sfc: Remove some unreachable error paths
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>
diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c
index c41035a..f226dcf 100644
--- a/drivers/net/sfc/efx.c
+++ b/drivers/net/sfc/efx.c
@@ -282,13 +282,13 @@
}
/* Prepare channel's event queue */
-static int efx_init_eventq(struct efx_channel *channel)
+static void efx_init_eventq(struct efx_channel *channel)
{
EFX_LOG(channel->efx, "chan %d init event queue\n", channel->channel);
channel->eventq_read_ptr = 0;
- return falcon_init_eventq(channel);
+ falcon_init_eventq(channel);
}
static void efx_fini_eventq(struct efx_channel *channel)
@@ -354,12 +354,11 @@
* to propagate configuration changes (mtu, checksum offload), or
* to clear hardware error conditions
*/
-static int efx_init_channels(struct efx_nic *efx)
+static void efx_init_channels(struct efx_nic *efx)
{
struct efx_tx_queue *tx_queue;
struct efx_rx_queue *rx_queue;
struct efx_channel *channel;
- int rc = 0;
/* Calculate the rx buffer allocation parameters required to
* support the current MTU, including padding for header
@@ -374,36 +373,20 @@
efx_for_each_channel(channel, efx) {
EFX_LOG(channel->efx, "init chan %d\n", channel->channel);
- rc = efx_init_eventq(channel);
- if (rc)
- goto err;
+ efx_init_eventq(channel);
- efx_for_each_channel_tx_queue(tx_queue, channel) {
- rc = efx_init_tx_queue(tx_queue);
- if (rc)
- goto err;
- }
+ efx_for_each_channel_tx_queue(tx_queue, channel)
+ efx_init_tx_queue(tx_queue);
/* The rx buffer allocation strategy is MTU dependent */
efx_rx_strategy(channel);
- efx_for_each_channel_rx_queue(rx_queue, channel) {
- rc = efx_init_rx_queue(rx_queue);
- if (rc)
- goto err;
- }
+ efx_for_each_channel_rx_queue(rx_queue, channel)
+ efx_init_rx_queue(rx_queue);
WARN_ON(channel->rx_pkt != NULL);
efx_rx_strategy(channel);
}
-
- return 0;
-
- err:
- EFX_ERR(efx, "failed to initialise channel %d\n",
- channel ? channel->channel : -1);
- efx_fini_channels(efx);
- return rc;
}
/* This enables event queue processing and packet transmission.
@@ -1121,24 +1104,16 @@
}
/* A convinience function to safely flush all the queues */
-int efx_flush_queues(struct efx_nic *efx)
+void efx_flush_queues(struct efx_nic *efx)
{
- int rc;
-
EFX_ASSERT_RESET_SERIALISED(efx);
efx_stop_all(efx);
efx_fini_channels(efx);
- rc = efx_init_channels(efx);
- if (rc) {
- efx_schedule_reset(efx, RESET_TYPE_DISABLE);
- return rc;
- }
+ efx_init_channels(efx);
efx_start_all(efx);
-
- return 0;
}
/**************************************************************************
@@ -1311,7 +1286,6 @@
static int efx_net_stop(struct net_device *net_dev)
{
struct efx_nic *efx = netdev_priv(net_dev);
- int rc;
EFX_LOG(efx, "closing %s on CPU %d\n", net_dev->name,
raw_smp_processor_id());
@@ -1319,9 +1293,7 @@
/* Stop the device and flush all the channels */
efx_stop_all(efx);
efx_fini_channels(efx);
- rc = efx_init_channels(efx);
- if (rc)
- efx_schedule_reset(efx, RESET_TYPE_DISABLE);
+ efx_init_channels(efx);
return 0;
}
@@ -1404,16 +1376,10 @@
efx_fini_channels(efx);
net_dev->mtu = new_mtu;
- rc = efx_init_channels(efx);
- if (rc)
- goto fail;
+ efx_init_channels(efx);
efx_start_all(efx);
return rc;
-
- fail:
- efx_schedule_reset(efx, RESET_TYPE_DISABLE);
- return rc;
}
static int efx_set_mac_address(struct net_device *net_dev, void *data)
@@ -1588,22 +1554,19 @@
{
int rc;
- rc = efx_init_channels(efx);
- if (rc)
- goto fail1;
+ efx_init_channels(efx);
/* Restore MAC and PHY settings. */
rc = falcon_xmac_set_settings(efx, ecmd);
if (rc) {
EFX_ERR(efx, "could not restore PHY settings\n");
- goto fail2;
+ goto fail;
}
return 0;
- fail2:
+ fail:
efx_fini_channels(efx);
- fail1:
return rc;
}
@@ -2023,19 +1986,16 @@
goto fail5;
}
- rc = efx_init_channels(efx);
- if (rc)
- goto fail6;
+ efx_init_channels(efx);
rc = falcon_init_interrupt(efx);
if (rc)
- goto fail7;
+ goto fail6;
return 0;
- fail7:
- efx_fini_channels(efx);
fail6:
+ efx_fini_channels(efx);
efx_fini_port(efx);
fail5:
fail4: