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mv643xx_eth: kill ->rx_resource_err

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The ->rx_resource_err variable doesn't serve a useful purpose --
kill it.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Acked-by: Dale Farnsworth <dale@farnsworth.org>
This commit is contained in:
Lennert Buytenhek 2008-06-01 02:40:33 +02:00
parent 5dc4d174e2
commit fab1f6b1e2
1 changed files with 0 additions and 15 deletions
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15
drivers/net/mv643xx_eth.c
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@ -320,8 +320,6 @@ struct mv643xx_eth_private {
u32 tx_sram_addr; /* Base address of tx sram area */
u32 tx_sram_size; /* Size of tx sram area */
int rx_resource_err; /* Rx ring resource error flag */
/* Tx/Rx rings managment indexes fields. For driver use */
/* Next available and first returning Rx resource */
@ -472,9 +470,6 @@ static FUNC_RET_STATUS rx_return_buff(struct mv643xx_eth_private *mp,
/* Move the used descriptor pointer to the next descriptor */
mp->rx_used_desc_q = (used_rx_desc + 1) % mp->rx_ring_size;
/* Any Rx return cancels the Rx resource error status */
mp->rx_resource_err = 0;
spin_unlock_irqrestore(&mp->lock, flags);
return ETH_OK;
@ -531,10 +526,6 @@ static FUNC_RET_STATUS port_receive(struct mv643xx_eth_private *mp,
unsigned int command_status;
unsigned long flags;
/* Do not process Rx ring in case of Rx ring resource error */
if (mp->rx_resource_err)
return ETH_QUEUE_FULL;
spin_lock_irqsave(&mp->lock, flags);
/* Get the Rx Desc ring 'curr and 'used' indexes */
@ -569,10 +560,6 @@ static FUNC_RET_STATUS port_receive(struct mv643xx_eth_private *mp,
rx_next_curr_desc = (rx_curr_desc + 1) % mp->rx_ring_size;
mp->rx_curr_desc_q = rx_next_curr_desc;
/* Rx descriptors exhausted. Set the Rx ring resource error flag */
if (rx_next_curr_desc == rx_used_desc)
mp->rx_resource_err = 1;
spin_unlock_irqrestore(&mp->lock, flags);
return ETH_OK;
@ -1760,8 +1747,6 @@ static unsigned int set_tx_coal(struct mv643xx_eth_private *mp,
static void port_init(struct mv643xx_eth_private *mp)
{
mp->rx_resource_err = 0;
port_reset(mp);
init_mac_tables(mp);