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[pxe] Work around missing PXENV_UNDI_OPEN only when necessary

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Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown 2014-05-03 01:07:38 +01:00
parent 90caf71051
commit 206bd7bb64
1 changed files with 4 additions and 2 deletions
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6
src/arch/i386/interface/pxe/pxe_undi.c
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@ -330,8 +330,10 @@ pxenv_undi_transmit ( struct s_PXENV_UNDI_TRANSMIT *undi_transmit ) {
* processing at this point, to work around callers that never
* call PXENV_UNDI_OPEN before attempting to use the UNDI API.
*/
netdev_rx_freeze ( pxe_netdev );
netdev_irq ( pxe_netdev, 1 );
if ( ! netdev_rx_frozen ( pxe_netdev ) ) {
netdev_rx_freeze ( pxe_netdev );
netdev_irq ( pxe_netdev, 1 );
}
/* Identify network-layer protocol */
switch ( undi_transmit->Protocol ) {