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[e1000] Remove unused variable when ICR register is simply cleared

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On reset and close, the ICR register is read to clear any pending
interrupts, but the value is simply ignored.  Avoid assigning the
value to a variable, to inhibit a warning from gcc 4.6.

Also fix a potential race condition in reset routines which clear
interrupts before disabling them.

Reported-by: Ralph Giles <giles@thaumas.net>
Tested-by: Ralph Giles <giles@thaumas.net>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2011-03-16 18:58:52 +00:00
parent d94e62ded4
commit c018d57803
12 changed files with 24 additions and 30 deletions
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4
src/drivers/net/igbvf/igbvf_main.c
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@@ -666,12 +666,12 @@ static void igbvf_close ( struct net_device *netdev )
struct igbvf_adapter *adapter = netdev_priv ( netdev );
struct e1000_hw *hw = &adapter->hw;
uint32_t rxdctl;
uint32_t icr;
DBG ( "igbvf_close\n" );
icr = er32(EICR);
/* Disable and acknowledge interrupts */
igbvf_irq_disable ( adapter );
er32(EICR);
/* disable receives */
rxdctl = er32 ( RXDCTL(0) );