxd);
if (rc)
return rc;
falcon_init_special_buffer(efx, &rx_queue->rxd);
/* Push RX descriptor ring to card */
EFX_POPULATE_OWORD_10(rx_desc_ptr,
@@ -671,7 +661,6 @@ int falcon_init_rx(struct efx_rx_queue *rx_queue)
RX_DESCQ_EN, 1);
falcon_write_table(efx, &rx_desc_ptr, efx->type->rxd_ptr_tbl_base,
rx_queue->queue);
return 0;
}
static int falcon_flush_rx_queue(struct efx_rx_queue *rx_queue)
@@ -1205,20 +1194,17 @@ int falcon_probe_eventq(struct efx_channel *channel)
return falcon_alloc_special_buffer(efx, &channel->eventq, evq_size);
}
int falcon_init_eventq(struct efx_channel *channel)
void falcon_init_eventq(struct efx_channel *channel)
{
efx_oword_t evq_ptr;
struct efx_nic *efx = channel->efx;
int rc;
EFX_LOG(efx, "channel %d event queue in special buffers %d-%d\n",
channel->channel, channel->eventq.index,
channel->eventq.index + channel->eventq.entries - 1);
/* Pin event queue buffer */
rc = falcon_init_special_buffer(efx, &channel->eventq);
if (rc)
return rc;
falcon_init_special_buffer(efx, &channel->eventq);
/* Fill event queue with all ones (i.e. empty events) */
memset(channel->eventq.addr, 0xff, channel->eventq.len);
@@ -1232,8 +1218,6 @@ int falcon_init_eventq(struct efx_channel *channel)
channel->channel);
falcon_set_int_moderation(channel);
return 0;
}
void falcon_fini_eventq(struct efx_channel *channel)